NGL Energy Partners (NGL) 10-Q 9 Nov 20 2021 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Sep. 30, 2020	Nov. 05, 2020
Entity Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2020
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 Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		128,771,715
Entity Central Index Key	0001504461
Amendment Flag	false
Current Fiscal Year End Date	--03-31
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
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	6 Months Ended
	Sep. 30, 2020	Mar. 31, 2020
CURRENT ASSETS:
Cash and cash equivalents	$ 16,912	$ 22,704
Accounts receivable-trade, net of allowance for expected credit losses of $3,399 and $4,540, respectively	439,889	566,834
Accounts receivable-affiliates	14,904	12,934
Inventories	182,859	69,634
Prepaid expenses and other current assets	74,150	101,981
Total current assets	728,714	774,087
PROPERTY, PLANT AND EQUIPMENT, net of accumulated depreciation of $619,820 and $529,068, respectively	2,799,725	2,851,555
PROPERTY, PLANT AND EQUIPMENT, accumulated depreciation	(619,820)	(529,068)
GOODWILL	982,239	993,587
INTANGIBLE ASSETS, net of accumulated amortization of $706,259 and $631,449, respectively	1,538,417	1,612,480
INTANGIBLE ASSETS, accumulated amortization	(706,259)	(631,449)
INVESTMENTS IN UNCONSOLIDATED ENTITIES	21,215	23,182
OPERATING LEASE RIGHT-OF-USE ASSETS	168,349	180,708
OTHER NONCURRENT ASSETS	47,752	63,137
Total assets	6,286,411	6,498,736
CURRENT LIABILITIES:
Accounts payable-trade	379,420	515,049
Accounts payable-affiliates	23,985	17,717
Accrued expenses and other payables	138,572	232,062
Advance payments received from customers	24,143	19,536
Current maturities of long-term debt	13,123	4,683
Operating lease obligations	50,709	56,776
Total current liabilities	629,952	845,823
LONG-TERM DEBT, net of debt issuance costs of $22,267 and $19,795, respectively, and current maturities	3,275,166	3,144,848
Debt issuance costs, noncurrent, net	(22,267)	(19,795)
OPERATING LEASE OBLIGATIONS	114,833	121,013
OTHER NONCURRENT LIABILITIES	105,835	114,079
COMMITMENTS AND CONTINGENCIES (NOTE 9)
EQUITY:
General partner, representing a 0.1% interest, 128,901 and 128,901 notional units, respectively	(51,518)	(51,390)
Limited partners, representing a 99.9% interest, 128,771,715 and 128,771,715 common units issued and outstanding, respectively	1,242,676	1,366,152
Accumulated other comprehensive loss	(307)	(385)
Noncontrolling interests	70,318	72,954
Total equity	1,609,528	1,735,690
Total liabilities and equity	$ 6,286,411	$ 6,498,736
General Partner
EQUITY:
General partner interest	0.10%
General partner, notional units outstanding (in units)	128,901	128,901
Limited Partner
EQUITY:
Limited partner interest	99.90%
Limited partners, common units issued and outstanding (in units)	128,771,715	128,771,715
Class D Preferred Units
CURRENT LIABILITIES:
PREFERRED UNITS	$ 551,097	$ 537,283
Preferred units dividend rate	9.00%
Temporary equity, issued and outstanding (in units)	600,000	600,000
Class B Perpetual Preferred Units
EQUITY:
Preferred limited partners	$ 305,468	$ 305,468
Preferred units, issued and outstanding (in units)	12,585,642	12,585,642
Class C Perpetual Preferred Units
EQUITY:
Preferred limited partners	$ 42,891	$ 42,891
Preferred units, issued and outstanding (in units)	1,800,000	1,800,000
Trade Accounts Receivable
CURRENT ASSETS:
Accounts receivable, allowance for expected credit loss	$ 3,399	$ 4,540

