NGL Energy Partners (NGL) 10-Q 6 Feb 20 2020 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Dec. 31, 2019	Feb. 03, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-35172
Entity Registrant Name	NGL Energy Partners LP
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	27-3427920
Entity Address, Address Line One	6120 South Yale Avenue, Suite 805
Entity Address, City or Town	Tulsa,
Entity Address, State or Province	OK
Entity Address, Postal Zip Code	74136
City Area Code	(918)
Local Phone Number	481-1119
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		128,348,906
Entity Central Index Key	0001504461
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Document Fiscal Year Focus	2020
Document Fiscal Period Focus	Q3
Entity Small Business	false
Entity Emerging Growth Company	false
NEW YORK STOCK EXCHANGE, INC. | Common units
Entity Information [Line Items]
Title of 12(b) Security	Common units representing Limited Partner Interests
Trading Symbol	NGL
Security Exchange Name	NYSE
NEW YORK STOCK EXCHANGE, INC. | Class B Perpetual Preferred Units
Entity Information [Line Items]
Title of 12(b) Security	Fixed-to-floating rate cumulative redeemable perpetual preferred units
Trading Symbol	NGL-PB
Security Exchange Name	NYSE
NEW YORK STOCK EXCHANGE, INC. | Class C Perpetual Preferred Units
Entity Information [Line Items]
Title of 12(b) Security	Fixed-to-floating rate cumulative redeemable perpetual preferred units
Trading Symbol	NGL-PC
Security Exchange Name	NYSE

Unaudited Condensed Consolidate

Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
CURRENT ASSETS:
Cash and cash equivalents	$ 12,008	$ 18,572
Accounts receivable-trade, net of allowance for doubtful accounts of $4,055 and $4,016, respectively	947,534	998,203
Accounts receivable-affiliates	12,445	12,867
Inventories	183,738	136,128
Prepaid expenses and other current assets	90,694	65,918
Assets held for sale	95,093	580,985
Total current assets	1,341,512	1,812,673
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation of $504,731 and $417,457, respectively	2,704,112	1,828,940
GOODWILL	1,307,055	1,110,456
INTANGIBLE ASSETS, net of accumulated amortization of $603,573 and $503,117, respectively	1,600,555	800,889
INVESTMENTS IN UNCONSOLIDATED ENTITIES	22,236	1,127
OPERATING LEASE RIGHT-OF-USE ASSETS	183,141	0
OTHER NONCURRENT ASSETS	83,944	113,857
ASSETS HELD FOR SALE	0	234,551
Total assets	7,242,555	5,902,493
CURRENT LIABILITIES:
Accounts payable-trade	846,767	879,063
Accounts payable-affiliates	29,374	28,469
Accrued expenses and other payables	352,848	107,759
Advance payments received from customers	29,993	8,461
Current maturities of long-term debt	4,835	648
Operating lease obligations	57,091	0
Liabilities held for sale	40,899	226,753
Total current liabilities	1,361,807	1,251,153
LONG-TERM DEBT, net of debt issuance costs of $20,263 and $12,008, respectively, and current maturities	3,068,205	2,160,133
OPERATING LEASE OBLIGATIONS	122,798	0
OTHER NONCURRENT LIABILITIES	104,060	63,542
NONCURRENT LIABILITIES HELD FOR SALE	0	33
COMMITMENTS AND CONTINGENCIES (NOTE 9)
EQUITY:
General partner, representing a 0.1% interest, 128,477 and 124,633 notional units, respectively	(51,038)	(50,603)
Limited partners, representing a 99.9% interest, 128,348,906 and 124,508,497 common units issued and outstanding, respectively	1,682,071	2,067,197
Accumulated other comprehensive loss	(248)	(255)
Noncontrolling interests	74,739	58,748
Total equity	2,053,917	2,277,818
Total liabilities and equity	7,242,555	5,902,493
Class A Convertible Preferred Units
CURRENT LIABILITIES:
CONVERTIBLE PREFERRED UNITS	0	149,814
Class D Preferred Units
CURRENT LIABILITIES:
CONVERTIBLE PREFERRED UNITS	531,768	0
Class B Perpetual Preferred Units
EQUITY:
Preferred limited partners	305,488	202,731
Class C Perpetual Preferred Units
EQUITY:
Preferred limited partners	$ 42,905	$ 0

Unaudited Condensed Consolida_2

Unaudited Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Dec. 31, 2019	Mar. 31, 2019
Accounts receivable - trade, allowance for doubtful accounts	$ 4,055	$ 4,016
PROPERTY, PLANT AND EQUIPMENT, accumulated depreciation	504,731	417,457
INTANGIBLE ASSETS, accumulated amortization	603,573	503,117
Debt issuance costs, noncurrent, net	$ 20,263	$ 12,008
General partner interest	0.10%	0.10%
General partner, notional units outstanding (in units)	128,477	124,633
Limited partner interest	99.90%	99.90%
Limited partners, common units issued (in units)	128,348,906	124,508,497
Limited partners, common units outstanding (in units)	128,348,906	124,508,497
Class A Convertible Preferred Units
Preferred units dividend rate		10.75%
Temporary equity, issued (in units)		19,942,169
Temporary equity, outstanding (in units)		19,942,169
Class D Preferred Units
Preferred units dividend rate	9.00%
Temporary equity, issued (in units)	600,000
Temporary equity, outstanding (in units)	600,000
Class B Perpetual Preferred Units
Preferred units, issued (in units)	12,585,642	8,400,000
Preferred units, outstanding (in units)	12,585,642	8,400,000
Class C Perpetual Preferred Units
Preferred units, issued (in units)	1,800,000
Preferred units, outstanding (in units)	1,800,000

Unaudited Condensed Consolida_3

Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
REVENUES:
Crude Oil Logistics	$ 690,989	$ 751,180	$ 2,048,301	$ 2,395,064
Water Solutions	121,607	75,458	294,639	231,367
Liquids	685,625	749,433	1,361,781	1,759,772
Refined Products and Renewables	728,028	718,979	2,197,236	2,178,734
Other	280	319	799	1,066
Revenues	2,226,529	2,295,369	5,902,756	6,566,003
COST OF SALES:
Crude Oil Logistics	628,443	685,417	1,847,382	2,226,397
Water Solutions	14,004	(39,470)	4,701	(17,309)
Liquids	592,340	707,187	1,205,938	1,668,646
Refined Products and Renewables	700,248	695,033	2,155,247	2,167,458
Other	437	494	1,337	1,481
Total Cost of Sales	1,935,472	2,048,661	5,214,605	6,046,673
OPERATING COSTS AND EXPENSES:
Operating	94,412	60,465	230,610	172,219
General and administrative	29,150	24,759	93,400	86,428
Depreciation and amortization	73,726	53,281	190,593	157,771
(Gain) loss on disposal or impairment of assets, net	(12,626)	(36,246)	(10,482)	71,077
Revaluation of liabilities	10,000	0	10,000	800
Operating Income	96,395	144,449	174,030	31,035
OTHER INCOME (EXPENSE):
Equity in earnings of unconsolidated entities	534	1,777	277	2,375
Interest expense	(46,920)	(39,151)	(131,814)	(126,776)
Loss on early extinguishment of liabilities, net	0	(10,083)	0	(10,220)
Other (expense) income, net	(226)	1,187	967	(31,415)
Income (Loss) From Continuing Operations Before Income Taxes	49,783	98,179	43,460	(135,001)
INCOME TAX EXPENSE	(677)	(980)	(996)	(2,322)
Income (Loss) From Continuing Operations	49,106	97,199	42,464	(137,323)
(Loss) Income From Discontinued Operations, net of Tax	(6,115)	13,329	(192,800)	433,501
Net Income (Loss)	42,991	110,528	(150,336)	296,178
LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	166	307	563	1,170
LESS: NET LOSS ATTRIBUTABLE TO REDEEMABLE NONCONTROLLING INTERESTS	0	0	0	446
NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	43,157	110,835	(149,773)	297,794
NET INCOME (LOSS) FROM CONTINUING OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	28,895	67,656	(123,792)	(209,928)
NET (LOSS) INCOME FROM DISCONTINUED OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	(6,109)	13,316	(192,607)	433,513
NET INCOME (LOSS) ALLOCATED TO COMMON UNITHOLDERS	$ 22,786	$ 80,972	$ (316,399)	$ 223,585
BASIC INCOME (LOSS) PER COMMON UNIT
Income (Loss) From Continuing Operations	$ 0.23	$ 0.54	$ (0.97)	$ (1.71)
(Loss) Income From Discontinued Operations, net of Tax	(0.05)	0.11	(1.52)	3.53
Net Income (Loss)	0.18	0.65	(2.49)	1.82
DILUTED INCOME (LOSS) PER COMMON UNIT
Income (Loss) From Continuing Operations	0.22	0.53	(0.97)	(1.71)
(Loss) Income From Discontinued Operations, net of Tax	(0.05)	0.11	(1.52)	3.53
Net Income (Loss)	$ 0.18	$ 0.64	$ (2.49)	$ 1.82
BASIC WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	128,201,369	123,892,680	127,026,510	122,609,625
DILUTED WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	129,358,590	125,959,751	127,026,510	122,609,625

Unaudited Condensed Consolida_4

Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($)	3 Months Ended						9 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 42,991,000			$ 110,528,000			$ (150,336,000)	$ 296,178,000
Other comprehensive income (loss)	16,000	$ (46,000)	$ 37,000	(3,000)	$ (13,000)	$ (11,000)	7,000	(27,000)
Comprehensive income (loss)	$ 43,007,000			$ 110,525,000			$ (150,329,000)	$ 296,151,000

Unaudited Condensed Consolida_5

Unaudited Condensed Consolidated Statements of Changes in Equity - USD ($)	Total	Preferred Stock	Accumulated other comprehensive (loss) income	Noncontrolling Interests	Preferred Stock	General Partner	Limited Partner	Limited PartnerCommon units
Beginning Balance (in units) at Mar. 31, 2018		8,400,000						121,472,725
Beginning Balance at Mar. 31, 2018	$ 2,086,095,000		$ (1,815,000)	$ 83,503,000	$ 202,731,000	$ (50,819,000)	$ 1,852,495,000
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(58,630,000)					(82,000)	(58,548,000)
Contributions	169,000			169,000
Sawtooth joint venture	0			63,000			(63,000)
Purchase of noncontrolling interest	(3,960,000)			(3,927,000)			(33,000)
Redeemable noncontrolling interest valuation adjustment	(3,300,000)						(3,300,000)
Repurchase of warrants	(14,988,000)						(14,988,000)
Equity issued pursuant to incentive compensation plan (in units)								50,992
Equity issued pursuant to incentive compensation plan (Note 10)	4,619,000						4,619,000
Warrants exercised (in units)								228,797
Warrants exercised (Note 10)	2,000						2,000
Accretion of beneficial conversion feature of Class A convertible preferred units (Note 10)	(8,983,000)						(8,983,000)
Net (loss) income	(168,891,000)			(345,000)		(155,000)	(168,391,000)
Other comprehensive loss	(11,000)		(11,000)
Ending Balance (in units) at Jun. 30, 2018		8,400,000						121,752,514
Ending Balance at Jun. 30, 2018	1,971,428,000		(257,000)	79,463,000	202,731,000	(50,919,000)	1,740,410,000
Beginning Balance (in units) at Mar. 31, 2018		8,400,000						121,472,725
Beginning Balance at Mar. 31, 2018	2,086,095,000		(1,815,000)	83,503,000	202,731,000	(50,819,000)	1,852,495,000
Increase (Decrease) in Partnership Capital
Repurchase of warrants	(14,988,000)
Investment in NGL Energy Holdings LLC	0
Other comprehensive loss	(27,000)
Ending Balance (in units) at Dec. 31, 2018		8,400,000						124,033,723
Ending Balance at Dec. 31, 2018	2,315,441,000		(273,000)	77,784,000	202,731,000	(50,581,000)	2,085,780,000
Increase (Decrease) in Partnership Capital
Cumulative effect adjustment for adoption of ASC 606	139,306,000
Cumulative effect adjustment for adoption of ASC 606 | General Partner						139,000
Cumulative effect adjustment for adoption of ASC 606 | Limited Partner							139,167,000
Cumulative effect adjustment for adoption of ASU 2016-01	0
Cumulative effect adjustment for adoption of ASU 2016-01 | General Partner						(2,000)
Cumulative effect adjustment for adoption of ASU 2016-01 | Limited Partner			1,569,000				(1,567,000)
Beginning Balance (in units) at Jun. 30, 2018		8,400,000						121,752,514
Beginning Balance at Jun. 30, 2018	1,971,428,000		(257,000)	79,463,000	202,731,000	(50,919,000)	1,740,410,000
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(58,856,000)					(82,000)	(58,774,000)
Redeemable noncontrolling interest valuation adjustment	(49,000)						(49,000)
Common unit repurchases and cancellations (in units)								(4,661)
Common unit repurchases and cancellations (Note 10)	(54,000)						(54,000)
Equity issued pursuant to incentive compensation plan (in units)								1,993,609
Equity issued pursuant to incentive compensation plan (Note 10)	22,774,000					21,000	22,753,000
Accretion of beneficial conversion feature of Class A convertible preferred units (Note 10)	(12,803,000)						(12,803,000)
Net (loss) income	354,987,000			(518,000)		367,000	355,138,000
Other comprehensive loss	(13,000)		(13,000)
Ending Balance (in units) at Sep. 30, 2018		8,400,000						123,741,462
Ending Balance at Sep. 30, 2018	2,277,414,000		(270,000)	78,945,000	202,731,000	(50,613,000)	2,046,621,000
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(59,517,000)					(83,000)	(59,434,000)
Sawtooth joint venture	(854,000)			(854,000)
Common unit repurchases and cancellations (in units)								(10,889)
Common unit repurchases and cancellations (Note 10)	(108,000)						(108,000)
Equity issued pursuant to incentive compensation plan (in units)								303,150
Equity issued pursuant to incentive compensation plan (Note 10)	6,554,000						6,554,000
Accretion of beneficial conversion feature of Class A convertible preferred units (Note 10)	(18,573,000)						(18,573,000)
Net (loss) income	110,528,000			(307,000)		115,000	110,720,000
Other comprehensive loss	(3,000)		(3,000)
Ending Balance (in units) at Dec. 31, 2018		8,400,000						124,033,723
Ending Balance at Dec. 31, 2018	2,315,441,000		(273,000)	77,784,000	202,731,000	(50,581,000)	2,085,780,000
Beginning Balance (in units) at Mar. 31, 2019		8,400,000						124,508,497
Beginning Balance at Mar. 31, 2019	2,277,818,000		(255,000)	58,748,000	202,731,000	(50,603,000)	2,067,197,000
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(63,359,000)					(85,000)	(63,274,000)
Preferred units, issued (in units)		1,800,000
Preferred units issued, net of offering costs	42,638,000				42,638,000
Equity issued pursuant to incentive compensation plan (in units)								0
Equity issued pursuant to incentive compensation plan (Note 10)	2,752,000					0	2,752,000
Warrants exercised (in units)								1,458,371
Warrants exercised (Note 10)	15,000						15,000
Accretion of beneficial conversion feature of Class A convertible preferred units (Note 10)	(36,517,000)						(36,517,000)
Class A convertible preferred units redemption - amount paid in excess of carrying value (Note 10)	(78,797,000)						(78,797,000)
Investment in NGL Energy Holdings LLC	(2,361,000)						(2,361,000)
Net (loss) income	8,039,000			(268,000)		(85,000)	8,392,000
Other comprehensive loss	37,000		37,000
Ending Balance (in units) at Jun. 30, 2019		10,200,000						125,966,868
Ending Balance at Jun. 30, 2019	2,150,265,000		(218,000)	58,480,000	245,369,000	(50,773,000)	1,897,407,000
Beginning Balance (in units) at Mar. 31, 2019		8,400,000						124,508,497
Beginning Balance at Mar. 31, 2019	2,277,818,000		(255,000)	58,748,000	202,731,000	(50,603,000)	2,067,197,000
Increase (Decrease) in Partnership Capital
Preferred units issued, net of offering costs						100,000
Repurchase of warrants	0
Investment in NGL Energy Holdings LLC	15,226,000
Other comprehensive loss	7,000
Ending Balance (in units) at Dec. 31, 2019		14,385,642						128,348,906
Ending Balance at Dec. 31, 2019	2,053,917,000		(248,000)	74,739,000	348,393,000	(51,038,000)	1,682,071,000
Beginning Balance (in units) at Jun. 30, 2019		10,200,000						125,966,868
Beginning Balance at Jun. 30, 2019	2,150,265,000		(218,000)	58,480,000	245,369,000	(50,773,000)	1,897,407,000
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(55,110,000)					(85,000)	(55,025,000)
Preferred units, issued (in units)		4,185,642
Preferred units issued, net of offering costs	102,757,000				102,757,000
Class C preferred units issuance costs	267,000				267,000
Issuance of warrants, net of offering costs (Note 10)	41,685,000						41,685,000
Sawtooth joint venture	(570,000)			(570,000)
Common unit repurchases and cancellations (in units)								(78,229)
Common unit repurchases and cancellations (Note 10)	(1,098,000)						(1,098,000)
Equity issued pursuant to incentive compensation plan (in units)								2,151,781
Equity issued pursuant to incentive compensation plan (Note 10)	26,593,000					27,000	26,566,000
Investment in NGL Energy Holdings LLC	(11,466,000)						(11,466,000)
Net (loss) income	(201,366,000)			(129,000)		(183,000)	(201,054,000)
Other comprehensive loss	(46,000)		(46,000)
Ending Balance (in units) at Sep. 30, 2019		14,385,642						128,040,420
Ending Balance at Sep. 30, 2019	2,051,911,000		(264,000)	57,781,000	348,393,000	(51,014,000)	1,697,015,000
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(69,439,000)					(86,000)	(69,353,000)
Mesquite acquisition (Note 4)	17,124,000			17,124,000
Issuance of warrants, net of offering costs (Note 10)	11,057,000						11,057,000
Common unit repurchases and cancellations (in units)								(10,489)
Common unit repurchases and cancellations (Note 10)	(107,000)						(107,000)
Equity issued pursuant to incentive compensation plan (in units)								318,975
Equity issued pursuant to incentive compensation plan (Note 10)	1,763,000					3,000	1,760,000
Investment in NGL Energy Holdings LLC	(1,399,000)						(1,399,000)
Net (loss) income	42,991,000			(166,000)		59,000	43,098,000
Other comprehensive loss	16,000		16,000
Ending Balance (in units) at Dec. 31, 2019		14,385,642						128,348,906
Ending Balance at Dec. 31, 2019	$ 2,053,917,000		$ (248,000)	$ 74,739,000	$ 348,393,000	$ (51,038,000)	$ 1,682,071,000

Unaudited Condensed Consolida_6

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
OPERATING ACTIVITIES:
Net (loss) income	$ (150,336)	$ 296,178
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Loss (income) from discontinued operations, net of tax	192,800	(433,501)
Depreciation and amortization, including amortization of debt issuance costs	198,613	165,266
Loss on early extinguishment or revaluation of liabilities, net	10,000	11,020
Non-cash equity-based compensation expense	27,209	32,575
(Gain) loss on disposal or impairment of assets, net	(10,482)	71,077
Provision for doubtful accounts	718	422
Net adjustments to fair value of commodity derivatives	(773)	(30,031)
Equity in earnings of unconsolidated entities	(277)	(2,375)
Distributions of earnings from unconsolidated entities	0	1,500
Lower of cost or market value adjustment	291	12,525
Other	1,630	(225)
Changes in operating assets and liabilities, exclusive of acquisitions:
Accounts receivable-trade and affiliates	58,457	(59,155)
Inventories	(50,658)	(95,372)
Other current and noncurrent assets	11,061	29,597
Accounts payable-trade and affiliates	(31,862)	747
Other current and noncurrent liabilities	17,197	2,947
Net cash provided by operating activities-continuing operations	273,588	3,195
Net cash provided by operating activities-discontinued operations	59,890	112,463
Net cash provided by operating activities	333,478	115,658
INVESTING ACTIVITIES:
Capital expenditures	(427,253)	(303,989)
Acquisitions, net of cash acquired	(1,262,853)	(197,971)
Net settlements of commodity derivatives	2,735	5,066
Proceeds from sales of assets	17,056	8,335
Proceeds from divestitures of businesses and investments, net	0	103,594
Investments in unconsolidated entities	(21,272)	(92)
Distributions of capital from unconsolidated entities	440	0
Repayments on loan for natural gas liquids facility	3,022	8,371
Loan to affiliate	0	(1,515)
Net cash used in investing activities-continuing operations	(1,688,125)	(378,201)
Net cash provided by investing activities-discontinued operations	281,908	936,691
Net cash (used in) provided by investing activities	(1,406,217)	558,490
FINANCING ACTIVITIES:
Proceeds from borrowings under Revolving Credit Facility	3,461,000	2,956,500
Payments on Revolving Credit Facility	(3,240,000)	(3,037,000)
Issuance of senior unsecured notes and term credit agreement	700,000	0
Repayment and repurchase of senior unsecured notes	0	(395,471)
Payments on other long-term debt	(489)	(488)
Debt issuance costs	(13,198)	(915)
Contributions from noncontrolling interest owners, net	0	169
Distributions to general and common unit partners and preferred unitholders	(180,021)	(177,003)
Distributions to noncontrolling interest owners	(570)	0
Proceeds from sale of preferred units, net of offering costs	622,965	0
Payments for redemption of preferred units	(265,128)	0
Repurchase of warrants	0	(14,988)
Common unit repurchases and cancellations	(1,205)	(162)
Payments for settlement and early extinguishment of liabilities	(1,953)	(3,534)
Investment in NGL Energy Holdings LLC	15,226	0
Net cash provided by (used in) financing activities-continuing operations	1,066,175	(672,892)
Net cash used in financing activities-discontinued operations	0	(325)
Net cash provided by (used in) financing activities	1,066,175	(673,217)
Net (decrease) increase in cash and cash equivalents	(6,564)	931
Cash and cash equivalents, beginning of period	18,572	22,094
Cash and cash equivalents, end of period	12,008	23,025
Supplemental cash flow information:
Cash interest paid	123,562	132,318
Income taxes paid (net of income tax refunds)	4,272	1,893
Supplemental non-cash investing and financing activities:
Distributions declared but not paid to Class B, Class C and Class D preferred unitholders	12,612	4,725
Accrued capital expenditures	$ 40,834	$ 34,734

Organization and Operations

Organization and Operations	9 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Operations	Organization and Operations NGL Energy Partners LP (“we,” “us,” “our,” or the “Partnership”) is a Delaware limited partnership . NGL Energy Holdings LLC serves as our general partner. At December 31, 2019 , our operations included: • Our Crude Oil Logistics segment purchases crude oil from producers and marketers and transports it to refineries or for resale at pipeline injection stations, storage terminals, barge loading facilities, rail facilities, refineries, and other trade hubs, and provides storage, terminaling, trucking, marine and pipeline transportation services through its owned assets. • Our Water Solutions segment provides services for the treatment and disposal of produced water generated from crude oil and natural gas production and for the disposal of solids such as tank bottoms, drilling fluids and drilling muds and performs truck and frac tank washouts. In addition, our Water Solutions segment sells the recovered hydrocarbons that result from performing these services and sells freshwater to producers for exploration and production activities. • Our Liquids segment supplies natural gas liquids to retailers, wholesalers, refiners, and petrochemical plants throughout the United States and in Canada using its leased underground storage and fleet of leased railcars, markets regionally through its 27 owned terminals throughout the United States, and provides terminaling and storage services at its salt dome storage facility joint venture in Utah. • Our Refined Products and Renewables segment conducts diesel, ethanol, and biodiesel marketing operations, purchases refined petroleum and renewable products primarily in the Gulf Coast, West Coast and Midwest regions of the United States and schedules them for delivery at various locations throughout the country. See below for a discussion of the sale of a portion of our Refined Products and Renewables segment. Recent Developments On September 30, 2019, we completed the sale of TransMontaigne Product Services, LLC (“TPSL”) and associated assets to Trajectory Acquisition Company, LLC (“Trajectory”) for total consideration of approximately $233.8 million , including equity consideration, inventory and net working capital (see Note 17 ). TPSL made up a portion of our Refined Products and Renewables segment. The divested assets include (i) TPSL Terminaling Services Agreement with TransMontaigne Partners LP, including the exclusive rights to utilize 19 terminals; (ii) line space along Colonial and Plantation Pipelines; (iii) two wholly-owned refined products terminals in Georgia that we acquired in January 2019 and multiple third-party throughput agreements; and (iv) all associated customer contracts, inventory and other working capital associated with the assets. In December 2019, the Partnership formalized a plan and received approval to divest of its gas blending business in the southeastern and eastern regions of the United States (“Gas Blending”) and its refined products marketing business in the mid-continent region of the United States (“Mid-Con”). The Partnership had determined that these businesses were no longer core to the Partnership’s strategy. These transactions represent a strategic shift in our operations and will have a significant effect on our operations and financial results going forward. Accordingly, the results of operations and cash flows related to TPSL, Mid-Con and Gas Blending have been classified as discontinued operations for all periods presented, and prior periods have been retrospectively adjusted in the unaudited condensed consolidated statements of operations and unaudited condensed consolidated statements of cash flows. In addition, the assets and liabilities related to TPSL have been classified as held for sale in our March 31, 2019 unaudited condensed consolidated balance sheet and certain assets and liabilities, particularly inventory, derivatives and leases, related to Mid-Con and Gas Blending have been classified as held for sale in our December 31, 2019 and March 31, 2019 unaudited condensed consolidated balance sheets. On January 3, 2020, we completed the sale of Mid-Con to a third-party. See Note 16 for a further discussion of these transactions . As previously disclosed, on July 10, 2018, we completed the sale of virtually all of our remaining Retail Propane segment to Superior Plus Corp. (“Superior”) for total consideration of $889.8 million in cash. We retained our 50% ownership interest in Victory Propane, LLC (“Victory Propane”), which we subsequently sold on August 14, 2018. This transaction represented a strategic shift in our operations and will have a significant effect on our operations and financial results going forward. Accordingly, the results of operations and cash flows related to our former Retail Propane segment (including equity in earnings of Victory Propane) have been classified as discontinued operations for all periods presented and prior periods have been retrospectively adjusted in the unaudited condensed consolidated statements of operations and unaudited condensed consolidated statements of cash flows.

Significant Accounting Policies

Significant Accounting Policies	9 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Significant Accounting Policies	Significant Accounting Policies Basis of Presentation The accompanying unaudited condensed consolidated financial statements include our accounts and those of our controlled subsidiaries. Intercompany transactions and account balances have been eliminated in consolidation. Investments we do not control, but can exercise significant influence over, are accounted for using the equity method of accounting. We also own an undivided interest in a crude oil pipeline, and include our proportionate share of assets, liabilities, and expenses related to this pipeline in our unaudited condensed consolidated financial statements. Our unaudited condensed consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim consolidated financial information in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, the unaudited condensed consolidated financial statements exclude certain information and notes required by GAAP for complete annual consolidated financial statements. However, we believe that the disclosures made are adequate to make the information presented not misleading. The unaudited condensed consolidated financial statements include all adjustments that we consider necessary for a fair presentation of our consolidated financial position, results of operations and cash flows for the interim periods presented. Such adjustments consist only of normal recurring items, unless otherwise disclosed in this Quarterly Report. The unaudited condensed consolidated balance sheet at March 31, 2019 was derived from our audited consolidated financial statements for the fiscal year ended March 31, 2019 included in our Current Report on Form 8-K (“Current Report”) filed with the SEC on November 22, 2019. These interim unaudited condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and notes thereto included in our Current Report. Due to the seasonal nature of certain of our operations and other factors, the results of operations for interim periods are not necessarily indicative of the results of operations to be expected for future periods or for the full fiscal year ending March 31, 2020 . Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amount of assets and liabilities reported at the date of the consolidated financial statements and the amount of revenues and expenses reported during the periods presented. Critical estimates we make in the preparation of our unaudited condensed consolidated financial statements include, among others, determining the fair value of assets and liabilities acquired in acquisitions, the fair value of derivative instruments, the collectibility of accounts receivable, the recoverability of inventories, useful lives and recoverability of property, plant and equipment and amortizable intangible assets, the impairment of long-lived assets and goodwill, the fair value of asset retirement obligations, the value of equity-based compensation, accruals for environmental matters and estimating certain revenues. Although we believe these estimates are reasonable, actual results could differ from those estimates. Significant Accounting Policies Our significant accounting policies are consistent with those disclosed in Note 2 of our audited consolidated financial statements included in our Current Report. Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. Fair value is based upon assumptions that market participants would use when pricing an asset or liability. We use the following fair value hierarchy, which prioritizes valuation technique inputs used to measure fair value into three broad levels: • Level 1: Quoted prices in active markets for identical assets and liabilities that we have the ability to access at the measurement date. • Level 2: Inputs (other than quoted prices included within Level 1) that are either directly or indirectly observable for the asset or liability, including (i) quoted prices for similar assets or liabilities in active markets, (ii) quoted prices for identical or similar assets or liabilities in inactive markets, (iii) inputs other than quoted prices that are observable for the asset or liability, and (iv) inputs that are derived from observable market data by correlation or other means. Instruments categorized in Level 2 include non-exchange traded derivatives such as over-the-counter commodity price swap and option contracts and forward commodity contracts. We determine the fair value of all of our derivative financial instruments utilizing pricing models for similar instruments. Inputs to the pricing models include publicly available prices and forward curves generated from a compilation of data gathered from third parties. • Level 3: Unobservable inputs for the asset or liability including situations where there is little, if any, market activity for the asset or liability. The fair value hierarchy gives the highest priority to quoted prices in active markets (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall into different levels of the fair value hierarchy. The lowest level input that is significant to a fair value measurement determines the applicable level in the fair value hierarchy. Assessing the significance of a particular input to a fair value measurement requires judgment, considering factors specific to the asset or liability. Derivative Financial Instruments We record all derivative financial instrument contracts at fair value in our unaudited condensed consolidated balance sheets except for certain physical contracts that qualify for the normal purchase and normal sale election . Under this accounting policy election, we do not record the physical contracts at fair value at each balance sheet date; instead, we record the purchase or sale at the contracted value once the delivery occurs. We have not designated any financial instruments as hedges for accounting purposes. All changes in the fair value of our physical contracts that do not qualify as normal purchases and normal sales and settlements (whether cash transactions or non-cash mark-to-market adjustments) are reported either within revenue (for sales contracts) or cost of sales (for purchase contracts) in our unaudited condensed consolidated statements of operations, regardless of whether the contract is physically or financially settled. We utilize various commodity derivative financial instrument contracts to attempt to reduce our exposure to price fluctuations. We do not enter into such contracts for trading purposes. Changes in assets and liabilities from commodity derivative financial instruments result primarily from changes in market prices, newly originated transactions, and the timing of settlements and are reported within cost of sales on the unaudited condensed consolidated statements of operations, along with related settlements. We attempt to balance our contractual portfolio in terms of notional amounts and timing of performance and delivery obligations. However, net unbalanced positions can exist or are established based on our assessment of anticipated market movements. Inherent in the resulting contractual portfolio are certain business risks, including commodity price risk and credit risk. Commodity price risk is the risk that the market value of crude oil, natural gas liquids, or refined and renewables products will change, either favorably or unfavorably, in response to changing market conditions. Credit risk is the risk of loss from nonperformance by suppliers, customers or financial counterparties to a contract. Procedures and limits for managing commodity price risks and credit risks are specified in our market risk policy and credit policy, respectively. Open commodity positions and market price changes are monitored daily and are reported to senior management and to marketing operations personnel. Credit risk is monitored daily and exposure is minimized through customer deposits, restrictions on product liftings, letters of credit, and entering into master netting agreements that allow for offsetting counterparty receivable and payable balances for certain transactions. Income Taxes We qualify as a partnership for income tax purposes. As such, we generally do not pay United States federal income tax. Rather, each owner reports his or her share of our income or loss on his or her individual tax return. The aggregate difference in the basis of our net assets for financial and tax reporting purposes cannot be readily determined, as we do not have access to information regarding each partner’s basis in the Partnership. We have certain taxable corporate subsidiaries in the United States and Canada, and our operations in Texas are subject to a state franchise tax that is calculated based on revenues net of cost of sales. We have a deferred tax liability of $51.3 million at December 31, 2019 as a result of acquiring corporations in connection with certain of our acquisitions, which is included within other noncurrent liabilities in our unaudited condensed consolidated balance sheet. The deferred tax liability at December 31, 2019 increased by $38.7 million from September 30, 2019 due to our acquisition of Hillstone (as defined herein), which included entities taxed as corporations for United States federal income tax purposes. The deferred tax liability is the tax effected cumulative temporary difference between the GAAP basis and tax basis of the acquired assets within the corporation. For GAAP purposes, certain of the acquired assets will be depreciated and amortized over time which will lower the GAAP basis. The deferred tax benefit recorded during the nine months ended December 31, 2019 was $1.4 million with an effective tax rate of 25.1% . We evaluate uncertain tax positions for recognition and measurement in the unaudited condensed consolidated financial statements. To recognize a tax position, we determine whether it is more likely than not that the tax position will be sustained upon examination, including resolution of any related appeals or litigation, based on the technical merits of the position. A tax position that meets the more likely than not threshold is measured to determine the amount of benefit to be recognized in the unaudited condensed consolidated financial statements. We had no material uncertain tax positions that required recognition in our unaudited condensed consolidated financial statements at December 31, 2019 or March 31, 2019 . Inventories Our inventories are valued at the lower of cost or net realizable value, with cost determined using either the weighted-average cost or the first in, first out (FIFO) methods, including the cost of transportation and storage, and with net realizable value defined as the estimated selling price in the ordinary course of business, less reasonably predictable costs of completion, disposal, and transportation. In performing this analysis, we consider fixed-price forward commitments. Inventories consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Crude oil $ 48,901 $ 51,359 Natural gas liquids: Propane 68,144 33,478 Butane 37,134 15,294 Other 11,506 7,482 Refined products and renewables: Diesel 10,474 9,186 Ethanol 1,668 14,650 Biodiesel 5,911 4,679 Total $ 183,738 $ 136,128 Amounts as of December 31, 2019 and March 31, 2019 in the table above do not include inventory related to Mid-Con and Gas Blending, as these amounts have been classified as current assets held for sale within our December 31, 2019 and March 31, 2019 unaudited condensed consolidated balance sheets (see Note 16 ). Amounts as of March 31, 2019 in the table above do not include inventory related to TPSL, as these amounts have been classified as current assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ). Investments in Unconsolidated Entities Investments we do not control, but can exercise significant influence over, are accounted for using the equity method of accounting. Investments in partnerships and limited liability companies, unless our investment is considered to be minor, and investments in unincorporated joint ventures are also accounted for using the equity method of accounting. Under the equity method, we do not report the individual assets and liabilities of these entities on our unaudited condensed consolidated balance sheets; instead, our ownership interests are reported within investments in unconsolidated entities on our unaudited condensed consolidated balance sheets. Under the equity method, the investment is recorded at acquisition cost, increased by our proportionate share of any earnings and additional capital contributions and decreased by our proportionate share of any losses, distributions paid, and amortization of any excess investment. Excess investment is the amount by which our total investment exceeds our proportionate share of the net assets of the investee. Our investments in unconsolidated entities consist of the following at the dates indicated: Entity Segment Ownership Date Acquired December 31, 2019 March 31, 2019 (in thousands) Water services and land company (2) Water Solutions 50% November 2019 $ 15,624 $ — Water services and land company (3) Water Solutions 50% November 2019 2,067 — Water services and land company (4) Water Solutions 10% November 2019 3,247 — Aircraft company (5) Corporate and Other 50% June 2019 638 — Water services company (6) Water Solutions 50% August 2018 480 920 Natural gas liquids terminal company (7) Liquids 50% March 2019 180 207 Total $ 22,236 $ 1,127 (1) Ownership interest percentages are at December 31, 2019 . (2) This is an investment that we acquired as part of an acquisition in November 2019 (see Note 4), and represents certain membership interests related to specific land operations. (3) This is an investment that we acquired as part of an acquisition in November 2019 (see Note 4), and represents certain membership interests related to specific land operations. (4) This is an investment that we acquired as part of an acquisition in November 2019 (see Note 4), and represents certain membership interests related to specific water services operations. (5) This is an investment with a related party. See Note 13 for a further discussion. (6) This is an investment that we acquired as part of an acquisition in August 2018. (7) This is an investment that we acquired as part of an acquisition in March 2019. Other Noncurrent Assets Other noncurrent assets consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Loan receivable (1) $ 9,060 $ 19,474 Line fill (2) 33,437 33,437 Minimum shipping fees - pipeline commitments (3) 18,510 23,494 Other 22,937 37,452 Total $ 83,944 $ 113,857 (1) Represents the noncurrent portion of a loan receivable associated with our interest in the construction of a natural gas liquids loading/unloading facility (the “Facility”) that is utilized by a third party that filed for Chapter 11 bankruptcy during the three months ended September 30, 2019. As of December 31, 2019 , we are owed a total of $26.4 million under this loan receivable, of which approximately $20.2 million is recorded within prepaid expenses and other current assets in our unaudited condensed unconsolidated balance sheet. Our loan receivable is secured by a lien on the Facility. We have filed our Proof of Claim within the bankruptcy case and although the third party may have the option to reject the agreement governing the receivable in the context of the bankruptcy proceeding, subject to bankruptcy court approval, the third party’s current intention appears to be to transfer the Facility to a third party purchaser in satisfaction of the full amount owed under the receivable. It is also possible that the third party may deviate from this course and propose a different plan. Accordingly, we will continue to monitor the bankruptcy case through its conclusion. The remaining amount represents the noncurrent portion of a loan receivable with Victory Propane. (2) Represents minimum volumes of product we are required to leave on certain third-party owned pipelines under long-term shipment commitments. At December 31, 2019 , line fill consisted of 335,069 barrels of crude oil and 262,000 barrels of propane. At March 31, 2019 , line fill consisted of 335,069 barrels of crude oil and 262,000 barrels of propane. Line fill held in pipelines we own is included within property, plant and equipment (see Note 5). (3) Represents the noncurrent portion of minimum shipping fees paid in excess of volumes shipped, or deficiency credits, for one contract with a crude oil pipeline operator. This amount can be recovered when volumes shipped exceed the minimum monthly volume commitment (see Note 9). As of March 31, 2019, the deficiency credit was $23.5 million . In October 2019, we extended our commitment with this crude oil pipeline operator and this extension provides us with an additional 5.5 years in which to use the deficiency credit (see Note 9). As of December 31, 2019 , the deficiency credit was $22.8 million , of which $4.3 million is recorded within prepaid expenses and other current assets in our unaudited condensed unconsolidated balance sheet. Amounts as of March 31, 2019 in the table above do not include other noncurrent assets related to TPSL, as these amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ). Accrued Expenses and Other Payables Accrued expenses and other payables consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Accrued compensation and benefits $ 17,940 $ 19,312 Excise and other tax liabilities 19,300 10,481 Derivative liabilities 5,353 4,960 Accrued interest 25,838 24,882 Product exchange liabilities 7,382 5,945 Gavilon legal matter settlement (Note 9) — 12,500 Contingent consideration liability (Note 4) 200,000 — TPSL working capital settlement (Note 17) 41,508 — Other 35,527 29,679 Total $ 352,848 $ 107,759 Amounts as of December 31, 2019 and March 31, 2019 in the table above do not include derivative liabilities related to Mid-Con and Gas Blending, as these amounts have been classified as current liabilities held for sale within our December 31, 2019 and March 31, 2019 unaudited condensed consolidated balance sheets (see Note 16 ). Amounts as of March 31, 2019 in the table above do not include accrued expenses and other payables related to TPSL, as these amounts have been classified as current liabilities held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ). Noncontrolling Interests Noncontrolling interests represent the portion of certain consolidated subsidiaries that are owned by third parties. Amounts are adjusted by the noncontrolling interest holder’s proportionate share of the subsidiaries’ earnings or losses each period and any distributions that are paid. Noncontrolling interests are reported as a component of equity. Acquisitions To determine if a transaction should be accounted for as a business combination or an acquisition of assets, we first calculate the relative fair values of the assets acquired. If substantially all of the relative fair value is concentrated in a single asset or group of similar assets, or if not but the transaction does not include a significant process (does not meet the definition of a business), we record the transaction as an acquisition of assets. For acquisitions of assets, the purchase price is allocated based on the relative fair values. For an acquisition of assets, goodwill is not recorded. All other transactions are recorded as business combinations. We record the assets acquired and liabilities assumed in a business combination at their acquisition date fair values. For a business combination, the excess of the purchase price over the net fair value of acquired assets and assumed liabilities is recorded as goodwill, which is not amortized but instead is evaluated for impairment at least annually. Pursuant to GAAP, an entity is allowed a reasonable period of time (not to exceed one year) to obtain the information necessary to identify and measure the fair value of the assets acquired and liabilities assumed in a business combination. As discussed in Note 4 , certain of our acquisitions are still within this measurement period, and as a result, the acquisition date fair values we have recorded for the assets acquired and liabilities assumed are subject to change. Also, as discussed in Note 4 , we made certain adjustments during the nine months ended December 31, 2019 to our estimates of the acquisition date fair values of the assets acquired and liabilities assumed in business combinations that occurred during the fiscal year ended March 31, 2019. Reclassifications We have reclassified certain prior period financial statement information to be consistent with the classification methods used in the current fiscal year. These reclassifications did not impact previously reported amounts of assets, liabilities, equity, net income, or cash flows. Recent Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, “Financial Instruments-Credit Losses.” The ASU requires a financial asset (or a group of financial assets) measured at amortized cost to be presented at the net amount expected to be collected, which would include accounts receivable. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. The ASU is effective for the Partnership beginning April 1, 2020, and requires a modified retrospective method of adoption, although early adoption is permitted. We are currently in the process of assessing the impact of this ASU on our consolidated financial statements. In February 2016, the FASB issued ASC 842, “Leases.” This ASU replaced previous lease accounting guidance in GAAP. The new guidance requires the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases. It also retains a distinction between finance leases and operating leases. For lessors, the new accounting model remains largely the same, although some changes have been made to align it with the new lessee model and the ASC 606 revenue recognition guidance. We adopted ASC 842 effective April 1, 2019 using the modified retrospective method, with no adjustment to comparative period information, which remains reported under ASC 840, and no cumulative effect adjustment to equity. See Note 15 for a further discussion of the impact of adoption of ASC 842 to our unaudited condensed consolidated financial statements.