Unaudited Condensed Consolida_2

Unaudited Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
REVENUES:
Crude Oil Logistics	$ 466,841	$ 641,152	$ 742,880	$ 1,357,312
Water Solutions	88,678	101,249	176,743	173,032
Liquids and Refined Products	612,324	1,061,671	1,092,322	2,145,364
Other	315	264	628	519
Total Revenues	1,168,158	1,804,336	2,012,573	3,676,227
COST OF SALES:
Crude Oil Logistics	386,771	569,699	604,328	1,218,939
Water Solutions	579	(6,496)	5,279	(9,303)
Liquids and Refined Products	577,086	1,025,565	1,031,422	2,068,597
Other	454	435	908	900
Total Cost of Sales	964,890	1,589,203	1,641,937	3,279,133
OPERATING COSTS AND EXPENSES:
Operating	56,054	74,886	121,041	136,198
General and administrative	17,475	43,908	34,633	64,250
Depreciation and amortization	87,469	63,113	171,455	116,867
Loss on disposal or impairment of assets, net	5,954	3,111	17,976	2,144
Operating Income	36,316	30,115	25,531	77,635
OTHER INCOME (EXPENSE):
Equity in earnings (loss) of unconsolidated entities	501	(265)	790	(257)
Interest expense	(46,935)	(45,017)	(90,896)	(84,894)
Gain on early extinguishment of liabilities, net	13,747	0	33,102	0
Other income, net	1,585	183	2,620	1,193
Income (Loss) From Continuing Operations Before Income Taxes	5,214	(14,984)	(28,853)	(6,323)
INCOME TAX BENEFIT (EXPENSE)	774	(640)	1,075	(319)
Income (Loss) From Continuing Operations	5,988	(15,624)	(27,778)	(6,642)
Loss From Discontinued Operations, net of Tax	(153)	(185,742)	(1,639)	(186,685)
Net Income (Loss)	5,835	(201,366)	(29,417)	(193,327)
LESS: NET (INCOME) LOSS ATTRIBUTABLE TO NONCONTROLLING INTERESTS	(168)	129	(219)	397
NET INCOME (LOSS) ATTRIBUTABLE TO NGL ENERGY PARTNERS LP	5,667	(201,237)	(29,636)	(192,930)
NET LOSS FROM CONTINUING OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	(17,933)	(32,561)	(73,748)	(152,687)
NET LOSS FROM DISCONTINUED OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)	(152)	(185,556)	(1,637)	(186,498)
NET LOSS ALLOCATED TO COMMON UNITHOLDERS	$ (18,085)	$ (218,117)	$ (75,385)	$ (339,185)
BASIC LOSS PER COMMON UNIT
Loss From Continuing Operations	$ (0.14)	$ (0.26)	$ (0.57)	$ (1.21)
Loss From Discontinued Operations, net of Tax	0	(1.46)	(0.01)	(1.47)
Net Loss	(0.14)	(1.72)	(0.58)	(2.68)
DILUTED LOSS PER COMMON UNIT
Loss From Continuing Operations	(0.14)	(0.26)	(0.57)	(1.21)
Loss From Discontinued Operations, net of Tax	0	(1.46)	(0.01)	(1.47)
Net Loss	$ (0.14)	$ (1.72)	$ (0.58)	$ (2.68)
BASIC WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	128,771,715	126,979,034	128,771,715	126,435,870
DILUTED WEIGHTED AVERAGE COMMON UNITS OUTSTANDING (in units)	128,771,715	126,979,034	128,771,715	126,435,870

Unaudited Condensed Consolida_3

Unaudited Condensed Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 5,835	$ (201,366)	$ (29,417)	$ (193,327)
Other comprehensive income (loss)	34	(46)	78	(9)
Comprehensive income (loss)	$ 5,869	$ (201,412)	$ (29,339)	$ (193,336)

Unaudited Condensed Consolida_4

Unaudited Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Accumulated other comprehensive (loss) income	Preferred Class B and Class C Preferred Units	Noncontrolling Interests	Preferred Class B and Class C Preferred Units	General Partner	Limited Partner	Limited PartnerCommon units
Beginning Balance (in units) at Mar. 31, 2019			8,400,000					124,508,497
Beginning Balance at Mar. 31, 2019	$ 2,277,818	$ (255)		$ 58,748	$ 202,731	$ (50,603)	$ 2,067,197
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(63,359)					(85)	(63,274)
Preferred units, issued (in units)			1,800,000
Preferred units issued, net of offering costs	42,638				42,638
Equity issued pursuant to incentive compensation plan (Note 10)	2,752						2,752
Warrants exercised (in units)								1,458,371
Warrants exercised	15						15
Accretion of beneficial conversion feature of 10.75% Class A convertible preferred units	(36,517)						(36,517)
10.75% Class A convertible preferred units redemption - amount paid in excess of carrying value	(78,797)						(78,797)
Investment in NGL Energy Holdings LLC	(2,361)						(2,361)
Net (loss) income	8,039			(268)		(85)	8,392
Other comprehensive loss	37	37
Ending Balance (in units) at Jun. 30, 2019			10,200,000					125,966,868
Ending Balance at Jun. 30, 2019	2,150,265	(218)		58,480	245,369	(50,773)	1,897,407
Beginning Balance (in units) at Mar. 31, 2019			8,400,000					124,508,497
Beginning Balance at Mar. 31, 2019	2,277,818	(255)		58,748	202,731	(50,603)	2,067,197
Increase (Decrease) in Partnership Capital
Investment in NGL Energy Holdings LLC	13,827
Other comprehensive loss	(9)
Ending Balance (in units) at Sep. 30, 2019			14,385,642					128,040,420
Ending Balance at Sep. 30, 2019	2,051,911	(264)		57,781	348,393	(51,014)	1,697,015
Beginning Balance (in units) at Jun. 30, 2019			10,200,000					125,966,868
Beginning Balance at Jun. 30, 2019	2,150,265	(218)		58,480	245,369	(50,773)	1,897,407
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(55,110)					(85)	(55,025)
Distributions to noncontrolling interest owners	(570)			(570)
Preferred units, issued (in units)			4,185,642
Preferred units issued, net of offering costs	102,757				102,757
Equity issued pursuant to incentive compensation plan (in units)								2,151,781
Equity issued pursuant to incentive compensation plan (Note 10)	26,593					27	26,566
Investment in NGL Energy Holdings LLC	(11,466)						(11,466)
Common unit repurchases and cancellations	(1,098)						(1,098)
Common unit repurchases and cancellations (in units)								(78,229)
Class C preferred unit issuance costs	267				267
Issuance of warrants, net of offering costs	41,685						41,685
Net (loss) income	(201,366)			(129)		(183)	(201,054)
Other comprehensive loss	(46)	(46)
Ending Balance (in units) at Sep. 30, 2019			14,385,642					128,040,420
Ending Balance at Sep. 30, 2019	2,051,911	(264)		57,781	348,393	(51,014)	1,697,015
Beginning Balance (in units) at Mar. 31, 2020			14,385,642					128,771,715
Beginning Balance at Mar. 31, 2020	1,735,690	(385)		72,954	348,359	(51,390)	1,366,152
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(47,678)					(26)	(47,652)
Distributions to noncontrolling interest owners	(2,257)			(2,257)
Equity issued pursuant to incentive compensation plan (Note 10)	1,349					0	1,349
Net (loss) income	(35,252)			51		(57)	(35,246)
Other comprehensive loss	44	44
Ending Balance (in units) at Jun. 30, 2020			14,385,642					128,771,715
Ending Balance at Jun. 30, 2020	1,650,783	(341)		70,748	348,359	(51,474)	1,283,491
Beginning Balance (in units) at Mar. 31, 2020			14,385,642					128,771,715
Beginning Balance at Mar. 31, 2020	1,735,690	(385)		72,954	348,359	(51,390)	1,366,152
Increase (Decrease) in Partnership Capital
Investment in NGL Energy Holdings LLC	0
Other comprehensive loss	78
Ending Balance (in units) at Sep. 30, 2020			14,385,642					128,771,715
Ending Balance at Sep. 30, 2020	1,609,528	(307)		70,318	348,359	(51,518)	1,242,676
Increase (Decrease) in Partnership Capital
Cumulative Effect of New Accounting Principle in Period of Adoption	(1,113)					(1)
Cumulative Effect of New Accounting Principle in Period of Adoption | Limited Partner							(1,112)
Cumulative Effect of New Accounting Principle in Period of Adoption	(1,113)					(1)
Cumulative Effect of New Accounting Principle in Period of Adoption | Limited Partner							(1,112)
Beginning Balance (in units) at Jun. 30, 2020			14,385,642					128,771,715
Beginning Balance at Jun. 30, 2020	1,650,783	(341)		70,748	348,359	(51,474)	1,283,491
Increase (Decrease) in Partnership Capital
Distributions to general and common unit partners and preferred unitholders (Note 10)	(47,834)					(26)	(47,808)
Distributions to noncontrolling interest owners	(598)			(598)
Equity issued pursuant to incentive compensation plan (Note 10)	1,308						1,308
Net (loss) income	5,835			168		(18)	5,685
Other comprehensive loss	34	34
Ending Balance (in units) at Sep. 30, 2020			14,385,642					128,771,715
Ending Balance at Sep. 30, 2020	$ 1,609,528	$ (307)		$ 70,318	$ 348,359	$ (51,518)	$ 1,242,676