Income (Loss) Per Common Unit

Income (Loss) Per Common Unit	9 Months Ended
	Dec. 31, 2019
Earnings Per Unit [Abstract]
Income (Loss) Per Common Unit	Income (Loss) Per Common Unit The following table presents our calculation of basic and diluted weighted average common units outstanding for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Weighted average common units outstanding during the period: Common units - Basic 128,201,369 123,892,680 127,026,510 122,609,625 Effect of Dilutive Securities: Warrants — 1,456,947 — — Service awards 1,157,221 610,124 — — Common units - Diluted 129,358,590 125,959,751 127,026,510 122,609,625 For the three months ended December 31, 2019 , the warrants were antidilutive. For the three months ended December 31, 2018 , the Class A Preferred Units (as defined herein) were considered antidilutive. For the nine months ended December 31, 2019 and 2018 , the warrants, Service Awards (as defined herein) and Class A Preferred Units were considered antidilutive. Our income (loss) per common unit is as follows for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands, except unit and per unit amounts) Income (loss) from continuing operations $ 49,106 $ 97,199 $ 42,464 $ (137,323 ) Less: Continuing operations loss attributable to noncontrolling interests 166 307 563 1,170 Net income (loss) from continuing operations attributable to NGL Energy Partners LP 49,272 97,506 43,027 (136,153 ) Less: Distributions to preferred unitholders (1) (20,312 ) (29,748 ) (166,835 ) (73,882 ) Less: Continuing operations net (income) loss allocated to general partner (2) (65 ) (102 ) 16 107 Net income (loss) from continuing operations allocated to common unitholders $ 28,895 $ 67,656 $ (123,792 ) $ (209,928 ) (Loss) income from discontinued operations, net of tax $ (6,115 ) $ 13,329 $ (192,800 ) $ 433,501 Less: Discontinued operations loss attributable to redeemable noncontrolling interests — — — 446 Less: Discontinued operations loss (income) allocated to general partner (2) 6 (13 ) 193 (434 ) Net (loss) income from discontinued operations allocated to common unitholders $ (6,109 ) $ 13,316 $ (192,607 ) $ 433,513 Net income (loss) allocated to common unitholders $ 22,786 $ 80,972 $ (316,399 ) $ 223,585 Basic income (loss) per common unit Income (loss) from continuing operations $ 0.23 $ 0.54 $ (0.97 ) $ (1.71 ) (Loss) income from discontinued operations, net of tax $ (0.05 ) $ 0.11 $ (1.52 ) $ 3.53 Net income (loss) $ 0.18 $ 0.65 $ (2.49 ) $ 1.82 Diluted income (loss) per common unit Income (loss) from continuing operations $ 0.22 $ 0.53 $ (0.97 ) $ (1.71 ) (Loss) income from discontinued operations, net of tax $ (0.05 ) $ 0.11 $ (1.52 ) $ 3.53 Net income (loss) $ 0.18 $ 0.64 $ (2.49 ) $ 1.82 Basic weighted average common units outstanding 128,201,369 123,892,680 127,026,510 122,609,625 Diluted weighted average common units outstanding 129,358,590 125,959,751 127,026,510 122,609,625 (1) This amount includes distributions to preferred unitholders, the final accretion for the beneficial conversion of the Class A Preferred Units and the excess of the Class A Preferred Units repurchase price over the carrying value of the units, as discussed further in Note 10 . (2) Net (income) loss allocated to the general partner includes distributions to which it is entitled as the holder of incentive distribution rights.

Acquisitions

Acquisitions	9 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Acquisitions	Acquisitions The following summarizes our acquisitions during the nine months ended December 31, 2019 : Business Combinations Hillstone Acquisition On October 31, 2019, we acquired all of the equity interests of Hillstone Environmental Partners, LLC (“Hillstone”) for $642.5 million , subject to certain adjustments. Hillstone provides water pipeline and disposal infrastructure solutions to producers with a core operational focus in the state line area of southern Eddy and Lea Counties, New Mexico and northern Loving County, Texas in the Delaware Basin. Hillstone has a fully interconnected produced water pipeline transportation and disposal system, which consists of 19 saltwater disposal wells, representing approximately 580,000 barrels per day of permitted disposal capacity, and a newly-built network of produced water pipelines with approximately 680,000 barrels per day of transportation capacity. Hillstone also has an additional 22 permits to develop another 660,000 barrels per day of disposal capacity. The acquired assets also include minimum volume commitments and long-term dedications covering over 110,000 contracted acres, including a 20-year acreage dedication, a 10-year acreage dedication, including first call rights, with a leading independent exploration and production company, and multiple contracts with one of the largest crude oil and natural gas exploration and production companies in the United States. As part of this acquisition, we recorded a customer relationship intangible asset. We estimated the value of this intangible asset using the income approach, which uses valuation techniques to convert future amounts (for example, cash flows or earnings) to a single present amount (discounted). The measurement is based on the value indicated by current market expectations about those future amounts. The agreement for this acquisition contemplates post-closing payments for certain working capital items. We are accounting for this transaction as a business combination. The following table summarizes the preliminary estimates of the fair values as of December 31, 2019 for the assets acquired and liabilities assumed (in thousands): Current assets $ 35,171 Property, plant and equipment 144,803 Goodwill 113,939 Intangible assets 400,000 Investments in unconsolidated entities 335 Operating lease right-of-use assets 3,090 Other noncurrent assets 811 Assets held for sale 5,100 Current liabilities (16,234 ) Operating lease obligations (3,090 ) Other noncurrent liabilities (1,448 ) Deferred tax liability (39,178 ) Liabilities held for sale (786 ) Fair value of net assets acquired $ 642,513 As of December 31, 2019 , the allocation of the purchase price is considered preliminary as we are continuing to gather additional information to (i) finalize the fair values of the property, plant and equipment and intangible assets and (ii) finalize the calculation of the operating lease liabilities and right-of-use assets, asset retirement obligations and the deferred tax liability. Goodwill represents the excess of the consideration paid for the acquired business over the fair value of the individual assets acquired, net of liabilities assumed. Goodwill represents a premium paid to expand the number of our disposal sites in an oilfield production basin currently serviced by us, thereby enhancing our competitive position as a provider of disposal services in this oilfield production basin. We expect that all of the goodwill will be deductible for federal income tax purposes. The operations of these water solutions facilities have been included in our unaudited condensed consolidated statement of operations since their acquisition date. Our unaudited condensed consolidated statement of operations for the nine months ended December 31, 2019 includes revenues of $13.2 million and an operating loss of $4.4 million that were generated by the operations of these water solutions facilities. We incurred $12.0 million of transaction costs related to this acquisition during the nine months ended December 31, 2019 , which is recorded within general and administrative expenses in our unaudited condensed consolidated statement of operations. In addition, on December 31, 2019, the Partnership sold its interest in the unconsolidated entity acquired as part of this transaction. Mesquite Acquisition On July 2, 2019, we acquired all of the assets of Mesquite Disposals Unlimited, LLC (“Mesquite”) (including 34 saltwater disposal wells). The purchase price was comprised of (i) $592.5 million in cash, (ii) the issuance of $102.8 million of our Class B Preferred Units (as defined herein) and (iii) additional cash payments of $200.0 million to be paid in two deferred installments contingent on the average daily volume of produced water processed utilizing the assets being acquired. Mesquite SWD Inc. will remain the operator of the Mesquite assets led by Mesquite’s current management team. The assets consist of a fully interconnected produced water pipeline transportation and disposal system in Eddy and Lea Counties, New Mexico, and Loving County, Texas. To determine our preliminary purchase price of $885.3 million , we included the fair value of the deferred payments at the date of acquisition of $190.0 million , to the sum of the cash paid and the value of the preferred units issued. During the three months ended December 31, 2019, the volume of produced water processed utilizing the assets acquired surpassed both thresholds, thus triggering the payment of the full $200.0 million . The agreement was amended by both parties for the payment to be made in six installments over the next six months. The first installment payment of $55.0 million was made on January 10, 2020. As part of this acquisition, we recorded customer commitment, customer relationship and right-of way intangible assets. We estimated the value of these intangible assets using the income approach, which uses valuation techniques to convert future amounts (for example, cash flows or earnings) to a single present amount (discounted). The measurement is based on the value indicated by current market expectations about those future amounts. The agreement for this acquisition contemplates post-closing payments for certain working capital items. We are accounting for this transaction as a business combination. The following table summarizes the preliminary estimates of the fair values as of December 31, 2019 for the assets acquired and liabilities assumed (in thousands): Property, plant and equipment $ 370,923 Goodwill 77,549 Intangible assets 458,678 Other noncurrent liabilities (4,769 ) Noncontrolling interests (17,124 ) Fair value of net assets acquired $ 885,257 As of December 31, 2019 , the allocation of the purchase price is considered preliminary as we are continuing to gather additional information to (i) finalize the fair values of the property, plant and equipment and intangible assets and (ii) finalize the calculation of asset retirement obligations. Goodwill represents the excess of the consideration paid for the acquired business over the fair value of the individual assets acquired, net of liabilities assumed. Goodwill represents a premium paid to expand the number of our disposal sites in an oilfield production basin currently serviced by us, thereby enhancing our competitive position as a provider of disposal services in this oilfield production basin. We expect that all of the goodwill will be deductible for federal income tax purposes. The operations of these water solutions facilities have been included in our unaudited condensed consolidated statement of operations since their acquisition date. Our unaudited condensed consolidated statement of operations for the nine months ended December 31, 2019 includes revenues of $57.6 million and operating income of $3.4 million that were generated by the operations of these water solutions facilities. We incurred $6.0 million of transaction costs related to this acquisition during the nine months ended December 31, 2019 , which is recorded within general and administrative expenses in our unaudited condensed consolidated statement of operations. Saltwater Water Solutions Facilities During the nine months ended December 31, 2019 , we acquired one saltwater disposal facility (including three saltwater disposal wells) for total consideration of approximately $53.0 million . As part of this acquisition, we recorded customer relationship, favorable contract, non-compete agreement and right-of way intangible assets. We estimated the value of these intangible assets using the income approach, which uses valuation techniques to convert future amounts (for example, cash flows or earnings) to a single present amount (discounted). The measurement is based on the value indicated by current market expectations about those future amounts. The agreement for this acquisition contemplates post-closing payments for certain working capital items. We are accounting for this transaction as a business combination. The following table summarizes the preliminary estimates of the fair values as of December 31, 2019 for the assets acquired and liabilities assumed (in thousands): Property, plant and equipment $ 24,324 Goodwill 2,413 Intangible assets 26,688 Other noncurrent liabilities (425 ) Fair value of net assets acquired $ 53,000 As of December 31, 2019 , the allocation of the purchase price is considered preliminary as we are continuing to gather additional information to finalize the fair values of the property, plant and equipment and intangible assets. Goodwill represents the excess of the consideration paid for the acquired business over the fair value of the individual assets acquired, net of liabilities assumed. Goodwill represents a premium paid to expand the number of our disposal sites in an oilfield production basin currently serviced by us, thereby enhancing our competitive position as a provider of disposal services in this oilfield production basin. We expect that all of the goodwill will be deductible for federal income tax purposes. The operations of these water solutions facilities have been included in our unaudited condensed consolidated statement of operations since their acquisition date. Our unaudited condensed consolidated statement of operations for the nine months ended December 31, 2019 includes revenues of $4.8 million and operating income of $0.9 million that were generated by the operations of these water solutions facilities. We incurred less than $0.1 million of transaction costs related to this acquisition during the nine months ended December 31, 2019 , which is recorded within general and administrative expenses in our unaudited condensed consolidated statement of operations. Acquisitions of Assets On November 7, 2019, we acquired the exclusive rights to use certain land for produced and treated water operations from one entity, certain membership interests (see Note 2 ) in another entity and other assets. The membership interests are in an entity that owns real property and provides freshwater services. In addition, we entered into a joint development agreement with the seller and affiliates to build and operate produced, treated and blended water facilities. The total purchase price for this transaction was $56.6 million , of which $36.1 million was allocated to the produced and treated water rights (intangible asset), $20.3 million to the membership interests and $0.3 million to net other current and noncurrent assets. During the nine months ended December 31, 2019 , we also acquired land and two saltwater disposal wells for total consideration of $13.0 million , which we are accounting for as an acquisition of assets. The consideration paid for this transaction was allocated primarily to property, plant and equipment. The following summarizes the status of the preliminary purchase price allocation of acquisitions prior to April 1, 2019: Saltwater Water Solutions Facilities During the three months ended June 30, 2019, we completed the acquisition accounting for all saltwater disposal facilities and saltwater disposal wells acquired during the fiscal year ended March 31, 2019. Due to the receipt of additional information, we recorded a decrease of $2.3 million to intangible assets with the offset recorded to goodwill. There were no other adjustments to the fair value of assets acquired and liabilities assumed during the three months ended June 30, 2019. Freshwater Water Solutions Facilities During the three months ended June 30, 2019, we completed the acquisition accounting for four freshwater facilities (including 16 freshwater wells). There were no adjustments to the fair value of assets acquired and liabilities assumed during the three months ended June 30, 2019 for this acquisition. During the six months ended September 30, 2019, we completed the acquisition accounting for a separate freshwater acquisition. We paid $2.5 million in cash to the sellers during the six months ended September 30, 2019 to complete the settlement of the acquisition. The offset of the cash payment was recorded to goodwill. There were no other adjustments to the fair value of assets acquired and liabilities assumed during the six months ended September 30, 2019. Natural Gas Liquids Terminal Business During the six months ended September 30, 2019, we finalized the adjustments related to the working capital items received and recorded a decrease of $2.7 million to inventories, an increase of $0.3 million to other current assets, an increase of $0.1 million to property, plant and equipment, a decrease of $0.9 million to current liabilities and a decrease of $0.5 million to noncurrent liabilities. Also, due to the receipt of additional information, we recorded an increase of $29.0 million to property, plant and equipment, a decrease of $26.9 million to intangible assets and a decrease of $2.1 million to goodwill. The purchase price allocation is still preliminary as we are continuing to finalize the fair value of the property, plant and equipment.

Property, Plant and Equipment

Property, Plant and Equipment	9 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	Property, Plant and Equipment Our property, plant and equipment consists of the following at the dates indicated: Description Estimated December 31, 2019 March 31, 2019 (in years) (in thousands) Natural gas liquids terminal and storage assets 2 - 30 $ 310,091 $ 280,106 Pipeline and related facilities 30 - 40 244,021 243,799 Vehicles and railcars 3 - 25 122,219 124,948 Water treatment facilities and equipment 3 - 30 1,277,654 704,666 Crude oil tanks and related equipment 2 - 30 228,012 225,476 Barges and towboats 5 - 30 123,847 103,735 Information technology equipment 3 - 7 34,331 31,831 Buildings and leasehold improvements 3 - 40 147,964 143,711 Land 87,593 62,379 Tank bottoms and line fill (1) 20,339 20,071 Other 3 - 20 15,069 14,870 Construction in progress 597,703 290,805 3,208,843 2,246,397 Accumulated depreciation (504,731 ) (417,457 ) Net property, plant and equipment $ 2,704,112 $ 1,828,940 (1) Tank bottoms, which are product volumes required for the operation of storage tanks, are recorded at historical cost. We recover tank bottoms when the storage tanks are removed from service. Line fill, which represents our portion of the product volume required for the operation of the proportionate share of a pipeline we own, is recorded at historical cost. Amounts as of March 31, 2019 in the table above do not include property, plant and equipment and accumulated depreciation related to TPSL, as these amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ). The following table summarizes depreciation expense and capitalized interest expense for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Depreciation expense $ 37,687 $ 26,263 $ 94,477 $ 76,671 Capitalized interest expense $ 439 $ 160 $ 439 $ 482 Amounts in the table above do not include depreciation expense and capitalized interest related to TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ). We record (gains) losses from the sales of property, plant and equipment and any write-downs in value due to impairment within (gain) loss on disposal or impairment of assets, net in our unaudited condensed consolidated statements of operations. The following table summarizes (gains) losses on the disposal or impairment of property, plant and equipment by segment for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Crude Oil Logistics $ 198 $ (75 ) $ (592 ) $ 1,251 Water Solutions 4,476 (443 ) 8,075 2,762 Liquids (26 ) — (33 ) 994 Total $ 4,648 $ (518 ) $ 7,450 $ 5,007

Goodwill

Goodwill	9 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The following table summarizes changes in goodwill by segment during the nine months ended December 31, 2019 : Crude Oil Water Liquids Refined Total (in thousands) Balances at March 31, 2019 $ 579,846 $ 410,139 $ 103,421 $ 17,050 $ 1,110,456 Revisions to acquisition accounting (Note 4) — 4,755 (2,057 ) — 2,698 Acquisitions (Note 4) — 193,901 — — 193,901 Balances at December 31, 2019 $ 579,846 $ 608,795 $ 101,364 $ 17,050 $ 1,307,055 Amounts in the table above do not include goodwill that was allocated to Gas Blending, as the amount has been classified as current assets held for sale in our December 31, 2019 unaudited condensed consolidated balance sheet. Amounts in the table above do not include goodwill that was allocated to TPSL and Gas Blending, as the amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 1 and Note 16 ).

Intangible Assets

Intangible Assets	9 Months Ended
	Dec. 31, 2019
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible Assets	Intangible Assets Our intangible assets consist of the following at the dates indicated: December 31, 2019 March 31, 2019 Description Amortizable Lives Gross Carrying Accumulated Net Gross Carrying Accumulated Net (in years) (in thousands) Amortizable: Customer relationships 3 - 30 $ 1,384,922 $ (428,971 ) $ 955,951 $ 742,832 $ (369,983 ) $ 372,849 Customer commitments 10 - 25 502,000 (102,007 ) 399,993 310,000 (74,917 ) 235,083 Pipeline capacity rights 30 7,800 (1,582 ) 6,218 7,799 (1,387 ) 6,412 Rights-of-way and easements 1 - 45 86,988 (6,185 ) 80,803 73,409 (4,509 ) 68,900 Water rights 13 - 30 100,936 (6,709 ) 94,227 64,868 (3,018 ) 61,850 Executory contracts and other agreements 5 - 30 55,029 (19,412 ) 35,617 47,230 (17,212 ) 30,018 Non-compete agreements 2 - 24 19,823 (5,259 ) 14,564 12,723 (2,570 ) 10,153 Debt issuance costs (1) 3 - 5 43,830 (33,448 ) 10,382 42,345 (29,521 ) 12,824 Total amortizable 2,201,328 (603,573 ) 1,597,755 1,301,206 (503,117 ) 798,089 Non-amortizable: Trade names 2,800 — 2,800 2,800 — 2,800 Total $ 2,204,128 $ (603,573 ) $ 1,600,555 $ 1,304,006 $ (503,117 ) $ 800,889 (1) Includes debt issuance costs related to the Revolving Credit Facility (as defined herein). Debt issuance costs related to fixed-rate notes and Term Credit Agreement (as defined herein) are reported as a reduction of the carrying amount of long-term debt. Amounts as of March 31, 2019 in the table above do not include intangible assets and accumulated amortization of TPSL, as these amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ). The weighted-average remaining amortization period for intangible assets is approximately 17.4 years . Amortization expense is as follows for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, Recorded In 2019 2018 2019 2018 (in thousands) Depreciation and amortization $ 36,039 $ 27,018 $ 96,116 $ 81,100 Cost of sales 86 101 262 385 Interest expense 1,371 1,250 3,927 3,668 Operating expenses 110 — 372 — Total $ 37,606 $ 28,369 $ 100,677 $ 85,153 Amounts in the table above do not include amortization expense related to TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations within our unaudited condensed consolidated statements of operations (see Note 16 ). Expected amortization of our intangible assets is as follows (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 39,679 2021 146,692 2022 133,534 2023 125,159 2024 118,961 Thereafter 1,033,730 Total $ 1,597,755

Long-Term Debt

Long-Term Debt	9 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Our long-term debt consists of the following at the dates indicated: December 31, 2019 March 31, 2019 Face Unamortized Book Face Unamortized Book (in thousands) Revolving credit facility: Expansion capital borrowings $ 945,000 $ — $ 945,000 $ 275,000 $ — $ 275,000 Working capital borrowings 447,000 — 447,000 896,000 — 896,000 Senior unsecured notes: 7.500% Notes due 2023 ("2023 Notes") 607,323 (5,782 ) 601,541 607,323 (6,916 ) 600,407 6.125% Notes due 2025 ("2025 Notes") 389,135 (4,451 ) 384,684 389,135 (5,092 ) 384,043 7.500% Notes due 2026 ("2026 Notes") 450,000 (7,198 ) 442,802 — — — Term credit agreement 250,000 (2,832 ) 247,168 — — — Other long-term debt 4,845 — 4,845 5,331 — 5,331 3,093,303 (20,263 ) 3,073,040 2,172,789 (12,008 ) 2,160,781 Less: Current maturities 4,835 — 4,835 648 — 648 Long-term debt $ 3,088,468 $ (20,263 ) $ 3,068,205 $ 2,172,141 $ (12,008 ) $ 2,160,133 (1) Debt issuance costs related to the Revolving Credit Facility are reported within intangible assets, rather than as a reduction of the carrying amount of long-term debt. Amortization expense for debt issuance costs related to long-term debt in the table above was $1.6 million and $0.9 million during the three months ended December 31, 2019 and 2018 , respectively, and $3.5 million and $3.4 million during the nine months ended December 31, 2019 and 2018 , respectively. Expected amortization of debt issuance costs is as follows (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 1,922 2021 3,942 2022 3,929 2023 3,929 2024 3,305 Thereafter 3,236 Total $ 20,263 Credit Agreement During the quarter, we utilized a portion of the accordion feature under our credit agreement (“Credit Agreement”) whereby two new lenders and one existing lender committed to provide an additional $150.0 million of commitments in total. The Credit Agreement provides up to $1.915 billion in aggregate commitments and consists of a revolving credit facility to fund working capital needs, which had a capacity of $641.5 million for cash borrowings and letters of credit (the “Working Capital Facility”), and a revolving credit facility to fund acquisitions and expansion projects, which had a capacity of $1.273 billion (the “Expansion Capital Facility,” and together with the Working Capital Facility, the “Revolving Credit Facility”) at December 31, 2019 . We had letters of credit of $117.2 million on the Working Capital Facility at December 31, 2019 . The capacity under the Working Capital Facility may be limited by a “borrowing base” (as defined in the Credit Agreement) which is calculated based on the value of certain working capital items at any point in time. On October 30, 2019, we amended the Credit Agreement to, among other things, adjust the allocation of the commitments of the lenders to make revolving loans thereunder and, effective with the fiscal quarter ending December 31, 2019, amend the covenant package to include the senior secured leverage ratio, interest coverage ratio and total leverage indebtedness ratio financial covenants (each as defined in the Credit Agreement). The new debt covenant levels are presented in the table below. At December 31, 2019 , the borrowings under the Credit Agreement had a weighted average interest rate of 4.07% , calculated as the weighted average LIBOR rate of 1.76% plus a margin of 2.25% for LIBOR borrowings and the prime rate of 4.75% plus a margin of 1.25% on alternate base rate borrowings. At December 31, 2019 , the interest rate in effect on letters of credit was 2.25% . Commitment fees are charged at a rate ranging from 0.375% to 0.50% on any unused capacity. The following table summarizes the debt covenant levels specified in the Credit Agreement (as amended): Senior Secured Interest Total Leverage Period Beginning Leverage Ratio (1) Coverage Ratio (2) Indebtedness Ratio (1) December 31, 2019 3.50 2.50 5.75 June 30, 2020 and thereafter 3.50 2.50 5.50 (1) Represents the maximum ratio for the period presented. (2) Represents the minimum ratio for the period presented. At December 31, 2019 , our senior secured leverage ratio was approximately 1.83 to 1 , our interest coverage ratio was approximately 3.89 to 1 , and our total leverage indebtedness ratio was approximately 5.00 to 1. We were in compliance with the covenants under the Credit Agreement at December 31, 2019 . Senior Unsecured Notes On April 9, 2019, we issued $450.0 million of 7.50% Senior Unsecured Notes Due 2026 (the “2026 Notes”) in a private placement. The 2026 Notes bear interest, which is payable on April 15 and October 15 of each year, beginning on October 15, 2019 at 7.50% per annum. We received net proceeds of $442.1 million , after the initial purchasers’ discount of $6.8 million and offering costs of $1.1 million . The 2026 Notes mature on April 15, 2026. We filed a registration statement for the 2026 Notes with the SEC which became effective on January 22, 2020. Our exchange offer launched on January 23, 2020 and is set to expire on February 21, 2020, unless we decide to extend it. At December 31, 2019 , we were in compliance with the covenants under the indentures for all of the Senior Unsecured Notes . Term Credit Agreement On July 2, 2019 (the “Closing Date”), we entered into a term credit agreement (the “Term Credit Agreement”) with Toronto Dominion (Texas) LLC for a $250.0 million term loan facility. Toronto Dominion (Texas) LLC and certain of its affiliates are also lenders under our Credit Agreement. Proceeds from the term loan facility were used to fund a portion of the purchase price for the Mesquite (as defined herein) acquisition (see Note 4 ). The commitments under the Term Credit Agreement expire on July 2, 2024. We are subject to prepayments of principal if we enter into certain transactions to sell assets, issue equity or obtain new borrowings. The obligations under the Term Credit Agreement are guaranteed by the Partnership and certain of the Borrower’s wholly owned subsidiaries, and are secured by substantially all of the assets of the Borrower, the Partnership and the other subsidiary guarantors subject to certain customary exclusions. All borrowings under the Term Credit Agreement bear interest, at either (a) an alternate base rate plus (i) during the first three-month period after the Closing Date, margin equal to the applicable margin for alternate base rate loans calculated under our existing revolving credit facility, (ii) 2.00% per annum for the second three-month period after the Closing Date, (iii) 2.25% per annum for the third three-month period after the Closing Date, (iv) 2.50% per annum for the fourth three-month period after the Closing Date, and (v) thereafter, the rate per year such that the alternate base rate equals a rate of interest agreed to between us and the administrative agent, or (b) an adjusted LIBOR rate plus (i) during the first three-month period after the Closing Date, margin equal to the applicable margin for LIBOR rate loans calculated under our existing revolving credit facility, (ii) 3.00% per annum for the second three-month period after the Closing Date, (iii) 3.25% per annum for the third three-month period after the Closing Date, (iv) 3.50% per annum for the fourth three-month period after the Closing Date, and (v) thereafter, such rate per annum such that the adjusted LIBOR rate equals a rate of interest agreed to between us and the administrative agent. At December 31, 2019 , the borrowings under the Term Credit Agreement had an interest rate of 4.74% calculated as the LIBOR rate of 1.74% plus a margin of 3.00% . The Term Credit Agreement contains various customary representations, warranties and covenants by the Partnership and its subsidiaries, including, without limitation, (i) commencing September 30, 2019, the Partnership and the subsidiary guarantors will be subject to financial covenants limiting leverage, including senior leverage, secured leverage and total leverage, and requiring a minimum interest coverage, (ii) negative covenants limiting indebtedness, liens, equity distributions and fundamental changes involving the Partnership or its subsidiaries and (iii) affirmative covenants requiring, among other things, reporting of financial information and material events and covenants to maintain existence and pay taxes, in each case substantially consistent with the Partnership’s existing Revolving Credit Facility. On October 30, 2019, we amended the Term Credit Agreement, to, among other things, conform financial covenants in the Term Credit Agreement to the financial covenants set forth in the amended Credit Agreement, as described above. Sawtooth Credit Agreement On November 27, 2019, Sawtooth Caverns LLC (“Sawtooth”), a joint venture in which we own a 71.48% interest, entered into a credit agreement with Zions Bancorporation (doing business as “Amegy Bank”). The Sawtooth credit agreement has a capacity of $20.0 million . The commitments under the Sawtooth credit agreement expire on November 27, 2022. At December 31, 2019 , no amounts had been borrowed under the Sawtooth credit agreement. Commitment fees are charged at a rate of 0.50% on any unused capacity. Other Long-Term Debt We have other notes payable related to equipment financing. The interest rates on these instruments range from 4.13% to 7.10% per year and have an aggregate principal balance of $4.8 million at December 31, 2019 . Debt Maturity Schedule The scheduled maturities of our long-term debt are as follows at December 31, 2019 : Fiscal Year Ending March 31, Revolving Senior Unsecured Notes Term Credit Agreement Other Total (in thousands) 2020 (three months) $ — $ — $ — $ 161 $ 161 2021 — — — 4,684 4,684 2022 1,392,000 — — — 1,392,000 2023 — — — — — 2024 — 607,323 — — 607,323 Thereafter — 839,135 250,000 — 1,089,135 Total $ 1,392,000 $ 1,446,458 $ 250,000 $ 4,845 $ 3,093,303

Commitments and Contingencies

Commitments and Contingencies	9 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Legal Contingencies In August 2015, LCT Capital, LLC (“LCT”) filed a lawsuit against NGL Energy Holdings LLC (the “GP”) and the Partnership seeking payment for investment banking services relating to the purchase of TransMontaigne Inc. and related assets in July 2014. After pre-trial rulings, LCT was limited to pursuing claims of (i) quantum meruit (the value of the services rendered by LCT) and (ii) fraudulent misrepresentation against the defendants. Following a jury trial conducted in Delaware state court from July 23, 2018 through August 1, 2018, the jury returned a verdict consisting of an award of $4.0 million for quantum meruit and $29.0 million for fraudulent misrepresentation, subject to statutory interest. The GP and the Partnership contend that the jury verdict, at least in respect of fraudulent misrepresentation, is not supportable by either controlling law or the evidentiary record. On December 5, 2019, in response to the defendants’ post-trial motion, the Court issued an Order overturning the jury’s damages award and ordering the case to be set for a damages-only trial. Both parties filed applications with the trial court asking the trial court to certify the December 5th Order for interlocutory, immediate review by the Appellate Court. On December 23, 2019, the trial court issued an Order certifying for immediate review by the appellate court the issue of whether the types of damages awarded by the jury are legally supportable since it was also determined by the Court that there was no contract between the parties. On January 7, 2020, the Supreme Court of Delaware entered an Order expanding the issues to be reviewed on appeal to include the additional issues raised by the NGL parties’ application - namely, whether the December 5th Order correctly set aside the jury’s $4.0 million quantum meruit award, whether certain jury instructions were correct and whether the evidence presented at trial supported the claims asserted by LCT. The Supreme Court consolidated the appeal proceedings for judicial efficiency; and set a briefing cycle for the parties whereby the appeal-related materials will likely be fully submitted by both parties by the Summer of 2020. It is our position that the awards, even if they each stand, are not cumulative. Any allocation of the ultimate verdict award between the GP and the Partnership will be made by the Board of Directors once all information is available to it and after the post-trial and any appellate process has run its course and the verdict is final as a matter of law. Because the Partnership is a named defendant in the suit, and any judgment ultimately awarded would be joint and several with the GP, we have determined that it is probable that the Partnership could be liable for a portion of this judgment. At this time, we believe the amount that could be allocated to the Partnership would not be material as it is estimated to be less than $4.0 million . As of December 31, 2019 , we have accrued $2.5 million related to this matter. We are party to various other claims, legal actions, and complaints arising in the ordinary course of business. In the opinion of our management, the ultimate resolution of these claims, legal actions, and complaints, after consideration of amounts accrued, insurance coverage, and other arrangements, is not expected to have a material adverse effect on our consolidated financial position, results of operations or cash flows. However, the outcome of such matters is inherently uncertain, and estimates of our liabilities may change materially as circumstances develop. Environmental Matters At December 31, 2019 , we have an environmental liability, measured on an undiscounted basis, of $2.1 million , which is recorded within accrued expenses and other payables in our unaudited condensed consolidated balance sheet. Our operations are subject to extensive federal, state, and local environmental laws and regulations. Although we believe our operations are in substantial compliance with applicable environmental laws and regulations, risks of additional costs and liabilities are inherent in our business, and there can be no assurance that we will not incur significant costs. Moreover, it is possible that other developments, such as increasingly stringent environmental laws, regulations and enforcement policies thereunder, and claims for damages to property or persons resulting from the operations, could result in substantial costs. Accordingly, we have adopted policies, practices, and procedures in the areas of pollution control, product safety, occupational health, and the handling, storage, use, and disposal of hazardous materials designed to prevent material environmental or other damage, and to limit the financial liability that could result from such events. However, some risk of environmental or other damage is inherent in our business. In 2015, as previously disclosed, the U.S. Environmental Protection Agency (“EPA”) informed NGL Crude Logistics, LLC, formerly known as Gavilon, LLC (“Gavilon Energy”), of alleged violations that occurred in 2011 by Gavilon Energy of the Clean Air Act’s renewable fuel standards regulations (prior to its acquisition by us in December 2013). On October 4, 2016, the U.S. Department of Justice, acting at the request of the EPA, filed a civil complaint in the Northern District of Iowa against Gavilon Energy and one of its then suppliers, Western Dubuque Biodiesel LLC (“Western Dubuque”). Consistent with the earlier allegations by the EPA, the civil complaint related to transactions between Gavilon Energy and Western Dubuque and the generation of biodiesel renewable identification numbers (“RINs”) sold by Western Dubuque to Gavilon Energy in 2011. On December 19, 2016, we filed a motion to dismiss the complaint. On January 9, 2017, the EPA filed an amended complaint. The amended complaint seeks an order declaring Western Dubuque’s RINs invalid and requiring the defendants to retire an equivalent number of valid RINs and that the defendants pay statutory civil penalties. On January 23, 2017, we filed a motion to dismiss the amended complaint. On May 24, 2017, the court denied our motion to dismiss. Subsequently, the EPA filed a second amended complaint seeking an order declaring Western Dubuque’s RINs invalid, an order requiring us to retire an equivalent number of valid RINs and an award against us of statutory civil penalties. In May 2018, the parties completed briefing on cross-motions for summary judgment concerning liability issues in the case. On July 3, 2018, the Court denied our summary judgment motion and largely granted the plaintiff’s two summary judgment motions on liability. On July 19, 2018, Gavilon Energy reached an agreement in principle with the EPA regarding the terms of a settlement of the case, which was memorialized in a consent decree lodged to the Court on September 27, 2018. Such terms will result in Gavilon Energy paying cash of $25.0 million and retiring 36 million RINs, over a twelve-month period. The consent decree was approved by the Court on November 8, 2018. The consent decree resolves all matters between Gavilon Energy and the EPA in connection with the above-described complaint. During the fiscal year ended March 31, 2019 , we paid the EPA $12.5 million and retired all 36 million RINs. On December 18, 2019, we paid the final EPA settlement amount of $12.5 million . Asset Retirement Obligations We have contractual and regulatory obligations at certain facilities for which we have to perform remediation, dismantlement, or removal activities when the assets are retired. Our liability for asset retirement obligations is discounted to present value. To calculate the liability, we make estimates and assumptions about the retirement cost and the timing of retirement. Changes in our assumptions and estimates may occur as a result of the passage of time and the occurrence of future events. The following table summarizes changes in our asset retirement obligation, which is reported within other noncurrent liabilities in our unaudited condensed consolidated balance sheets (in thousands): Balance at March 31, 2019 $ 9,723 Liabilities incurred 1,125 Liabilities assumed in acquisitions 6,641 Liabilities settled (642 ) Accretion expense 734 Balance at December 31, 2019 $ 17,581 In addition to the obligations described above, we may be obligated to remove facilities or perform other remediation upon retirement of certain other assets. However, the fair value of the asset retirement obligation cannot currently be reasonably estimated because the settlement dates are indeterminable. We will record an asset retirement obligation for these assets in the periods in which settlement dates are reasonably determinable. Other Commitments We have noncancelable agreements for product storage, railcar spurs and real estate. The following table summarizes future minimum payments under these agreements at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 2,463 2021 6,453 2022 6,163 2023 4,502 2024 4,502 Thereafter 679 Total $ 24,762 Amounts in the table above do not include future minimum payments related to Mid-Con and Gas Blending as Mid-Con and Gas Blending have been classified as discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ). As part of the acquisition of Hillstone, discussed in Note 4 , we assumed an obligation to pay a quarterly subsidy payment in the event that specified volumetric thresholds are not exceeded at a third-party facility. This agreement expires on December 31, 2022. For the three months and nine months ended December 31, 2019, we recorded $0.4 million within operating expense in our unaudited condensed consolidated statement of operations. At December 31, 2019 , the range of potential payments we could be obligated to make pursuant to the subsidy agreement could be from $0.0 million to $9.7 million . Pipeline Capacity Agreements We have noncancelable agreements with crude oil pipeline operators, which guarantee us minimum monthly shipping capacity on the pipelines. As a result, we are required to pay the minimum shipping fees if actual shipments are less than our allotted capacity. Under certain agreements we have the ability to recover minimum shipping fees previously paid if our shipping volumes exceed the minimum monthly shipping commitment during each month remaining under the agreement, with some contracts containing provisions that allow us to continue shipping up to six months after the maturity date of the contract in order to recapture previously paid minimum shipping delinquency fees. We currently have assets recorded in prepaid expenses and other current assets and in other noncurrent assets in our unaudited condensed consolidated balance sheet for minimum shipping fees paid in both the current and previous periods that are expected to be recovered in future periods by exceeding the minimum monthly volumes (see Note 2 ). In September 2019, we extended our commitment with one pipeline operator through March 31, 2025 and in October 2019, we extended our commitment with another pipeline operator through October 31, 2024. Both extensions are backed by long-term purchase agreements. The extension with the second operator also allows us an additional 5.5 years to recapture the minimum shipping deficiency fees discussed above. The following table summarizes future minimum throughput payments under these agreements at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 11,006 2021 35,314 2022 35,314 2023 35,314 2024 35,410 Thereafter 30,897 Total $ 183,255 Construction Commitments At December 31, 2019 , we had construction commitments of $6.5 million . Sales and Purchase Contracts We have entered into product sales and purchase contracts for which we expect the parties to physically settle and deliver the inventory in future periods. At December 31, 2019 , we had the following commodity purchase commitments (in thousands): Crude Oil (1) Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Purchase Commitments: 2020 (three months) $ 49,160 824 $ 8,410 14,526 2021 — — 1,341 2,100 Total $ 49,160 824 $ 9,751 16,626 Index-Price Commodity Purchase Commitments: 2020 (three months) $ 684,946 11,730 $ 198,694 421,949 2021 544,878 10,617 1,321 3,662 2022 394,385 8,264 — — 2023 255,818 5,482 — — 2024 190,259 4,110 — — Total $ 2,070,286 40,203 $ 200,015 425,611 (1) Our crude oil index-price purchase commitments exceed our crude oil index-price sales commitments (presented below) due primarily to our long-term purchase commitments for crude oil that we purchase and ship on the Grand Mesa Pipeline. As these purchase commitments are deliver-or-pay contracts, whereby our counterparty is required to pay us for any volumes not delivered, we have not entered into corresponding long-term sales contracts for volumes we may not receive. At December 31, 2019 , we had the following commodity sale commitments (in thousands): Crude Oil Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Sale Commitments: 2020 (three months) $ 45,605 750 $ 99,333 123,418 2021 — — 13,746 20,034 2022 — — 157 203 Total $ 45,605 750 $ 113,236 143,655 Index-Price Commodity Sale Commitments: 2020 (three months) $ 817,155 13,294 $ 337,627 481,567 2021 23,367 390 28,365 46,659 Total $ 840,522 13,684 $ 365,992 528,226 We account for the contracts shown in the tables above using the normal purchase and normal sale election . Under this accounting policy election, we do not record the physical contracts at fair value at each balance sheet date; instead, we record the purchase or sale at the contracted value once the delivery occurs. Contracts in the tables above may have offsetting derivative contracts (described in Note 11 ) or inventory positions (described in Note 2 ). Certain other forward purchase and sale contracts do not qualify for the normal purchase and normal sale election. These contracts are recorded at fair value in our unaudited condensed consolidated balance sheet and are not included in the tables above. These contracts are included in the derivative disclosures in Note 11 , and represent $8.3 million of our prepaid expenses and other current assets and $5.3 million of our accrued expenses and other payables at December 31, 2019 .