Unaudited Condensed Consolida_5

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
OPERATING ACTIVITIES:
Net loss	$ (29,417)	$ (193,327)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Loss from discontinued operations, net of tax	1,639	186,685
Depreciation and amortization, including amortization of debt issuance costs	178,506	121,697
Gain on early extinguishment of liabilities, net	(33,102)	0
Non-cash equity-based compensation expense	4,558	24,996
Loss on disposal or impairment of assets, net	17,976	2,144
Provision for expected credit losses	(259)	767
Net adjustments to fair value of commodity derivatives	30,562	(15,860)
Equity in (earnings) loss of unconsolidated entities	(790)	257
Distributions of earnings from unconsolidated entities	2,994	0
Lower of cost or net realizable value adjustments	418	309
Other	941	490
Changes in operating assets and liabilities, exclusive of acquisitions:
Accounts receivable-trade and affiliates	124,801	7,836
Inventories	(113,691)	(52,829)
Other current and noncurrent assets	41,762	(35,899)
Accounts payable-trade and affiliates	(51,312)	(41,637)
Other current and noncurrent liabilities	(30,335)	13,734
Net cash provided by operating activities-continuing operations	145,251	19,363
Net cash used in operating activities-discontinued operations	(1,591)	(23,851)
Net cash provided by (used in) operating activities	143,660	(4,488)
INVESTING ACTIVITIES:
Capital expenditures	(132,304)	(259,075)
Acquisitions, net of cash acquired	0	(647,048)
Net settlements of commodity derivatives	(22,106)	27,739
Proceeds from sales of assets	1,099	1,982
Investments in unconsolidated entities	(607)	(1,015)
Distributions of capital from unconsolidated entities	370	439
Repayments on loan for natural gas liquids facility	0	3,022
Deposit paid to acquire business	0	(49,875)
Net cash used in investing activities-continuing operations	(153,548)	(923,831)
Net cash provided by investing activities-discontinued operations	0	290,617
Net cash used in investing activities	(153,548)	(633,214)
FINANCING ACTIVITIES:
Proceeds from borrowings under Revolving Credit Facility	704,000	2,198,000
Payments on Revolving Credit Facility	(471,500)	(2,276,000)
Issuance of senior unsecured notes and term credit agreement	250,000	700,000
Repayment of bridge term credit agreement	(250,000)	0
Repurchase of senior unsecured notes	(54,499)	0
Payments on other long-term debt	(326)	(326)
Debt issuance costs	(9,947)	(10,446)
Distributions to general and common unit partners and preferred unitholders	(81,698)	(117,386)
Distributions to noncontrolling interest owners	(2,855)	(570)
Proceeds from sale of preferred units, net of offering costs	0	428,338
Payments for redemption of preferred units	0	(265,128)
Common unit repurchases and cancellations	0	(1,098)
Payments for settlement and early extinguishment of liabilities	(79,079)	(1,273)
Investment in NGL Energy Holdings LLC	0	(13,827)
Net cash provided by financing activities	4,096	640,284
Net (decrease) increase in cash and cash equivalents	(5,792)	2,582
Cash and cash equivalents, beginning of period	22,704	18,572
Cash and cash equivalents, end of period	16,912	21,154
Supplemental cash flow information:
Cash interest paid	87,793	65,615
Income taxes paid (net of income tax refunds)	2,198	3,237
Supplemental non-cash investing and financing activities:
Distributions declared but not paid to Class B, Class C and Class D preferred unitholders	21,976	8,162
Accrued capital expenditures	$ 10,969	$ 48,393

Organization and Operations

Organization and Operations	6 Months Ended
	Sep. 30, 2020
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 September 30, 2020, our operations included three segments: • 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, and transportation services through its owned assets. Our activities in this segment are supported by certain long-term, fixed rate contracts which include minimum volume commitments on our pipelines. • Our Water Solutions segment transports, treats, recycles and disposes of produced and flowback water generated from crude oil and natural gas production. We also dispose of solids such as tank bottoms, drilling fluids and drilling muds and perform other ancillary services such as truck and frac tank washouts. As part of processing water, we are able to aggregate recovered crude oil, also known as skim oil, that was contained in the water and sell the crude oil. We also sell brackish non-potable water to our producer customers to be used in their crude oil exploration and production activities. Our activities in this segment are underpinned by long-term, fixed fee contracts and acreage dedications, some of which contain minimum volume commitments, with leading oil and gas companies including large, investment grade producer customers. • Our Liquids and Refined Products segment conducts marketing operations for natural gas liquids, refined petroleum products and biodiesel to a broad range of commercial, retail and industrial customers across the United States and Canada. These operations are conducted through our company-owned terminals, other third party storage and terminal facilities, common carrier pipelines and our extensive fleet of leased railcars. We also provide natural gas liquids and refined product terminaling and storage services at our salt dome storage facility joint venture in Utah and marine exports through our facility located in Chesapeake, Virginia. We employ a number of contractual and hedging strategies to minimize commodity exposure and maximize earnings stability of this segment.

Significant Accounting Policies

Significant Accounting Policies	6 Months Ended
	Sep. 30, 2020
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, 2020 was derived from our audited consolidated financial statements for the fiscal year ended March 31, 2020 included in our Annual Report on Form 10-K (“Annual Report”) filed with the SEC on June 1, 2020. These interim unaudited condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and notes thereto included in our Annual 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, 2021. 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 and notes 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 Annual Report. 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 a deferred tax liability of $48.6 million and $56.4 million at September 30, 2020 and March 31, 2020, respectively, 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 sheets. 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 six months ended September 30, 2020 was $1.8 million with an effective tax rate of 23.8%. The deferred tax benefit recorded during the six months ended September 30, 2019 was $1.0 million with an effective tax rate of 24.9%. 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 September 30, 2020 or March 31, 2020. 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: September 30, 2020 March 31, 2020 (in thousands) Propane $ 61,455 $ 25,163 Butane 49,615 9,619 Crude oil 57,960 18,201 Biodiesel 3,094 8,195 Ethanol 3,467 1,834 Diesel 1,448 2,414 Other 5,820 4,208 Total $ 182,859 $ 69,634 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. Our investments in unconsolidated entities consist of the following at the dates indicated: Entity Segment Ownership Date Acquired September 30, 2020 March 31, 2020 (in thousands) Water services and land company Water Solutions 50% November 2019 $ 15,082 $ 16,607 Water services and land company Water Solutions 50% November 2019 1,926 2,092 Water services and land company Water Solutions 10% November 2019 2,846 3,384 Aircraft company (2) Corporate and Other 50% June 2019 751 447 Water services company Water Solutions 50% August 2018 435 449 Natural gas liquids terminal company Liquids and Refined Products 50% March 2019 175 203 Total $ 21,215 $ 23,182 (1) Ownership interest percentages are at September 30, 2020. (2) This is an investment with a related party. Other Noncurrent Assets Other noncurrent assets consist of the following at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Loan receivable (1) $ 2,873 $ 5,374 Line fill (2) 23,039 25,763 Minimum shipping fees - pipeline commitments (3) 15,307 17,443 Other 6,533 14,557 Total $ 47,752 $ 63,137 (1) Amounts at September 30, 2020 and March 31, 2020 represent the noncurrent portion of a loan receivable, net of an allowance for an expected credit loss, with Victory Propane, LLC. In addition, the amount at March 31, 2020 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. The third party filed for Chapter 11 bankruptcy in July 2019. For a further discussion, see Note 17. (2) Represents minimum volumes of product we are required to leave on certain third-party owned pipelines under long-term shipment commitments. At September 30, 2020 and March 31, 2020, line fill consisted of 335,069 barrels of crude oil. At March 31, 2020, line fill also consisted of 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 September 30, 2020, the deficiency credit was $20.1 million, of which $4.8 million is recorded within prepaid expenses and other current assets in our unaudited condensed consolidated balance sheet. Accrued Expenses and Other Payables Accrued expenses and other payables consist of the following at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Accrued compensation and benefits $ 29,263 $ 29,990 Excise and other tax liabilities 11,111 9,941 Derivative liabilities 4,014 17,777 Accrued interest 35,977 39,803 Product exchange liabilities 6,199 1,687 Contingent consideration liability (1) 19,294 102,419 Other 32,714 30,445 Total $ 138,572 $ 232,062 (1) Decrease is due to the monthly installment payments made during the six months ended September 30, 2020 related to our acquisition of certain assets of Mesquite Disposals Unlimited, LLC (“Mesquite”). Per the agreement, we made two monthly payments subsequent to September 30, 2020 and currently have one monthly payment remaining. 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 March 2020, the SEC issued “Financial Disclosures About Guarantors and Issuers of Guaranteed Securities and Affiliates Whose Securities Collateralize a Registrant’s Securities”, which amends the disclosure requirements for guarantors and issuers of guaranteed securities registered or being registered in Rule 3-10 of Regulation S-X. The amendment simplifies the disclosure requirements and permits the amended disclosures to be provided outside the footnotes in audited annual or unaudited interim consolidated financial statements in all filings. The guidance is effective for the Partnership for fiscal periods ending after January 4, 2021, although early adoption is permitted. We adopted this guidance effective April 1, 2020 and elected to include the required summarized financial information in “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations –Liquidity, Sources of Capital and Capital Resource Activities– Guarantor Summarized Financial Information .” 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 trade 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. We adopted ASU No. 2016-13 on April 1, 2020, using the modified retrospective approach with a cumulative effect adjustment of $1.1 million to opening equity at the beginning of the period of adoption. See Note 16 for a further discussion of the impact of the adoption of this ASU on our unaudited condensed consolidated financial statements.