Equity

Equity	9 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Equity	Equity Partnership Equity The Partnership’s equity consists of a 0.1% general partner interest and a 99.9% limited partner interest, which consists of common units. Our general partner has the right, but not the obligation, to contribute a proportionate amount of capital to us to maintain its 0.1% general partner interest. Our general partner is not required to guarantee or pay any of our debts and obligations. As of December 31, 2019 , we owned 8.69% of our general partner. General Partner Contributions In connection with the issuance of common units for the vesting of restricted units and the warrants that were exercised for common units during the nine months ended December 31, 2019 , we issued 3,844 notional units to our general partner for less than $0.1 million in order to maintain its 0.1% interest in us. Equity Issuances On August 24, 2016, we entered into an equity distribution agreement in connection with an at-the-market program (the “ATM Program”) pursuant to which we may issue and sell up to $200.0 million of common units. We did not sell any common units under the ATM Program during the nine months ended December 31, 2019 , and approximately $134.7 million remained available for sale under the ATM Program at December 31, 2019 . The registration statement applicable to this program expired in July 2019. Common Unit Repurchase Program On August 30, 2019, the board of directors of our general partner authorized a common unit repurchase plan, under which we may repurchase up to $150.0 million of our outstanding common units through September 30, 2021 from time to time in the open market or in other privately negotiated transactions. We did not repurchase any units under this plan during the three months ended December 31, 2019 . Our Distributions The following table summarizes distributions declared on our common units during the last four quarters: Date Declared Record Date Payment Date Amount Per Unit Amount Paid/Payable to Limited Partners Amount Paid/Payable to General Partner (in thousands) (in thousands) April 24, 2019 May 7, 2019 May 15, 2019 $ 0.3900 $ 49,127 $ 85 July 23, 2019 August 7, 2019 August 14, 2019 $ 0.3900 $ 49,217 $ 85 October 23, 2019 November 7, 2019 November 14, 2019 $ 0.3900 $ 49,936 $ 86 January 23, 2020 February 7, 2020 February 14, 2020 $ 0.3900 $ 50,056 $ 86 Class A Convertible Preferred Units In 2016, we received net proceeds of $235.0 million (net of offering costs of $5.0 million ) in connection with the issuance of 19,942,169 Class A Convertible Preferred Units (“Class A Preferred Units”) and 4,375,112 warrants. We allocated the net proceeds on a relative fair value basis to the Class A Preferred Units, which includes the value of a beneficial conversion feature, and warrants. There was no accretion for the beneficial conversion feature, recorded as a deemed distribution, for the three months ended December 31, 2019 as all Class A Preferred units have been redeemed, compared to $18.6 million for the three months ended December 31, 2018 and $36.5 million and $40.4 million during the nine months ended December 31, 2019 and 2018 , respectively. On April 5, 2019, we redeemed 7,468,978 of the Class A Preferred Units. The applicable Class A redemption price was $13.389 per Class A Preferred Unit, calculated at 111.25% of $12.035 (the Class A Preferred Unit price), plus accrued but unpaid and accumulated distributions of $0.338 . The amount per Class A Preferred Unit paid to each Class A preferred unitholder was $13.727 , for a total payment of $102.5 million . On April 5, 2019, all 1,458,371 outstanding warrants to purchase common units were exercised for proceeds of less than $0.1 million . On May 11, 2019, we redeemed the remaining 12,473,191 outstanding Class A Preferred Units. The applicable Class A redemption price was $13.2385 per Class A Preferred Unit, calculated at 110% of $12.035 , plus accrued but unpaid and accumulated distributions of $0.1437 . The amount per Class A Preferred Unit paid to each Class A preferred unitholder was $13.3822 , for a total payment of $166.9 million . In addition, we paid the Class A preferred unitholders the distribution declared on April 24, 2019 for the quarter ended March 31, 2019 of $4.0 million , or $0.3234 per unit, which was paid to the holders of the Class A Preferred Units on May 10, 2019 . Class B Preferred Units On June 13, 2017, we issued 8,400,000 of our 9.00% Class B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units (“Class B Preferred Units”) representing limited partner interests at a price of $25.00 per unit for net proceeds of $202.7 million (net of the underwriters’ discount of $6.6 million and offering costs of $0.7 million ). On July 2, 2019, we issued 4,185,642 Class B Preferred Units to fund a portion of the purchase price for the Mesquite acquisition (see Note 4 ). The current distribution rate for the Class B Preferred Units is 9.00% per year of the $25.00 liquidation preference per unit (equal to $2.25 per unit per year). The following table summarizes distributions declared on our Class B Preferred Units during the last four quarters: Amount Paid to Class B Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) March 15, 2019 April 1, 2019 April 15, 2019 $ 0.5625 $ 4,725 June 14, 2019 July 1, 2019 July 15, 2019 $ 0.5625 $ 4,725 September 16, 2019 October 1, 2019 October 15, 2019 $ 0.5625 $ 7,079 December 16, 2019 December 31, 2019 January 15, 2020 $ 0.5625 $ 7,079 The distribution amount paid on January 15, 2020 is included in accrued expenses and other payables in our unaudited condensed consolidated balance sheet at December 31, 2019 . Class C Preferred Units On April 2, 2019, we issued 1,800,000 of our 9.625% Class C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units (“Class C Preferred Units”) representing limited partner interests at a price of $25.00 per unit for net proceeds of $42.9 million (net of the underwriters’ discount of $1.4 million and offering costs of $0.7 million ). The current distribution rate for the Class C Preferred Units is 9.625% per year of the $25.00 liquidation preference per unit (equal to $2.41 per unit per year). The following table summarizes distributions declared on our Class C Preferred Units during the last three quarters: Amount Paid to Class C Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) June 14, 2019 July 1, 2019 July 15, 2019 $ 0.5949 $ 1,071 September 16, 2019 October 1, 2019 October 15, 2019 $ 0.6016 $ 1,083 December 16, 2019 December 31, 2019 January 15, 2020 $ 0.6016 $ 1,083 The distribution amount paid on January 15, 2020 is included in accrued expenses and other payables in our unaudited condensed consolidated balance sheet at December 31, 2019 . Class D Preferred Units On July 2, 2019, we completed a private placement of an aggregate of 400,000 preferred units (“Class D Preferred Units”) and warrants exercisable to purchase an aggregate of 17,000,000 common units for an aggregate purchase price of $400.0 million . The private placement resulted in aggregate net proceeds to us of approximately $385.4 million (net of a closing fee of $14.6 million payable to affiliates of the purchasers and certain estimated expenses and expense reimbursements). We allocated the net proceeds, on a relative fair value basis, to the Class D Preferred Units ( $343.7 million ) and warrants ($ 41.7 million ). Proceeds from this issuance of Class D Preferred Units were used to fund a portion of the purchase price for the Mesquite acquisition (see Note 4 ). On October 31, 2019, we completed a private placement of an aggregate of 200,000 Class D Preferred Units and warrants exercisable to purchase an aggregate of 8,500,000 common units for an aggregate purchase price of $200.0 million . The private placement resulted in aggregate net proceeds to us of approximately $194.7 million (net of a closing fee of $5.3 million payable to affiliates of the purchasers and certain estimated expenses and expense reimbursements). We allocated the net proceeds, on a relative fair value basis, to the Class D Preferred Units ( $183.6 million ) and warrants ( $11.1 million ). Proceeds from this issuance of Class D Preferred Units were used to fund a portion of the purchase price for the Hillstone acquisition (see Note 4 ). The holders of the Class D Preferred Units are entitled to receive a cumulative, quarterly distribution in arrears on each Class D Preferred Unit then held at an annual rate of (i) 9.00% per annum for all periods during which the Class D Preferred Units are outstanding beginning on the Closing Date and ending on the date and including the last day of the eleventh full quarter following the Closing Date, (ii) 10.00% per annum for all periods during which the Class D Preferred Units are outstanding beginning on and including the first day of the twelfth full quarter following the Closing Date and ending on the last day of the nineteenth full quarter following the Closing Date, and (iii) thereafter, 10.00% per annum or, at the purchasers’ election from time to time, a floating rate equal to the applicable three-month LIBOR, plus 7.00% per annum. The current distribution rate for the Class D Preferred Units is 9.00% per year per unit (equal to $90.00 per unit per year). The following table summarizes distributions declared on our Class D Preferred Units during the last two quarters: Amount Paid to Class D Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) October 23, 2019 November 7, 2019 November 14, 2019 $ 11.25 $ 4,450 January 23, 2020 February 7, 2020 February 14, 2020 $ 11.25 $ 6,075 The distributions for the nine months ended December 31, 2019 of $10.5 million represented 50% of the Class D Preferred Units distribution amount. In accordance with the terms of our Partnership Agreement, the value of each Class D Preferred Unit shall automatically increase by the non-cash accretion, which is approximately $10.5 million in the aggregate with respect to the distributions for the nine months ended December 31, 2019 . At any time after the Closing Date, the Partnership shall have the right to redeem all of the outstanding Class D Preferred Units at a price per Class D Preferred Unit equal to the sum of the then-unpaid accumulations with respect to such Class D Preferred Unit and the greater of either the applicable multiple on invested capital or the applicable redemption price based on an applicable internal rate of return, as more fully described in the Amended and Restated Partnership Agreement. At any time on or after the eighth anniversary of the Closing Date, each Class D Preferred Unitholder will have the right to require the Partnership to redeem on a date not prior to the 180th day after such anniversary all or a portion of the Class D Preferred Units then held by such preferred unitholder for the then-applicable redemption price, which may be paid in cash or, at the Partnership’s election, a combination of cash and a number of Common Units not to exceed one-half of the aggregate then-applicable redemption price, as more fully described in the Amended and Restated Partnership Agreement. Upon a Class D Change of Control (as defined in the Amended and Restated Partnership Agreement), each Class D Preferred Unitholder will have the right to require the Partnership to redeem the Class D Preferred Units then held by such Preferred Unitholder at a price per Class D Preferred Unit equal to the applicable redemption price. The Class D Preferred Units generally will not have any voting rights, except with respect to certain matters which require the vote of the Class D Preferred Units. The Class D Preferred Units generally do not have any voting rights, except that the Class D Preferred Units shall be entitled to vote as a separate class on any matter on which unitholders are entitled to vote that adversely affects the rights, powers, privileges or preferences of the Class D Preferred Units in relation to other classes of Partnership Interests (as defined in the Amended and Restated Partnership Agreement) or as required by law. The consent of a majority of the then-outstanding Class D Preferred Units, with one vote per Class D Preferred Unit, shall be required to approve any matter for which the preferred unitholders are entitled to vote as a separate class or the consent of the representative of the Class D Preferred Unitholders, as applicable. The warrants issued in the July 2, 2019 private placement are exercisable for, in the aggregate, 17,000,000 common units, of which 10,000,000 were issued with an exercise price of $17.45 per common unit (the “Premium Warrants”), and the remaining warrants to purchase 7,000,000 common units were issued with an exercise price of $14.54 per common unit (the “Par Warrants”). The warrants issued in the October 31, 2019 private placement are exercisable for, in the aggregate, 8,500,000 common units, of which, 5,000,000 were issued with an exercise price of $16.28 per common unit, and the remaining warrants to purchase 3,500,000 common units were issued with an exercise price of $13.56 per common unit. The warrants may be exercised from and after the first anniversary of the date of issuance. Unexercised warrants will expire on the tenth anniversary of the date of issuance. The warrants will not participate in cash distributions. Upon a change of control, all unvested warrants shall immediately vest and be exercisable in full. A change of control occurs when (a) the current general partner owners cease to own, directly or indirectly, at least 50% of the outstanding voting securities of the general partner, (b) the general partner withdraws or is removed by the limited partners, (c) the common units are no longer listed on a national exchange, or (d) the general partners and/or its affiliates become beneficial owner, directly or indirectly, of 80% or more of the outstanding common units or any transaction or event that occurs due to default on our credit agreement. Registration Rights Agreement In connection with the issuance of the Class D Preferred Units, we entered into a registration rights agreement (“Registration Rights Agreement”) with the purchasers of the Class D Preferred Units (“Purchasers”), pursuant to which we are required to prepare and file a registration statement (the “Registration Statement”) within 180 days of the Closing Date, to permit the public resale of (i) the Class D Preferred Units, (ii) the common units issued or issuable upon the exercise of the warrants, (iii) the common units that are issuable pursuant to the terms of the Class D Preferred Units in connection with a redemption of the Class D Preferred Units and (iv) any common units issued in lieu of cash as liquidated damages under the Registration Rights Agreement. The Partnership is also required to use its commercially reasonable efforts to cause the Registration Statement to become effective no later than 360 days after the Closing Date. The Registration Rights Agreement provides that if the Registration Statement is not declared effective on or prior to the Registration Statement Deadline, the Partnership will be liable to the Purchasers for liquidated damages in accordance with a formula, subject to the limitations set forth in the Registration Rights Agreement. Such liquidated damages would be payable in cash, or if payment in cash would breach any covenant or a cause a default under a credit facility or any other debt instrument filed by the Partnership as an exhibit to a periodic report filed with the SEC, then such liquidated damages would be payable in the form of newly issued common units. In addition, the Registration Rights Agreement grants the Purchasers piggyback registration rights. These registration rights are transferable to affiliates of the Purchasers and, in certain circumstances, to third parties. The Registration Statement was filed with the SEC on December 27, 2019. Board Rights Agreement In connection with the issuance of the Class D Preferred Units, we entered into a board rights agreement pursuant to which affiliates of the Purchasers will have the right to designate one director on the board of directors of our general partner, so long as the Purchasers and their respective affiliates, in the aggregate, own either at least (i) (A) 50% of the number of Class D Preferred Units issued on the Closing Date or (B) 50% of the aggregate liquidation preference of any class or series of Class D Parity Securities (as defined in the Amended and Restated Partnership Agreement), or (ii) warrants and/or common units that, in the aggregate, comprise 10% or more of the then-outstanding common units. Amended and Restated Partnership Agreement On October 31, 2019, NGL Energy Holdings LLC executed the Seventh Amended and Restated Agreement of Limited Partnership. The preferences, rights, powers and duties of holders of Class D Preferred Units are defined in the Amended and Restated Partnership Agreement. The Class D Preferred Units rank senior to the common units with respect to payment of distributions and distribution of assets upon liquidation, dissolution and winding up, and are in parity with the Class B Preferred Units and Class C Preferred Units. The Class D Preferred Units have no stated maturity, but we may redeem the Class D Preferred Units at any time after the Closing Date or upon the occurrence of a change in control. Equity-Based Incentive Compensation Our general partner has adopted a long-term incentive plan (“LTIP”), which allows for the issuance of equity-based compensation. Our general partner has granted certain restricted units to employees and directors, which vest in tranches, subject to the continued service of the recipients. The awards may also vest upon a change of control, at the discretion of the board of directors of our general partner. No distributions accrue to or are paid on the restricted units during the vesting period. The restricted units vest contingent on the continued service of the recipients through the vesting date (the “Service Awards”). The following table summarizes the Service Award activity during the nine months ended December 31, 2019 : Unvested Service Award units at March 31, 2019 2,308,400 Units granted 2,095,681 Units vested and issued (2,470,756 ) Units forfeited (152,425 ) Unvested Service Award units at December 31, 2019 1,780,900 In connection with the vesting of certain restricted units during the nine months ended December 31, 2019 , we canceled 88,718 of the newly-vested common units in satisfaction of $1.2 million of employee tax liability paid by us. Pursuant to the terms of the LTIP, these canceled units are available for future grants under the LTIP. The following table summarizes the scheduled vesting of our unvested Service Award units at December 31, 2019 : Fiscal Year Ending March 31, 2020 (three months) 443,725 2021 890,200 2022 446,975 Total 1,780,900 Service Awards are valued at the average of the high/low sales price as of the grant date less the present value of the expected distribution stream over the vesting period using a risk-free interest rate. We record the expense for each Service Award on a straight-line basis over the requisite period for the entire award (that is, over the requisite service period of the last separately vesting portion of the award), ensuring that the amount of compensation cost recognized at any date at least equals the portion of the grant-date value of the award that is vested at that date. During the three months ended December 31, 2019 and 2018 , we recorded compensation expense related to Service Award units of $1.8 million and $3.4 million , respectively. During the nine months ended December 31, 2019 and 2018 , we recorded compensation expense related to Service Award units of $6.6 million and $8.5 million , respectively. Of the restricted units granted and vested during the nine months ended December 31, 2019 , 1,886,131 units were granted for performance bonuses. The total amount of these bonus payments was $24.5 million , of which we had accrued $8.7 million as of March 31, 2019 . The following table summarizes the estimated future expense we expect to record on the unvested Service Award units at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 1,697 2021 4,640 2022 1,579 Total $ 7,916 As of December 31, 2019 , there are approximately 2.7 million common units remaining available for issuance under the LTIP.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	9 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial Instruments Our cash and cash equivalents, accounts receivable, accounts payable, accrued expenses, and other current assets and liabilities (excluding derivative instruments) are carried at amounts which reasonably approximate their fair values due to their short-term nature. Commodity Derivatives The following table summarizes the estimated fair values of our commodity derivative assets and liabilities reported in our unaudited condensed consolidated balance sheet at the dates indicated: December 31, 2019 March 31, 2019 Derivative Derivative Derivative Derivative (in thousands) Level 1 measurements $ 3,671 $ (9,877 ) $ 3,754 $ (1,349 ) Level 2 measurements 8,819 (5,469 ) 8,882 (5,119 ) 12,490 (15,346 ) 12,636 (6,468 ) Netting of counterparty contracts (1) (3,824 ) 3,824 (1,577 ) 1,577 Net cash collateral provided (held) 14,460 6,105 1,740 (208 ) Commodity derivatives $ 23,126 $ (5,417 ) $ 12,799 $ (5,099 ) (1) Relates to commodity derivative assets and liabilities that are expected to be net settled on an exchange or through a netting arrangement with the counterparty. Our physical contracts that do not qualify as normal purchase normal sale transactions are not subject to such netting arrangements. The following table summarizes the accounts that include our commodity derivative assets and liabilities in our unaudited condensed consolidated balance sheets at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Prepaid expenses and other current assets $ 23,126 $ 12,799 Accrued expenses and other payables (5,353 ) (4,960 ) Other noncurrent liabilities (64 ) (139 ) Net commodity derivative asset $ 17,709 $ 7,700 The following table summarizes our open commodity derivative contract positions at the dates indicated. We do not account for these derivatives as hedges. Contracts Settlement Period Net Long Fair Value (in thousands) At December 31, 2019: Crude oil fixed-price (1) January 2020–December 2020 (4,359 ) $ (5,330 ) Propane fixed-price (1) January 2020–March 2021 271 (1,332 ) Refined products fixed-price (1) January 2020–January 2021 (327 ) (1,103 ) Other January 2020–March 2022 4,909 (2,856 ) Net cash collateral provided 20,565 Net commodity derivative asset $ 17,709 At March 31, 2019: Crude oil fixed-price (1) April 2019–December 2020 (1,961 ) 979 Propane fixed-price (1) April 2019–March 2020 198 608 Refined products fixed-price (1) April 2019–January 2021 (177 ) 376 Other April 2019–March 2022 4,205 6,168 Net cash collateral provided 1,532 Net commodity derivative asset $ 7,700 (1) We may have fixed price physical purchases, including inventory, offset by floating price physical sales or floating price physical purchases offset by fixed price physical sales. These contracts are derivatives we have entered into as an economic hedge against the risk of mismatches between fixed and floating price physical obligations. Amounts as of December 31, 2019 and March 31, 2019 in the tables above do not include commodity derivative contract positions related to Mid-Con and Gas Blending, as these amounts have been classified as current and noncurrent assets and liabilities held for sale within our December 31, 2019 and March 31, 2019 unaudited condensed consolidated balance sheets (see Note 16 ). Amounts as of March 31, 2019 in the tables above do not include commodity derivative contract positions related to TPSL, as these amounts have been classified as current assets and liabilities held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ). During the three months and nine months ended December 31, 2019 , we recorded a net loss of $15.1 million and a net gain of $0.8 million , respectively, from our commodity derivatives to revenues and cost of sales in our unaudited condensed consolidated statements of operations. During the three months and nine months ended December 31, 2018 , we recorded net gains of $69.7 million and $30.0 million , respectively, from our commodity derivatives to revenues and cost of sales in our unaudited condensed consolidated statements of operations. These amounts do not include net gains and losses related to Mid- Con, Gas Blending, TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ). Credit Risk We have credit policies that we believe minimize our overall credit risk, including an evaluation of potential counterparties’ financial condition (including credit ratings), collateral requirements under certain circumstances, and the use of industry standard master netting agreements, which allow for offsetting counterparty receivable and payable balances for certain transactions. At December 31, 2019 , our primary counterparties were retailers, resellers, energy marketers, producers, refiners, and dealers. This concentration of counterparties may impact our overall exposure to credit risk, either positively or negatively, as the counterparties may be similarly affected by changes in economic, regulatory or other conditions. If a counterparty does not perform on a contract, we may not realize amounts that have been recorded in our unaudited condensed consolidated balance sheets and recognized in our net income. Interest Rate Risk The Revolving Credit Facility is variable-rate debt with interest rates that are generally indexed to bank prime or LIBOR interest rates. At December 31, 2019 , we had $1.4 billion of outstanding borrowings under the Revolving Credit Facility at a weighted average interest rate of 4.07% . The Term Credit Agreement is variable-rate debt with interest rates that are generally indexed to bank prime or LIBOR interest rates. At December 31, 2019 , we had $250.0 million of outstanding borrowings under the Term Credit Agreement at an interest rate of 4.74% . Fair Value of Fixed-Rate Notes The following table provides fair value estimates of our fixed-rate notes at December 31, 2019 (in thousands): Senior Unsecured Notes: 2023 Notes $ 608,272 2025 Notes $ 366,273 2026 Notes $ 436,478 For the Senior Unsecured Notes, the fair value estimates were developed based on publicly traded quotes and would be classified as Level 1 in the fair value hierarchy.

Segments

Segments	9 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Segments	Segments The following table summarizes revenues related to our segments. Transactions between segments are recorded based on prices negotiated between the segments. The “Corporate and Other” category in the table below includes certain corporate expenses that are not allocated to the reportable segments. Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Revenues: Crude Oil Logistics: Topic 606 revenues Crude oil sales $ 646,296 $ 718,621 $ 1,925,039 $ 2,300,703 Crude oil transportation and other 44,613 40,003 127,767 107,032 Non-Topic 606 revenues 3,585 2,909 10,825 9,291 Elimination of intersegment sales (3,505 ) (10,353 ) (15,330 ) (21,962 ) Total Crude Oil Logistics revenues 690,989 751,180 2,048,301 2,395,064 Water Solutions: Topic 606 revenues Disposal service fees 94,218 55,470 226,635 167,573 Sale of recovered hydrocarbons 16,470 17,337 45,566 56,063 Freshwater revenues 5,634 651 9,737 1,939 Other service revenues 5,285 1,986 12,701 5,753 Non-Topic 606 revenues — 14 — 39 Total Water Solutions revenues 121,607 75,458 294,639 231,367 Liquids: Topic 606 revenues Propane sales 309,668 372,224 564,820 793,605 Butane sales 226,730 222,412 396,776 481,459 Other product sales 145,082 151,246 376,148 471,547 Service revenues 5,181 7,616 22,230 17,509 Non-Topic 606 revenues 5,506 6,314 14,658 16,506 Elimination of intersegment sales (6,542 ) (10,379 ) (12,851 ) (20,854 ) Total Liquids revenues 685,625 749,433 1,361,781 1,759,772 Refined Products and Renewables: Topic 606 revenues Refined products sales 627,590 650,780 1,942,146 1,944,959 Non-Topic 606 revenues 100,438 68,199 255,090 233,775 Total Refined Products and Renewables revenues 728,028 718,979 2,197,236 2,178,734 Corporate and Other: Non-Topic 606 revenues 280 319 799 1,066 Total Corporate and Other revenues 280 319 799 1,066 Total revenues $ 2,226,529 $ 2,295,369 $ 5,902,756 $ 6,566,003 The following tables summarize depreciation and amortization expense (including amortization expense recorded within interest expense, cost of sales and operating expenses in Note 7 and Note 8 ) and operating income (loss) by segment for the periods indicated. Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Depreciation and Amortization: Crude Oil Logistics $ 17,950 $ 18,387 $ 53,228 $ 56,566 Water Solutions 48,184 27,561 114,438 79,212 Liquids 6,833 6,449 20,718 19,449 Refined Products and Renewables 197 233 578 699 Corporate and Other 3,752 2,975 9,651 9,340 Total depreciation and amortization $ 76,916 $ 55,605 $ 198,613 $ 165,266 Operating Income (Loss): Crude Oil Logistics $ 28,696 $ 32,022 $ 101,018 $ (36,694 ) Water Solutions (583 ) 86,737 34,380 97,476 Liquids 64,084 21,532 80,965 34,913 Refined Products and Renewables 24,954 20,552 32,242 4,516 Corporate and Other (20,756 ) (16,394 ) (74,575 ) (69,176 ) Total operating income $ 96,395 $ 144,449 $ 174,030 $ 31,035 The following table summarizes additions to property, plant and equipment and intangible assets by segment for the periods indicated. This information has been prepared on the accrual basis, and includes property, plant and equipment and intangible assets acquired in acquisitions. The information below does not include goodwill by segment. Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Crude Oil Logistics $ 4,953 $ 6,169 $ 23,817 $ 21,701 Water Solutions 692,826 115,928 1,838,237 463,423 Liquids 2,641 357 13,465 1,738 Refined Products and Renewables — — 224 — Corporate and Other 2,427 248 5,485 846 Total $ 702,847 $ 122,702 $ 1,881,228 $ 487,708 The following tables summarize long-lived assets (consisting of property, plant and equipment, intangible assets, operating lease right-of-use assets and goodwill) and total assets by segment at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Long-lived assets, net: Crude Oil Logistics $ 1,581,887 $ 1,584,636 Water Solutions 3,523,877 1,600,836 Liquids (1) 616,602 498,767 Refined Products and Renewables 38,790 29,477 Corporate and Other 33,707 26,569 Total $ 5,794,863 $ 3,740,285 (1) Includes $28.9 million and $0.5 million of non-US long-lived assets at December 31, 2019 and March 31, 2019 , respectively. December 31, 2019 March 31, 2019 (in thousands) Total assets: Crude Oil Logistics $ 2,155,695 $ 2,237,612 Water Solutions 3,676,248 1,668,292 Liquids (1) 967,024 721,008 Refined Products and Renewables 264,468 383,026 Corporate and Other 84,027 77,019 Assets held for sale 95,093 815,536 Total $ 7,242,555 $ 5,902,493 (1) Includes $48.7 million and $12.0 million of non-US total assets at December 31, 2019 and March 31, 2019 , respectively. The tables above do not include amounts related to Mid-Con, Gas Blending, TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations in our unaudited condensed consolidated statements of operations and held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet and December 31, 2019 balance sheet for Mid-Con and Gas Blending (see Note 16 ).

Transactions with Affiliates

Transactions with Affiliates	9 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Transactions with Affiliates	Transactions with Affiliates A member of the board of directors of our general partner is an executive officer of WPX Energy, Inc. (“WPX”). We purchase crude oil from and sell crude oil to WPX (certain of the purchases and sales that were entered into in contemplation of each other are recorded on a net basis within revenues in our unaudited condensed consolidated statement of operations). We also treat and dispose of produced water and solids received from WPX. SemGroup Corporation (“SemGroup”) holds ownership interests in our general partner. We sell product to and purchase product from SemGroup, and these transactions are included within revenues and cost of sales, respectively, in our unaudited condensed consolidated statements of operations. In December 2019, Energy Transfer LP (“ET”) acquired SemGroup. During the three months ended December 31, 2019, we reevaluated our related parties and determined that SemGroup/ET no longer meet the criteria to be disclosed as a related party. For the tables below, information disclosed in prior periods have been retained but we have not disclosed any information related to transactions for the three months ended December 31, 2019. The following table summarizes these related party transactions for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Sales to WPX $ 13,888 $ 8,779 $ 36,716 $ 18,550 Purchases from WPX (1) $ 81,578 $ 91,391 $ 247,745 $ 248,718 Sales to SemGroup $ 257 $ 458 $ 926 Purchases from SemGroup $ — $ — $ 1,337 Sales to entities affiliated with management $ 3,642 $ 4,691 $ 5,362 $ 10,336 Purchases from entities affiliated with management $ 953 $ 675 $ 3,068 $ 2,481 Purchases from equity method investees $ 188 $ — $ 317 $ — (1) Amount primarily relates to purchases of crude oil under the definitive agreement we signed with WPX. Accounts receivable from affiliates consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Receivables from NGL Energy Holdings LLC $ 8,332 $ 7,277 Receivables from WPX 3,573 5,185 Receivables from SemGroup 71 Receivables from entities affiliated with management 540 334 Total $ 12,445 $ 12,867 Accounts payable to affiliates consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Payables to WPX $ 28,509 $ 27,844 Payables to entities affiliated with management 629 625 Payables to equity method investees 236 — Total $ 29,374 $ 28,469 Other Related Party Transactions Acquisition of Interest in KAIR2014 LLC During the three months ended June 30, 2019, we purchased a 50% interest in an aircraft company, KAIR2014 LLC, for $0.9 million in cash and accounted for our interest using the equity method of accounting (see Note 2 ). The remaining interest in KAIR2014 LLC is owned by our Chief Executive Officer, H. Michael Krimbill. Acquisition of Interest in NGL Energy Holdings LLC During the three months ended June 30, 2019, we purchased, in two transactions, a 1.89% interest in our general partner, NGL Energy Holdings LLC, for $2.4 million in cash and accounted for this as a deduction within limited partners’ equity in our unaudited condensed consolidated balance sheet. During the three months ended September 30, 2019, we purchased a 5.73% interest in our general partner, NGL Energy Holdings LLC, for $11.5 million in cash and accounted for this as a deduction within limited partners’ equity in our unaudited condensed consolidated balance sheet. This interest was purchased from a fund controlled by The Energy & Minerals Group, which is represented on the board of directors of our general partner. During the three months ended December 31, 2019, we purchased a 1.08% interest in our general partner, NGL Energy Holdings LLC, for $1.4 million in cash and accounted for this as a deduction within limited partners’ equity in our unaudited condensed consolidated balance sheet.

Revenue from Contracts with Cus

Revenue from Contracts with Customers	9 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue from Contract with Customer	Revenue from Contracts with Customers Effective April 1, 2018, we recognize revenue for services and products under revenue contracts as our obligations to either perform services or deliver or sell products under the contracts are satisfied. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation in the contract and is recognized as revenue when, or as, the performance obligation is satisfied. Our revenue contracts in scope under ASC 606 primarily have a single performance obligation. The evaluation of when performance obligations have been satisfied and the transaction price that is allocated to our performance obligations requires significant judgment and assumptions, including our evaluation of the timing of when control of the underlying good or service has transferred to our customers and the relative stand-alone selling price of goods and services provided to customers under contracts with multiple performance obligations. Actual results can vary from those judgments and assumptions. We do not have any material contracts with multiple performance obligations or under which we receive material amounts of non-cash consideration. Our costs to obtain or fulfill our revenue contracts were not material as of December 31, 2019 . The majority of our revenue agreements are within scope under ASC 606 and the remainder of our revenue comes from contracts that are accounted for as derivatives under ASC 815 or that contain nonmonetary exchanges or leases and are in scope under Topics 845 and 842, respectively. See Note 12 for a detail of disaggregated revenue. Revenue from contracts accounted for as derivatives under ASC 815 within our Refined Products and Renewables segment includes $1.2 million of net losses related to changes in the mark-to-market value of these arrangements recorded during the nine months ended December 31, 2019 . Remaining Performance Obligations Most of our service contracts are such that we have the right to consideration from a customer in an amount that corresponds directly with the value to the customer of our performance completed to date. Therefore, we are utilizing the practical expedient in ASC 606-10-55-18 under which we recognize revenue in the amount to which we have the right to invoice. Applying this practical expedient, we are not required to disclose the transaction price allocated to remaining performance obligations under these agreements. The following table summarizes the amount and timing of revenue recognition for such contracts at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 69,796 2021 217,453 2022 208,223 2023 202,046 2024 171,541 Thereafter 305,061 Total $ 1,174,120 Contract Assets and Liabilities The following tables summarize the balances of our contract assets and liabilities at the dates indicated: Balance at March 31, 2019 December 31, 2019 (in thousands) Accounts receivable from contracts with customers $ 613,827 $ 602,350 Contract liabilities at March 31, 2019 $ 8,461 Payment received and deferred 49,098 Payment recognized in revenue (27,566 ) Contract liabilities at December 31, 2019 $ 29,993 Amounts as of March 31, 2019 in the tables above do not include contract assets and liabilities related to TPSL, as these amounts have been classified as current assets and current liabilities held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).

Leases

Leases	9 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Leases	Leases We adopted ASC 842 effective April 1, 2019 using the modified retrospective method, with no adjustment to comparative period information, which remains reported under ASC 840, and no cumulative effect adjustment to equity. Upon adoption, we recorded operating lease right-of-use assets of $551.2 million and operating lease obligations of $549.0 million , including amounts classified as assets and liabilities held for sale. The adoption of this standard did not impact our unaudited condensed consolidated statement of operations or unaudited condensed consolidated statement of cash flows for the three months ended June 30, 2019. We also elected the following transitional practical expedients, which allowed us to (i) not evaluate land easements prior to April 1, 2019; (ii) use hindsight in determining the lease term; (iii) not reassess whether current or expired contracts contain leases; (iv) not reassess the lease classification for any expired or existing leases; and (v) not reassess initial costs. Lessee Accounting Our leasing activity primarily consists of product storage, office space, real estate, railcars, and equipment. We determine if an agreement contains a lease at the inception of the arrangement. If an arrangement is determined to contain a lease, we classify the lease as an operating lease or a finance lease depending on the terms of the arrangement. All of our leases are classified as operating leases. Operating lease right-of-use assets represent our right to use an underlying asset for the lease term when we control the use of the asset by obtaining substantially all of the economic benefits of the asset and direct the use of the asset. Operating lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease right-of-use assets and operating lease liabilities with an initial term of greater than one year are recognized at the commencement date based on the present value of lease payments over the lease term. As our leases do not provide an implicit interest rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. Our incremental borrowing rate represents the interest rate which we would pay to borrow, on a collateralized basis, an amount equal to the lease payments over a similar term in a similar economic environment. We do not have any leases that provide for guarantees of residual value. Our lease agreements may include options to extend or terminate the lease which are included in the measurement of our operating lease liability when it is reasonably certain that we will exercise the option. Lease renewal terms vary from one year to 30 years . Operating lease expense is recognized on a straight-line basis over the lease term. We have variable lease payments, including adjustments to lease payments based on an index or rate, such as a consumer price index, fair value adjustments to lease payments, and common area maintenance, real estate taxes, and insurance payments in certain real estate leases. We also have certain land leas es within our Water Solutions segment that require us to pay a royalty, which could be based on a flat rate per barrel disposed or a percentage of revenue generated. Variable lease payments are excluded from operating lease right-of-use assets and operating lease liabilities and are expensed as incurred. Operating lease right-of-use assets also include any lease prepayments and exclude lease incentives. For leases acquired as a result of an acquisition, the right-of-use asset also includes adjustments for any favorable or unfavorable market terms present in the lease. Short-term leases with an initial term of 12 months or less that do not include a purchase option, with the exception of railcar leases, are not recorded on the unaudited condensed consolidated balance sheet. Operating lease expense for short-term leases is recognized on a straight-line basis over the lease term and amounts related to short-term leases are disclosed within our condensed consolidated financial statements. We have lease agreements with lease and non-lease components, which are generally accounted for separately. For certain leases of buildings and land, we account for the lease and non-lease components as a single lease component based on the election of the practical expedient to not separate lease components from non-lease components. At December 31, 2019 , we had operating lease right-of-use assets of $183.1 million and current and noncurrent operating lease obligations of $57.1 million and $122.8 million , respectively, on our unaudited condensed consolidated balance sheet. At December 31, 2019 , the weighted-average remaining lease term and weighted-average discount rate for our operating leases was 6.46 years and 5.81% , respectively. The following table summarizes the components of our lease expense for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2019 (in thousands) Operating lease cost $ 22,320 $ 66,707 Variable lease cost 6,170 11,835 Short-term lease cost 219 478 Total lease cost $ 28,709 $ 79,020 Amounts in the table above do not include lease expense related to TPSL and Gas Blending, as these amounts have been classified within discontinued operations within our unaudited condensed consolidated statements of operations (see Note 16 ). Rental expense relating to operating leases was $22.0 million and $69.1 million during the three months and nine months ended December 31, 2018 , respectively. These amounts do not include rental expense related to Mid-Con, Gas Blending, TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ). The following table summarizes maturities of our operating lease liabilities at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 17,154 2021 60,126 2022 41,674 2023 28,974 2024 17,139 Thereafter 59,910 Total lease payments 224,977 Less imputed interest (45,088 ) Total operating lease liabilities $ 179,889 The following table summarizes future minimum lease payments under various noncancelable operating lease agreements at March 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 $ 78,348 2021 60,417 2022 43,259 2023 29,252 2024 18,341 Thereafter 41,845 Total $ 271,462 Amounts in the table above do not include future minimum lease payments related to Mid-Con, Gas Blending and TPSL, which have been classified as discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ). The following table summarizes supplemental cash flow and non-cash information related to our operating leases for the period indicated: Nine Months Ended December 31, 2019 (in thousands) Cash paid for amounts included in the measurement of operating lease liabilities $ 81,779 Operating lease right-of-use assets obtained in exchange for operating lease obligations $ 584,538 Lessor Accounting and Subleases Our lessor arrangements include storage and railcar contracts, of which certain agreements contain renewal options for periods of between one year and five years . We determine if an agreement contains a lease at the inception of the arrangement. If an arrangement is determined to contain a lease, we classify the lease as operating, sales-type or direct financing. Lessor accounting under ASC 842 is substantially unchanged and all of our leases will continue to be classified as operating leases. We also, from time to time, sublease certain of our storage capacity and railcars to third parties. Fixed rental revenue is recognized on a straight-line basis over the lease term. During the three months ended December 31, 2019 , fixed rental revenue was $4.9 million , which includes $1.3 million of sublease revenue. During the nine months ended December 31, 2019 , fixed rental revenue was $15.8 million , which includes $3.7 million of sublease revenue. The following table summarizes future minimum lease payments receivable under various noncancelable operating lease agreements at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 4,814 2021 16,190 2022 6,634 2023 5,387 2024 5,057 Thereafter 16,282 Total $ 54,364

Assets and Liabilities Held for

Assets and Liabilities Held for Sale and Discontinued Operations	9 Months Ended
	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Assets and Liabilities Held for Sale and Discontinued Operations	Assets and Liabilities Held for Sale and Discontinued Operations As discussed in Note 1 , we have classified certain assets and liabilities of the Mid-Con and Gas Blending businesses as held for sale and the operations as discontinued. On January 3, 2020, we completed the sale of Mid-Con to a third-party. See Note 1 for a further discussion. As discussed in Note 1 , the assets and liabilities of TPSL have been classified as held for sale and the operations as discontinued. On September 30, 2019, we completed the sale of TPSL and associated assets to Trajectory. See Note 1 for a further discussion. As discussed in Note 1 , on July 10, 2018, we completed the sale of virtually all of our remaining Retail Propane segment to Superior and on August 14, 2018, we sold our previously held interest in Victory Propane, and the operations of our Retail Propane segment have been classified as discontinued. See Note 1 for a further discussion. The following table summarizes the major classes of assets and liabilities of Mid-Con, Gas Blending and TPSL classified as held for sale at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Current Assets Held for Sale Accounts receivable-trade, net $ — $ 164,716 Inventories 44,500 327,015 Operating lease right-of-use assets 19,873 — Prepaid expenses and other current assets 28,027 89,254 Goodwill 2,693 — Total current assets held for sale 95,093 580,985 Noncurrent Assets Held for Sale Property, plant and equipment, net — 15,553 Goodwill — 35,405 Intangible assets, net — 137,446 Other noncurrent assets (1) — 46,147 Total noncurrent assets held for sale — 234,551 Total assets held for sale $ 95,093 $ 815,536 Current Liabilities Held for Sale Accounts payable-trade $ — $ 85,602 Accrued expenses and other payables 21,026 140,691 Advance payments received from customers — 460 Operating lease obligations 19,873 — Total current liabilities held for sale 40,899 226,753 Noncurrent Liabilities Held for Sale Other noncurrent liabilities — 33 Total noncurrent liabilities held for sale — 33 Total liabilities held for sale $ 40,899 $ 226,786 (1) Primarily comprised of tank bottoms, which are product volumes required for the operation of storage tanks, that are recorded at historical cost. We recover tank bottoms when the storage tanks are removed from service. At March 31, 2019 , tank bottoms held in third party terminals consisted of 389,737 barrels of refined products. Tank bottoms held in terminals we own are included within property, plant and equipment. The following table summarizes the results of operations from discontinued operations for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Revenues $ 1,938,398 $ 4,081,451 $ 10,493,630 $ 12,380,744 Cost of sales 1,936,324 4,065,723 10,497,492 12,310,152 Operating expenses 397 2,587 5,898 34,572 General and administrative expense — 20 53 2,699 Depreciation and amortization — 153 749 9,164 Loss (gain) on disposal or impairment of assets, net (1) 7,791 (263 ) 182,240 (407,646 ) Operating (loss) income from discontinued operations (6,114 ) 13,231 (192,802 ) 431,803 Equity in earnings of unconsolidated entities — — — 1,183 Interest expense (1 ) — (111 ) (126 ) Other income, net — 105 133 773 (Loss) income from discontinued operations before taxes (2) (6,115 ) 13,336 (192,780 ) 433,633 Income tax expense — (7 ) (20 ) (132 ) (Loss) income from discontinued operations, net of tax $ (6,115 ) $ 13,329 $ (192,800 ) $ 433,501 (1) Amount for the nine months ended December 31, 2019 includes a loss of $181.2 million on the sale of TPSL and a loss of $1.0 million on the sale of virtually all of our remaining Retail Propane segment to Superior on July 10, 2018. Amount for the nine months ended December 31, 2018 includes a gain of $408.9 million on the sale of virtually all of our remaining Retail Propane segment to Superior on July 10, 2018, partially offset by a loss of $1.3 million on the sale of a portion of our Retail Propane segment to DCC on March 30, 2018 related to a working capital adjustment. (2) Amount includes a loss attributable to redeemable noncontrolling interests of $0.4 million for the nine months ended December 31, 2018 . Continuing Involvement As of December 31, 2019 , we have commitments to purchase 1.1 million gallons of finished gasoline, valued at $1.7 million (based on the contract price), from Trajectory, the purchaser of TPSL, through January 2020. During the three months and nine months ended December 31, 2019 , we received $3.6 million and $3.6 million , respectively, from Trajectory for finished gasoline sold to them during the period. During the three months and nine months ended December 31, 2019 , we paid $1.8 million and $1.8 million , respectively, to Trajectory for finished gasoline purchased from them during the period. As of December 31, 2019 , we have commitments to sell up to 30.9 million gallons of propane, valued at $18.1 million (based on the contract price), to Superior and DCC LPG, the purchasers of our former Retail Propane segment, through March 2021. During the three months and nine months ended December 31, 2019 , we received a combined $3.8 million and $7.5 million , respectively, from Superior and DCC LPG for propane sold to them during the period.

Subsequent Events

Subsequent Events	9 Months Ended
	Dec. 31, 2019
Business Combinations [Abstract]
Subsequent Events	Subsequent Events On January 3, 2020, we completed the sale of our Mid-Con business. The business was sold to a third-party whom purchased the inventory and open derivative positions and assumed the Partnership’s obligations under certain system storage agreements. The Partnership retained all of the outstanding accounts receivable and accounts payable balances associated with this business that related to transactions prior to the closing date. To facilitate the assignment of the system storage agreements, the Partnership paid $6.3 million . See Note 1 and Note 16 for a further discussion of the transaction. On January 31, 2020, we paid Trajectory $41.7 million , which includes interest charges through the date of payment, related to the final working capital adjustment for the sale of TPSL. See Note 1 and Note 16 for a further discussion of the transaction.

Unaudited Condensed Consolidati

Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information	9 Months Ended
	Dec. 31, 2019
Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information [Abstract]
Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information	Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information Certain of our wholly owned subsidiaries have, jointly and severally, fully and unconditionally guaranteed the Senior Unsecured Notes (see Note 8 ). Pursuant to Rule 3-10 of Regulation S-X, we have presented in columnar format the unaudited condensed consolidating financial information for NGL Energy Partners LP (Parent), NGL Energy Finance Corp., the guarantor subsidiaries on a combined basis, and the non-guarantor subsidiaries on a combined basis in the tables below. NGL Energy Partners LP and NGL Energy Finance Corp. are co-issuers of the Senior Unsecured Notes. Since NGL Energy Partners LP received the proceeds from the issuance of the Senior Unsecured Notes, this activity has been included in the NGL Energy Partners LP (Parent) column in the tables below. During the periods presented in the tables below, the status of certain subsidiaries changed, in that they either became guarantors of or ceased to be guarantors of the Senior Unsecured Notes. For purposes of the tables below, when the status of a subsidiary changes, all subsidiary activity is included in either the guarantor subsidiaries column or non-guarantor subsidiaries column based on the status of the subsidiary at the balance sheet date regardless of activity during the year. There are no significant restrictions that prevent the parent or any of the guarantor subsidiaries from obtaining funds from their respective subsidiaries by dividend or loan. None of the assets of the guarantor subsidiaries (other than the investments in non-guarantor subsidiaries) are restricted net assets pursuant to Rule 4-08(e)(3) of Regulation S-X under the Securities Act of 1933, as amended. For purposes of the tables below, (i) the unaudited condensed consolidating financial information is presented on a legal entity basis, (ii) investments in consolidated subsidiaries are accounted for as equity method investments, and (iii) contributions, distributions, and advances to (from) consolidated entities are reported on a net basis within net changes in advances with consolidated entities in the unaudited condensed consolidating statement of cash flow tables below. As discussed further in Note 1 and Note 16 , certain assets and liabilities related to Mid-Con and Gas Blending and the assets and liabilities related to TPSL have been classified as held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet and December 31, 2019 unaudited condensed consolidated balance sheet for Mid-Con and Gas Blending and the results of operations and cash flows related to Mid-Con, Gas Blending, TPSL and our former Retail Propane segment (including equity in earnings of Victory Propane) have been classified as discontinued operations for all periods presented and prior periods have been retrospectively adjusted in the unaudited condensed consolidated statements of operations and unaudited condensed consolidated statements of cash flows. Unaudited Condensed Consolidating Balance Sheet (in Thousands) December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated ASSETS CURRENT ASSETS: Cash and cash equivalents $ 182,635 $ — $ (174,771 ) $ 4,144 $ — $ 12,008 Accounts receivable-trade, net of allowance for doubtful accounts — — 947,307 227 — 947,534 Accounts receivable-affiliates — — 12,445 — — 12,445 Inventories — — 182,977 761 — 183,738 Prepaid expenses and other current assets — — 90,239 455 — 90,694 Assets held for sale — — 95,093 — — 95,093 Total current assets 182,635 — 1,153,290 5,587 — 1,341,512 PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation — — 2,510,670 193,442 — 2,704,112 GOODWILL — — 1,301,880 5,175 — 1,307,055 INTANGIBLE ASSETS, net of accumulated amortization — — 1,530,120 70,435 — 1,600,555 INVESTMENTS IN UNCONSOLIDATED ENTITIES — — 22,236 — — 22,236 NET INTERCOMPANY RECEIVABLES (PAYABLES) 1,768,795 — (1,699,213 ) (69,582 ) — — INVESTMENTS IN CONSOLIDATED SUBSIDIARIES 2,019,081 — 123,793 — (2,142,874 ) — OPERATING LEASE RIGHT-OF-USE ASSETS — — 178,607 4,534 — 183,141 OTHER NONCURRENT ASSETS — — 83,944 — — 83,944 Total assets $ 3,970,511 $ — $ 5,205,327 $ 209,591 $ (2,142,874 ) $ 7,242,555 LIABILITIES AND EQUITY CURRENT LIABILITIES: Accounts payable-trade $ — $ — $ 846,667 $ 100 $ — $ 846,767 Accounts payable-affiliates 1 — 29,373 — — 29,374 Accrued expenses and other payables 30,537 — 321,126 1,185 — 352,848 Advance payments received from customers — — 27,108 2,885 — 29,993 Current maturities of long-term debt — — 4,835 — — 4,835 Operating lease obligations — — 56,747 344 — 57,091 Liabilities held for sale — — 40,899 — — 40,899 Total current liabilities 30,538 — 1,326,755 4,514 — 1,361,807 LONG-TERM DEBT, net of debt issuance costs and current maturities 1,429,027 — 1,639,178 — — 3,068,205 OPERATING LEASE OBLIGATIONS — — 118,847 3,951 — 122,798 OTHER NONCURRENT LIABILITIES — — 101,466 2,594 — 104,060 CLASS D 9.00% PREFERRED UNITS 531,768 — — — — 531,768 EQUITY: Partners’ equity 1,979,178 — 2,019,081 198,780 (2,217,613 ) 1,979,426 Accumulated other comprehensive loss — — — (248 ) — (248 ) Noncontrolling interests — — — — 74,739 74,739 Total equity 1,979,178 — 2,019,081 198,532 (2,142,874 ) 2,053,917 Total liabilities and equity $ 3,970,511 $ — $ 5,205,327 $ 209,591 $ (2,142,874 ) $ 7,242,555 Unaudited Condensed Consolidating Balance Sheet (in Thousands) March 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated ASSETS CURRENT ASSETS: Cash and cash equivalents $ 12,798 $ — $ 3,728 $ 2,046 $ — $ 18,572 Accounts receivable-trade, net of allowance for doubtful accounts — — 996,192 2,011 — 998,203 Accounts receivable-affiliates — — 12,867 — — 12,867 Inventories — — 135,094 1,034 — 136,128 Prepaid expenses and other current assets — — 65,443 475 — 65,918 Assets held for sale — — 580,985 — — 580,985 Total current assets 12,798 — 1,794,309 5,566 — 1,812,673 PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation — — 1,620,084 208,856 — 1,828,940 GOODWILL — — 1,105,281 5,175 — 1,110,456 INTANGIBLE ASSETS, net of accumulated amortization — — 725,542 75,347 — 800,889 INVESTMENTS IN UNCONSOLIDATED ENTITIES — — 1,127 — — 1,127 NET INTERCOMPANY RECEIVABLES (PAYABLES) 862,186 — (808,610 ) (53,576 ) — — INVESTMENTS IN CONSOLIDATED SUBSIDIARIES 2,503,848 — 170,690 — (2,674,538 ) — OTHER NONCURRENT ASSETS — — 113,857 — — 113,857 ASSETS HELD FOR SALE — — 234,551 — — 234,551 Total assets $ 3,378,832 $ — $ 4,956,831 $ 241,368 $ (2,674,538 ) $ 5,902,493 LIABILITIES AND EQUITY CURRENT LIABILITIES: Accounts payable-trade $ — $ — $ 872,122 $ 6,941 $ — $ 879,063 Accounts payable-affiliates 1 — 28,468 — — 28,469 Accrued expenses and other payables 25,497 — 80,765 1,497 — 107,759 Advance payments received from customers — — 7,550 911 — 8,461 Current maturities of long-term debt — — 648 — — 648 Liabilities held for sale — — 226,753 — — 226,753 Total current liabilities 25,498 — 1,216,306 9,349 — 1,251,153 LONG-TERM DEBT, net of debt issuance costs and current maturities 984,450 — 1,175,683 — — 2,160,133 OTHER NONCURRENT LIABILITIES — — 60,961 2,581 — 63,542 NONCURRENT LIABILITIES HELD FOR SALE — — 33 — — 33 CLASS A 10.75% CONVERTIBLE PREFERRED UNITS 149,814 — — — — 149,814 EQUITY: Partners’ equity 2,219,070 — 2,503,848 229,693 (2,733,286 ) 2,219,325 Accumulated other comprehensive loss — — — (255 ) — (255 ) Noncontrolling interests — — — — 58,748 58,748 Total equity 2,219,070 — 2,503,848 229,438 (2,674,538 ) 2,277,818 Total liabilities and equity $ 3,378,832 $ — $ 4,956,831 $ 241,368 $ (2,674,538 ) $ 5,902,493 Unaudited Condensed Consolidating Statement of Operations (in Thousands) Three Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 2,223,900 $ 5,127 $ (2,498 ) $ 2,226,529 COST OF SALES — — 1,937,767 36 (2,331 ) 1,935,472 OPERATING COSTS AND EXPENSES: Operating — — 92,180 2,399 (167 ) 94,412 General and administrative — — 28,952 198 — 29,150 Depreciation and amortization — — 70,396 3,330 — 73,726 Gain on disposal or impairment of assets, net — — (12,626 ) — — (12,626 ) Revaluation of liabilities — — 10,000 — — 10,000 Operating Income (Loss) — — 97,231 (836 ) — 96,395 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 534 — — 534 Interest expense (26,664 ) — (20,241 ) (26 ) 11 (46,920 ) Other (expense) income, net — — (229 ) 14 (11 ) (226 ) (Loss) Income From Continuing Operations Before Income Taxes (26,664 ) — 77,295 (848 ) — 49,783 INCOME TAX EXPENSE — — (677 ) — — (677 ) EQUITY IN NET INCOME (LOSS) FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES 69,821 — (682 ) — (69,139 ) — Income (Loss) From Continuing Operations 43,157 — 75,936 (848 ) (69,139 ) 49,106 Loss From Discontinued Operations, Net of Tax — — (6,115 ) — — (6,115 ) Net Income (Loss) 43,157 — 69,821 (848 ) (69,139 ) 42,991 LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 166 166 NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ 43,157 $ — $ 69,821 $ (848 ) $ (68,973 ) $ 43,157 Unaudited Condensed Consolidating Statement of Operations (in Thousands) Three Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 2,292,268 $ 4,286 $ (1,185 ) $ 2,295,369 COST OF SALES — — 2,049,328 518 (1,185 ) 2,048,661 OPERATING COSTS AND EXPENSES: Operating — — 58,389 2,076 — 60,465 General and administrative — — 24,599 160 — 24,759 Depreciation and amortization — — 50,724 2,557 — 53,281 Gain on disposal or impairment of assets, net — — (36,246 ) — — (36,246 ) Operating Income (Loss) — — 145,474 (1,025 ) — 144,449 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 1,777 — — 1,777 Interest expense (24,026 ) — (15,124 ) (12 ) 11 (39,151 ) Loss on early extinguishment of liabilities, net (10,083 ) — — — — (10,083 ) Other income, net — — 1,198 — (11 ) 1,187 (Loss) Income From Continuing Operations Before Income Taxes (34,109 ) — 133,325 (1,037 ) — 98,179 INCOME TAX EXPENSE — — (980 ) — — (980 ) EQUITY IN NET INCOME (LOSS) FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES 144,944 — (730 ) — (144,214 ) — Income (Loss) From Continuing Operations 110,835 — 131,615 (1,037 ) (144,214 ) 97,199 Income From Discontinued Operations, Net of Tax — — 13,329 — — 13,329 Net Income (Loss) 110,835 — 144,944 (1,037 ) (144,214 ) 110,528 LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 307 307 NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ 110,835 $ — $ 144,944 $ (1,037 ) $ (143,907 ) $ 110,835 Unaudited Condensed Consolidating Statement of Operations (in Thousands) Nine Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 5,869,693 $ 38,501 $ (5,438 ) $ 5,902,756 COST OF SALES — — 5,218,841 535 (4,771 ) 5,214,605 OPERATING COSTS AND EXPENSES: Operating — — 217,662 13,615 (667 ) 230,610 General and administrative — — 92,730 670 — 93,400 Depreciation and amortization — — 180,630 9,963 — 190,593 Gain on disposal or impairment of assets, net — — (10,478 ) (4 ) — (10,482 ) Revaluation of liabilities — — 10,000 — — 10,000 Operating Income — — 160,308 13,722 — 174,030 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 277 — — 277 Interest expense (79,119 ) — (52,680 ) (49 ) 34 (131,814 ) Other income, net — — 947 54 (34 ) 967 (Loss) Income From Continuing Operations Before Income Taxes (79,119 ) — 108,852 13,727 — 43,460 INCOME TAX EXPENSE — — (996 ) — — (996 ) EQUITY IN NET (LOSS) INCOME FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES (70,654 ) — 14,290 — 56,364 — (Loss) Income From Continuing Operations (149,773 ) — 122,146 13,727 56,364 42,464 Loss From Discontinued Operations, Net of Tax — — (192,800 ) — — (192,800 ) Net (Loss) Income (149,773 ) — (70,654 ) 13,727 56,364 (150,336 ) LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 563 563 NET (LOSS) INCOME ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ (149,773 ) $ — $ (70,654 ) $ 13,727 $ 56,927 $ (149,773 ) Unaudited Condensed Consolidating Statement of Operations (in Thousands) Nine Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 6,558,089 $ 10,768 $ (2,854 ) $ 6,566,003 COST OF SALES — — 6,049,032 495 (2,854 ) 6,046,673 OPERATING COSTS AND EXPENSES: Operating — — 166,013 6,206 — 172,219 General and administrative — — 85,737 691 — 86,428 Depreciation and amortization — — 150,093 7,678 — 157,771 Loss on disposal or impairment of assets, net — — 71,077 — — 71,077 Revaluation of liabilities — — 800 — — 800 Operating Income (Loss) — — 35,337 (4,302 ) — 31,035 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 2,375 — — 2,375 Interest expense (83,011 ) — (43,764 ) (35 ) 34 (126,776 ) Loss on early extinguishment of liabilities, net (10,220 ) — — — — (10,220 ) Other expense, net — — (31,196 ) — (219 ) (31,415 ) Loss From Continuing Operations Before Income Taxes (93,231 ) — (37,248 ) (4,337 ) (185 ) (135,001 ) INCOME TAX EXPENSE — — (2,322 ) — — (2,322 ) EQUITY IN NET INCOME (LOSS) FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES 391,025 — (3,750 ) — (387,275 ) — Income (Loss) From Continuing Operations 297,794 — (43,320 ) (4,337 ) (387,460 ) (137,323 ) Income (Loss) From Discontinued Operations, Net of Tax — — 434,345 (1,029 ) 185 433,501 Net Income (Loss) 297,794 — 391,025 (5,366 ) (387,275 ) 296,178 LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 1,170 1,170 LESS: NET LOSS ATTRIBUTABLE TO REDEEMABLE NONCONTROLLING INTERESTS 446 446 NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ 297,794 $ — $ 391,025 $ (5,366 ) $ (385,659 ) $ 297,794 Unaudited Condensed Consolidating Statements of Comprehensive Income (Loss) (in Thousands) Three Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net income (loss) $ 43,157 $ — $ 69,821 $ (848 ) $ (69,139 ) $ 42,991 Other comprehensive (los s) income — — (1 ) 17 — 16 Comprehensive income (loss) $ 43,157 $ — $ 69,820 $ (831 ) $ (69,139 ) $ 43,007 Three Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net income (loss) $ 110,835 $ — $ 144,944 $ (1,037 ) $ (144,214 ) $ 110,528 Other comprehensive loss — — — (3 ) — (3 ) Comprehensive income (loss) $ 110,835 $ — $ 144,944 $ (1,040 ) $ (144,214 ) $ 110,525 Nine Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net (loss) income $ (149,773 ) $ — $ (70,654 ) $ 13,727 $ 56,364 $ (150,336 ) Other comprehensive inco me (loss) — — 17 (10 ) — 7 Comprehensive (loss) income $ (149,773 ) $ — $ (70,637 ) $ 13,717 $ 56,364 $ (150,329 ) Nine Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net income (loss) $ 297,794 $ — $ 391,025 $ (5,366 ) $ (387,275 ) $ 296,178 Other comprehensive loss — — (1 ) (26 ) — (27 ) Comprehensive income (loss) $ 297,794 $ — $ 391,024 $ (5,392 ) $ (387,275 ) $ 296,151 Unaudited Condensed Consolidating Statement of Cash Flows (in Thousands) Nine Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidated OPERATING ACTIVITIES: Net cash (used in) provided by operating activities-continuing operations $ (74,889 ) $ — $ 308,905 $ 39,572 $ 273,588 Net cash provided by operating activities-discontinued operations — — 59,890 — 59,890 Net cash (used in) provided by operating activities (74,889 ) — 368,795 39,572 333,478 INVESTING ACTIVITIES: Capital expenditures — — (380,050 ) (47,203 ) (427,253 ) Acquisitions, net of cash acquired — — (1,262,853 ) — (1,262,853 ) Net settlements of commodity derivatives — — 2,735 — 2,735 Proceeds from sales of assets — — 17,052 4 17,056 Investments in unconsolidated entities — — (21,272 ) — (21,272 ) Distributions of capital from unconsolidated entities — — 440 — 440 Repayments on loan for natural gas liquids facility — — 3,022 — 3,022 Net cash used in investing activities-continuing operations — — (1,640,926 ) (47,199 ) (1,688,125 ) Net cash provided by investing activities-discontinued operations — — 281,908 — 281,908 Net cash used in investing activities — — (1,359,018 ) (47,199 ) (1,406,217 ) FINANCING ACTIVITIES: Proceeds from borrowings under Revolving Credit Facility — — 3,461,000 — 3,461,000 Payments on Revolving Credit Facility — — (3,240,000 ) — (3,240,000 ) Issuance of senior unsecured notes and term credit agreement 450,000 — 250,000 — 700,000 Payments on other long-term debt — — (489 ) — (489 ) Debt issuance costs (8,034 ) — (5,164 ) — (13,198 ) Distributions to general and common unit partners and preferred unitholders (180,021 ) — — — (180,021 ) Distributions to noncontrolling interest owners — — — (570 ) (570 ) Proceeds from sale of preferred units, net of offering costs 622,965 — — — 622,965 Payments for redemption of preferred units (265,128 ) — — — (265,128 ) Common unit repurchases and cancellations (1,205 ) — — — (1,205 ) Payments for settlement and early extinguishment of liabilities — — (1,953 ) — (1,953 ) Investment in NGL Energy Holdings LLC (15,226 ) — — — (15,226 ) Net changes in advances with consolidated entities (358,625 ) — 348,330 10,295 — Net cash provided by financing activities 244,726 — 811,724 9,725 1,066,175 Net increase (decrease) in cash and cash equivalents 169,837 — (178,499 ) 2,098 (6,564 ) Cash and cash equivalents, beginning of period 12,798 — 3,728 2,046 18,572 Cash and cash equivalents, end of period $ 182,635 $ — $ (174,771 ) $ 4,144 $ 12,008 Unaudited Condensed Consolidating Statement of Cash Flows (in Thousands) Nine Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Adjustments Consolidated OPERATING ACTIVITIES: Net cash (used in) provided by operating activities-continuing operations $ (92,619 ) $ — $ 92,240 $ 3,759 $ (185 ) $ 3,195 Net cash provided by operating activities-discontinued operations — — 109,242 3,221 — 112,463 Net cash (used in) provided by operating activities (92,619 ) — 201,482 6,980 (185 ) 115,658 INVESTING ACTIVITIES: Capital expenditures — — (301,883 ) (2,106 ) — (303,989 ) Acquisitions, net of cash acquired — — (194,044 ) (3,927 ) — (197,971 ) Net settlements of commodity derivatives — — 5,066 — — 5,066 Proceeds from sales of assets — — 8,335 — — 8,335 Proceeds from divestitures of businesses and investments, net — — 103,594 — — 103,594 Investments in unconsolidated entities — — (92 ) — — (92 ) Repayments on loan for natural gas liquids facility — — 8,371 — — 8,371 Loan to affiliate — — (1,515 ) — — (1,515 ) Net cash used in investing activities-continuing operations — — (372,168 ) (6,033 ) — (378,201 ) Net cash provided by investing activities-discontinued operations — — 929,709 6,982 — 936,691 Net cash provided by investing activities — — 557,541 949 — 558,490 FINANCING ACTIVITIES: Proceeds from borrowings under Revolving Credit Facility — — 2,956,500 — — 2,956,500 Payments on Revolving Credit Facility — — (3,037,000 ) — — (3,037,000 ) Repayment and repurchase of senior unsecured notes (395,471 ) — — — — (395,471 ) Payments on other long-term debt — — (488 ) — — (488 ) Debt issuance costs (16 ) — (899 ) — — (915 ) Contributions from noncontrolling interest owners, net — — — 169 — 169 Distributions to general and common unit partners and preferred unitholders (177,003 ) — — — — (177,003 ) Repurchase of warrants (14,988 ) — — — — (14,988 ) Common unit repurchases and cancellations (162 ) — — — — (162 ) Payments for settlement and early extinguishment of liabilities — — (3,534 ) — — (3,534 ) Net changes in advances with consolidated entities 669,236 — (661,753 ) (7,668 ) 185 — Net cash provided by (used in) financing activities-continuing operations 81,596 — (747,174 ) (7,499 ) 185 (672,892 ) Net cash used in financing activities-discontinued operations — — (295 ) (30 ) — (325 ) Net cash provided by (used in) financing activities 81,596 — (747,469 ) (7,529 ) 185 (673,217 ) Net (decrease) increase in cash and cash equivalents (11,023 ) — 11,554 400 — 931 Cash and cash equivalents, beginning of period 16,915 — 3,329 1,850 — 22,094 Cash and cash equivalents, end of period $ 5,892 $ — $ 14,883 $ 2,250 $ — $ 23,025

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	9 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation The accompanying unaudited condensed consolidated financial statements include our accounts and those of our controlled subsidiaries. Intercompany transactions and account balances have been eliminated in consolidation. Investments we do not control, but can exercise significant influence over, are accounted for using the equity method of accounting. We also own an undivided interest in a crude oil pipeline, and include our proportionate share of assets, liabilities, and expenses related to this pipeline in our unaudited condensed consolidated financial statements. Our unaudited condensed consolidated financial statements are prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim consolidated financial information in accordance with the rules and regulations of the Securities and Exchange Commission (“SEC”). Accordingly, the unaudited condensed consolidated financial statements exclude certain information and notes required by GAAP for complete annual consolidated financial statements. However, we believe that the disclosures made are adequate to make the information presented not misleading. The unaudited condensed consolidated financial statements include all adjustments that we consider necessary for a fair presentation of our consolidated financial position, results of operations and cash flows for the interim periods presented. Such adjustments consist only of normal recurring items, unless otherwise disclosed in this Quarterly Report. The unaudited condensed consolidated balance sheet at March 31, 2019 was derived from our audited consolidated financial statements for the fiscal year ended March 31, 2019 included in our Current Report on Form 8-K (“Current Report”) filed with the SEC on November 22, 2019.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in conformity with GAAP requires us to make estimates and assumptions that affect the amount of assets and liabilities reported at the date of the consolidated financial statements and the amount of revenues and expenses reported during the periods presented. Critical estimates we make in the preparation of our unaudited condensed consolidated financial statements include, among others, determining the fair value of assets and liabilities acquired in acquisitions, the fair value of derivative instruments, the collectibility of accounts receivable, the recoverability of inventories, useful lives and recoverability of property, plant and equipment and amortizable intangible assets, the impairment of long-lived assets and goodwill, the fair value of asset retirement obligations, the value of equity-based compensation, accruals for environmental matters and estimating certain revenues. Although we believe these estimates are reasonable, actual results could differ from those estimates.
Fair Value Measurements	Fair Value Measurements Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in an orderly transaction between market participants at the measurement date. Fair value is based upon assumptions that market participants would use when pricing an asset or liability. We use the following fair value hierarchy, which prioritizes valuation technique inputs used to measure fair value into three broad levels: • Level 1: Quoted prices in active markets for identical assets and liabilities that we have the ability to access at the measurement date. • Level 2: Inputs (other than quoted prices included within Level 1) that are either directly or indirectly observable for the asset or liability, including (i) quoted prices for similar assets or liabilities in active markets, (ii) quoted prices for identical or similar assets or liabilities in inactive markets, (iii) inputs other than quoted prices that are observable for the asset or liability, and (iv) inputs that are derived from observable market data by correlation or other means. Instruments categorized in Level 2 include non-exchange traded derivatives such as over-the-counter commodity price swap and option contracts and forward commodity contracts. We determine the fair value of all of our derivative financial instruments utilizing pricing models for similar instruments. Inputs to the pricing models include publicly available prices and forward curves generated from a compilation of data gathered from third parties. • Level 3: Unobservable inputs for the asset or liability including situations where there is little, if any, market activity for the asset or liability. The fair value hierarchy gives the highest priority to quoted prices in active markets (Level 1) and the lowest priority to unobservable inputs (Level 3). In some cases, the inputs used to measure fair value might fall into different levels of the fair value hierarchy. The lowest level input that is significant to a fair value measurement determines the applicable level in the fair value hierarchy. Assessing the significance of a particular input to a fair value measurement requires judgment, considering factors specific to the asset or liability.
Derivative Financial Instruments	Derivative Financial Instruments We record all derivative financial instrument contracts at fair value in our unaudited condensed consolidated balance sheets except for certain physical contracts that qualify for the normal purchase and normal sale election . Under this accounting policy election, we do not record the physical contracts at fair value at each balance sheet date; instead, we record the purchase or sale at the contracted value once the delivery occurs. We have not designated any financial instruments as hedges for accounting purposes. All changes in the fair value of our physical contracts that do not qualify as normal purchases and normal sales and settlements (whether cash transactions or non-cash mark-to-market adjustments) are reported either within revenue (for sales contracts) or cost of sales (for purchase contracts) in our unaudited condensed consolidated statements of operations, regardless of whether the contract is physically or financially settled. We utilize various commodity derivative financial instrument contracts to attempt to reduce our exposure to price fluctuations. We do not enter into such contracts for trading purposes. Changes in assets and liabilities from commodity derivative financial instruments result primarily from changes in market prices, newly originated transactions, and the timing of settlements and are reported within cost of sales on the unaudited condensed consolidated statements of operations, along with related settlements. We attempt to balance our contractual portfolio in terms of notional amounts and timing of performance and delivery obligations. However, net unbalanced positions can exist or are established based on our assessment of anticipated market movements. Inherent in the resulting contractual portfolio are certain business risks, including commodity price risk and credit risk. Commodity price risk is the risk that the market value of crude oil, natural gas liquids, or refined and renewables products will change, either favorably or unfavorably, in response to changing market conditions. Credit risk is the risk of loss from nonperformance by suppliers, customers or financial counterparties to a contract. Procedures and limits for managing commodity price risks and credit risks are specified in our market risk policy and credit policy, respectively. Open commodity positions and market price changes are monitored daily and are reported to senior management and to marketing operations personnel. Credit risk is monitored daily and exposure is minimized through customer deposits, restrictions on product liftings, letters of credit, and entering into master netting agreements that allow for offsetting counterparty receivable and payable balances for certain transactions.
Income Taxes	Income Taxes We qualify as a partnership for income tax purposes. As such, we generally do not pay United States federal income tax. Rather, each owner reports his or her share of our income or loss on his or her individual tax return. The aggregate difference in the basis of our net assets for financial and tax reporting purposes cannot be readily determined, as we do not have access to information regarding each partner’s basis in the Partnership. We have certain taxable corporate subsidiaries in the United States and Canada, and our operations in Texas are subject to a state franchise tax that is calculated based on revenues net of cost of sales. We have a deferred tax liability of $51.3 million at December 31, 2019 as a result of acquiring corporations in connection with certain of our acquisitions, which is included within other noncurrent liabilities in our unaudited condensed consolidated balance sheet. The deferred tax liability at December 31, 2019 increased by $38.7 million from September 30, 2019 due to our acquisition of Hillstone (as defined herein), which included entities taxed as corporations for United States federal income tax purposes. The deferred tax liability is the tax effected cumulative temporary difference between the GAAP basis and tax basis of the acquired assets within the corporation. For GAAP purposes, certain of the acquired assets will be depreciated and amortized over time which will lower the GAAP basis. The deferred tax benefit recorded during the nine months ended December 31, 2019 was $1.4 million with an effective tax rate of 25.1% . We evaluate uncertain tax positions for recognition and measurement in the unaudited condensed consolidated financial statements. To recognize a tax position, we determine whether it is more likely than not that the tax position will be sustained upon examination, including resolution of any related appeals or litigation, based on the technical merits of the position. A tax position that meets the more likely than not threshold is measured to determine the amount of benefit to be recognized in the unaudited condensed consolidated financial statements. We had no material uncertain tax positions that required recognition in our unaudited condensed consolidated financial statements at December 31, 2019 or March 31, 2019 .
Inventories	Inventories
Investments in Unconsolidated Entities	Investments in Unconsolidated Entities Investments we do not control, but can exercise significant influence over, are accounted for using the equity method of accounting. Investments in partnerships and limited liability companies, unless our investment is considered to be minor, and investments in unincorporated joint ventures are also accounted for using the equity method of accounting. Under the equity method, we do not report the individual assets and liabilities of these entities on our unaudited condensed consolidated balance sheets; instead, our ownership interests are reported within investments in unconsolidated entities on our unaudited condensed consolidated balance sheets. Under the equity method, the investment is recorded at acquisition cost, increased by our proportionate share of any earnings and additional capital contributions and decreased by our proportionate share of any losses, distributions paid, and amortization of any excess investment. Excess investment is the amount by which our total investment exceeds our proportionate share of the net assets of the investee.
Noncontrolling Interests	Noncontrolling Interests Noncontrolling interests represent the portion of certain consolidated subsidiaries that are owned by third parties. Amounts are adjusted by the noncontrolling interest holder’s proportionate share of the subsidiaries’ earnings or losses each period and any distributions that are paid. Noncontrolling interests are reported as a component of equity.
Acquisitions	Acquisitions To determine if a transaction should be accounted for as a business combination or an acquisition of assets, we first calculate the relative fair values of the assets acquired. If substantially all of the relative fair value is concentrated in a single asset or group of similar assets, or if not but the transaction does not include a significant process (does not meet the definition of a business), we record the transaction as an acquisition of assets. For acquisitions of assets, the purchase price is allocated based on the relative fair values. For an acquisition of assets, goodwill is not recorded. All other transactions are recorded as business combinations. We record the assets acquired and liabilities assumed in a business combination at their acquisition date fair values. For a business combination, the excess of the purchase price over the net fair value of acquired assets and assumed liabilities is recorded as goodwill, which is not amortized but instead is evaluated for impairment at least annually. Pursuant to GAAP, an entity is allowed a reasonable period of time (not to exceed one year) to obtain the information necessary to identify and measure the fair value of the assets acquired and liabilities assumed in a business combination. As discussed in Note 4 , certain of our acquisitions are still within this measurement period, and as a result, the acquisition date fair values we have recorded for the assets acquired and liabilities assumed are subject to change. Also, as discussed in Note 4 , we made certain adjustments during the nine months ended December 31, 2019 to our estimates of the acquisition date fair values of the assets acquired and liabilities assumed in business combinations that occurred during the fiscal year ended March 31, 2019.
Reclassifications	Reclassifications We have reclassified certain prior period financial statement information to be consistent with the classification methods used in the current fiscal year. These reclassifications did not impact previously reported amounts of assets, liabilities, equity, net income, or cash flows.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In June 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) No. 2016-13, “Financial Instruments-Credit Losses.” The ASU requires a financial asset (or a group of financial assets) measured at amortized cost to be presented at the net amount expected to be collected, which would include accounts receivable. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectibility of the reported amount. The ASU is effective for the Partnership beginning April 1, 2020, and requires a modified retrospective method of adoption, although early adoption is permitted. We are currently in the process of assessing the impact of this ASU on our consolidated financial statements. In February 2016, the FASB issued ASC 842, “Leases.” This ASU replaced previous lease accounting guidance in GAAP. The new guidance requires the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases. It also retains a distinction between finance leases and operating leases. For lessors, the new accounting model remains largely the same, although some changes have been made to align it with the new lessee model and the ASC 606 revenue recognition guidance. We adopted ASC 842 effective April 1, 2019 using the modified retrospective method, with no adjustment to comparative period information, which remains reported under ASC 840, and no cumulative effect adjustment to equity. See Note 15 for a further discussion of the impact of adoption of ASC 842 to our unaudited condensed consolidated financial statements.

Equity (Policies)

Equity (Policies)	9 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Service Awards	Service Awards are valued at the average of the high/low sales price as of the grant date less the present value of the expected distribution stream over the vesting period using a risk-free interest rate. We record the expense for each Service Award on a straight-line basis over the requisite period for the entire award (that is, over the requisite service period of the last separately vesting portion of the award), ensuring that the amount of compensation cost recognized at any date at least equals the portion of the grant-date value of the award that is vested at that date.

Revenue from Contracts with C_2

Revenue from Contracts with Customers (Policies)	9 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Revenue recognition	Effective April 1, 2018, we recognize revenue for services and products under revenue contracts as our obligations to either perform services or deliver or sell products under the contracts are satisfied. A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation in the contract and is recognized as revenue when, or as, the performance obligation is satisfied. Our revenue contracts in scope under ASC 606 primarily have a single performance obligation. The evaluation of when performance obligations have been satisfied and the transaction price that is allocated to our performance obligations requires significant judgment and assumptions, including our evaluation of the timing of when control of the underlying good or service has transferred to our customers and the relative stand-alone selling price of goods and services provided to customers under contracts with multiple performance obligations. Actual results can vary from those judgments and assumptions. We do not have any material contracts with multiple performance obligations or under which we receive material amounts of non-cash consideration. Our costs to obtain or fulfill our revenue contracts were not material as of December 31, 2019 .