Loss Per Common Unit

Loss Per Common Unit	6 Months Ended
	Sep. 30, 2020
Earnings Per Unit [Abstract]
Loss Per Common Unit	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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 Weighted average common units outstanding during the period: Common units - Basic 128,771,715 126,979,034 128,771,715 126,435,870 Common units - Diluted 128,771,715 126,979,034 128,771,715 126,435,870 For the three months and six months ended September 30, 2020 and 2019, all potential common units or convertible securities were considered antidilutive. Our loss per common unit is as follows for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands, except unit and per unit amounts) Income (loss) from continuing operations $ 5,988 $ (15,624) $ (27,778) $ (6,642) Less: Continuing operations (income) loss attributable to noncontrolling interests (168) 129 (219) 397 Net income (loss) from continuing operations attributable to NGL Energy Partners LP 5,820 (15,495) (27,997) (6,245) Less: Distributions to preferred unitholders (1) (23,770) (17,063) (45,824) (146,523) Less: Continuing operations net loss (income) allocated to general partner (2) 17 (3) 73 81 Net loss from continuing operations allocated to common unitholders $ (17,933) $ (32,561) $ (73,748) $ (152,687) Loss from discontinued operations, net of tax $ (153) $ (185,742) $ (1,639) $ (186,685) Less: Discontinued operations loss allocated to general partner (2) 1 186 2 187 Net loss from discontinued operations allocated to common unitholders $ (152) $ (185,556) $ (1,637) $ (186,498) Net loss allocated to common unitholders $ (18,085) $ (218,117) $ (75,385) $ (339,185) Basic loss per common unit Loss from continuing operations $ (0.14) $ (0.26) $ (0.57) $ (1.21) Loss from discontinued operations, net of tax $ — $ (1.46) $ (0.01) $ (1.47) Net loss $ (0.14) $ (1.72) $ (0.58) $ (2.68) Diluted loss per common unit Loss from continuing operations $ (0.14) $ (0.26) $ (0.57) $ (1.21) Loss from discontinued operations, net of tax $ — $ (1.46) $ (0.01) $ (1.47) Net loss $ (0.14) $ (1.72) $ (0.58) $ (2.68) Basic weighted average common units outstanding 128,771,715 126,979,034 128,771,715 126,435,870 Diluted weighted average common units outstanding 128,771,715 126,979,034 128,771,715 126,435,870 (1) This amount includes distributions to preferred unitholders. The final accretion for the beneficial conversion of the 10.75% Class A Convertible Preferred Units and the excess of the 10.75% Class A Convertible Preferred Units repurchase price over the carrying value of the units are included in the six months ended September 30, 2019. (2) Net loss (income) allocated to the general partner includes distributions to which it is entitled as the holder of incentive distribution rights.

Acquisitions

Acquisitions	6 Months Ended
	Sep. 30, 2020
Business Combinations [Abstract]
Acquisitions	Acquisitions The following summarizes the status of the preliminary purchase price allocation of acquisitions completed prior to April 1, 2020: Hillstone Environmental Partners, LLC (“Hillstone”) Acquisition During the six months ended September 30, 2020, we received additional information and recorded a decrease of $0.7 million to current assets, a decrease of $5.1 million to current liabilities and a decrease of $6.0 million to the deferred tax liability with the offset to goodwill. Also, there was a $0.9 million decrease to the preliminary purchase price as a result of a true up to the working capital acquired. This amount was recorded as an offset to goodwill. There were no other adjustments to the fair value of assets acquired and liabilities assumed during the six months ended September 30, 2020. As of September 30, 2020, the allocation of the purchase price is considered preliminary as we are continuing to gather additional information to finalize working capital items.