Leases (Policies)

Leases (Policies)	9 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Lessee accounting policy	Our leasing activity primarily consists of product storage, office space, real estate, railcars, and equipment. We determine if an agreement contains a lease at the inception of the arrangement. If an arrangement is determined to contain a lease, we classify the lease as an operating lease or a finance lease depending on the terms of the arrangement. All of our leases are classified as operating leases. Operating lease right-of-use assets represent our right to use an underlying asset for the lease term when we control the use of the asset by obtaining substantially all of the economic benefits of the asset and direct the use of the asset. Operating lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease right-of-use assets and operating lease liabilities with an initial term of greater than one year are recognized at the commencement date based on the present value of lease payments over the lease term. As our leases do not provide an implicit interest rate, we use our incremental borrowing rate based on the information available at the commencement date in determining the present value of lease payments. Our incremental borrowing rate represents the interest rate which we would pay to borrow, on a collateralized basis, an amount equal to the lease payments over a similar term in a similar economic environment. We do not have any leases that provide for guarantees of residual value. Our lease agreements may include options to extend or terminate the lease which are included in the measurement of our operating lease liability when it is reasonably certain that we will exercise the option. Lease renewal terms vary from one year to 30 years . Operating lease expense is recognized on a straight-line basis over the lease term. We have variable lease payments, including adjustments to lease payments based on an index or rate, such as a consumer price index, fair value adjustments to lease payments, and common area maintenance, real estate taxes, and insurance payments in certain real estate leases. We also have certain land leas es within our Water Solutions segment that require us to pay a royalty, which could be based on a flat rate per barrel disposed or a percentage of revenue generated. Variable lease payments are excluded from operating lease right-of-use assets and operating lease liabilities and are expensed as incurred. Operating lease right-of-use assets also include any lease prepayments and exclude lease incentives. For leases acquired as a result of an acquisition, the right-of-use asset also includes adjustments for any favorable or unfavorable market terms present in the lease. Short-term leases with an initial term of 12 months or less that do not include a purchase option, with the exception of railcar leases, are not recorded on the unaudited condensed consolidated balance sheet. Operating lease expense for short-term leases is recognized on a straight-line basis over the lease term and amounts related to short-term leases are disclosed within our condensed consolidated financial statements. We have lease agreements with lease and non-lease components, which are generally accounted for separately. For certain leases of buildings and land, we account for the lease and non-lease components as a single lease component based on the election of the practical expedient to not separate lease components from non-lease components.
Lessor accounting policy	Our lessor arrangements include storage and railcar contracts, of which certain agreements contain renewal options for periods of between one year and five years

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	9 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Schedule of inventories	Inventories consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Crude oil $ 48,901 $ 51,359 Natural gas liquids: Propane 68,144 33,478 Butane 37,134 15,294 Other 11,506 7,482 Refined products and renewables: Diesel 10,474 9,186 Ethanol 1,668 14,650 Biodiesel 5,911 4,679 Total $ 183,738 $ 136,128 Amounts as of December 31, 2019 and March 31, 2019 in the table above do not include inventory related to Mid-Con and Gas Blending, as these amounts have been classified as current assets held for sale within our December 31, 2019 and March 31, 2019 unaudited condensed consolidated balance sheets (see Note 16 ). Amounts as of March 31, 2019 in the table above do not include inventory related to TPSL, as these amounts have been classified as current assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).
Schedule of investments in unconsolidated entities	Our investments in unconsolidated entities consist of the following at the dates indicated: Entity Segment Ownership Date Acquired December 31, 2019 March 31, 2019 (in thousands) Water services and land company (2) Water Solutions 50% November 2019 $ 15,624 $ — Water services and land company (3) Water Solutions 50% November 2019 2,067 — Water services and land company (4) Water Solutions 10% November 2019 3,247 — Aircraft company (5) Corporate and Other 50% June 2019 638 — Water services company (6) Water Solutions 50% August 2018 480 920 Natural gas liquids terminal company (7) Liquids 50% March 2019 180 207 Total $ 22,236 $ 1,127 (1) Ownership interest percentages are at December 31, 2019 . (2) This is an investment that we acquired as part of an acquisition in November 2019 (see Note 4), and represents certain membership interests related to specific land operations. (3) This is an investment that we acquired as part of an acquisition in November 2019 (see Note 4), and represents certain membership interests related to specific land operations. (4) This is an investment that we acquired as part of an acquisition in November 2019 (see Note 4), and represents certain membership interests related to specific water services operations. (5) This is an investment with a related party. See Note 13 for a further discussion. (6) This is an investment that we acquired as part of an acquisition in August 2018. (7) This is an investment that we acquired as part of an acquisition in March 2019.
Schedule of other noncurrent assets	Other noncurrent assets consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Loan receivable (1) $ 9,060 $ 19,474 Line fill (2) 33,437 33,437 Minimum shipping fees - pipeline commitments (3) 18,510 23,494 Other 22,937 37,452 Total $ 83,944 $ 113,857 (1) Represents the noncurrent portion of a loan receivable associated with our interest in the construction of a natural gas liquids loading/unloading facility (the “Facility”) that is utilized by a third party that filed for Chapter 11 bankruptcy during the three months ended September 30, 2019. As of December 31, 2019 , we are owed a total of $26.4 million under this loan receivable, of which approximately $20.2 million is recorded within prepaid expenses and other current assets in our unaudited condensed unconsolidated balance sheet. Our loan receivable is secured by a lien on the Facility. We have filed our Proof of Claim within the bankruptcy case and although the third party may have the option to reject the agreement governing the receivable in the context of the bankruptcy proceeding, subject to bankruptcy court approval, the third party’s current intention appears to be to transfer the Facility to a third party purchaser in satisfaction of the full amount owed under the receivable. It is also possible that the third party may deviate from this course and propose a different plan. Accordingly, we will continue to monitor the bankruptcy case through its conclusion. The remaining amount represents the noncurrent portion of a loan receivable with Victory Propane. (2) Represents minimum volumes of product we are required to leave on certain third-party owned pipelines under long-term shipment commitments. At December 31, 2019 , line fill consisted of 335,069 barrels of crude oil and 262,000 barrels of propane. At March 31, 2019 , line fill consisted of 335,069 barrels of crude oil and 262,000 barrels of propane. Line fill held in pipelines we own is included within property, plant and equipment (see Note 5). (3) Represents the noncurrent portion of minimum shipping fees paid in excess of volumes shipped, or deficiency credits, for one contract with a crude oil pipeline operator. This amount can be recovered when volumes shipped exceed the minimum monthly volume commitment (see Note 9). As of March 31, 2019, the deficiency credit was $23.5 million . In October 2019, we extended our commitment with this crude oil pipeline operator and this extension provides us with an additional 5.5 years in which to use the deficiency credit (see Note 9). As of December 31, 2019 , the deficiency credit was $22.8 million , of which $4.3 million is recorded within prepaid expenses and other current assets in our unaudited condensed unconsolidated balance sheet. Amounts as of March 31, 2019 in the table above do not include other noncurrent assets related to TPSL, as these amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).
Schedule of accrued expenses and other payables	Accrued expenses and other payables consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Accrued compensation and benefits $ 17,940 $ 19,312 Excise and other tax liabilities 19,300 10,481 Derivative liabilities 5,353 4,960 Accrued interest 25,838 24,882 Product exchange liabilities 7,382 5,945 Gavilon legal matter settlement (Note 9) — 12,500 Contingent consideration liability (Note 4) 200,000 — TPSL working capital settlement (Note 17) 41,508 — Other 35,527 29,679 Total $ 352,848 $ 107,759 Amounts as of December 31, 2019 and March 31, 2019 in the table above do not include derivative liabilities related to Mid-Con and Gas Blending, as these amounts have been classified as current liabilities held for sale within our December 31, 2019 and March 31, 2019 unaudited condensed consolidated balance sheets (see Note 16 ). Amounts as of March 31, 2019 in the table above do not include accrued expenses and other payables related to TPSL, as these amounts have been classified as current liabilities held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).

Income (Loss) Per Common Unit (

Income (Loss) Per Common Unit (Tables)	9 Months Ended
	Dec. 31, 2019
Earnings Per Unit [Abstract]
Schedule of weighted average number of units	The following table presents our calculation of basic and diluted weighted average common units outstanding for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 Weighted average common units outstanding during the period: Common units - Basic 128,201,369 123,892,680 127,026,510 122,609,625 Effect of Dilutive Securities: Warrants — 1,456,947 — — Service awards 1,157,221 610,124 — — Common units - Diluted 129,358,590 125,959,751 127,026,510 122,609,625 For the three months ended December 31, 2019 , the warrants were antidilutive. For the three months ended December 31, 2018 , the Class A Preferred Units (as defined herein) were considered antidilutive. For the nine months ended December 31, 2019 and 2018 , the warrants, Service Awards (as defined herein) and Class A Preferred Units were considered antidilutive.
Schedule of income (loss) per common unit	Our income (loss) per common unit is as follows for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands, except unit and per unit amounts) Income (loss) from continuing operations $ 49,106 $ 97,199 $ 42,464 $ (137,323 ) Less: Continuing operations loss attributable to noncontrolling interests 166 307 563 1,170 Net income (loss) from continuing operations attributable to NGL Energy Partners LP 49,272 97,506 43,027 (136,153 ) Less: Distributions to preferred unitholders (1) (20,312 ) (29,748 ) (166,835 ) (73,882 ) Less: Continuing operations net (income) loss allocated to general partner (2) (65 ) (102 ) 16 107 Net income (loss) from continuing operations allocated to common unitholders $ 28,895 $ 67,656 $ (123,792 ) $ (209,928 ) (Loss) income from discontinued operations, net of tax $ (6,115 ) $ 13,329 $ (192,800 ) $ 433,501 Less: Discontinued operations loss attributable to redeemable noncontrolling interests — — — 446 Less: Discontinued operations loss (income) allocated to general partner (2) 6 (13 ) 193 (434 ) Net (loss) income from discontinued operations allocated to common unitholders $ (6,109 ) $ 13,316 $ (192,607 ) $ 433,513 Net income (loss) allocated to common unitholders $ 22,786 $ 80,972 $ (316,399 ) $ 223,585 Basic income (loss) per common unit Income (loss) from continuing operations $ 0.23 $ 0.54 $ (0.97 ) $ (1.71 ) (Loss) income from discontinued operations, net of tax $ (0.05 ) $ 0.11 $ (1.52 ) $ 3.53 Net income (loss) $ 0.18 $ 0.65 $ (2.49 ) $ 1.82 Diluted income (loss) per common unit Income (loss) from continuing operations $ 0.22 $ 0.53 $ (0.97 ) $ (1.71 ) (Loss) income from discontinued operations, net of tax $ (0.05 ) $ 0.11 $ (1.52 ) $ 3.53 Net income (loss) $ 0.18 $ 0.64 $ (2.49 ) $ 1.82 Basic weighted average common units outstanding 128,201,369 123,892,680 127,026,510 122,609,625 Diluted weighted average common units outstanding 129,358,590 125,959,751 127,026,510 122,609,625 (1) This amount includes distributions to preferred unitholders, the final accretion for the beneficial conversion of the Class A Preferred Units and the excess of the Class A Preferred Units repurchase price over the carrying value of the units, as discussed further in Note 10 . (2) Net (income) loss allocated to the general partner includes distributions to which it is entitled as the holder of incentive distribution rights.

Acquisitions (Tables)

Acquisitions (Tables)	9 Months Ended
	Dec. 31, 2019
Hillstone
Business Acquisition
Schedule of the fair values of the assets acquired and liabilities assumed	The following table summarizes the preliminary estimates of the fair values as of December 31, 2019 for the assets acquired and liabilities assumed (in thousands): Current assets $ 35,171 Property, plant and equipment 144,803 Goodwill 113,939 Intangible assets 400,000 Investments in unconsolidated entities 335 Operating lease right-of-use assets 3,090 Other noncurrent assets 811 Assets held for sale 5,100 Current liabilities (16,234 ) Operating lease obligations (3,090 ) Other noncurrent liabilities (1,448 ) Deferred tax liability (39,178 ) Liabilities held for sale (786 ) Fair value of net assets acquired $ 642,513
Mesquite
Business Acquisition
Schedule of the fair values of the assets acquired and liabilities assumed	The following table summarizes the preliminary estimates of the fair values as of December 31, 2019 for the assets acquired and liabilities assumed (in thousands): Property, plant and equipment $ 370,923 Goodwill 77,549 Intangible assets 458,678 Other noncurrent liabilities (4,769 ) Noncontrolling interests (17,124 ) Fair value of net assets acquired $ 885,257
Water Solutions Facilities 2020 Acquisitions Acquisition Accounting In Process
Business Acquisition
Schedule of the fair values of the assets acquired and liabilities assumed	The following table summarizes the preliminary estimates of the fair values as of December 31, 2019 for the assets acquired and liabilities assumed (in thousands): Property, plant and equipment $ 24,324 Goodwill 2,413 Intangible assets 26,688 Other noncurrent liabilities (425 ) Fair value of net assets acquired $ 53,000

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	9 Months Ended
	Dec. 31, 2019
Property, Plant and Equipment [Abstract]
Schedule of property, plant and equipment	Our property, plant and equipment consists of the following at the dates indicated: Description Estimated December 31, 2019 March 31, 2019 (in years) (in thousands) Natural gas liquids terminal and storage assets 2 - 30 $ 310,091 $ 280,106 Pipeline and related facilities 30 - 40 244,021 243,799 Vehicles and railcars 3 - 25 122,219 124,948 Water treatment facilities and equipment 3 - 30 1,277,654 704,666 Crude oil tanks and related equipment 2 - 30 228,012 225,476 Barges and towboats 5 - 30 123,847 103,735 Information technology equipment 3 - 7 34,331 31,831 Buildings and leasehold improvements 3 - 40 147,964 143,711 Land 87,593 62,379 Tank bottoms and line fill (1) 20,339 20,071 Other 3 - 20 15,069 14,870 Construction in progress 597,703 290,805 3,208,843 2,246,397 Accumulated depreciation (504,731 ) (417,457 ) Net property, plant and equipment $ 2,704,112 $ 1,828,940 (1) Tank bottoms, which are product volumes required for the operation of storage tanks, are recorded at historical cost. We recover tank bottoms when the storage tanks are removed from service. Line fill, which represents our portion of the product volume required for the operation of the proportionate share of a pipeline we own, is recorded at historical cost. Amounts as of March 31, 2019 in the table above do not include property, plant and equipment and accumulated depreciation related to TPSL, as these amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).
Schedule of depreciation expense and capitalized interest expense	The following table summarizes depreciation expense and capitalized interest expense for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Depreciation expense $ 37,687 $ 26,263 $ 94,477 $ 76,671 Capitalized interest expense $ 439 $ 160 $ 439 $ 482 Amounts in the table above do not include depreciation expense and capitalized interest related to TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ).
Schedule of (gain) loss on sale of assets	We record (gains) losses from the sales of property, plant and equipment and any write-downs in value due to impairment within (gain) loss on disposal or impairment of assets, net in our unaudited condensed consolidated statements of operations. The following table summarizes (gains) losses on the disposal or impairment of property, plant and equipment by segment for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Crude Oil Logistics $ 198 $ (75 ) $ (592 ) $ 1,251 Water Solutions 4,476 (443 ) 8,075 2,762 Liquids (26 ) — (33 ) 994 Total $ 4,648 $ (518 ) $ 7,450 $ 5,007

Goodwill (Tables)

Goodwill (Tables)	9 Months Ended
	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of changes in goodwill by segment	The following table summarizes changes in goodwill by segment during the nine months ended December 31, 2019 : Crude Oil Water Liquids Refined Total (in thousands) Balances at March 31, 2019 $ 579,846 $ 410,139 $ 103,421 $ 17,050 $ 1,110,456 Revisions to acquisition accounting (Note 4) — 4,755 (2,057 ) — 2,698 Acquisitions (Note 4) — 193,901 — — 193,901 Balances at December 31, 2019 $ 579,846 $ 608,795 $ 101,364 $ 17,050 $ 1,307,055 Amounts in the table above do not include goodwill that was allocated to Gas Blending, as the amount has been classified as current assets held for sale in our December 31, 2019 unaudited condensed consolidated balance sheet. Amounts in the table above do not include goodwill that was allocated to TPSL and Gas Blending, as the amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 1 and Note 16 ).

Intangible Assets (Tables)

Intangible Assets (Tables)	9 Months Ended
	Dec. 31, 2019
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Schedule of finite-lived intangible assets	Our intangible assets consist of the following at the dates indicated: December 31, 2019 March 31, 2019 Description Amortizable Lives Gross Carrying Accumulated Net Gross Carrying Accumulated Net (in years) (in thousands) Amortizable: Customer relationships 3 - 30 $ 1,384,922 $ (428,971 ) $ 955,951 $ 742,832 $ (369,983 ) $ 372,849 Customer commitments 10 - 25 502,000 (102,007 ) 399,993 310,000 (74,917 ) 235,083 Pipeline capacity rights 30 7,800 (1,582 ) 6,218 7,799 (1,387 ) 6,412 Rights-of-way and easements 1 - 45 86,988 (6,185 ) 80,803 73,409 (4,509 ) 68,900 Water rights 13 - 30 100,936 (6,709 ) 94,227 64,868 (3,018 ) 61,850 Executory contracts and other agreements 5 - 30 55,029 (19,412 ) 35,617 47,230 (17,212 ) 30,018 Non-compete agreements 2 - 24 19,823 (5,259 ) 14,564 12,723 (2,570 ) 10,153 Debt issuance costs (1) 3 - 5 43,830 (33,448 ) 10,382 42,345 (29,521 ) 12,824 Total amortizable 2,201,328 (603,573 ) 1,597,755 1,301,206 (503,117 ) 798,089 Non-amortizable: Trade names 2,800 — 2,800 2,800 — 2,800 Total $ 2,204,128 $ (603,573 ) $ 1,600,555 $ 1,304,006 $ (503,117 ) $ 800,889 (1) Includes debt issuance costs related to the Revolving Credit Facility (as defined herein). Debt issuance costs related to fixed-rate notes and Term Credit Agreement (as defined herein) are reported as a reduction of the carrying amount of long-term debt. Amounts as of March 31, 2019 in the table above do not include intangible assets and accumulated amortization of TPSL, as these amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).
Schedule of indefinite-lived intangible assets	Our intangible assets consist of the following at the dates indicated: December 31, 2019 March 31, 2019 Description Amortizable Lives Gross Carrying Accumulated Net Gross Carrying Accumulated Net (in years) (in thousands) Amortizable: Customer relationships 3 - 30 $ 1,384,922 $ (428,971 ) $ 955,951 $ 742,832 $ (369,983 ) $ 372,849 Customer commitments 10 - 25 502,000 (102,007 ) 399,993 310,000 (74,917 ) 235,083 Pipeline capacity rights 30 7,800 (1,582 ) 6,218 7,799 (1,387 ) 6,412 Rights-of-way and easements 1 - 45 86,988 (6,185 ) 80,803 73,409 (4,509 ) 68,900 Water rights 13 - 30 100,936 (6,709 ) 94,227 64,868 (3,018 ) 61,850 Executory contracts and other agreements 5 - 30 55,029 (19,412 ) 35,617 47,230 (17,212 ) 30,018 Non-compete agreements 2 - 24 19,823 (5,259 ) 14,564 12,723 (2,570 ) 10,153 Debt issuance costs (1) 3 - 5 43,830 (33,448 ) 10,382 42,345 (29,521 ) 12,824 Total amortizable 2,201,328 (603,573 ) 1,597,755 1,301,206 (503,117 ) 798,089 Non-amortizable: Trade names 2,800 — 2,800 2,800 — 2,800 Total $ 2,204,128 $ (603,573 ) $ 1,600,555 $ 1,304,006 $ (503,117 ) $ 800,889 (1) Includes debt issuance costs related to the Revolving Credit Facility (as defined herein). Debt issuance costs related to fixed-rate notes and Term Credit Agreement (as defined herein) are reported as a reduction of the carrying amount of long-term debt. Amounts as of March 31, 2019 in the table above do not include intangible assets and accumulated amortization of TPSL, as these amounts have been classified as noncurrent assets held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).
Schedule of amortization expense	Amortization expense is as follows for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, Recorded In 2019 2018 2019 2018 (in thousands) Depreciation and amortization $ 36,039 $ 27,018 $ 96,116 $ 81,100 Cost of sales 86 101 262 385 Interest expense 1,371 1,250 3,927 3,668 Operating expenses 110 — 372 — Total $ 37,606 $ 28,369 $ 100,677 $ 85,153 Amounts in the table above do not include amortization expense related to TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations within our unaudited condensed consolidated statements of operations (see Note 16 ).
Schedule of expected amortization of intangible assets	Expected amortization of our intangible assets is as follows (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 39,679 2021 146,692 2022 133,534 2023 125,159 2024 118,961 Thereafter 1,033,730 Total $ 1,597,755

Long-Term Debt (Tables)

Long-Term Debt (Tables)	9 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of long-term debt	Our long-term debt consists of the following at the dates indicated: December 31, 2019 March 31, 2019 Face Unamortized Book Face Unamortized Book (in thousands) Revolving credit facility: Expansion capital borrowings $ 945,000 $ — $ 945,000 $ 275,000 $ — $ 275,000 Working capital borrowings 447,000 — 447,000 896,000 — 896,000 Senior unsecured notes: 7.500% Notes due 2023 ("2023 Notes") 607,323 (5,782 ) 601,541 607,323 (6,916 ) 600,407 6.125% Notes due 2025 ("2025 Notes") 389,135 (4,451 ) 384,684 389,135 (5,092 ) 384,043 7.500% Notes due 2026 ("2026 Notes") 450,000 (7,198 ) 442,802 — — — Term credit agreement 250,000 (2,832 ) 247,168 — — — Other long-term debt 4,845 — 4,845 5,331 — 5,331 3,093,303 (20,263 ) 3,073,040 2,172,789 (12,008 ) 2,160,781 Less: Current maturities 4,835 — 4,835 648 — 648 Long-term debt $ 3,088,468 $ (20,263 ) $ 3,068,205 $ 2,172,141 $ (12,008 ) $ 2,160,133 (1) Debt issuance costs related to the Revolving Credit Facility are reported within intangible assets, rather than as a reduction of the carrying amount of long-term debt.
Schedule of future amortization expense of debt issuance costs	Expected amortization of debt issuance costs is as follows (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 1,922 2021 3,942 2022 3,929 2023 3,929 2024 3,305 Thereafter 3,236 Total $ 20,263
Schedule of financial covenants in Credit Agreement	The following table summarizes the debt covenant levels specified in the Credit Agreement (as amended): Senior Secured Interest Total Leverage Period Beginning Leverage Ratio (1) Coverage Ratio (2) Indebtedness Ratio (1) December 31, 2019 3.50 2.50 5.75 June 30, 2020 and thereafter 3.50 2.50 5.50 (1) Represents the maximum ratio for the period presented. (2)
Schedule of maturities of long-term debt	The scheduled maturities of our long-term debt are as follows at December 31, 2019 : Fiscal Year Ending March 31, Revolving Senior Unsecured Notes Term Credit Agreement Other Total (in thousands) 2020 (three months) $ — $ — $ — $ 161 $ 161 2021 — — — 4,684 4,684 2022 1,392,000 — — — 1,392,000 2023 — — — — — 2024 — 607,323 — — 607,323 Thereafter — 839,135 250,000 — 1,089,135 Total $ 1,392,000 $ 1,446,458 $ 250,000 $ 4,845 $ 3,093,303

Commitments and Contingencies (

Commitments and Contingencies (Tables)	9 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of change in asset retirement obligation	The following table summarizes changes in our asset retirement obligation, which is reported within other noncurrent liabilities in our unaudited condensed consolidated balance sheets (in thousands): Balance at March 31, 2019 $ 9,723 Liabilities incurred 1,125 Liabilities assumed in acquisitions 6,641 Liabilities settled (642 ) Accretion expense 734 Balance at December 31, 2019 $ 17,581
Schedule of future minimum payments under contractual commitments	The following table summarizes future minimum payments under these agreements at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 2,463 2021 6,453 2022 6,163 2023 4,502 2024 4,502 Thereafter 679 Total $ 24,762 Amounts in the table above do not include future minimum payments related to Mid-Con and Gas Blending as Mid-Con and Gas Blending have been classified as discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ).
Schedule of future minimum payments under pipeline capacity agreements	The following table summarizes future minimum throughput payments under these agreements at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 11,006 2021 35,314 2022 35,314 2023 35,314 2024 35,410 Thereafter 30,897 Total $ 183,255
Schedule of outstanding purchase commitments	At December 31, 2019 , we had the following commodity purchase commitments (in thousands): Crude Oil (1) Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Purchase Commitments: 2020 (three months) $ 49,160 824 $ 8,410 14,526 2021 — — 1,341 2,100 Total $ 49,160 824 $ 9,751 16,626 Index-Price Commodity Purchase Commitments: 2020 (three months) $ 684,946 11,730 $ 198,694 421,949 2021 544,878 10,617 1,321 3,662 2022 394,385 8,264 — — 2023 255,818 5,482 — — 2024 190,259 4,110 — — Total $ 2,070,286 40,203 $ 200,015 425,611 (1) Our crude oil index-price purchase commitments exceed our crude oil index-price sales commitments (presented below) due primarily to our long-term purchase commitments for crude oil that we purchase and ship on the Grand Mesa Pipeline. As these purchase commitments are deliver-or-pay contracts, whereby our counterparty is required to pay us for any volumes not delivered, we have not entered into corresponding long-term sales contracts for volumes we may not receive.
Schedule of outstanding sale commitments	At December 31, 2019 , we had the following commodity sale commitments (in thousands): Crude Oil Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Sale Commitments: 2020 (three months) $ 45,605 750 $ 99,333 123,418 2021 — — 13,746 20,034 2022 — — 157 203 Total $ 45,605 750 $ 113,236 143,655 Index-Price Commodity Sale Commitments: 2020 (three months) $ 817,155 13,294 $ 337,627 481,567 2021 23,367 390 28,365 46,659 Total $ 840,522 13,684 $ 365,992 528,226

Equity (Tables)

Equity (Tables)	9 Months Ended
	Dec. 31, 2019
Equity
Schedule of distributions declared	The following table summarizes distributions declared on our common units during the last four quarters: Date Declared Record Date Payment Date Amount Per Unit Amount Paid/Payable to Limited Partners Amount Paid/Payable to General Partner (in thousands) (in thousands) April 24, 2019 May 7, 2019 May 15, 2019 $ 0.3900 $ 49,127 $ 85 July 23, 2019 August 7, 2019 August 14, 2019 $ 0.3900 $ 49,217 $ 85 October 23, 2019 November 7, 2019 November 14, 2019 $ 0.3900 $ 49,936 $ 86 January 23, 2020 February 7, 2020 February 14, 2020 $ 0.3900 $ 50,056 $ 86
Service awards
Equity
Schedule of awards activity	The following table summarizes the Service Award activity during the nine months ended December 31, 2019 : Unvested Service Award units at March 31, 2019 2,308,400 Units granted 2,095,681 Units vested and issued (2,470,756 ) Units forfeited (152,425 ) Unvested Service Award units at December 31, 2019 1,780,900
Schedule of scheduled vesting of awards	The following table summarizes the scheduled vesting of our unvested Service Award units at December 31, 2019 : Fiscal Year Ending March 31, 2020 (three months) 443,725 2021 890,200 2022 446,975 Total 1,780,900
Schedule of estimated equity-based expense to be recorded on the awards granted	The following table summarizes the estimated future expense we expect to record on the unvested Service Award units at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 1,697 2021 4,640 2022 1,579 Total $ 7,916
Class B Perpetual Preferred Units
Equity
Schedule of distributions declared	The following table summarizes distributions declared on our Class B Preferred Units during the last four quarters: Amount Paid to Class B Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) March 15, 2019 April 1, 2019 April 15, 2019 $ 0.5625 $ 4,725 June 14, 2019 July 1, 2019 July 15, 2019 $ 0.5625 $ 4,725 September 16, 2019 October 1, 2019 October 15, 2019 $ 0.5625 $ 7,079 December 16, 2019 December 31, 2019 January 15, 2020 $ 0.5625 $ 7,079
Class C Perpetual Preferred Units
Equity
Schedule of distributions declared	The following table summarizes distributions declared on our Class C Preferred Units during the last three quarters: Amount Paid to Class C Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) June 14, 2019 July 1, 2019 July 15, 2019 $ 0.5949 $ 1,071 September 16, 2019 October 1, 2019 October 15, 2019 $ 0.6016 $ 1,083 December 16, 2019 December 31, 2019 January 15, 2020 $ 0.6016 $ 1,083
Class D Preferred Units
Equity
Schedule of distributions declared	The following table summarizes distributions declared on our Class D Preferred Units during the last two quarters: Amount Paid to Class D Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) October 23, 2019 November 7, 2019 November 14, 2019 $ 11.25 $ 4,450 January 23, 2020 February 7, 2020 February 14, 2020 $ 11.25 $ 6,075

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	9 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of estimated fair value measurements of assets and liabilities	The following table summarizes the estimated fair values of our commodity derivative assets and liabilities reported in our unaudited condensed consolidated balance sheet at the dates indicated: December 31, 2019 March 31, 2019 Derivative Derivative Derivative Derivative (in thousands) Level 1 measurements $ 3,671 $ (9,877 ) $ 3,754 $ (1,349 ) Level 2 measurements 8,819 (5,469 ) 8,882 (5,119 ) 12,490 (15,346 ) 12,636 (6,468 ) Netting of counterparty contracts (1) (3,824 ) 3,824 (1,577 ) 1,577 Net cash collateral provided (held) 14,460 6,105 1,740 (208 ) Commodity derivatives $ 23,126 $ (5,417 ) $ 12,799 $ (5,099 ) (1) Relates to commodity derivative assets and liabilities that are expected to be net settled on an exchange or through a netting arrangement with the counterparty. Our physical contracts that do not qualify as normal purchase normal sale transactions are not subject to such netting arrangements.
Schedule of location of commodity derivative assets and liabilities reported in the unaudited condensed consolidated balance sheets	The following table summarizes the accounts that include our commodity derivative assets and liabilities in our unaudited condensed consolidated balance sheets at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Prepaid expenses and other current assets $ 23,126 $ 12,799 Accrued expenses and other payables (5,353 ) (4,960 ) Other noncurrent liabilities (64 ) (139 ) Net commodity derivative asset $ 17,709 $ 7,700
Summary of open commodity derivative contract positions	The following table summarizes our open commodity derivative contract positions at the dates indicated. We do not account for these derivatives as hedges. Contracts Settlement Period Net Long Fair Value (in thousands) At December 31, 2019: Crude oil fixed-price (1) January 2020–December 2020 (4,359 ) $ (5,330 ) Propane fixed-price (1) January 2020–March 2021 271 (1,332 ) Refined products fixed-price (1) January 2020–January 2021 (327 ) (1,103 ) Other January 2020–March 2022 4,909 (2,856 ) Net cash collateral provided 20,565 Net commodity derivative asset $ 17,709 At March 31, 2019: Crude oil fixed-price (1) April 2019–December 2020 (1,961 ) 979 Propane fixed-price (1) April 2019–March 2020 198 608 Refined products fixed-price (1) April 2019–January 2021 (177 ) 376 Other April 2019–March 2022 4,205 6,168 Net cash collateral provided 1,532 Net commodity derivative asset $ 7,700 (1) We may have fixed price physical purchases, including inventory, offset by floating price physical sales or floating price physical purchases offset by fixed price physical sales. These contracts are derivatives we have entered into as an economic hedge against the risk of mismatches between fixed and floating price physical obligations. Amounts as of December 31, 2019 and March 31, 2019 in the tables above do not include commodity derivative contract positions related to Mid-Con and Gas Blending, as these amounts have been classified as current and noncurrent assets and liabilities held for sale within our December 31, 2019 and March 31, 2019 unaudited condensed consolidated balance sheets (see Note 16 ). Amounts as of March 31, 2019 in the tables above do not include commodity derivative contract positions related to TPSL, as these amounts have been classified as current assets and liabilities held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).
Schedule of fair value estimates of fixed-rate notes	The following table provides fair value estimates of our fixed-rate notes at December 31, 2019 (in thousands): Senior Unsecured Notes: 2023 Notes $ 608,272 2025 Notes $ 366,273 2026 Notes $ 436,478

Segments (Tables)

Segments (Tables)	9 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Schedule of certain information related to results of operations by segment	The following table summarizes revenues related to our segments. Transactions between segments are recorded based on prices negotiated between the segments. The “Corporate and Other” category in the table below includes certain corporate expenses that are not allocated to the reportable segments. Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Revenues: Crude Oil Logistics: Topic 606 revenues Crude oil sales $ 646,296 $ 718,621 $ 1,925,039 $ 2,300,703 Crude oil transportation and other 44,613 40,003 127,767 107,032 Non-Topic 606 revenues 3,585 2,909 10,825 9,291 Elimination of intersegment sales (3,505 ) (10,353 ) (15,330 ) (21,962 ) Total Crude Oil Logistics revenues 690,989 751,180 2,048,301 2,395,064 Water Solutions: Topic 606 revenues Disposal service fees 94,218 55,470 226,635 167,573 Sale of recovered hydrocarbons 16,470 17,337 45,566 56,063 Freshwater revenues 5,634 651 9,737 1,939 Other service revenues 5,285 1,986 12,701 5,753 Non-Topic 606 revenues — 14 — 39 Total Water Solutions revenues 121,607 75,458 294,639 231,367 Liquids: Topic 606 revenues Propane sales 309,668 372,224 564,820 793,605 Butane sales 226,730 222,412 396,776 481,459 Other product sales 145,082 151,246 376,148 471,547 Service revenues 5,181 7,616 22,230 17,509 Non-Topic 606 revenues 5,506 6,314 14,658 16,506 Elimination of intersegment sales (6,542 ) (10,379 ) (12,851 ) (20,854 ) Total Liquids revenues 685,625 749,433 1,361,781 1,759,772 Refined Products and Renewables: Topic 606 revenues Refined products sales 627,590 650,780 1,942,146 1,944,959 Non-Topic 606 revenues 100,438 68,199 255,090 233,775 Total Refined Products and Renewables revenues 728,028 718,979 2,197,236 2,178,734 Corporate and Other: Non-Topic 606 revenues 280 319 799 1,066 Total Corporate and Other revenues 280 319 799 1,066 Total revenues $ 2,226,529 $ 2,295,369 $ 5,902,756 $ 6,566,003 The following tables summarize depreciation and amortization expense (including amortization expense recorded within interest expense, cost of sales and operating expenses in Note 7 and Note 8 ) and operating income (loss) by segment for the periods indicated. Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Depreciation and Amortization: Crude Oil Logistics $ 17,950 $ 18,387 $ 53,228 $ 56,566 Water Solutions 48,184 27,561 114,438 79,212 Liquids 6,833 6,449 20,718 19,449 Refined Products and Renewables 197 233 578 699 Corporate and Other 3,752 2,975 9,651 9,340 Total depreciation and amortization $ 76,916 $ 55,605 $ 198,613 $ 165,266 Operating Income (Loss): Crude Oil Logistics $ 28,696 $ 32,022 $ 101,018 $ (36,694 ) Water Solutions (583 ) 86,737 34,380 97,476 Liquids 64,084 21,532 80,965 34,913 Refined Products and Renewables 24,954 20,552 32,242 4,516 Corporate and Other (20,756 ) (16,394 ) (74,575 ) (69,176 ) Total operating income $ 96,395 $ 144,449 $ 174,030 $ 31,035
Schedule of additions to property, plant and equipment and intangible assets by segment	The following table summarizes additions to property, plant and equipment and intangible assets by segment for the periods indicated. This information has been prepared on the accrual basis, and includes property, plant and equipment and intangible assets acquired in acquisitions. The information below does not include goodwill by segment. Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Crude Oil Logistics $ 4,953 $ 6,169 $ 23,817 $ 21,701 Water Solutions 692,826 115,928 1,838,237 463,423 Liquids 2,641 357 13,465 1,738 Refined Products and Renewables — — 224 — Corporate and Other 2,427 248 5,485 846 Total $ 702,847 $ 122,702 $ 1,881,228 $ 487,708
Schedule of long-lived assets (consisting of property, plant and equipment, intangible assets, operating lease right-of-use assets and goodwill) and total assets by segment	The following tables summarize long-lived assets (consisting of property, plant and equipment, intangible assets, operating lease right-of-use assets and goodwill) and total assets by segment at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Long-lived assets, net: Crude Oil Logistics $ 1,581,887 $ 1,584,636 Water Solutions 3,523,877 1,600,836 Liquids (1) 616,602 498,767 Refined Products and Renewables 38,790 29,477 Corporate and Other 33,707 26,569 Total $ 5,794,863 $ 3,740,285 (1) Includes $28.9 million and $0.5 million of non-US long-lived assets at December 31, 2019 and March 31, 2019 , respectively. December 31, 2019 March 31, 2019 (in thousands) Total assets: Crude Oil Logistics $ 2,155,695 $ 2,237,612 Water Solutions 3,676,248 1,668,292 Liquids (1) 967,024 721,008 Refined Products and Renewables 264,468 383,026 Corporate and Other 84,027 77,019 Assets held for sale 95,093 815,536 Total $ 7,242,555 $ 5,902,493 (1) Includes $48.7 million and $12.0 million of non-US total assets at December 31, 2019 and March 31, 2019 , respectively. The tables above do not include amounts related to Mid-Con, Gas Blending, TPSL and our former Retail Propane segment, as these amounts have been classified within discontinued operations in our unaudited condensed consolidated statements of operations and held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet and December 31, 2019 balance sheet for Mid-Con and Gas Blending (see Note 16 ).

Transactions with Affiliates (T

Transactions with Affiliates (Tables)	9 Months Ended
	Dec. 31, 2019
Related Party Transactions [Abstract]
Summary of purchase and sale transactions of products and services	The following table summarizes these related party transactions for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Sales to WPX $ 13,888 $ 8,779 $ 36,716 $ 18,550 Purchases from WPX (1) $ 81,578 $ 91,391 $ 247,745 $ 248,718 Sales to SemGroup $ 257 $ 458 $ 926 Purchases from SemGroup $ — $ — $ 1,337 Sales to entities affiliated with management $ 3,642 $ 4,691 $ 5,362 $ 10,336 Purchases from entities affiliated with management $ 953 $ 675 $ 3,068 $ 2,481 Purchases from equity method investees $ 188 $ — $ 317 $ — (1) Amount primarily relates to purchases of crude oil under the definitive agreement we signed with WPX.
Schedule of accounts receivable from affiliates	Accounts receivable from affiliates consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Receivables from NGL Energy Holdings LLC $ 8,332 $ 7,277 Receivables from WPX 3,573 5,185 Receivables from SemGroup 71 Receivables from entities affiliated with management 540 334 Total $ 12,445 $ 12,867
Schedule of accounts payable to affiliates	Accounts payable to affiliates consist of the following at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Payables to WPX $ 28,509 $ 27,844 Payables to entities affiliated with management 629 625 Payables to equity method investees 236 — Total $ 29,374 $ 28,469

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Tables)	9 Months Ended
	Dec. 31, 2019
Revenue from Contract with Customer [Abstract]
Schedule of amount and timing of remaining performance obligation	The following table summarizes the amount and timing of revenue recognition for such contracts at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 69,796 2021 217,453 2022 208,223 2023 202,046 2024 171,541 Thereafter 305,061 Total $ 1,174,120
Schedule of contract assets and liabilities	The following tables summarize the balances of our contract assets and liabilities at the dates indicated: Balance at March 31, 2019 December 31, 2019 (in thousands) Accounts receivable from contracts with customers $ 613,827 $ 602,350 Contract liabilities at March 31, 2019 $ 8,461 Payment received and deferred 49,098 Payment recognized in revenue (27,566 ) Contract liabilities at December 31, 2019 $ 29,993 Amounts as of March 31, 2019 in the tables above do not include contract assets and liabilities related to TPSL, as these amounts have been classified as current assets and current liabilities held for sale within our March 31, 2019 unaudited condensed consolidated balance sheet (see Note 16 ).

Leases (Tables)

Leases (Tables)	9 Months Ended
	Dec. 31, 2019
Leases [Abstract]
Schedule of components of lease expense	The following table summarizes the components of our lease expense for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2019 (in thousands) Operating lease cost $ 22,320 $ 66,707 Variable lease cost 6,170 11,835 Short-term lease cost 219 478 Total lease cost $ 28,709 $ 79,020 Amounts in the table above do not include lease expense related to TPSL and Gas Blending, as these amounts have been classified within discontinued operations within our unaudited condensed consolidated statements of operations (see Note 16 ).
Schedule of maturities of operating lease liabilities	The following table summarizes maturities of our operating lease liabilities at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 17,154 2021 60,126 2022 41,674 2023 28,974 2024 17,139 Thereafter 59,910 Total lease payments 224,977 Less imputed interest (45,088 ) Total operating lease liabilities $ 179,889
Schedule of future minimum lease payments under contractual commitments	The following table summarizes future minimum lease payments under various noncancelable operating lease agreements at March 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 $ 78,348 2021 60,417 2022 43,259 2023 29,252 2024 18,341 Thereafter 41,845 Total $ 271,462 Amounts in the table above do not include future minimum lease payments related to Mid-Con, Gas Blending and TPSL, which have been classified as discontinued operations in our unaudited condensed consolidated statements of operations (see Note 16 ).
Schedule of supplemental cash flow and non-cash information for operating leases	The following table summarizes supplemental cash flow and non-cash information related to our operating leases for the period indicated: Nine Months Ended December 31, 2019 (in thousands) Cash paid for amounts included in the measurement of operating lease liabilities $ 81,779 Operating lease right-of-use assets obtained in exchange for operating lease obligations $ 584,538
Schedule of future minimum lease payments receivable under contractual commitments	The following table summarizes future minimum lease payments receivable under various noncancelable operating lease agreements at December 31, 2019 (in thousands): Fiscal Year Ending March 31, 2020 (three months) $ 4,814 2021 16,190 2022 6,634 2023 5,387 2024 5,057 Thereafter 16,282 Total $ 54,364

Assets and Liabilities Held f_2

Assets and Liabilities Held for Sale and Discontinued Operations (Tables)	9 Months Ended
	Dec. 31, 2019
Discontinued Operations and Disposal Groups [Abstract]
Assets and Liabilities Held for Sale and Discontinued Operations	The following table summarizes the major classes of assets and liabilities of Mid-Con, Gas Blending and TPSL classified as held for sale at the dates indicated: December 31, 2019 March 31, 2019 (in thousands) Current Assets Held for Sale Accounts receivable-trade, net $ — $ 164,716 Inventories 44,500 327,015 Operating lease right-of-use assets 19,873 — Prepaid expenses and other current assets 28,027 89,254 Goodwill 2,693 — Total current assets held for sale 95,093 580,985 Noncurrent Assets Held for Sale Property, plant and equipment, net — 15,553 Goodwill — 35,405 Intangible assets, net — 137,446 Other noncurrent assets (1) — 46,147 Total noncurrent assets held for sale — 234,551 Total assets held for sale $ 95,093 $ 815,536 Current Liabilities Held for Sale Accounts payable-trade $ — $ 85,602 Accrued expenses and other payables 21,026 140,691 Advance payments received from customers — 460 Operating lease obligations 19,873 — Total current liabilities held for sale 40,899 226,753 Noncurrent Liabilities Held for Sale Other noncurrent liabilities — 33 Total noncurrent liabilities held for sale — 33 Total liabilities held for sale $ 40,899 $ 226,786 (1) Primarily comprised of tank bottoms, which are product volumes required for the operation of storage tanks, that are recorded at historical cost. We recover tank bottoms when the storage tanks are removed from service. At March 31, 2019 , tank bottoms held in third party terminals consisted of 389,737 barrels of refined products. Tank bottoms held in terminals we own are included within property, plant and equipment. The following table summarizes the results of operations from discontinued operations for the periods indicated: Three Months Ended December 31, Nine Months Ended December 31, 2019 2018 2019 2018 (in thousands) Revenues $ 1,938,398 $ 4,081,451 $ 10,493,630 $ 12,380,744 Cost of sales 1,936,324 4,065,723 10,497,492 12,310,152 Operating expenses 397 2,587 5,898 34,572 General and administrative expense — 20 53 2,699 Depreciation and amortization — 153 749 9,164 Loss (gain) on disposal or impairment of assets, net (1) 7,791 (263 ) 182,240 (407,646 ) Operating (loss) income from discontinued operations (6,114 ) 13,231 (192,802 ) 431,803 Equity in earnings of unconsolidated entities — — — 1,183 Interest expense (1 ) — (111 ) (126 ) Other income, net — 105 133 773 (Loss) income from discontinued operations before taxes (2) (6,115 ) 13,336 (192,780 ) 433,633 Income tax expense — (7 ) (20 ) (132 ) (Loss) income from discontinued operations, net of tax $ (6,115 ) $ 13,329 $ (192,800 ) $ 433,501 (1) Amount for the nine months ended December 31, 2019 includes a loss of $181.2 million on the sale of TPSL and a loss of $1.0 million on the sale of virtually all of our remaining Retail Propane segment to Superior on July 10, 2018. Amount for the nine months ended December 31, 2018 includes a gain of $408.9 million on the sale of virtually all of our remaining Retail Propane segment to Superior on July 10, 2018, partially offset by a loss of $1.3 million on the sale of a portion of our Retail Propane segment to DCC on March 30, 2018 related to a working capital adjustment. (2) Amount includes a loss attributable to redeemable noncontrolling interests of $0.4 million for the nine months ended December 31, 2018 .

Unaudited Condensed Consolida_7

Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information (Tables)	9 Months Ended
	Dec. 31, 2019
Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information [Abstract]
Schedule of Unaudited Condensed Consolidating Balance Sheets	Unaudited Condensed Consolidating Balance Sheet (in Thousands) December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated ASSETS CURRENT ASSETS: Cash and cash equivalents $ 182,635 $ — $ (174,771 ) $ 4,144 $ — $ 12,008 Accounts receivable-trade, net of allowance for doubtful accounts — — 947,307 227 — 947,534 Accounts receivable-affiliates — — 12,445 — — 12,445 Inventories — — 182,977 761 — 183,738 Prepaid expenses and other current assets — — 90,239 455 — 90,694 Assets held for sale — — 95,093 — — 95,093 Total current assets 182,635 — 1,153,290 5,587 — 1,341,512 PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation — — 2,510,670 193,442 — 2,704,112 GOODWILL — — 1,301,880 5,175 — 1,307,055 INTANGIBLE ASSETS, net of accumulated amortization — — 1,530,120 70,435 — 1,600,555 INVESTMENTS IN UNCONSOLIDATED ENTITIES — — 22,236 — — 22,236 NET INTERCOMPANY RECEIVABLES (PAYABLES) 1,768,795 — (1,699,213 ) (69,582 ) — — INVESTMENTS IN CONSOLIDATED SUBSIDIARIES 2,019,081 — 123,793 — (2,142,874 ) — OPERATING LEASE RIGHT-OF-USE ASSETS — — 178,607 4,534 — 183,141 OTHER NONCURRENT ASSETS — — 83,944 — — 83,944 Total assets $ 3,970,511 $ — $ 5,205,327 $ 209,591 $ (2,142,874 ) $ 7,242,555 LIABILITIES AND EQUITY CURRENT LIABILITIES: Accounts payable-trade $ — $ — $ 846,667 $ 100 $ — $ 846,767 Accounts payable-affiliates 1 — 29,373 — — 29,374 Accrued expenses and other payables 30,537 — 321,126 1,185 — 352,848 Advance payments received from customers — — 27,108 2,885 — 29,993 Current maturities of long-term debt — — 4,835 — — 4,835 Operating lease obligations — — 56,747 344 — 57,091 Liabilities held for sale — — 40,899 — — 40,899 Total current liabilities 30,538 — 1,326,755 4,514 — 1,361,807 LONG-TERM DEBT, net of debt issuance costs and current maturities 1,429,027 — 1,639,178 — — 3,068,205 OPERATING LEASE OBLIGATIONS — — 118,847 3,951 — 122,798 OTHER NONCURRENT LIABILITIES — — 101,466 2,594 — 104,060 CLASS D 9.00% PREFERRED UNITS 531,768 — — — — 531,768 EQUITY: Partners’ equity 1,979,178 — 2,019,081 198,780 (2,217,613 ) 1,979,426 Accumulated other comprehensive loss — — — (248 ) — (248 ) Noncontrolling interests — — — — 74,739 74,739 Total equity 1,979,178 — 2,019,081 198,532 (2,142,874 ) 2,053,917 Total liabilities and equity $ 3,970,511 $ — $ 5,205,327 $ 209,591 $ (2,142,874 ) $ 7,242,555 Unaudited Condensed Consolidating Balance Sheet (in Thousands) March 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated ASSETS CURRENT ASSETS: Cash and cash equivalents $ 12,798 $ — $ 3,728 $ 2,046 $ — $ 18,572 Accounts receivable-trade, net of allowance for doubtful accounts — — 996,192 2,011 — 998,203 Accounts receivable-affiliates — — 12,867 — — 12,867 Inventories — — 135,094 1,034 — 136,128 Prepaid expenses and other current assets — — 65,443 475 — 65,918 Assets held for sale — — 580,985 — — 580,985 Total current assets 12,798 — 1,794,309 5,566 — 1,812,673 PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation — — 1,620,084 208,856 — 1,828,940 GOODWILL — — 1,105,281 5,175 — 1,110,456 INTANGIBLE ASSETS, net of accumulated amortization — — 725,542 75,347 — 800,889 INVESTMENTS IN UNCONSOLIDATED ENTITIES — — 1,127 — — 1,127 NET INTERCOMPANY RECEIVABLES (PAYABLES) 862,186 — (808,610 ) (53,576 ) — — INVESTMENTS IN CONSOLIDATED SUBSIDIARIES 2,503,848 — 170,690 — (2,674,538 ) — OTHER NONCURRENT ASSETS — — 113,857 — — 113,857 ASSETS HELD FOR SALE — — 234,551 — — 234,551 Total assets $ 3,378,832 $ — $ 4,956,831 $ 241,368 $ (2,674,538 ) $ 5,902,493 LIABILITIES AND EQUITY CURRENT LIABILITIES: Accounts payable-trade $ — $ — $ 872,122 $ 6,941 $ — $ 879,063 Accounts payable-affiliates 1 — 28,468 — — 28,469 Accrued expenses and other payables 25,497 — 80,765 1,497 — 107,759 Advance payments received from customers — — 7,550 911 — 8,461 Current maturities of long-term debt — — 648 — — 648 Liabilities held for sale — — 226,753 — — 226,753 Total current liabilities 25,498 — 1,216,306 9,349 — 1,251,153 LONG-TERM DEBT, net of debt issuance costs and current maturities 984,450 — 1,175,683 — — 2,160,133 OTHER NONCURRENT LIABILITIES — — 60,961 2,581 — 63,542 NONCURRENT LIABILITIES HELD FOR SALE — — 33 — — 33 CLASS A 10.75% CONVERTIBLE PREFERRED UNITS 149,814 — — — — 149,814 EQUITY: Partners’ equity 2,219,070 — 2,503,848 229,693 (2,733,286 ) 2,219,325 Accumulated other comprehensive loss — — — (255 ) — (255 ) Noncontrolling interests — — — — 58,748 58,748 Total equity 2,219,070 — 2,503,848 229,438 (2,674,538 ) 2,277,818 Total liabilities and equity $ 3,378,832 $ — $ 4,956,831 $ 241,368 $ (2,674,538 ) $ 5,902,493
Schedule of Unaudited Condensed Consolidating Statements of Operations	Unaudited Condensed Consolidating Statement of Operations (in Thousands) Three Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 2,223,900 $ 5,127 $ (2,498 ) $ 2,226,529 COST OF SALES — — 1,937,767 36 (2,331 ) 1,935,472 OPERATING COSTS AND EXPENSES: Operating — — 92,180 2,399 (167 ) 94,412 General and administrative — — 28,952 198 — 29,150 Depreciation and amortization — — 70,396 3,330 — 73,726 Gain on disposal or impairment of assets, net — — (12,626 ) — — (12,626 ) Revaluation of liabilities — — 10,000 — — 10,000 Operating Income (Loss) — — 97,231 (836 ) — 96,395 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 534 — — 534 Interest expense (26,664 ) — (20,241 ) (26 ) 11 (46,920 ) Other (expense) income, net — — (229 ) 14 (11 ) (226 ) (Loss) Income From Continuing Operations Before Income Taxes (26,664 ) — 77,295 (848 ) — 49,783 INCOME TAX EXPENSE — — (677 ) — — (677 ) EQUITY IN NET INCOME (LOSS) FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES 69,821 — (682 ) — (69,139 ) — Income (Loss) From Continuing Operations 43,157 — 75,936 (848 ) (69,139 ) 49,106 Loss From Discontinued Operations, Net of Tax — — (6,115 ) — — (6,115 ) Net Income (Loss) 43,157 — 69,821 (848 ) (69,139 ) 42,991 LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 166 166 NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ 43,157 $ — $ 69,821 $ (848 ) $ (68,973 ) $ 43,157 Unaudited Condensed Consolidating Statement of Operations (in Thousands) Three Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 2,292,268 $ 4,286 $ (1,185 ) $ 2,295,369 COST OF SALES — — 2,049,328 518 (1,185 ) 2,048,661 OPERATING COSTS AND EXPENSES: Operating — — 58,389 2,076 — 60,465 General and administrative — — 24,599 160 — 24,759 Depreciation and amortization — — 50,724 2,557 — 53,281 Gain on disposal or impairment of assets, net — — (36,246 ) — — (36,246 ) Operating Income (Loss) — — 145,474 (1,025 ) — 144,449 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 1,777 — — 1,777 Interest expense (24,026 ) — (15,124 ) (12 ) 11 (39,151 ) Loss on early extinguishment of liabilities, net (10,083 ) — — — — (10,083 ) Other income, net — — 1,198 — (11 ) 1,187 (Loss) Income From Continuing Operations Before Income Taxes (34,109 ) — 133,325 (1,037 ) — 98,179 INCOME TAX EXPENSE — — (980 ) — — (980 ) EQUITY IN NET INCOME (LOSS) FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES 144,944 — (730 ) — (144,214 ) — Income (Loss) From Continuing Operations 110,835 — 131,615 (1,037 ) (144,214 ) 97,199 Income From Discontinued Operations, Net of Tax — — 13,329 — — 13,329 Net Income (Loss) 110,835 — 144,944 (1,037 ) (144,214 ) 110,528 LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 307 307 NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ 110,835 $ — $ 144,944 $ (1,037 ) $ (143,907 ) $ 110,835 Unaudited Condensed Consolidating Statement of Operations (in Thousands) Nine Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 5,869,693 $ 38,501 $ (5,438 ) $ 5,902,756 COST OF SALES — — 5,218,841 535 (4,771 ) 5,214,605 OPERATING COSTS AND EXPENSES: Operating — — 217,662 13,615 (667 ) 230,610 General and administrative — — 92,730 670 — 93,400 Depreciation and amortization — — 180,630 9,963 — 190,593 Gain on disposal or impairment of assets, net — — (10,478 ) (4 ) — (10,482 ) Revaluation of liabilities — — 10,000 — — 10,000 Operating Income — — 160,308 13,722 — 174,030 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 277 — — 277 Interest expense (79,119 ) — (52,680 ) (49 ) 34 (131,814 ) Other income, net — — 947 54 (34 ) 967 (Loss) Income From Continuing Operations Before Income Taxes (79,119 ) — 108,852 13,727 — 43,460 INCOME TAX EXPENSE — — (996 ) — — (996 ) EQUITY IN NET (LOSS) INCOME FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES (70,654 ) — 14,290 — 56,364 — (Loss) Income From Continuing Operations (149,773 ) — 122,146 13,727 56,364 42,464 Loss From Discontinued Operations, Net of Tax — — (192,800 ) — — (192,800 ) Net (Loss) Income (149,773 ) — (70,654 ) 13,727 56,364 (150,336 ) LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 563 563 NET (LOSS) INCOME ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ (149,773 ) $ — $ (70,654 ) $ 13,727 $ 56,927 $ (149,773 ) Unaudited Condensed Consolidating Statement of Operations (in Thousands) Nine Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated REVENUES $ — $ — $ 6,558,089 $ 10,768 $ (2,854 ) $ 6,566,003 COST OF SALES — — 6,049,032 495 (2,854 ) 6,046,673 OPERATING COSTS AND EXPENSES: Operating — — 166,013 6,206 — 172,219 General and administrative — — 85,737 691 — 86,428 Depreciation and amortization — — 150,093 7,678 — 157,771 Loss on disposal or impairment of assets, net — — 71,077 — — 71,077 Revaluation of liabilities — — 800 — — 800 Operating Income (Loss) — — 35,337 (4,302 ) — 31,035 OTHER INCOME (EXPENSE): Equity in earnings of unconsolidated entities — — 2,375 — — 2,375 Interest expense (83,011 ) — (43,764 ) (35 ) 34 (126,776 ) Loss on early extinguishment of liabilities, net (10,220 ) — — — — (10,220 ) Other expense, net — — (31,196 ) — (219 ) (31,415 ) Loss From Continuing Operations Before Income Taxes (93,231 ) — (37,248 ) (4,337 ) (185 ) (135,001 ) INCOME TAX EXPENSE — — (2,322 ) — — (2,322 ) EQUITY IN NET INCOME (LOSS) FROM CONTINUING OPERATIONS OF CONSOLIDATED SUBSIDIARIES 391,025 — (3,750 ) — (387,275 ) — Income (Loss) From Continuing Operations 297,794 — (43,320 ) (4,337 ) (387,460 ) (137,323 ) Income (Loss) From Discontinued Operations, Net of Tax — — 434,345 (1,029 ) 185 433,501 Net Income (Loss) 297,794 — 391,025 (5,366 ) (387,275 ) 296,178 LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS 1,170 1,170 LESS: NET LOSS ATTRIBUTABLE TO REDEEMABLE NONCONTROLLING INTERESTS 446 446 NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP $ 297,794 $ — $ 391,025 $ (5,366 ) $ (385,659 ) $ 297,794
Schedule of Unaudited Condensed Consolidating Statements of Comprehensive Income (Loss)	Unaudited Condensed Consolidating Statements of Comprehensive Income (Loss) (in Thousands) Three Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net income (loss) $ 43,157 $ — $ 69,821 $ (848 ) $ (69,139 ) $ 42,991 Other comprehensive (los s) income — — (1 ) 17 — 16 Comprehensive income (loss) $ 43,157 $ — $ 69,820 $ (831 ) $ (69,139 ) $ 43,007 Three Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net income (loss) $ 110,835 $ — $ 144,944 $ (1,037 ) $ (144,214 ) $ 110,528 Other comprehensive loss — — — (3 ) — (3 ) Comprehensive income (loss) $ 110,835 $ — $ 144,944 $ (1,040 ) $ (144,214 ) $ 110,525 Nine Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net (loss) income $ (149,773 ) $ — $ (70,654 ) $ 13,727 $ 56,364 $ (150,336 ) Other comprehensive inco me (loss) — — 17 (10 ) — 7 Comprehensive (loss) income $ (149,773 ) $ — $ (70,637 ) $ 13,717 $ 56,364 $ (150,329 ) Nine Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Consolidated Net income (loss) $ 297,794 $ — $ 391,025 $ (5,366 ) $ (387,275 ) $ 296,178 Other comprehensive loss — — (1 ) (26 ) — (27 ) Comprehensive income (loss) $ 297,794 $ — $ 391,024 $ (5,392 ) $ (387,275 ) $ 296,151
Schedule of Unaudited Condensed Consolidating Statements of Cash Flows	Unaudited Condensed Consolidating Statement of Cash Flows (in Thousands) Nine Months Ended December 31, 2019 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidated OPERATING ACTIVITIES: Net cash (used in) provided by operating activities-continuing operations $ (74,889 ) $ — $ 308,905 $ 39,572 $ 273,588 Net cash provided by operating activities-discontinued operations — — 59,890 — 59,890 Net cash (used in) provided by operating activities (74,889 ) — 368,795 39,572 333,478 INVESTING ACTIVITIES: Capital expenditures — — (380,050 ) (47,203 ) (427,253 ) Acquisitions, net of cash acquired — — (1,262,853 ) — (1,262,853 ) Net settlements of commodity derivatives — — 2,735 — 2,735 Proceeds from sales of assets — — 17,052 4 17,056 Investments in unconsolidated entities — — (21,272 ) — (21,272 ) Distributions of capital from unconsolidated entities — — 440 — 440 Repayments on loan for natural gas liquids facility — — 3,022 — 3,022 Net cash used in investing activities-continuing operations — — (1,640,926 ) (47,199 ) (1,688,125 ) Net cash provided by investing activities-discontinued operations — — 281,908 — 281,908 Net cash used in investing activities — — (1,359,018 ) (47,199 ) (1,406,217 ) FINANCING ACTIVITIES: Proceeds from borrowings under Revolving Credit Facility — — 3,461,000 — 3,461,000 Payments on Revolving Credit Facility — — (3,240,000 ) — (3,240,000 ) Issuance of senior unsecured notes and term credit agreement 450,000 — 250,000 — 700,000 Payments on other long-term debt — — (489 ) — (489 ) Debt issuance costs (8,034 ) — (5,164 ) — (13,198 ) Distributions to general and common unit partners and preferred unitholders (180,021 ) — — — (180,021 ) Distributions to noncontrolling interest owners — — — (570 ) (570 ) Proceeds from sale of preferred units, net of offering costs 622,965 — — — 622,965 Payments for redemption of preferred units (265,128 ) — — — (265,128 ) Common unit repurchases and cancellations (1,205 ) — — — (1,205 ) Payments for settlement and early extinguishment of liabilities — — (1,953 ) — (1,953 ) Investment in NGL Energy Holdings LLC (15,226 ) — — — (15,226 ) Net changes in advances with consolidated entities (358,625 ) — 348,330 10,295 — Net cash provided by financing activities 244,726 — 811,724 9,725 1,066,175 Net increase (decrease) in cash and cash equivalents 169,837 — (178,499 ) 2,098 (6,564 ) Cash and cash equivalents, beginning of period 12,798 — 3,728 2,046 18,572 Cash and cash equivalents, end of period $ 182,635 $ — $ (174,771 ) $ 4,144 $ 12,008 Unaudited Condensed Consolidating Statement of Cash Flows (in Thousands) Nine Months Ended December 31, 2018 NGL Energy NGL Energy Guarantor Non-Guarantor Consolidating Adjustments Consolidated OPERATING ACTIVITIES: Net cash (used in) provided by operating activities-continuing operations $ (92,619 ) $ — $ 92,240 $ 3,759 $ (185 ) $ 3,195 Net cash provided by operating activities-discontinued operations — — 109,242 3,221 — 112,463 Net cash (used in) provided by operating activities (92,619 ) — 201,482 6,980 (185 ) 115,658 INVESTING ACTIVITIES: Capital expenditures — — (301,883 ) (2,106 ) — (303,989 ) Acquisitions, net of cash acquired — — (194,044 ) (3,927 ) — (197,971 ) Net settlements of commodity derivatives — — 5,066 — — 5,066 Proceeds from sales of assets — — 8,335 — — 8,335 Proceeds from divestitures of businesses and investments, net — — 103,594 — — 103,594 Investments in unconsolidated entities — — (92 ) — — (92 ) Repayments on loan for natural gas liquids facility — — 8,371 — — 8,371 Loan to affiliate — — (1,515 ) — — (1,515 ) Net cash used in investing activities-continuing operations — — (372,168 ) (6,033 ) — (378,201 ) Net cash provided by investing activities-discontinued operations — — 929,709 6,982 — 936,691 Net cash provided by investing activities — — 557,541 949 — 558,490 FINANCING ACTIVITIES: Proceeds from borrowings under Revolving Credit Facility — — 2,956,500 — — 2,956,500 Payments on Revolving Credit Facility — — (3,037,000 ) — — (3,037,000 ) Repayment and repurchase of senior unsecured notes (395,471 ) — — — — (395,471 ) Payments on other long-term debt — — (488 ) — — (488 ) Debt issuance costs (16 ) — (899 ) — — (915 ) Contributions from noncontrolling interest owners, net — — — 169 — 169 Distributions to general and common unit partners and preferred unitholders (177,003 ) — — — — (177,003 ) Repurchase of warrants (14,988 ) — — — — (14,988 ) Common unit repurchases and cancellations (162 ) — — — — (162 ) Payments for settlement and early extinguishment of liabilities — — (3,534 ) — — (3,534 ) Net changes in advances with consolidated entities 669,236 — (661,753 ) (7,668 ) 185 — Net cash provided by (used in) financing activities-continuing operations 81,596 — (747,174 ) (7,499 ) 185 (672,892 ) Net cash used in financing activities-discontinued operations — — (295 ) (30 ) — (325 ) Net cash provided by (used in) financing activities 81,596 — (747,469 ) (7,529 ) 185 (673,217 ) Net (decrease) increase in cash and cash equivalents (11,023 ) — 11,554 400 — 931 Cash and cash equivalents, beginning of period 16,915 — 3,329 1,850 — 22,094 Cash and cash equivalents, end of period $ 5,892 $ — $ 14,883 $ 2,250 $ — $ 23,025

Organization and Operations (De

Organization and Operations (Details) $ in Thousands	Sep. 30, 2019USD ($)terminal	Jul. 10, 2018USD ($)	Dec. 31, 2019USD ($)terminal	Dec. 31, 2018USD ($)	Sep. 30, 2018
Organization and operations
Proceeds from divestitures of businesses and investments, net | $			$ 0	$ 103,594
Ownership interest					50.00%
Liquids
Organization and operations
Number of owned terminals | terminal			27
Retail Propane Segment - East
Organization and operations
Proceeds from divestitures of businesses and investments, net | $		$ 889,800
TransMontaigne Product Services, LLC | Refined products and renewables
Organization and operations
Number of owned terminals | terminal	2
Proceeds from divestitures of businesses and investments, net | $	$ 233,800
Number of terminals to be utilized | terminal	19

Significant Accounting Polici_4

Significant Accounting Policies - Income Taxes (Details) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Accounting Policies [Abstract]
Deferred tax liability	$ 51.3	$ 51.3
Increase in deferred tax liability	$ 38.7
Deferred tax benefit		$ 1.4
Effective tax rate		25.10%

Significant Accounting Polici_5

Significant Accounting Policies - Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Inventories
Crude oil	$ 48,901	$ 51,359
Natural gas liquids:
Propane	68,144	33,478
Butane	37,134	15,294
Other	11,506	7,482
Refined products and renewables:
Diesel	10,474	9,186
Ethanol	1,668	14,650
Biodiesel	5,911	4,679
Total	$ 183,738	$ 136,128

Significant Accounting Polici_6

Significant Accounting Policies - Investments in Unconsolidated Entities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018
Investments in Unconsolidated Entities
Ownership interest				50.00%
Carrying value	$ 22,236		$ 1,127
Water Services And Land Company No. 1 | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 15,624		0
Water Services And Land Company No. 2 | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 2,067		0
Water Services And Land Company No. 3 | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	10.00%
Carrying value	$ 3,247		0
Aircraft Company | Corporate and other | Operating segment
Investments in Unconsolidated Entities
Carrying value	$ 638		0
Water Services Company | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 480		920
Natural Gas Liquids Terminal Company | Liquids | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 180		$ 207
KAIR2014 LLC | Aircraft Company | Corporate and other | Operating segment
Investments in Unconsolidated Entities
Ownership interest		50.00%

Significant Accounting Polici_7

Significant Accounting Policies - Other Noncurrent Assets (Details) $ in Thousands	Oct. 24, 2019	Dec. 31, 2019USD ($)bbl	Mar. 31, 2019USD ($)bbl
Other Assets, Noncurrent [Abstract]
Loan receivable		$ 9,060	$ 19,474
Line fill		33,437	33,437
Minimum shipping fees - pipeline commitments, noncurrent		18,510	23,494
Other		22,937	37,452
Total		83,944	$ 113,857
Other Noncurrent Assets
Financing receivable, before allowance for credit loss		26,400
Financing receivable, before allowance for credit loss, current		$ 20,200
Number of contracts		1
Number of additional years to use deficiency credit	5 years 6 months
Minimum shipping fees - pipeline commitments		$ 22,800
Minimum shipping fees - pipeline commitments, current		$ 4,300
Crude oil
Other Noncurrent Assets
Number of barrels of product | bbl		335,069	335,069
Propane sales
Other Noncurrent Assets
Number of barrels of product | bbl		262,000	262,000

Significant Accounting Polici_8

Significant Accounting Policies - Accrued Expenses and Other Payables (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Accounting Policies [Abstract]
Accrued compensation and benefits	$ 17,940	$ 19,312
Excise and other tax liabilities	19,300	10,481
Derivative liabilities	5,353	4,960
Accrued interest	25,838	24,882
Product exchange liabilities	7,382	5,945
Gavilon legal matter settlement (Note 9)	0	12,500
Contingent consideration liability (Note 4)	200,000	0
TPSL Working Capital Settlement	41,508	0
Other	35,527	29,679
Total	$ 352,848	$ 107,759

Income (Loss) Per Common Unit_2

Income (Loss) Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Income (Loss) Per Common Unit
Income (loss) from continuing operations	$ 49,106	$ 97,199	$ 42,464	$ (137,323)
Less: Continuing operations loss attributable to noncontrolling interests	166	307	563	1,170
Net income (loss) from continuing operations attributable to NGL Energy Partners LP	49,272	97,506	43,027	(136,153)
Less: Distributions to preferred unitholders (1)	(20,312)	(29,748)	(166,835)	(73,882)
Less: Continuing operations net (income) loss allocated to general partner (2)	(65)	(102)	16	107
NET INCOME (LOSS) FROM CONTINUING OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	28,895	67,656	(123,792)	(209,928)
(Loss) income from discontinued operations, net of tax	(6,115)	13,329	(192,800)	433,501
Net loss attributable to redeemable noncontrolling interest	0	0	0	446
Less: Discontinued operations loss (income) allocated to general partner (2)	6	(13)	193	(434)
NET (LOSS) INCOME FROM DISCONTINUED OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	(6,109)	13,316	(192,607)	433,513
NET INCOME (LOSS) ALLOCATED TO COMMON UNITHOLDERS	$ 22,786	$ 80,972	$ (316,399)	$ 223,585
BASIC INCOME (LOSS) PER COMMON UNIT
Income (Loss) From Continuing Operations	$ 0.23	$ 0.54	$ (0.97)	$ (1.71)
(Loss) Income From Discontinued Operations, net of Tax	(0.05)	0.11	(1.52)	3.53
Net Income (Loss)	0.18	0.65	(2.49)	1.82
DILUTED INCOME (LOSS) PER COMMON UNIT
Income (Loss) From Continuing Operations	0.22	0.53	(0.97)	(1.71)
(Loss) Income From Discontinued Operations, net of Tax	(0.05)	0.11	(1.52)	3.53
Net Income (Loss)	$ 0.18	$ 0.64	$ (2.49)	$ 1.82
Basic weighted average common units outstanding (in units)	128,201,369	123,892,680	127,026,510	122,609,625
Diluted weighted average common units outstanding (in units)	129,358,590	125,959,751	127,026,510	122,609,625
Common units
BASIC INCOME (LOSS) PER COMMON UNIT
Income (Loss) From Continuing Operations	$ 0.23	$ 0.54	$ (0.97)	$ (1.71)
(Loss) Income From Discontinued Operations, net of Tax	(0.05)	0.11	(1.52)	3.53
Net Income (Loss)	0.18	0.65	(2.49)	1.82
DILUTED INCOME (LOSS) PER COMMON UNIT
Income (Loss) From Continuing Operations	0.22	0.53	(0.97)	(1.71)
(Loss) Income From Discontinued Operations, net of Tax	(0.05)	0.11	(1.52)	3.53
Net Income (Loss)	$ 0.18	$ 0.64	$ (2.49)	$ 1.82
Basic weighted average common units outstanding (in units)	128,201,369	123,892,680	127,026,510	122,609,625
Diluted weighted average common units outstanding (in units)	129,358,590	125,959,751	127,026,510	122,609,625
Warrant | Common units
DILUTED INCOME (LOSS) PER COMMON UNIT
Weighted average number of diluted units outstanding adjustment	0	1,456,947	0	0
Restricted units | Common units
DILUTED INCOME (LOSS) PER COMMON UNIT
Weighted average number of diluted units outstanding adjustment	1,157,221	610,124	0	0

Acquisitions - Hillstone (Detai

Acquisitions - Hillstone (Details) $ in Thousands	Oct. 31, 2019USD ($)bbl	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Mar. 31, 2019USD ($)
Fair Value of Assets Acquired and Liabilities Assumed
Goodwill		$ 1,307,055		$ 1,307,055		$ 1,110,456
REVENUES		2,226,529	$ 2,295,369	5,902,756	$ 6,566,003
Operating loss		96,395	$ 144,449	174,030	$ 31,035
Hillstone
Business Acquisition
Total consideration to acquire businesses	$ 642,500
Number of saltwater wells acquired	19
Permitted disposal capacity | bbl	580,000
Pipeline transportation capacity | bbl	680,000
Number of permits acquired	22
Unpermitted disposal capacity | bbl	660,000
Long-term acreage dedications | bbl	110,000
Fair Value of Assets Acquired and Liabilities Assumed
Current assets		35,171		35,171
Property, plant and equipment		144,803		144,803
Goodwill		113,939		113,939
Intangible assets		400,000		400,000
Investments in unconsolidated entities		335		335
Operating lease right-of-use assets		3,090		3,090
Other noncurrent assets		811		811
Assets held for sale		5,100		5,100
Current liabilities		(16,234)		(16,234)
Operating lease obligations		(3,090)		(3,090)
Other noncurrent liabilities		(1,448)		(1,448)
Deferred tax liability		(39,178)		(39,178)
Liabilities held for sale		(786)		(786)
Fair value of net assets acquired		$ 642,513		642,513
REVENUES				13,200
Operating loss				4,400
General and administrative expense				$ 12,000

Acquisitions - Mesquite (Detail

Acquisitions - Mesquite (Details) $ in Thousands	Jul. 02, 2019USD ($)facility	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Jan. 10, 2020USD ($)	Jan. 07, 2020	Mar. 31, 2019USD ($)
Business Acquisition
Preferred units issued, net of offering costs			$ 102,757	$ 42,638
Contingent consideration liability (Note 4)		$ 200,000				$ 200,000				$ 0
Fair Value of Assets Acquired and Liabilities Assumed
Goodwill		1,307,055				1,307,055				$ 1,110,456
REVENUES		2,226,529			$ 2,295,369	5,902,756	$ 6,566,003
Operating income		96,395			$ 144,449	174,030	$ 31,035
Mesquite
Business Acquisition
Number of saltwater wells acquired | facility	34
Total consideration paid in cash	$ 592,500
Total contingent consideration liability	$ 200,000
Number of installment payments	2
Total consideration to acquire businesses	$ 885,300
Contingent consideration liability (Note 4)	190,000
Fair Value of Assets Acquired and Liabilities Assumed
Property, plant and equipment		370,923				370,923
Goodwill		77,549				77,549
Intangible assets		458,678				458,678
Other noncurrent liabilities		(4,769)				(4,769)
Noncontrolling interests		(17,124)				(17,124)
Fair value of net assets acquired		$ 885,257				885,257
REVENUES						57,600
Operating income						3,400
General and administrative expense						$ 6,000
Class B Perpetual Preferred Units | Mesquite
Business Acquisition
Preferred units issued, net of offering costs	$ 102,800
Subsequent Event | Mesquite
Business Acquisition
Number of installment payments (amended)									6
First installment payment								$ 55,000

Acquisitions - Saltwater Water

Acquisitions - Saltwater Water Solutions Facilities (Details) $ in Thousands	3 Months Ended			9 Months Ended
	Dec. 31, 2019USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)facility	Dec. 31, 2018USD ($)	Mar. 31, 2019USD ($)
Fair Value of Assets Acquired and Liabilities Assumed
Goodwill	$ 1,307,055			$ 1,307,055		$ 1,110,456
REVENUES	2,226,529		$ 2,295,369	5,902,756	$ 6,566,003
Operating income	96,395		$ 144,449	$ 174,030	$ 31,035
Water Solutions Facilities 2020 Acquisitions Acquisition Accounting In Process
Business Acquisition
Number of saltwater facilities acquired | facility				1
Number of saltwater wells acquired | facility				3
Total consideration to acquire businesses				$ 53,000
Fair Value of Assets Acquired and Liabilities Assumed
Property, plant and equipment	24,324			24,324
Goodwill	2,413			2,413
Intangible assets	26,688			26,688
Other noncurrent liabilities	(425)			(425)
Fair value of net assets acquired	$ 53,000			53,000
REVENUES				4,800
Operating income				900
General and administrative expense				$ 100
Water Solutions Facilities 2019 Acquisitions Acquisition Accounting Finalized
Business Acquisition
Purchase accounting adjustment, intangibles		$ 2,300
Saltwater Facility
Business Acquisition
Number of saltwater wells acquired | facility				2

Acquisitions - Assets (Details)

Acquisitions - Assets (Details) $ in Millions	Nov. 07, 2019USD ($)	Dec. 31, 2019USD ($)facility
Basin
Business Acquisition
Payments to acquire assets	$ 56.6
Saltwater Facility
Business Acquisition
Payments to acquire assets		$ 13
Number of saltwater wells acquired | facility		2
Water rights | Basin
Business Acquisition
Payments to acquire assets	36.1
Equity Method Investment | Basin
Business Acquisition
Payments to acquire assets	20.3
Net Other Current and Noncurrent Assets | Basin
Business Acquisition
Payments to acquire assets	$ 0.3

Acquisitions - Freshwater Water

Acquisitions - Freshwater Water Disposal Facilities (Details) - Water Solutions Facilities 2019 Acquisitions Acquisition Accounting Finalized $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2019facility	Sep. 30, 2019USD ($)
Business Acquisition
Number of freshwater facilities acquired	4
Number of freshwater wells acquired	16
Amount paid to sellers | $		$ 2.5

Acquisitions - Natural Gas Liqu

Acquisitions - Natural Gas Liquids Terminal Business (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2019	Dec. 31, 2019	Mar. 31, 2019
Business Acquisition
Goodwill		$ 1,307,055	$ 1,110,456
Natural Gas Liquids Terminal Business 2019 Acquisitions Acquisition Accounting In Process
Business Acquisition
Purchase accounting adjustment, inventories	$ (2,700)
Purchase accounting adjustment, other current assets	300
Purchase accounting adjustment, property, plant, and equipment	100
Purchase accounting adjustment, current liabilities	(900)
Purchase accounting adjustment, noncurrent liabilities	(500)
Purchase accounting adjustment, intangibles	(26,900)
Goodwill	(2,100)
Property, plant and equipment | Natural Gas Liquids Terminal Business 2019 Acquisitions Acquisition Accounting In Process
Business Acquisition
Purchase accounting adjustment, property, plant, and equipment	$ 29,000

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Property, Plant and Equipment
Gross property, plant and equipment	$ 3,208,843		$ 3,208,843		$ 2,246,397
Accumulated depreciation	(504,731)		(504,731)		(417,457)
Net property, plant and equipment	2,704,112		2,704,112		1,828,940
Depreciation expense	37,687	$ 26,263	94,477	$ 76,671
Capitalized interest expense	439	160	439	482
Gain (loss) on sales and write-downs of certain assets	4,648	(518)	7,450	5,007
Crude oil logistics
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	198	(75)	(592)	1,251
Water solutions
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	4,476	(443)	8,075	2,762
Liquids
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	(26)	$ 0	(33)	$ 994
Natural gas liquids terminal and storage assets
Property, Plant and Equipment
Gross property, plant and equipment	310,091		$ 310,091		280,106
Natural gas liquids terminal and storage assets | Minimum
Property, Plant and Equipment
Useful life			2 years
Natural gas liquids terminal and storage assets | Maximum
Property, Plant and Equipment
Useful life			30 years
Pipeline and related facilities
Property, Plant and Equipment
Gross property, plant and equipment	244,021		$ 244,021		243,799
Pipeline and related facilities | Minimum
Property, Plant and Equipment
Useful life			30 years
Pipeline and related facilities | Maximum
Property, Plant and Equipment
Useful life			40 years
Vehicles and railcars
Property, Plant and Equipment
Gross property, plant and equipment	122,219		$ 122,219		124,948
Vehicles and railcars | Minimum
Property, Plant and Equipment
Useful life			3 years
Vehicles and railcars | Maximum
Property, Plant and Equipment
Useful life			25 years
Water treatment facilities and equipment
Property, Plant and Equipment
Gross property, plant and equipment	1,277,654		$ 1,277,654		704,666
Water treatment facilities and equipment | Minimum
Property, Plant and Equipment
Useful life			3 years
Water treatment facilities and equipment | Maximum
Property, Plant and Equipment
Useful life			30 years
Crude oil tanks and related equipment
Property, Plant and Equipment
Gross property, plant and equipment	228,012		$ 228,012		225,476
Crude oil tanks and related equipment | Minimum
Property, Plant and Equipment
Useful life			2 years
Crude oil tanks and related equipment | Maximum
Property, Plant and Equipment
Useful life			30 years
Barges and towboats
Property, Plant and Equipment
Gross property, plant and equipment	123,847		$ 123,847		103,735
Barges and towboats | Minimum
Property, Plant and Equipment
Useful life			5 years
Barges and towboats | Maximum
Property, Plant and Equipment
Useful life			30 years
Information technology equipment
Property, Plant and Equipment
Gross property, plant and equipment	34,331		$ 34,331		31,831
Information technology equipment | Minimum
Property, Plant and Equipment
Useful life			3 years
Information technology equipment | Maximum
Property, Plant and Equipment
Useful life			7 years
Buildings and leasehold improvements
Property, Plant and Equipment
Gross property, plant and equipment	147,964		$ 147,964		143,711
Buildings and leasehold improvements | Minimum
Property, Plant and Equipment
Useful life			3 years
Buildings and leasehold improvements | Maximum
Property, Plant and Equipment
Useful life			40 years
Land
Property, Plant and Equipment
Gross property, plant and equipment	87,593		$ 87,593		62,379
Tank bottoms and line fill
Property, Plant and Equipment
Gross property, plant and equipment	20,339		20,339		20,071
Other
Property, Plant and Equipment
Gross property, plant and equipment	15,069		$ 15,069		14,870
Other | Minimum
Property, Plant and Equipment
Useful life			3 years
Other | Maximum
Property, Plant and Equipment
Useful life			20 years
Construction in progress
Property, Plant and Equipment
Gross property, plant and equipment	$ 597,703		$ 597,703		$ 290,805