Property, Plant and Equipment

Property, Plant and Equipment	6 Months Ended
	Sep. 30, 2020
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 September 30, 2020 March 31, 2020 (in years) (in thousands) Natural gas liquids terminal and storage assets 2 - 30 $ 316,693 $ 314,694 Pipeline and related facilities 30 - 40 244,031 244,751 Vehicles and railcars 3 - 25 126,150 123,937 Water treatment facilities and equipment 3 - 30 1,859,149 1,525,859 Crude oil tanks and related equipment 2 - 30 233,571 234,143 Barges and towboats 5 - 30 137,784 125,162 Information technology equipment 3 - 7 39,258 34,261 Buildings and leasehold improvements 3 - 40 160,886 151,690 Land 101,199 91,446 Tank bottoms and line fill (1) 20,275 20,346 Other 3 - 20 15,136 14,627 Construction in progress 165,413 499,707 3,419,545 3,380,623 Accumulated depreciation (619,820) (529,068) Net property, plant and equipment $ 2,799,725 $ 2,851,555 (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. The following table summarizes depreciation expense and capitalized interest expense for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Depreciation expense $ 53,290 $ 31,334 $ 100,013 $ 56,790 Capitalized interest expense $ 445 $ — $ 2,113 $ — Amounts in the table above for the three months and six months ended September 30, 2019 do not include depreciation expense and capitalized interest expense related to TPSL (as defined herein), as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18). We record (gains) losses from the sales of property, plant and equipment and any write-downs in value due to impairment within 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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Crude Oil Logistics $ — $ (257) $ 1,844 $ (790) Water Solutions 6,414 3,551 6,740 3,599 Liquids and Refined Products 43 (4) 47 (7) Corporate and Other (2) — (2) — Total $ 6,455 $ 3,290 $ 8,629 $ 2,802

Goodwill

Goodwill	6 Months Ended
	Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill The following table summarizes changes in goodwill by segment during the six months ended September 30, 2020: Crude Oil Water Liquids and Total (in thousands) Balances at March 31, 2020 $ 579,846 $ 294,658 $ 119,083 $ 993,587 Revisions to acquisition accounting (Note 4) — (11,348) — (11,348) Balances at September 30, 2020 $ 579,846 $ 283,310 $ 119,083 $ 982,239

Intangible Assets

Intangible Assets	6 Months Ended
	Sep. 30, 2020
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Intangible Assets	Intangible Assets Our intangible assets consist of the following at the dates indicated: September 30, 2020 March 31, 2020 Description Amortizable Lives Gross Carrying Accumulated Net Gross Carrying Accumulated Net (in years) (in thousands) Amortizable: Customer relationships 3 - 30 $ 1,434,938 $ (490,601) $ 944,337 $ 1,435,573 $ (445,250) $ 990,323 Customer commitments 10 - 25 502,000 (131,017) 370,983 502,000 (111,677) 390,323 Pipeline capacity rights 30 7,799 (1,777) 6,022 7,799 (1,647) 6,152 Rights-of-way and easements 1 - 45 90,898 (7,839) 83,059 89,476 (6,506) 82,970 Water rights 13 - 30 100,369 (11,412) 88,957 100,937 (8,441) 92,496 Executory contracts and other agreements 5 - 30 48,659 (19,776) 28,883 48,570 (18,210) 30,360 Non-compete agreements 2 - 24 12,714 (5,762) 6,952 12,723 (4,735) 7,988 Debt issuance costs (1) 3 - 5 44,499 (38,075) 6,424 44,051 (34,983) 9,068 Total amortizable 2,241,876 (706,259) 1,535,617 2,241,129 (631,449) 1,609,680 Non-amortizable: Trade names 2,800 — 2,800 2,800 — 2,800 Total $ 2,244,676 $ (706,259) $ 1,538,417 $ 2,243,929 $ (631,449) $ 1,612,480 (1) Includes debt issuance costs related to the Revolving Credit Facility (as defined herein) and the Sawtooth credit agreement. Debt issuance costs related to the fixed-rate notes, Bridge Term Credit Agreement (as defined herein) and Term Credit Agreement (as defined herein) are reported as a reduction of the carrying amount of long-term debt. The weighted-average remaining amortization period for intangible assets is approximately 18.7 years. Amortization expense is as follows for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, Recorded In 2020 2019 2020 2019 (in thousands) Depreciation and amortization $ 34,179 $ 31,779 $ 71,442 $ 60,077 Cost of sales 76 89 153 176 Interest expense 1,560 1,280 3,092 2,556 Operating expenses 61 111 123 262 Total $ 35,876 $ 33,259 $ 74,810 $ 63,071 Amounts in the table above for the three months and six months ended September 30, 2019 do not include amortization expense related to TPSL, as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18). Expected amortization of our intangible assets is as follows (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 69,530 2022 131,313 2023 122,732 2024 116,530 2025 100,300 Thereafter 995,212 Total $ 1,535,617