Goodwill (Details)

Goodwill (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2019USD ($)
Goodwill [Roll Forward]
Goodwill at the beginning of the period	$ 1,110,456
Revisions to acquisition accounting (Note 4)	2,698
Acquisitions (Note 4)	193,901
Goodwill at the end of the period	1,307,055
Crude oil logistics
Goodwill [Roll Forward]
Goodwill at the beginning of the period	579,846
Revisions to acquisition accounting (Note 4)	0
Acquisitions (Note 4)	0
Goodwill at the end of the period	579,846
Water solutions
Goodwill [Roll Forward]
Goodwill at the beginning of the period	410,139
Revisions to acquisition accounting (Note 4)	4,755
Acquisitions (Note 4)	193,901
Goodwill at the end of the period	608,795
Liquids
Goodwill [Roll Forward]
Goodwill at the beginning of the period	103,421
Revisions to acquisition accounting (Note 4)	(2,057)
Acquisitions (Note 4)	0
Goodwill at the end of the period	101,364
Refined products and renewables
Goodwill [Roll Forward]
Goodwill at the beginning of the period	17,050
Revisions to acquisition accounting (Note 4)	0
Acquisitions (Note 4)	0
Goodwill at the end of the period	$ 17,050

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Mar. 31, 2019
Amortizable
Finite-lived intangible assets, gross	$ 2,201,328	$ 1,301,206
Accumulated amortization	(603,573)	(503,117)
Finite-lived intangible assets, net	1,597,755	798,089
INTANGIBLE ASSETS, net of accumulated amortization	1,600,555	800,889
Non-Amortizable
Gross carrying amount of intangible assets	$ 2,204,128	1,304,006
Weighted-average remaining amortization period for intangible assets	17 years 4 months 24 days
Trade names
Non-Amortizable
Indefinite-lived intangible assets	$ 2,800	2,800
Customer relationships
Amortizable
Finite-lived intangible assets, gross	1,384,922	742,832
Accumulated amortization	(428,971)	(369,983)
Finite-lived intangible assets, net	$ 955,951	372,849
Customer relationships | Minimum
Amortizable
Amortizable life	3 years
Customer relationships | Maximum
Amortizable
Amortizable life	30 years
Customer commitments
Amortizable
Finite-lived intangible assets, gross	$ 502,000	310,000
Accumulated amortization	(102,007)	(74,917)
Finite-lived intangible assets, net	$ 399,993	235,083
Customer commitments | Minimum
Amortizable
Amortizable life	10 years
Customer commitments | Maximum
Amortizable
Amortizable life	25 years
Pipeline capacity rights
Amortizable
Amortizable life	30 years
Finite-lived intangible assets, gross	$ 7,800	7,799
Accumulated amortization	(1,582)	(1,387)
Finite-lived intangible assets, net	6,218	6,412
Rights-of-way and easements
Amortizable
Finite-lived intangible assets, gross	86,988	73,409
Accumulated amortization	(6,185)	(4,509)
Finite-lived intangible assets, net	$ 80,803	68,900
Rights-of-way and easements | Minimum
Amortizable
Amortizable life	1 year
Rights-of-way and easements | Maximum
Amortizable
Amortizable life	45 years
Water rights
Amortizable
Finite-lived intangible assets, gross	$ 100,936	64,868
Accumulated amortization	(6,709)	(3,018)
Finite-lived intangible assets, net	$ 94,227	61,850
Water rights | Minimum
Amortizable
Amortizable life	13 years
Water rights | Maximum
Amortizable
Amortizable life	30 years
Executory contracts and other agreements
Amortizable
Finite-lived intangible assets, gross	$ 55,029	47,230
Accumulated amortization	(19,412)	(17,212)
Finite-lived intangible assets, net	$ 35,617	30,018
Executory contracts and other agreements | Minimum
Amortizable
Amortizable life	5 years
Executory contracts and other agreements | Maximum
Amortizable
Amortizable life	30 years
Non-compete agreements
Amortizable
Finite-lived intangible assets, gross	$ 19,823	12,723
Accumulated amortization	(5,259)	(2,570)
Finite-lived intangible assets, net	$ 14,564	10,153
Non-compete agreements | Minimum
Amortizable
Amortizable life	2 years
Non-compete agreements | Maximum
Amortizable
Amortizable life	24 years
Debt issuance costs
Amortizable
Finite-lived intangible assets, gross	$ 43,830	42,345
Accumulated amortization	(33,448)	(29,521)
Finite-lived intangible assets, net	$ 10,382	$ 12,824
Debt issuance costs | Minimum
Amortizable
Amortizable life	3 years
Debt issuance costs | Maximum
Amortizable
Amortizable life	5 years

Intangible Assets - Amortizatio

Intangible Assets - Amortization (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Amortization related to intangible assets
Amortization expense	$ 37,606	$ 28,369	$ 100,677	$ 85,153
Future amortization expense of intangible assets
2020 (three months)	39,679		39,679
2021	146,692		146,692
2022	133,534		133,534
2023	125,159		125,159
2024	118,961		118,961
Thereafter	1,033,730		1,033,730
Finite-lived intangible assets, net	1,597,755		1,597,755		$ 798,089
Depreciation and amortization
Amortization related to intangible assets
Amortization expense	36,039	27,018	96,116	81,100
Cost of sales
Amortization related to intangible assets
Amortization expense	86	101	262	385
Interest expense
Amortization related to intangible assets
Amortization expense	1,371	1,250	3,927	3,668
Operating expenses
Amortization related to intangible assets
Amortization expense	$ 110	$ 0	$ 372	$ 0

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Apr. 09, 2019	Mar. 31, 2019
Long-Term Debt
Face amount	$ 3,093,303		$ 3,093,303			$ 2,172,789
Face amount, current portion	4,835		4,835			648
Face amount, long-term	3,088,468		3,088,468			2,172,141
LONG-TERM DEBT, debt issuance costs	(20,263)		(20,263)			(12,008)
Debt issuance costs, current, net	0		0			0
Debt issuance costs, noncurrent, net	(20,263)		(20,263)			(12,008)
Book value	3,073,040		3,073,040			2,160,781
Book value, current	4,835		4,835			648
LONG-TERM DEBT, net of debt issuance costs and current maturities	3,068,205		3,068,205			2,160,133
Amortization of debt issuance costs	1,600	$ 900	3,500	$ 3,400
Expected Future Amortization of Debt Issuance Costs
2020 (three months)	1,922		1,922
2021	3,942		3,942
2022	3,929		3,929
2023	3,929		3,929
2024	3,305		3,305
Thereafter	3,236		3,236
Total	$ 20,263		$ 20,263
7.50% Senior Notes due 2023
Long-Term Debt
Fixed interest rate	7.50%		7.50%
Face amount	$ 607,323		$ 607,323			607,323
LONG-TERM DEBT, debt issuance costs	(5,782)		(5,782)			(6,916)
Book value	$ 601,541		$ 601,541			600,407
6.125% Senior Notes due 2025
Long-Term Debt
Fixed interest rate	6.125%		6.125%
Face amount	$ 389,135		$ 389,135			389,135
LONG-TERM DEBT, debt issuance costs	(4,451)		(4,451)			(5,092)
Book value	$ 384,684		$ 384,684			384,043
7.50% Senior Notes due 2026
Long-Term Debt
Fixed interest rate	7.50%		7.50%		7.50%
Face amount	$ 450,000		$ 450,000			0
LONG-TERM DEBT, debt issuance costs	(7,198)		(7,198)			0
Book value	442,802		442,802			0
Term Credit Agreement
Long-Term Debt
Face amount	250,000		250,000
LONG-TERM DEBT, debt issuance costs	(2,832)		(2,832)
Book value	247,168		247,168
Other long-term debt
Long-Term Debt
Face amount	4,845		4,845			5,331
LONG-TERM DEBT, debt issuance costs	0		0			0
Book value	4,845		4,845			5,331
Expansion Capital Facility | Revolving Credit Facility
Long-Term Debt
Face amount	945,000		945,000			275,000
LONG-TERM DEBT, debt issuance costs	0		0			0
Book value	945,000		945,000			275,000
Working Capital Facility | Revolving Credit Facility
Long-Term Debt
Face amount	447,000		447,000			896,000
LONG-TERM DEBT, debt issuance costs	0		0			0
Book value	$ 447,000		$ 447,000			$ 896,000

Long-Term Debt - Credit Agreeme

Long-Term Debt - Credit Agreement (Details) - USD ($) $ in Millions	Dec. 30, 2019	Oct. 30, 2019	Dec. 31, 2019
Term Credit Agreement | Prime rate
Long-Term Debt
Reference rate			1.74%
Interest rate margin added to variable rate base			3.00%
Revolving Credit Facility
Long-Term Debt
Line of credit facility increase	$ 150
Maximum borrowing capacity			$ 1,915
Line of credit covenant change		On October 30, 2019, we amended the Credit Agreement to, among other things, adjust the allocation of the commitments of the lenders to make revolving loans thereunder and, effective with the fiscal quarter ending December 31, 2019, amend the covenant package to include the senior secured leverage ratio, interest coverage ratio and total leverage indebtedness ratio financial covenants (each as defined in the Credit Agreement). The new debt covenant levels are presented in the table below.
Financial Covenants in Credit Agreement
Debt instrument, actual senior secured leverage ratio			1.83
Debt instrument, actual interest coverage ratio			3.89
Debt instrument, actual total leverage indebtedness ratio			5
Revolving Credit Facility | Minimum
Long-Term Debt
Commitment fees charged on unused capacity			0.375%
Financial Covenants in Credit Agreement
Debt instrument, covenant interest coverage ratio December 31, 2019 to October 5, 2021			2.50
Revolving Credit Facility | Maximum
Long-Term Debt
Commitment fees charged on unused capacity			0.50%
Financial Covenants in Credit Agreement
Debt instrument, covenant senior secured leverage ratio December 31, 2019 to October 5, 2021			3.50
Debt instrument, covenant total leverage indebtedness ratio December 31, 2019 to June 29, 2020			5.75
Debt instrument, covenant total leverage indebtedness ratio June 30, 2020 to October 5, 2021			5.50
Revolving Credit Facility | LIBOR option
Long-Term Debt
Reference rate			1.76%
Interest rate margin added to variable rate base			2.25%
Revolving Credit Facility | Prime rate
Long-Term Debt
Reference rate			4.75%
Interest rate margin added to variable rate base			1.25%
Revolving Credit Facility
Long-Term Debt
Interest rate			4.07%
Working Capital Facility | Revolving Credit Facility
Long-Term Debt
Maximum borrowing capacity			$ 641.5
Working Capital Facility | Letter of Credit
Long-Term Debt
Outstanding letters of credit			117.2
Expansion Capital Facility | Revolving Credit Facility
Long-Term Debt
Maximum borrowing capacity			$ 1,273
Letter of Credit | Revolving Credit Facility
Long-Term Debt
Fixed interest rate			2.25%

Long-Term Debt - Senior Unsecur

Long-Term Debt - Senior Unsecured Notes (Details) - 7.50% Senior Notes due 2026 - USD ($) $ in Millions	Apr. 09, 2019	Dec. 31, 2019
Long-Term Debt
Face amount	$ 450
Fixed interest rate	7.50%	7.50%
Proceeds from 2026 Notes	$ 442.1
Purchaser's discount	6.8
Offering costs	$ 1.1

Long-Term Debt - Term Credit Ag

Long-Term Debt - Term Credit Agreement (Details) - USD ($) $ in Thousands	Jul. 02, 2019	Dec. 31, 2019	Mar. 31, 2019
Long-Term Debt
Face amount		$ 3,093,303	$ 2,172,789
Term Credit Agreement
Long-Term Debt
Face amount		$ 250,000
Secured debt	$ 250,000
Term Credit Agreement, interest rate description	All borrowings under the Term Credit Agreement bear interest, at either (a) an alternate base rate plus (i) during the first three-month period after the Closing Date, margin equal to the applicable margin for alternate base rate loans calculated under our existing revolving credit facility, (ii) 2.00% per annum for the second three-month period after the Closing Date, (iii) 2.25% per annum for the third three-month period after the Closing Date, (iv) 2.50% per annum for the fourth three-month period after the Closing Date, and (v) thereafter, the rate per year such that the alternate base rate equals a rate of interest agreed to between us and the administrative agent, or (b) an adjusted LIBOR rate plus (i) during the first three-month period after the Closing Date, margin equal to the applicable margin for LIBOR rate loans calculated under our existing revolving credit facility, (ii) 3.00% per annum for the second three-month period after the Closing Date, (iii) 3.25% per annum for the third three-month period after the Closing Date, (iv) 3.50% per annum for the fourth three-month period after the Closing Date, and (v) thereafter, such rate per annum such that the adjusted LIBOR rate equals a rate of interest agreed to between us and the administrative agent.
Term Credit Agreement
Long-Term Debt
Interest rate		4.74%
Prime rate | Term Credit Agreement
Long-Term Debt
Reference rate		1.74%
Interest rate margin added to variable rate base		3.00%

Long-Term Debt - Sawtooth Credi

Long-Term Debt - Sawtooth Credit Agreement (Details) - USD ($)	9 Months Ended
	Dec. 31, 2019	Mar. 31, 2019
Line of Credit Facility [Line Items]
Face amount	$ 3,093,303,000	$ 2,172,789,000
Sawtooth Credit Facility
Line of Credit Facility [Line Items]
Ownership percentage in Sawtooth	71.48%
Maximum borrowing capacity	$ 20,000,000
Face amount	$ 0
Commitment fees charged on unused capacity	0.50%

Long-Term Debt - Other Long-Ter

Long-Term Debt - Other Long-Term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Long-Term Debt
Face amount	$ 3,093,303	$ 2,172,789
Equipment loan
Long-Term Debt
Face amount	$ 4,800
Equipment loan | Minimum
Long-Term Debt
Fixed interest rate	4.13%
Equipment loan | Maximum
Long-Term Debt
Fixed interest rate	7.10%

Long-Term Debt - Debt Maturity

Long-Term Debt - Debt Maturity Schedule (Details) $ in Thousands	Dec. 31, 2019USD ($)
Maturities
2020 (three months)	$ 161
2021	4,684
2022	1,392,000
2023	0
2024	607,323
Thereafter	1,089,135
Total	3,093,303
Revolving Credit Facility
Maturities
2022	1,392,000
Total	1,392,000
Senior unsecured notes
Maturities
2024	607,323
Thereafter	839,135
Total	1,446,458
Term Credit Agreement
Maturities
Thereafter	250,000
Total	250,000
Other long-term debt
Maturities
2020 (three months)	161
2021	4,684
2022	0
Total	$ 4,845

Commitments and Contingencies -

Commitments and Contingencies - Legal Contingencies (Details) $ in Millions	9 Months Ended
	Dec. 31, 2019USD ($)
Loss Contingencies
Range of possible loss	$ 4
Loss contingency accrual	2.5
Services Rendered
Loss Contingencies
Damages awarded	4
Fraudulent Misrepresentation
Loss Contingencies
Damages awarded	$ 29

Commitments and Contingencies_2

Commitments and Contingencies - Environmental Matters (Details) number in Millions, $ in Millions	9 Months Ended	12 Months Ended
	Dec. 31, 2019USD ($)	Mar. 31, 2019USD ($)
Environmental matter
Environmental matters liability	$ 2.1
Litigation settlement, cash portion	$ 25
Litigation settlement, renewable identification numbers	36	36
Litigation settlement expense	$ 12.5	$ 12.5

Commitments and Contingencies_3

Commitments and Contingencies - Asset Retirement Obligations (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2019USD ($)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at beginning of period	$ 9,723
Liabilities incurred	1,125
Liabilities assumed in acquisitions	6,641
Liabilities settled	(642)
Accretion expense	734
Balance at end of period	$ 17,581

Commitments and Contingencies_4

Commitments and Contingencies - Other Commitments (Details) $ in Thousands	Dec. 31, 2019USD ($)
Future minimum payments
2020 (three months)	$ 2,463
2021	6,453
2022	6,163
2023	4,502
2024	4,502
Thereafter	679
Total	24,762
Hillstone Subsidy Payment
Other Commitments [Line Items]
Contractual Obligation	400
Minimum | Hillstone Subsidy Payment
Other Commitments [Line Items]
Contractual Obligation	0
Maximum | Hillstone Subsidy Payment
Other Commitments [Line Items]
Contractual Obligation	$ 9,700

Commitments and Contingencies_5

Commitments and Contingencies - Pipeline Capacity Agreements (Details) - USD ($) $ in Thousands	Oct. 24, 2019	Jun. 30, 2019	Dec. 31, 2019
Future minimum throughput payments
Number of additional years to use deficiency credit	5 years 6 months
Customer contracts
Future minimum throughput payments
Number of months to continue shipping after maturity date of contract		6 months
Pipeline capacity agreements
Future minimum throughput payments
2020 (three months)			$ 11,006
2021			35,314
2022			35,314
2023			35,314
2024			35,410
Thereafter			30,897
Contractual obligation, total due			$ 183,255

Commitments and Contingencies_6

Commitments and Contingencies - Construction Commitments (Details) $ in Millions	Dec. 31, 2019USD ($)
Commitments and Contingencies Disclosure [Abstract]
Construction payable	$ 6.5

Commitments and Contingencies_7

Commitments and Contingencies - Purchase Commitments (Details) gal in Thousands, bbl in Thousands, $ in Thousands	Dec. 31, 2019USD ($)bblgal
Crude oil
Purchase commitments for crude oil and natural gas
Fixed-price purchase commitments, due in remainder of fiscal year	$ 49,160
Fixed-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | bbl	824
Total fixed-price purchase commitments	$ 49,160
Total fixed-price purchase commitments (in barrels/gallons) | bbl	824
Index-price purchase commitments, due remainder of fiscal year	$ 684,946
Index-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | bbl	11,730
Index-price purchase commitments, due in second year	$ 544,878
Index-price purchase commitments (in barrels/gallons), due in second year | bbl	10,617
Index-price purchase commitments, due in third year	$ 394,385
Index-price purchase commitments (in barrels), due in third year | bbl	8,264
Index-price purchase commitments, due in fourth year	$ 255,818
Index-price purchase commitments (in barrels), due in fourth year | bbl	5,482
Index-price purchase commitments, due in fifth year	$ 190,259
Index-price purchase commitments (in barrels), due in fifth year | bbl	4,110
Total index-price purchase commitments	$ 2,070,286
Total index-price purchase commitments (in barrels/gallons) | bbl	40,203
Natural gas liquids
Purchase commitments for crude oil and natural gas
Fixed-price purchase commitments, due in remainder of fiscal year	$ 8,410
Fixed-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | gal	14,526
Fixed-price purchase commitments, due in second year	$ 1,341
Fixed-price purchase commitments (in gallons), due in second year | gal	2,100
Total fixed-price purchase commitments	$ 9,751
Total fixed-price purchase commitments (in barrels/gallons) | gal	16,626
Index-price purchase commitments, due remainder of fiscal year	$ 198,694
Index-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | gal	421,949
Index-price purchase commitments, due in second year	$ 1,321
Index-price purchase commitments (in barrels/gallons), due in second year | gal	3,662
Total index-price purchase commitments	$ 200,015
Total index-price purchase commitments (in barrels/gallons) | gal	425,611

Commitments and Contingencies_8

Commitments and Contingencies - Sale Commitments (Details) gal in Thousands, bbl in Thousands, $ in Thousands	Dec. 31, 2019USD ($)bblgal	Mar. 31, 2019USD ($)
Sale commitments for crude oil and natural gas
Net commodity derivative asset	$ 17,709	$ 7,700
Crude oil
Sale commitments for crude oil and natural gas
Fixed-price sale commitments, due in remainder of fiscal year	$ 45,605
Fixed-price sale commitments (in barrels/gallons), due in remainder of fiscal year | bbl	750
Total fixed-price sale commitments	$ 45,605
Total fixed-price sale commitments (in barrels/gallons) | bbl	750
Index-price sale commitments, due in remainder of fiscal year	$ 817,155
Index-price sale commitments (in barrels), due in remainder of fiscal year | bbl	13,294
Index-price sale commitments, due in second year	$ 23,367
Index-price sale commitments (in barrels/gallons), due in second year | bbl	390
Total index-price sale commitments	$ 840,522
Total index-price sale commitment (in barrels/gallons) | bbl	13,684
Natural gas liquids
Sale commitments for crude oil and natural gas
Fixed-price sale commitments, due in remainder of fiscal year	$ 99,333
Fixed-price sale commitments (in barrels/gallons), due in remainder of fiscal year | gal	123,418
Fixed-price sale commitments, due in second year	$ 13,746
Fixed-price sale commitments (in gallons), due in second year | gal	20,034
Fixed-price sale commitments, due in third year	$ 157
Fixed-price sale commitments (in gallons), due in third year | gal	203
Total fixed-price sale commitments	$ 113,236
Total fixed-price sale commitments (in barrels/gallons) | gal	143,655
Index-price sale commitments, due in remainder of fiscal year	$ 337,627
Index-price sale commitments (in barrels), due in remainder of fiscal year | gal	481,567
Index-price sale commitments, due in second year	$ 28,365
Index-price sale commitments (in barrels/gallons), due in second year | gal	46,659
Total index-price sale commitments	$ 365,992
Total index-price sale commitment (in barrels/gallons) | gal	528,226
Prepaid expenses and other current assets
Sale commitments for crude oil and natural gas
Net commodity derivative asset	$ 8,300
Accrued expenses and other payables
Sale commitments for crude oil and natural gas
Net commodity derivative asset	$ 5,300

Equity - Partnership Equity and

Equity - Partnership Equity and General Partner Contributions (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended	12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2019	Mar. 31, 2019
Equity
General partner interest			0.10%	0.10%
Limited partner interest			99.90%	99.90%
General partner's capital account, notional units issued (in units)			3,844
Notional units issued	$ 102,757	$ 42,638
Common units
Equity
General partner interest			0.10%
Ownership interest in NGL Energy Holdings LLC			8.69%
Limited partner interest			99.90%
General Partner
Equity
Notional units issued			$ 100
NGL Energy Holdings LLC
Equity
Ownership interest in NGL Energy Holdings LLC	5.73%	1.89%	1.08%

Equity - Equity Issuances (Deta

Equity - Equity Issuances (Details) - Common units - USD ($) $ in Millions	Aug. 24, 2016	Dec. 31, 2019
Equity
Aggregate offering price under at the market program	$ 200
Aggregate offering price remaining for sale		$ 134.7

Equity - Common Unit Repurchase

Equity - Common Unit Repurchase Program (Details) $ in Millions	Aug. 30, 2019USD ($)
Common units
Equity
Stock repurchase program, authorized amount	$ 150

Equity - Distributions (Details

Equity - Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	Feb. 14, 2020	Jan. 23, 2020	Nov. 14, 2019	Oct. 23, 2019	Aug. 14, 2019	Jul. 23, 2019	May 15, 2019	Apr. 24, 2019
Distributions
Amount Per Unit (in dollars per unit)				$ 0.3900		$ 0.3900		$ 0.3900
Amount Paid/Payable to Limited Partners			$ 49,936		$ 49,217		$ 49,127
Amount Paid/Payable to General Partner			$ 86		$ 85		$ 85
Subsequent Event
Distributions
Amount Per Unit (in dollars per unit)		$ 0.3900
Amount Paid/Payable to Limited Partners	$ 50,056
Amount Paid/Payable to General Partner	$ 86

Equity - Class A Convertible Pr

Equity - Class A Convertible Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands	May 11, 2019	May 10, 2019	Apr. 05, 2019	Apr. 21, 2016	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Preferred Units
Accretion of beneficial conversion feature						$ 36,517	$ 18,573	$ 12,803	$ 8,983
Class A Convertible Preferred Units
Preferred Units
Temporary equity, issued (in units)				19,942,169								19,942,169
Oaktree Capital Management L.P. | Class A Convertible Preferred Units
Preferred Units
Proceeds from sale of convertible preferred units and warrants, net of offering costs				$ 235,000
Offering costs				$ 5,000
Accretion of beneficial conversion feature					$ 0		$ 18,600			$ 36,500	$ 40,400
Preferred units redeemed	12,473,191		7,468,978
Preferred units redemption price per unit excluding unpaid dividends	$ 13.2385		$ 13.389
Preferred unit redemption premium percentage	110.00%		111.25%
Convertible preferred units initial conversion price				$ 12.035
Preferred units accrued but unpaid distributions	$ 0.1437		$ 0.338
Preferred unit, redemption price per unit	$ 13.3822		$ 13.727
Preferred unit, redemption amount	$ 166,900		$ 102,500
Amount paid to preferred unitholders		$ 4,000
Distributions made to preferred unitholders distributions declared per unit		$ 0.3234
Warrant | Oaktree Capital Management L.P.
Preferred Units
Warrants outstanding (in units)				4,375,112
Warrants converted to common units (in units)			1,458,371
Proceeds from warrant exercises			$ 100

Equity - Class B Preferred Unit

Equity - Class B Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands	Jan. 15, 2020	Oct. 15, 2019	Jul. 15, 2019	Jul. 02, 2019	Apr. 15, 2019	Jun. 13, 2017	Sep. 30, 2019	Jun. 30, 2019
Preferred Units
Preferred units issued, net of offering costs							$ 102,757	$ 42,638
Class B Perpetual Preferred Units
Preferred Units
Preferred units, issued (in units)						8,400,000
Preferred units dividend rate						9.00%
Preferred unit par or stated value per unit						$ 25
Distributions made to preferred unitholders distributions declared per unit		$ 0.5625	$ 0.5625		$ 0.5625
Amount paid to preferred unitholders		$ 7,079	$ 4,725		$ 4,725
Class B Perpetual Preferred Units
Preferred Units
Preferred units issued, net of offering costs						$ 202,700
Preferred units, underwriting discounts and commissions						6,600
Preferred units, offering costs						$ 700
Preferred units, dividend payment terms						The current distribution rate for the Class B Preferred Units is 9.00% per year of the $25.00 liquidation preference per unit (equal to $2.25 per unit per year).
Class B Perpetual Preferred Units | Class B Perpetual Preferred Units
Preferred Units
Preferred units, issued (in units)				4,185,642
Subsequent Event | Class B Perpetual Preferred Units
Preferred Units
Distributions made to preferred unitholders distributions declared per unit	$ 0.5625
Amount paid to preferred unitholders	$ 7,079

Equity - Class C Preferred Unit

Equity - Class C Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands	Jan. 15, 2020	Oct. 15, 2019	Jul. 15, 2019	Apr. 02, 2019	Sep. 30, 2019	Jun. 30, 2019
Schedule of Capitalization, Equity [Line Items]
Preferred units issued, net of offering costs					$ 102,757	$ 42,638
Preferred Class C [Domain]
Schedule of Capitalization, Equity [Line Items]
Preferred units issued, net of offering costs				$ 42,900
Preferred units, underwriting discounts and commissions				1,400
Preferred units, offering costs				$ 700
Preferred units, dividend payment terms				The current distribution rate for the Class C Preferred Units is 9.625% per year of the $25.00 liquidation preference per unit (equal to $2.41 per unit per year).
Preferred Class C [Domain] | Preferred Class C [Domain]
Schedule of Capitalization, Equity [Line Items]
Preferred units, issued (in units)				1,800,000
Preferred Class C [Domain]
Schedule of Capitalization, Equity [Line Items]
Preferred units dividend rate				9.625%
Preferred unit par or stated value per unit				$ 25
Distributions made to preferred unitholders distributions declared per unit		$ 0.6016	$ 0.5949
Amount paid to preferred unitholders		$ 1,083	$ 1,071
Subsequent Event | Preferred Class C [Domain]
Schedule of Capitalization, Equity [Line Items]
Distributions made to preferred unitholders distributions declared per unit	$ 0.6016
Amount paid to preferred unitholders	$ 1,083

Equity - Class D Preferred Unit

Equity - Class D Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands	Feb. 14, 2020	Nov. 14, 2019	Oct. 31, 2019	Jul. 02, 2019	Feb. 14, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2019
Subsequent Event
Allocation of net proceeds to warrants						$ 11,057	$ 41,685
Class D Preferred Units
Subsequent Event
Closing fee payable to affiliates of the purchaser			$ 5,300	$ 14,600
Preferred units, dividend payment terms				The holders of the Class D Preferred Units are entitled to receive a cumulative, quarterly distribution in arrears on each Class D Preferred Unit then held at an annual rate of (i) 9.00% per annum for all periods during which the Class D Preferred Units are outstanding beginning on the Closing Date and ending on the date and including the last day of the eleventh full quarter following the Closing Date, (ii) 10.00% per annum for all periods during which the Class D Preferred Units are outstanding beginning on and including the first day of the twelfth full quarter following the Closing Date and ending on the last day of the nineteenth full quarter following the Closing Date, and (iii) thereafter, 10.00% per annum or, at the purchasers’ election from time to time, a floating rate equal to the applicable three-month LIBOR, plus 7.00% per annum. The current distribution rate for the Class D Preferred Units is 9.00% per year per unit (equal to $90.00 per unit per year).
Preferred units, redemption terms				At any time after the Closing Date, the Partnership shall have the right to redeem all of the outstanding Class D Preferred Units at a price per Class D Preferred Unit equal to the sum of the then-unpaid accumulations with respect to such Class D Preferred Unit and the greater of either the applicable multiple on invested capital or the applicable redemption price based on an applicable internal rate of return, as more fully described in the Amended and Restated Partnership Agreement. At any time on or after the eighth anniversary of the Closing Date, each Class D Preferred Unitholder will have the right to require the Partnership to redeem on a date not prior to the 180th day after such anniversary all or a portion of the Class D Preferred Units then held by such preferred unitholder for the then-applicable redemption price, which may be paid in cash or, at the Partnership’s election, a combination of cash and a number of Common Units not to exceed one-half of the aggregate then-applicable redemption price, as more fully described in the Amended and Restated Partnership Agreement. Upon a Class D Change of Control (as defined in the Amended and Restated Partnership Agreement), each Class D Preferred Unitholder will have the right to require the Partnership to redeem the Class D Preferred Units then held by such Preferred Unitholder at a price per Class D Preferred Unit equal to the applicable redemption price. The Class D Preferred Units generally will not have any voting rights, except with respect to certain matters which require the vote of the Class D Preferred Units. The Class D Preferred Units generally do not have any voting rights, except that the Class D Preferred Units shall be entitled to vote as a separate class on any matter on which unitholders are entitled to vote that adversely affects the rights, powers, privileges or preferences of the Class D Preferred Units in relation to other classes of Partnership Interests (as defined in the Amended and Restated Partnership Agreement) or as required by law. The consent of a majority of the then-outstanding Class D Preferred Units, with one vote per Class D Preferred Unit, shall be required to approve any matter for which the preferred unitholders are entitled to vote as a separate class or the consent of the representative of the Class D Preferred Unitholders, as applicable.
Preferred units, change of control terms				Upon a change of control, all unvested warrants shall immediately vest and be exercisable in full. A change of control occurs when (a) the current general partner owners cease to own, directly or indirectly, at least 50% of the outstanding voting securities of the general partner, (b) the general partner withdraws or is removed by the limited partners, (c) the common units are no longer listed on a national exchange, or (d) the general partners and/or its affiliates become beneficial owner, directly or indirectly, of 80% or more of the outstanding common units or any transaction or event that occurs due to default on our credit agreement.
Registration rights agreement terms				In connection with the issuance of the Class D Preferred Units, we entered into a registration rights agreement (“Registration Rights Agreement”) with the purchasers of the Class D Preferred Units (“Purchasers”), pursuant to which we are required to prepare and file a registration statement (the “Registration Statement”) within 180 days of the Closing Date, to permit the public resale of (i) the Class D Preferred Units, (ii) the common units issued or issuable upon the exercise of the warrants, (iii) the common units that are issuable pursuant to the terms of the Class D Preferred Units in connection with a redemption of the Class D Preferred Units and (iv) any common units issued in lieu of cash as liquidated damages under the Registration Rights Agreement. The Partnership is also required to use its commercially reasonable efforts to cause the Registration Statement to become effective no later than 360 days after the Closing Date. The Registration Rights Agreement provides that if the Registration Statement is not declared effective on or prior to the Registration Statement Deadline, the Partnership will be liable to the Purchasers for liquidated damages in accordance with a formula, subject to the limitations set forth in the Registration Rights Agreement. Such liquidated damages would be payable in cash, or if payment in cash would breach any covenant or a cause a default under a credit facility or any other debt instrument filed by the Partnership as an exhibit to a periodic report filed with the SEC, then such liquidated damages would be payable in the form of newly issued common units. In addition, the Registration Rights Agreement grants the Purchasers piggyback registration rights. These registration rights are transferable to affiliates of the Purchasers and, in certain circumstances, to third parties.
Board rights agreement				In connection with the issuance of the Class D Preferred Units, we entered into a board rights agreement pursuant to which affiliates of the Purchasers will have the right to designate one director on the board of directors of our general partner, so long as the Purchasers and their respective affiliates, in the aggregate, own either at least (i) (A) 50% of the number of Class D Preferred Units issued on the Closing Date or (B) 50% of the aggregate liquidation preference of any class or series of Class D Parity Securities (as defined in the Amended and Restated Partnership Agreement), or (ii) warrants and/or common units that, in the aggregate, comprise 10% or more of the then-outstanding common units.
Class D Preferred Units Second Issuance [Domain]
Subsequent Event
Temporary equity, issued (in units)			200,000
Preferred units, authorized amount			$ 200,000
Proceeds from issuance of preferred units			183,600
Class D Preferred Units Second Issuance [Domain] | Warrant
Subsequent Event
Allocation of net proceeds to warrants			11,100
Class D Preferred Units
Subsequent Event
Temporary equity, issued (in units)				400,000		600,000		600,000
Preferred units, authorized amount				$ 400,000
Proceeds from sale of convertible preferred units and warrants, net of offering costs			$ 194,700	385,400
Proceeds from issuance of preferred units				343,700
Amount paid to preferred unitholders		$ 4,450
Distributions made to preferred unitholders distributions declared per unit		$ 11.25
Percent of dividend not paid in cash								50.00%
Class D Preferred Units | Warrant
Subsequent Event
Allocation of net proceeds to warrants				$ 41,700
Class D Preferred Units | Subsequent Event
Subsequent Event
Amount paid to preferred unitholders	$ 6,075
Distributions made to preferred unitholders distributions declared per unit	$ 11.25				$ 11.25
Dividends paid-in-kind					$ 10,500
Class D Preferred Units
Subsequent Event
Warrants outstanding (in units)				17,000,000
Class D Preferred Units | Warrant
Subsequent Event
Class of warrant or right, exercise price			$ 16.28
Class D Preferred Units | Par Warrants
Subsequent Event
Warrants outstanding (in units)				7,000,000
Class of warrant or right, exercise price				$ 14.54
Class D Preferred Units | Premium Warrants
Subsequent Event
Warrants outstanding (in units)				10,000,000
Class of warrant or right, exercise price				$ 17.45
Class D Preferred Units Second Issuance [Domain]
Subsequent Event
Warrants outstanding (in units)			8,500,000
Class D Preferred Units Second Issuance [Domain] | Par Warrants
Subsequent Event
Warrants outstanding (in units)			3,500,000
Class of warrant or right, exercise price			$ 13.56
Class D Preferred Units Second Issuance [Domain] | Premium Warrants
Subsequent Event
Warrants outstanding (in units)			5,000,000

Equity - Equity-Based Incentive

Equity - Equity-Based Incentive Compensation - Award Activity (Details)	9 Months Ended
	Dec. 31, 2019USD ($)shares
Equity-Based Incentive Compensation
Common units canceled during period	88,718
Value of common units canceled during period | $	$ 1,200,000
Restricted units
Equity-Based Incentive Compensation
Distributions on restricted units during the vesting period | $	$ 0
Service awards
Award activity
Unvested restricted units at the beginning of the period (in units)	2,308,400
Units granted (in units)	2,095,681
Units vested and issued (in units)	(2,470,756)
Units forfeited (in units)	(152,425)
Unvested restricted units at the end of the period (in units)	1,780,900

Equity - Equity-Based Incenti_2

Equity - Equity-Based Incentive Compensation - Service Awards Vesting Schedule (Details) - Service awards	9 Months Ended
	Dec. 31, 2019shares
Equity-Based Incentive Compensation
Units vested and issued (in units)	2,470,756
Unvested restricted units at the end of the period (in units)	1,780,900
2020 (three months)
Equity-Based Incentive Compensation
Units vested and issued (in units)	443,725
2021
Equity-Based Incentive Compensation
Units vested and issued (in units)	890,200
2022
Equity-Based Incentive Compensation
Units vested and issued (in units)	446,975

Equity - Equity-Based Incenti_3

Equity - Equity-Based Incentive Compensation - Service Awards Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Equity-Based Incentive Compensation
Units granted as bonus			1,886,131
Accrued bonuses					$ 8,700
Service awards
Equity-Based Incentive Compensation
Expense recorded	$ 1,800	$ 3,400	$ 6,600	$ 8,500
Fair value of units granted as bonus			24,500
Estimated future equity-based compensation expense
2020 (three months)			1,697
2021			4,640
2022			1,579
Total			$ 7,916
Restricted units
Equity-Based Incentive Compensation
Common units available for issuance under LTIP	2,700,000		2,700,000

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Fair Value of Commodity Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Derivative assets (liabilities)
Net commodity derivative asset	$ 17,709	$ 7,700
Prepaid expenses and other current assets
Derivative assets (liabilities)
Net commodity derivative asset	8,300
Accrued expenses and other payables
Derivative assets (liabilities)
Net commodity derivative asset	5,300
Commodity contracts
Assets:
Derivative assets	12,490	12,636
Netting of counterparty contracts, assets	(3,824)	(1,577)
Net cash collateral provided (held)	14,460	1,740
Commodity derivatives	23,126	12,799
Liabilities:
Derivative liabilities	(15,346)	(6,468)
Netting of counterparty contracts, liabilities	3,824	1,577
Net cash collateral provided (held)	6,105	(208)
Commodity derivatives	(5,417)	(5,099)
Derivative assets (liabilities)
Net commodity derivative asset	17,709	7,700
Commodity contracts | Prepaid expenses and other current assets
Derivative assets (liabilities)
Net commodity derivative asset	23,126	12,799
Commodity contracts | Accrued expenses and other payables
Derivative assets (liabilities)
Net commodity derivative asset	(5,353)	(4,960)
Commodity contracts | Other noncurrent liabilities
Derivative assets (liabilities)
Net commodity derivative asset	(64)	(139)
Level 1 | Commodity contracts
Assets:
Derivative assets	3,671	3,754
Liabilities:
Derivative liabilities	(9,877)	(1,349)
Level 2 | Commodity contracts
Assets:
Derivative assets	8,819	8,882
Liabilities:
Derivative liabilities	$ (5,469)	$ (5,119)

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Derivative Contract Positions (Details) bbl in Thousands, $ in Thousands	Dec. 31, 2019USD ($)bbl	Mar. 31, 2019USD ($)bbl
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ (2,856)	$ 6,168
Net cash collateral provided	20,565	1,532
Net commodity derivative asset	17,709	7,700
Crude oil fixed-price
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ (5,330)	$ 979
Crude oil fixed-price | Short
Fair value of financial instruments
Net Long (Short) Notional Units (in barrels) | bbl	4,359	1,961
Propane fixed-price
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ (1,332)	$ 608
Propane fixed-price | Long
Fair value of financial instruments
Net Long (Short) Notional Units (in barrels) | bbl	271	198
Refined products fixed-price
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ (1,103)	$ 376
Refined products fixed-price | Short
Fair value of financial instruments
Net Long (Short) Notional Units (in barrels) | bbl	327	177
Other
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ 4,909	$ 4,205

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - Gains (Losses) From Commodity Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Net adjustments to fair value of commodity derivatives	$ (15,100)	$ 69,700	$ 773	$ 30,031

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Interest Rate Risk (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Mar. 31, 2019
Interest Rate Risk
Term Credit Agreement	$ 3,093,303	$ 2,172,789
Revolving Credit Facility
Interest Rate Risk
Outstanding debt	$ 1,400,000
Interest rate	4.07%
Term Credit Agreement
Interest Rate Risk
Interest rate	4.74%
Term Credit Agreement
Interest Rate Risk
Term Credit Agreement	$ 250,000

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Fair Value of Fixed-Rate Notes (Details) $ in Thousands	Dec. 31, 2019USD ($)
7.50% Senior Notes due 2023
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Fair value of fixed-rate notes	$ 608,272
6.125% Senior Notes due 2025
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Fair value of fixed-rate notes	366,273
7.50% Senior Notes due 2026
Fair Value Disclosure, Asset and Liability, Not Measured at Fair Value [Line Items]
Fair value of fixed-rate notes	$ 436,478

Segments (Details)

Segments (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
Segment information
REVENUES	$ 2,226,529	$ 2,295,369	$ 5,902,756	$ 6,566,003
Depreciation and amortization, including amortization of debt issuance costs	76,916	55,605	198,613	165,266
Operating Income	96,395	144,449	174,030	31,035
Additions to property, plant and equipment and intangible assets	702,847	122,702	1,881,228	487,708
Long-lived assets, net	5,794,863		5,794,863		$ 3,740,285
Total assets	7,242,555		7,242,555		5,902,493
Operating segment | Crude oil logistics
Segment information
REVENUES	690,989	751,180	2,048,301	2,395,064
Depreciation and amortization, including amortization of debt issuance costs	17,950	18,387	53,228	56,566
Operating Income	28,696	32,022	101,018	(36,694)
Additions to property, plant and equipment and intangible assets	4,953	6,169	23,817	21,701
Long-lived assets, net	1,581,887		1,581,887		1,584,636
Total assets	2,155,695		2,155,695		2,237,612
Operating segment | Crude oil logistics | Crude oil sales
Segment information
REVENUES	646,296	718,621	1,925,039	2,300,703
Operating segment | Crude oil logistics | Crude oil transportation and other
Segment information
REVENUES	44,613	40,003	127,767	107,032
Operating segment | Crude oil logistics | Non-Topic 606 revenues
Segment information
REVENUES	3,585	2,909	10,825	9,291
Operating segment | Water solutions
Segment information
REVENUES	121,607	75,458	294,639	231,367
Depreciation and amortization, including amortization of debt issuance costs	48,184	27,561	114,438	79,212
Operating Income	(583)	86,737	34,380	97,476
Additions to property, plant and equipment and intangible assets	692,826	115,928	1,838,237	463,423
Long-lived assets, net	3,523,877		3,523,877		1,600,836
Total assets	3,676,248		3,676,248		1,668,292
Operating segment | Water solutions | Non-Topic 606 revenues
Segment information
REVENUES	0	14	0	39
Operating segment | Water solutions | Service fees
Segment information
REVENUES	94,218	55,470	226,635	167,573
Operating segment | Water solutions | Recovered hydrocarbons
Segment information
REVENUES	16,470	17,337	45,566	56,063
Operating segment | Water solutions | Freshwater revenues
Segment information
REVENUES	5,634	651	9,737	1,939
Operating segment | Water solutions | Other revenues
Segment information
REVENUES	5,285	1,986	12,701	5,753
Operating segment | Liquids
Segment information
REVENUES	685,625	749,433	1,361,781	1,759,772
Depreciation and amortization, including amortization of debt issuance costs	6,833	6,449	20,718	19,449
Operating Income	64,084	21,532	80,965	34,913
Additions to property, plant and equipment and intangible assets	2,641	357	13,465	1,738
Long-lived assets, net	616,602		616,602		498,767
Total assets	967,024		967,024		721,008
Operating segment | Liquids | Non-Topic 606 revenues
Segment information
REVENUES	5,506	6,314	14,658	16,506
Operating segment | Liquids | Other revenues
Segment information
REVENUES	5,181	7,616	22,230	17,509
Operating segment | Liquids | Propane sales
Segment information
REVENUES	309,668	372,224	564,820	793,605
Operating segment | Liquids | Butane sales
Segment information
REVENUES	226,730	222,412	396,776	481,459
Operating segment | Liquids | Other product sales
Segment information
REVENUES	145,082	151,246	376,148	471,547
Operating segment | Refined products and renewables
Segment information
REVENUES	728,028	718,979	2,197,236	2,178,734
Depreciation and amortization, including amortization of debt issuance costs	197	233	578	699
Operating Income	24,954	20,552	32,242	4,516
Additions to property, plant and equipment and intangible assets	0	0	224	0
Long-lived assets, net	38,790		38,790		29,477
Total assets	264,468		264,468		383,026
Operating segment | Refined products and renewables | Non-Topic 606 revenues
Segment information
REVENUES	100,438	68,199	255,090	233,775
Operating segment | Refined products and renewables | Refined products sales
Segment information
REVENUES	627,590	650,780	1,942,146	1,944,959
Operating segment | Corporate and other
Segment information
REVENUES	280	319	799	1,066
Operating segment | Corporate and other | Non-Topic 606 revenues
Segment information
REVENUES	280	319	799	1,066
Operating segment | Assets held for sale
Segment information
Total assets	95,093		95,093		815,536
Corporate and other
Segment information
Depreciation and amortization, including amortization of debt issuance costs	3,752	2,975	9,651	9,340
Operating Income	(20,756)	(16,394)	(74,575)	(69,176)
Additions to property, plant and equipment and intangible assets	2,427	248	5,485	846
Long-lived assets, net	33,707		33,707		26,569
Total assets	84,027		84,027		77,019
Elimination of intersegment sales | Crude oil logistics
Segment information
REVENUES	(3,505)	(10,353)	(15,330)	(21,962)
Elimination of intersegment sales | Liquids
Segment information
REVENUES	(6,542)	$ (10,379)	(12,851)	$ (20,854)
Non-US | Liquids
Segment information
Long-lived assets, net	28,900		28,900		500
Total assets	$ 48,700		$ 48,700		$ 12,000

Transactions with Affiliates (D

Transactions with Affiliates (Details) $ in Thousands	3 Months Ended				9 Months Ended
	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Mar. 31, 2019USD ($)	Sep. 30, 2018
Transactions with Affiliates
Accounts receivable-affiliates	$ 12,445				$ 12,445		$ 12,867
Accounts payable-affiliates	29,374				29,374		28,469
Ownership interest								50.00%
Number of transactions			2
Investment in NGL Energy Holdings LLC	(1,399)	$ (11,466)	$ (2,361)		15,226	$ 0
WPX Energy
Transactions with Affiliates
Sales to related party	13,888			$ 8,779	36,716	18,550
Purchases from related party	81,578			91,391	247,745	248,718
Accounts receivable-affiliates	3,573				3,573		5,185
Accounts payable-affiliates	28,509				28,509		27,844
SemGroup
Transactions with Affiliates
Sales to related party				257	458	926
Purchases from related party				0	0	1,337
Accounts receivable-affiliates							71
Entities affiliated with management
Transactions with Affiliates
Sales to related party	3,642			4,691	5,362	10,336
Purchases from related party	953			675	3,068	2,481
Accounts receivable-affiliates	540				540		334
Accounts payable-affiliates	629				629		625
NGL Energy Holdings LLC
Transactions with Affiliates
Accounts receivable-affiliates	$ 8,332				$ 8,332		7,277
Ownership interest in NGL Energy Holdings LLC	1.08%	5.73%	1.89%		1.08%
Equity method investee
Transactions with Affiliates
Purchases from related party	$ 188			$ 0	$ 317	$ 0
Accounts payable-affiliates	$ 236				$ 236		$ 0
Aircraft Company | Operating segment | Corporate and other | KAIR2014 LLC
Transactions with Affiliates
Ownership interest			50.00%
Equity method investment, original cost			$ 900

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Revenue Agreements (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Net adjustments to fair value of commodity derivatives	$ (15,100)	$ 69,700	$ 773	$ 30,031
Refined products and renewables
Net adjustments to fair value of commodity derivatives			$ (1,200)

Revenue from Contracts with C_5

Revenue from Contracts with Customers - Performance Obligations (Details) $ in Thousands	Dec. 31, 2019USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2019-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue expected to be recognized as of December 31, 2019	$ 69,796
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	3 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue expected to be recognized as of December 31, 2019	$ 217,453
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue expected to be recognized as of December 31, 2019	$ 208,223
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue expected to be recognized as of December 31, 2019	$ 202,046
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue expected to be recognized as of December 31, 2019	$ 171,541
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue expected to be recognized as of December 31, 2019	$ 305,061
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: (nil)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period
Revenue expected to be recognized as of December 31, 2019	$ 1,174,120

Revenue from Contracts with C_6

Revenue from Contracts with Customers - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Dec. 31, 2019	Mar. 31, 2019
Contract with Customer, Asset and Liability [Abstract]
Accounts receivable from contracts with customers	$ 602,350	$ 613,827
Contract liabilities balance	29,993	$ 8,461
Payment received and deferred	49,098
Payment recognized in revenue	$ (27,566)

Leases - Lessee Impact of Adopt

Leases - Lessee Impact of Adoption (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Apr. 01, 2019	Mar. 31, 2019
Leases [Abstract]
Operating lease right-of-use asset	$ 183,141	$ 551,200	$ 0
Operating lease obligation	$ 179,889	$ 549,000

Leases - Lessee Balance Sheet a

Leases - Lessee Balance Sheet and Income Statement Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Apr. 01, 2019	Mar. 31, 2019
Lessee Description
Operating lease right-of-use asset	$ 183,141		$ 183,141		$ 551,200	$ 0
Operating lease obligation-current	57,091		57,091			0
Operating lease obligation-noncurrent	$ 122,798		$ 122,798			$ 0
Weighted-average remaining lease term	6 years 5 months 15 days		6 years 5 months 15 days
Weighted-average discount rate	5.81%		5.81%
Lease Cost
Operating lease cost	$ 22,320		$ 66,707
Variable lease cost	6,170		11,835
Short-term lease cost	219		478
Total lease cost	$ 28,709		$ 79,020
Rental expense		$ 22,000		$ 69,100
Minimum
Lessee Description
Lessee, operating lease renewal term	1 year		1 year
Maximum
Lessee Description
Lessee, operating lease renewal term	30 years		30 years

Leases - Lessee Maturities of O

Leases - Lessee Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Apr. 01, 2019
Leases [Abstract]
2020 (three months)	$ 17,154
2021	60,126
2022	41,674
2023	28,974
2024	17,139
Thereafter	59,910
Total lease payments	224,977
Less imputed interest	(45,088)
Total operating lease liabilities	$ 179,889	$ 549,000

Leases - Lessee Future Minimum

Leases - Lessee Future Minimum Lease Payments (Details) $ in Thousands	Mar. 31, 2019USD ($)
Leases [Abstract]
2020	$ 78,348
2021	60,417
2022	43,259
2023	29,252
2024	18,341
Thereafter	41,845
Total	$ 271,462

Leases - Lessee Supplemental Ca

Leases - Lessee Supplemental Cash Flow and Non-Cash Information (Details) $ in Thousands	9 Months Ended
	Dec. 31, 2019USD ($)
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease liabilities	$ 81,779
Operating lease right-of-use assets obtained in exchange for operating lease obligations	$ 584,538

Leases - Lessor Income Statemen

Leases - Lessor Income Statement Information (Details) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2019USD ($)	Dec. 31, 2019USD ($)
Lessor Description
Operating lease revenues	$ 4.9	$ 15.8
Sublease revenue	$ 1.3	$ 3.7
Minimum
Lessor Description
Lessor, operating lease renewal term	1 year	1 year
Maximum
Lessor Description
Lessor, operating lease renewal term	5 years	5 years

Leases - Lessor Future Minimum

Leases - Lessor Future Minimum Lease Payments Receivable (Details) $ in Thousands	Dec. 31, 2019USD ($)
Leases [Abstract]
2020 (three months)	$ 4,814
2021	16,190
2022	6,634
2023	5,387
2024	5,057
Thereafter	16,282
Total	$ 54,364

Assets and Liabilities Held f_3

Assets and Liabilities Held for Sale and Discontinued Operations (Details) $ in Thousands, gal in Millions	3 Months Ended		9 Months Ended
	Dec. 31, 2019USD ($)gal	Dec. 31, 2018USD ($)	Dec. 31, 2019USD ($)gal	Dec. 31, 2018USD ($)	Mar. 31, 2019USD ($)bbl
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of barrels of refined product | bbl					389,737
(Gain) loss on disposal or impairment of assets, net	$ 7,791	$ (263)	$ 182,240	$ (407,646)
Net loss attributable to redeemable noncontrolling interest	0	0	0	(446)
Amount received from Trajectory for finished gasoline sales	3,600		3,600
Amount paid to Trajectory for finished gasoline purchases	1,800		1,800
Amount received from DCC and Superior for propane sales	3,800		7,500
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract]
Accounts receivable-trade, net	0		0		$ 164,716
Inventories	44,500		44,500		327,015
Operating lease right-of-use assets	19,873		19,873		0
Prepaid expenses and other current assets	28,027		28,027		89,254
Disposal Group, Including Discontinued Operation, Goodwill, Current	2,693		2,693		0
Total current assets held for sale	95,093		95,093		580,985
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation	0		0		15,553
Goodwill	0		0		35,405
INTANGIBLE ASSETS, net of accumulated amortization	0		0		137,446
Other noncurrent assets	0		0		46,147
Total noncurrent assets held for sale	0		0		234,551
Total assets held for sale	95,093		95,093		815,536
Accounts payable-trade	0		0		85,602
Accrued expenses and other payables	21,026		21,026		140,691
Advance payments received from customers	0		0		460
Operating lease obligations	19,873		19,873		0
Total current liabilities held for sale	40,899		40,899		226,753
Other noncurrent liabilities	0		0		33
Total noncurrent liabilities held for sale	0		0		33
Total liabilities held for sale	40,899		40,899		$ 226,786
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenues	1,938,398	4,081,451	10,493,630	12,380,744
Cost of sales	1,936,324	4,065,723	10,497,492	12,310,152
Operating expenses	397	2,587	5,898	34,572
General and administrative expense	0	20	53	2,699
Depreciation and amortization	0	153	749	9,164
(Gain) loss on disposal or impairment of assets, net	7,791	(263)	182,240	(407,646)
Operating (loss) income from discontinued operations	(6,114)	13,231	(192,802)	431,803
Equity in earnings of unconsolidated entities	0	0	0	1,183
Interest expense	(1)	0	(111)	(126)
Other income, net	0	105	133	773
(Loss) income from discontinued operations before taxes (2)	(6,115)	13,336	(192,780)	433,633
Income tax expense	0	(7)	(20)	(132)
(Loss) income from discontinued operations, net of tax	$ (6,115)	$ 13,329	$ (192,800)	433,501
Finished gasoline
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase commitments (in gallons) | gal	1.1		1.1
Purchase commitments (in dollars)	$ 1,700		$ 1,700
Propane sales
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale commitments (in gallons) | gal	30.9		30.9
Sale commitments (in dollars)	$ 18,100		$ 18,100
TransMontaigne Product Services, LLC
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain) loss on disposal or impairment of assets, net			181,200
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
(Gain) loss on disposal or impairment of assets, net			181,200
Retail Propane Segment - East
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain) loss on disposal or impairment of assets, net			1,000	(408,900)
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
(Gain) loss on disposal or impairment of assets, net			$ 1,000	(408,900)
Retail Propane Segment - West
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
(Gain) loss on disposal or impairment of assets, net				1,300
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
(Gain) loss on disposal or impairment of assets, net				$ 1,300

Subsequent Events Subsequent Ev

Subsequent Events Subsequent Events (Details) - Refined products and renewables - Subsequent Event - USD ($) $ in Millions	Jan. 31, 2020	Jan. 03, 2020
Mid-Con
Subsequent Event
Payments made to sell business		$ 6.3
TransMontaigne Product Services, LLC
Subsequent Event
Payments made to sell business	$ 41.7

Unaudited Condensed Consolida_8

Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Unaudited Condensed Consolidating Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Apr. 01, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018
CURRENT ASSETS:
Cash and cash equivalents	$ 12,008				$ 18,572	$ 23,025			$ 22,094
Accounts receivable-trade, net of allowance for doubtful accounts	947,534				998,203
Accounts receivable-affiliates	12,445				12,867
Inventories	183,738				136,128
Prepaid expenses and other current assets	90,694				65,918
Assets held for sale	95,093				580,985
Total current assets	1,341,512				1,812,673
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation	2,704,112				1,828,940
GOODWILL	1,307,055				1,110,456
INTANGIBLE ASSETS, net of accumulated amortization	1,600,555				800,889
INVESTMENTS IN UNCONSOLIDATED ENTITIES	22,236				1,127
OPERATING LEASE RIGHT-OF-USE ASSETS	183,141			$ 551,200	0
OTHER NONCURRENT ASSETS	83,944				113,857
ASSETS HELD FOR SALE	0				234,551
Total assets	7,242,555				5,902,493
CURRENT LIABILITIES:
Accounts payable-trade	846,767				879,063
Accounts payable-affiliates	29,374				28,469
Accrued expenses and other payables	352,848				107,759
Advance payments received from customers	29,993				8,461
Current maturities of long-term debt	4,835				648
Liabilities held for sale	40,899				226,753
Operating lease obligations	57,091				0
Total current liabilities	1,361,807				1,251,153
LONG-TERM DEBT, net of debt issuance costs and current maturities	3,068,205				2,160,133
OPERATING LEASE OBLIGATIONS	122,798				0
OTHER NONCURRENT LIABILITIES	104,060				63,542
NONCURRENT LIABILITIES HELD FOR SALE	0				33
EQUITY:
Partners’ equity	1,979,426				2,219,325
Accumulated other comprehensive income (loss)	(248)				(255)
Noncontrolling interests	74,739				58,748
Total equity	2,053,917	$ 2,051,911	$ 2,150,265		2,277,818	2,315,441	$ 2,277,414	$ 1,971,428	2,086,095
Total liabilities and equity	7,242,555				5,902,493
Reportable Entity | NGL Energy Partners LP (Parent)
CURRENT ASSETS:
Cash and cash equivalents	182,635				12,798	5,892			16,915
Total current assets	182,635				12,798
NET INTERCOMPANY RECEIVABLES (PAYABLES)	1,768,795				862,186
INVESTMENTS IN CONSOLIDATED SUBSIDIARIES	2,019,081				2,503,848
Total assets	3,970,511				3,378,832
CURRENT LIABILITIES:
Accounts payable-affiliates	1				1
Accrued expenses and other payables	30,537				25,497
Current maturities of long-term debt	0				0
Total current liabilities	30,538				25,498
LONG-TERM DEBT, net of debt issuance costs and current maturities	1,429,027				984,450
EQUITY:
Partners’ equity	1,979,178				2,219,070
Total equity	1,979,178				2,219,070
Total liabilities and equity	3,970,511				3,378,832
Reportable Entity | Guarantor Subsidiaries
CURRENT ASSETS:
Cash and cash equivalents	(174,771)				3,728	14,883			3,329
Accounts receivable-trade, net of allowance for doubtful accounts	947,307				996,192
Accounts receivable-affiliates	12,445				12,867
Inventories	182,977				135,094
Prepaid expenses and other current assets	90,239				65,443
Assets held for sale	95,093				580,985
Total current assets	1,153,290				1,794,309
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation	2,510,670				1,620,084
GOODWILL	1,301,880				1,105,281
INTANGIBLE ASSETS, net of accumulated amortization	1,530,120				725,542
INVESTMENTS IN UNCONSOLIDATED ENTITIES	22,236				1,127
NET INTERCOMPANY RECEIVABLES (PAYABLES)	(1,699,213)				(808,610)
INVESTMENTS IN CONSOLIDATED SUBSIDIARIES	123,793				170,690
OPERATING LEASE RIGHT-OF-USE ASSETS	178,607
OTHER NONCURRENT ASSETS	83,944				113,857
ASSETS HELD FOR SALE					234,551
Total assets	5,205,327				4,956,831
CURRENT LIABILITIES:
Accounts payable-trade	846,667				872,122
Accounts payable-affiliates	29,373				28,468
Accrued expenses and other payables	321,126				80,765
Advance payments received from customers	27,108				7,550
Current maturities of long-term debt	4,835				648
Liabilities held for sale	40,899				226,753
Operating lease obligations	56,747
Total current liabilities	1,326,755				1,216,306
LONG-TERM DEBT, net of debt issuance costs and current maturities	1,639,178				1,175,683
OPERATING LEASE OBLIGATIONS	118,847
OTHER NONCURRENT LIABILITIES	101,466				60,961
NONCURRENT LIABILITIES HELD FOR SALE					33
EQUITY:
Partners’ equity	2,019,081				2,503,848
Accumulated other comprehensive income (loss)	0				0
Total equity	2,019,081				2,503,848
Total liabilities and equity	5,205,327				4,956,831
Reportable Entity | Non-Guarantor Subsidiaries
CURRENT ASSETS:
Cash and cash equivalents	4,144				2,046	$ 2,250			$ 1,850
Accounts receivable-trade, net of allowance for doubtful accounts	227				2,011
Accounts receivable-affiliates	0
Inventories	761				1,034
Prepaid expenses and other current assets	455				475
Total current assets	5,587				5,566
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation	193,442				208,856
GOODWILL	5,175				5,175
INTANGIBLE ASSETS, net of accumulated amortization	70,435				75,347
NET INTERCOMPANY RECEIVABLES (PAYABLES)	(69,582)				(53,576)
OPERATING LEASE RIGHT-OF-USE ASSETS	4,534
OTHER NONCURRENT ASSETS	0
Total assets	209,591				241,368
CURRENT LIABILITIES:
Accounts payable-trade	100				6,941
Accrued expenses and other payables	1,185				1,497
Advance payments received from customers	2,885				911
Operating lease obligations	344
Total current liabilities	4,514				9,349
OPERATING LEASE OBLIGATIONS	3,951
OTHER NONCURRENT LIABILITIES	2,594				2,581
EQUITY:
Partners’ equity	198,780				229,693
Accumulated other comprehensive income (loss)	(248)				(255)
Total equity	198,532				229,438
Total liabilities and equity	209,591				241,368
Consolidating Adjustments
CURRENT ASSETS:
INVESTMENTS IN CONSOLIDATED SUBSIDIARIES	(2,142,874)				(2,674,538)
Total assets	(2,142,874)				(2,674,538)
EQUITY:
Partners’ equity	(2,217,613)				(2,733,286)
Noncontrolling interests	74,739				58,748
Total equity	(2,142,874)				(2,674,538)
Total liabilities and equity	(2,142,874)				(2,674,538)
Class A Convertible Preferred Units
CURRENT LIABILITIES:
CONVERTIBLE PREFERRED UNITS	0				149,814
Class A Convertible Preferred Units | Reportable Entity | NGL Energy Partners LP (Parent)
CURRENT LIABILITIES:
CONVERTIBLE PREFERRED UNITS					149,814
Class D Preferred Units
CURRENT LIABILITIES:
CONVERTIBLE PREFERRED UNITS	531,768				$ 0
Class D Preferred Units | Reportable Entity | NGL Energy Partners LP (Parent)
CURRENT LIABILITIES:
CONVERTIBLE PREFERRED UNITS	$ 531,768

Unaudited Condensed Consolida_9

Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Unaudited Condensed Consolidating Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018
Unaudited Condensed Consolidating Statement of Operations
REVENUES	$ 2,226,529	$ 2,295,369	$ 5,902,756	$ 6,566,003
COST OF SALES	1,935,472	2,048,661	5,214,605	6,046,673
OPERATING COSTS AND EXPENSES:
Operating	94,412	60,465	230,610	172,219
General and administrative	29,150	24,759	93,400	86,428
Depreciation and amortization	73,726	53,281	190,593	157,771
(Gain) loss on disposal or impairment of assets, net	(12,626)	(36,246)	(10,482)	71,077
Revaluation of liabilities	10,000	0	10,000	800
Operating Income	96,395	144,449	174,030	31,035
OTHER INCOME (EXPENSE):
Equity in earnings of unconsolidated entities	534	1,777	277	2,375
Interest expense	(46,920)	(39,151)	(131,814)	(126,776)
(Loss) gain on early extinguishment of liabilities, net	0	(10,083)	0	(10,220)
Other (expense) income, net	(226)	1,187	967	(31,415)
Income (Loss) From Continuing Operations Before Income Taxes	49,783	98,179	43,460	(135,001)
INCOME TAX EXPENSE	(677)	(980)	(996)	(2,322)
Income (Loss) From Continuing Operations	49,106	97,199	42,464	(137,323)
(Loss) Income From Discontinued Operations, net of Tax	(6,115)	13,329	(192,800)	433,501
Net Income (Loss)	42,991	110,528	(150,336)	296,178
LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	166	307	563	1,170
LESS: NET LOSS ATTRIBUTABLE TO REDEEMABLE NONCONTROLLING INTERESTS	0	0	0	446
NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	43,157	110,835	(149,773)	297,794
Reportable Entity | NGL Energy Partners LP (Parent)
OTHER INCOME (EXPENSE):
Interest expense	(26,664)	(24,026)	(79,119)	(83,011)
(Loss) gain on early extinguishment of liabilities, net		(10,083)		(10,220)
Income (Loss) From Continuing Operations Before Income Taxes	(26,664)	(34,109)	(79,119)	(93,231)
EQUITY IN NET INCOME (LOSS) OF CONSOLIDATED SUBSIDIARIES	69,821	144,944	(70,654)	391,025
Income (Loss) From Continuing Operations	43,157	110,835	(149,773)	297,794
(Loss) Income From Discontinued Operations, net of Tax	0	0	0	0
Net Income (Loss)	43,157	110,835	(149,773)	297,794
NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	43,157	110,835	(149,773)	297,794
Reportable Entity | Guarantor Subsidiaries
Unaudited Condensed Consolidating Statement of Operations
REVENUES	2,223,900	2,292,268	5,869,693	6,558,089
COST OF SALES	1,937,767	2,049,328	5,218,841	6,049,032
OPERATING COSTS AND EXPENSES:
Operating	92,180	58,389	217,662	166,013
General and administrative	28,952	24,599	92,730	85,737
Depreciation and amortization	70,396	50,724	180,630	150,093
(Gain) loss on disposal or impairment of assets, net	(12,626)	(36,246)	(10,478)	71,077
Revaluation of liabilities	10,000		10,000	800
Operating Income	97,231	145,474	160,308	35,337
OTHER INCOME (EXPENSE):
Equity in earnings of unconsolidated entities	534	1,777	277	2,375
Interest expense	(20,241)	(15,124)	(52,680)	(43,764)
(Loss) gain on early extinguishment of liabilities, net		0		0
Other (expense) income, net	(229)	1,198	947	(31,196)
Income (Loss) From Continuing Operations Before Income Taxes	77,295	133,325	108,852	(37,248)
INCOME TAX EXPENSE	(677)	(980)	(996)	(2,322)
EQUITY IN NET INCOME (LOSS) OF CONSOLIDATED SUBSIDIARIES	(682)	(730)	14,290	(3,750)
Income (Loss) From Continuing Operations	75,936	131,615	122,146	(43,320)
(Loss) Income From Discontinued Operations, net of Tax	(6,115)	13,329	(192,800)	434,345
Net Income (Loss)	69,821	144,944	(70,654)	391,025
NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	69,821	144,944	(70,654)	391,025
Reportable Entity | Non-Guarantor Subsidiaries
Unaudited Condensed Consolidating Statement of Operations
REVENUES	5,127	4,286	38,501	10,768
COST OF SALES	36	518	535	495
OPERATING COSTS AND EXPENSES:
Operating	2,399	2,076	13,615	6,206
General and administrative	198	160	670	691
Depreciation and amortization	3,330	2,557	9,963	7,678
(Gain) loss on disposal or impairment of assets, net	0	0	(4)	0
Revaluation of liabilities	0		0	0
Operating Income	(836)	(1,025)	13,722	(4,302)
OTHER INCOME (EXPENSE):
Interest expense	(26)	(12)	(49)	(35)
Other (expense) income, net	14	0	54	0
Income (Loss) From Continuing Operations Before Income Taxes	(848)	(1,037)	13,727	(4,337)
INCOME TAX EXPENSE	0	0	0	0
Income (Loss) From Continuing Operations	(848)	(1,037)	13,727	(4,337)
(Loss) Income From Discontinued Operations, net of Tax	0	0	0	(1,029)
Net Income (Loss)	(848)	(1,037)	13,727	(5,366)
NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	(848)	(1,037)	13,727	(5,366)
Consolidating Adjustments
Unaudited Condensed Consolidating Statement of Operations
REVENUES	(2,498)	(1,185)	(5,438)	(2,854)
COST OF SALES	(2,331)	(1,185)	(4,771)	(2,854)
OPERATING COSTS AND EXPENSES:
Operating	(167)		(667)
OTHER INCOME (EXPENSE):
Interest expense	11	11	34	34
Other (expense) income, net	(11)	(11)	(34)	(219)
Income (Loss) From Continuing Operations Before Income Taxes	0	0	0	(185)
EQUITY IN NET INCOME (LOSS) OF CONSOLIDATED SUBSIDIARIES	(69,139)	(144,214)	56,364	(387,275)
Income (Loss) From Continuing Operations	(69,139)	(144,214)	56,364	(387,460)
(Loss) Income From Discontinued Operations, net of Tax	0	0	0	185
Net Income (Loss)	(69,139)	(144,214)	56,364	(387,275)
LESS: NET LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	166	307	563	1,170
LESS: NET LOSS ATTRIBUTABLE TO REDEEMABLE NONCONTROLLING INTERESTS				446
NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	$ (68,973)	$ (143,907)	$ 56,927	$ (385,659)

Unaudited Condensed Consolid_10

Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Unaudited Condensed Consolidating Statements of Comprehensive Income (Loss) (Details) - USD ($)	3 Months Ended						9 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018
Unaudited Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	$ 42,991,000			$ 110,528,000			$ (150,336,000)	$ 296,178,000
Other comprehensive income (loss)	16,000	$ (46,000)	$ 37,000	(3,000)	$ (13,000)	$ (11,000)	7,000	(27,000)
Comprehensive income (loss)	43,007,000			110,525,000			(150,329,000)	296,151,000
Reportable Entity | NGL Energy Partners LP (Parent)
Unaudited Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	43,157,000			110,835,000			(149,773,000)	297,794,000
Comprehensive income (loss)	43,157,000			110,835,000			(149,773,000)	297,794,000
Reportable Entity | Guarantor Subsidiaries
Unaudited Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	69,821,000			144,944,000			(70,654,000)	391,025,000
Other comprehensive income (loss)	(1,000)			0			17,000	(1,000)
Comprehensive income (loss)	69,820,000			144,944,000			(70,637,000)	391,024,000
Reportable Entity | Non-Guarantor Subsidiaries
Unaudited Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	(848,000)			(1,037,000)			13,727,000	(5,366,000)
Other comprehensive income (loss)	17,000			(3,000)			(10,000)	(26,000)
Comprehensive income (loss)	(831,000)			(1,040,000)			13,717,000	(5,392,000)
Consolidating Adjustments
Unaudited Condensed Consolidating Statement of Comprehensive Income (Loss)
Net income (loss)	(69,139,000)			(144,214,000)			56,364,000	(387,275,000)
Comprehensive income (loss)	$ (69,139,000)			$ (144,214,000)			$ 56,364,000	$ (387,275,000)

Unaudited Condensed Consolid_11

Unaudited Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Unaudited Condensed Consolidating Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended				9 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2019	Dec. 31, 2018	Mar. 31, 2019
OPERATING ACTIVITIES:
Net cash (used in) provided by operating activities-continuing operations					$ 273,588	$ 3,195
Net cash provided by operating activities-discontinued operations					59,890	112,463
Net cash provided by operating activities					333,478	115,658
INVESTING ACTIVITIES:
Capital expenditures					(427,253)	(303,989)
Acquisitions, net of cash acquired					(1,262,853)	(197,971)
Net settlements of commodity derivatives					2,735	5,066
Proceeds from sales of assets					17,056	8,335
Proceeds from divestitures of businesses and investments, net					0	103,594
Investments in unconsolidated entities					(21,272)	(92)
Distributions of capital from unconsolidated entities					440	0
Repayments on loan for natural gas liquids facility					3,022	8,371
Loan to affiliate					0	(1,515)
Net cash used in investing activities-continuing operations					(1,688,125)	(378,201)
Net cash provided by investing activities-discontinued operations					281,908	936,691
Net cash (used in) provided by investing activities					(1,406,217)	558,490
FINANCING ACTIVITIES:
Proceeds from borrowings under Revolving Credit Facility					3,461,000	2,956,500
Payments on Revolving Credit Facility					(3,240,000)	(3,037,000)
Issuance of senior unsecured notes and term credit agreement					700,000	0
Repayment and repurchase of senior unsecured notes					0	(395,471)
Payments on other long-term debt					(489)	(488)
Debt issuance costs					(13,198)	(915)
Contributions from noncontrolling interest owners, net					0	169
Distributions to general and common unit partners and preferred unitholders					(180,021)	(177,003)
Distributions to noncontrolling interest owners					(570)	0
Proceeds from sale of preferred units, net of offering costs					622,965	0
Payments for redemption of preferred units					(265,128)	0
Repurchase of warrants				$ (14,988)	0	(14,988)
Common unit repurchases and cancellations					(1,205)	(162)
Payments for settlement and early extinguishment of liabilities					(1,953)	(3,534)
Investment in NGL Energy Holdings LLC	$ 1,399	$ 11,466	$ 2,361		(15,226)	0
Net cash used in financing activities-continuing operations					1,066,175	(672,892)
Net cash used in financing activities-discontinued operations					0	(325)
Net cash provided by (used in) financing activities					1,066,175	(673,217)
Net (decrease) increase in cash and cash equivalents					(6,564)	931
Cash and cash equivalents, beginning of period			18,572	22,094	18,572	22,094
Cash and cash equivalents, end of period	12,008				12,008	23,025
Reportable Entity | NGL Energy Partners LP (Parent)
OPERATING ACTIVITIES:
Net cash (used in) provided by operating activities-continuing operations					(74,889)	(92,619)
Net cash provided by operating activities					(74,889)	(92,619)
FINANCING ACTIVITIES:
Issuance of senior unsecured notes and term credit agreement					450,000
Repayment and repurchase of senior unsecured notes						(395,471)
Debt issuance costs					(8,034)	(16)
Distributions to general and common unit partners and preferred unitholders					(180,021)	(177,003)
Proceeds from sale of preferred units, net of offering costs					622,965
Payments for redemption of preferred units					(265,128)
Repurchase of warrants						(14,988)
Common unit repurchases and cancellations					(1,205)	(162)
Investment in NGL Energy Holdings LLC					(15,226)
Net changes in advances with consolidated entities					(358,625)	669,236
Net cash used in financing activities-continuing operations						81,596
Net cash provided by (used in) financing activities					244,726	81,596
Net (decrease) increase in cash and cash equivalents					169,837	(11,023)
Cash and cash equivalents, beginning of period			12,798	16,915	12,798	16,915
Cash and cash equivalents, end of period	182,635				182,635	5,892
Reportable Entity | Guarantor Subsidiaries
OPERATING ACTIVITIES:
Net cash (used in) provided by operating activities-continuing operations					308,905	92,240
Net cash provided by operating activities-discontinued operations					59,890	109,242
Net cash provided by operating activities					368,795	201,482
INVESTING ACTIVITIES:
Capital expenditures					(380,050)	(301,883)
Acquisitions, net of cash acquired					(1,262,853)	(194,044)
Net settlements of commodity derivatives					2,735	5,066
Proceeds from sales of assets					17,052	8,335
Proceeds from divestitures of businesses and investments, net						103,594
Investments in unconsolidated entities					(21,272)	(92)
Distributions of capital from unconsolidated entities					440
Repayments on loan for natural gas liquids facility					3,022	8,371
Loan to affiliate						(1,515)
Net cash used in investing activities-continuing operations					(1,640,926)	(372,168)
Net cash provided by investing activities-discontinued operations					281,908	929,709
Net cash (used in) provided by investing activities					(1,359,018)	557,541
FINANCING ACTIVITIES:
Proceeds from borrowings under Revolving Credit Facility					3,461,000	2,956,500
Payments on Revolving Credit Facility					(3,240,000)	(3,037,000)
Issuance of senior unsecured notes and term credit agreement					250,000
Payments on other long-term debt					(489)	(488)
Debt issuance costs					(5,164)	(899)
Payments for settlement and early extinguishment of liabilities					(1,953)	(3,534)
Net changes in advances with consolidated entities					348,330	(661,753)
Net cash used in financing activities-continuing operations						(747,174)
Net cash used in financing activities-discontinued operations						(295)
Net cash provided by (used in) financing activities					811,724	(747,469)
Net (decrease) increase in cash and cash equivalents					(178,499)	11,554
Cash and cash equivalents, beginning of period			3,728	3,329	3,728	3,329
Cash and cash equivalents, end of period	(174,771)				(174,771)	14,883
Reportable Entity | Non-Guarantor Subsidiaries
OPERATING ACTIVITIES:
Net cash (used in) provided by operating activities-continuing operations					39,572	3,759
Net cash provided by operating activities-discontinued operations					0	3,221
Net cash provided by operating activities					39,572	6,980
INVESTING ACTIVITIES:
Capital expenditures					(47,203)	(2,106)
Acquisitions, net of cash acquired					0	(3,927)
Proceeds from sales of assets					4	0
Net cash used in investing activities-continuing operations					(47,199)	(6,033)
Net cash provided by investing activities-discontinued operations					0	6,982
Net cash (used in) provided by investing activities					(47,199)	949
FINANCING ACTIVITIES:
Payments on other long-term debt					0	0
Contributions from noncontrolling interest owners, net						169
Distributions to noncontrolling interest owners					(570)
Net changes in advances with consolidated entities					10,295	(7,668)
Net cash used in financing activities-continuing operations						(7,499)
Net cash used in financing activities-discontinued operations						(30)
Net cash provided by (used in) financing activities					9,725	(7,529)
Net (decrease) increase in cash and cash equivalents					2,098	400
Cash and cash equivalents, beginning of period			$ 2,046	$ 1,850	2,046	1,850
Cash and cash equivalents, end of period	4,144				4,144	2,250
Consolidating Adjustments
OPERATING ACTIVITIES:
Net cash (used in) provided by operating activities-continuing operations						(185)
Net cash provided by operating activities-discontinued operations						0
Net cash provided by operating activities						(185)
FINANCING ACTIVITIES:
Net changes in advances with consolidated entities						185
Net cash used in financing activities-continuing operations						185
Net cash provided by (used in) financing activities						$ 185
Class A Convertible Preferred Units
Unaudited Condensed Consolidating Statement of Cash Flows
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests	0				0		$ 149,814
Class A Convertible Preferred Units | Reportable Entity | NGL Energy Partners LP (Parent)
Unaudited Condensed Consolidating Statement of Cash Flows
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests							149,814
Class D Preferred Units
Unaudited Condensed Consolidating Statement of Cash Flows
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests	531,768				531,768		$ 0
Class D Preferred Units | Reportable Entity | NGL Energy Partners LP (Parent)
Unaudited Condensed Consolidating Statement of Cash Flows
Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests	$ 531,768				$ 531,768