Long-Term Debt

Long-Term Debt	6 Months Ended
	Sep. 30, 2020
Debt Disclosure [Abstract]
Long-Term Debt	Long-Term Debt Our long-term debt consists of the following at the dates indicated: September 30, 2020 March 31, 2020 Face Unamortized Book Face Unamortized Book (in thousands) Revolving credit facility: Expansion capital borrowings $ 1,466,000 $ — $ 1,466,000 $ 1,120,000 $ — $ 1,120,000 Working capital borrowings 236,500 — 236,500 350,000 — 350,000 Senior unsecured notes: 7.500% Notes due 2023 (“2023 Notes”) 572,856 (4,387) 568,469 607,323 (5,405) 601,918 6.125% Notes due 2025 (“2025 Notes”) 380,020 (3,717) 376,303 387,320 (4,217) 383,103 7.500% Notes due 2026 (“2026 Notes”) 400,823 (5,701) 395,122 450,000 (6,975) 443,025 Bridge term credit agreement — — — 250,000 (3,198) 246,802 Term credit agreement 250,000 (8,462) 241,538 — — — Other long-term debt 4,357 — 4,357 4,683 — 4,683 3,310,556 (22,267) 3,288,289 3,169,326 (19,795) 3,149,531 Less: Current maturities (2) 13,123 — 13,123 4,683 — 4,683 Long-term debt $ 3,297,433 $ (22,267) $ 3,275,166 $ 3,164,643 $ (19,795) $ 3,144,848 (1) Debt issuance costs related to the Revolving Credit Facility and the Sawtooth credit agreement are reported within intangible assets, rather than as a reduction of the carrying amount of long-term debt. (2) Current maturities include the 2023 Notes that were repurchased in October 2020 (see Note 19 ) but had trade dates in September 2020. Amortization expense for debt issuance costs related to long-term debt in the table above was $1.7 million and $1.0 million during the three months ended September 30, 2020 and 2019, respectively, and $3.7 million and $1.8 million during the six months ended September 30, 2020 and 2019, respectively. Expected amortization of debt issuance costs is as follows (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 3,247 2022 6,451 2023 6,442 2024 3,254 2025 1,802 Thereafter 1,071 Total $ 22,267 Credit Agreement We are party to a credit agreement (“Credit Agreement”) with a syndicate of banks. The Credit Agreement provides up to $1.915 billion in aggregate commitments and consists of a revolving credit facility to fund working capital needs (“Working Capital Facility”), and another to fund acquisitions and expansion projects (“Expansion Capital Facility”). On April 27, 2020, we amended our Credit Agreement to reallocate availability between the two revolving credit facilities. We reduced the capacity of the Working Capital Facility to $350.0 million and increased the Expansion Capital Facility to $1.565 billion (the Expansion Capital Facility, and together with the Working Capital Facility, the “Revolving Credit Facility”). We had letters of credit of $107.3 million on the Working Capital Facility at September 30, 2020. 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. The commitments under the Credit Agreement expire on October 5, 2021. At September 30, 2020, the borrowings under the Credit Agreement had a weighted average interest rate of 2.95%, calculated as the weighted average LIBOR rate of 0.16% plus a margin of 2.75% for LIBOR borrowings and the prime rate of 3.25% plus a margin of 1.75% on alternate base rate borrowings. At September 30, 2020, the interest rate in effect on letters of credit was 2.75%. Commitment fees are charged at a rate ranging from 0.375% to 0.50% on any unused capacity. The Credit Agreement specifies that our senior secured leverage ratio cannot be more than 3.50 to 1, that our interest coverage ratio cannot be less than 2.50 to 1 and the total leverage indebtedness ratio cannot be more than 5.50 to 1 at any quarter end. At September 30, 2020, our senior secured leverage ratio was approximately 3.12 to 1, our interest coverage ratio was approximately 3.51 to 1, and our total leverage indebtedness ratio was approximately 5.32 to 1. We were in compliance with the covenants under the Credit Agreement at September 30, 2020. Senior Unsecured Notes The senior unsecured notes include the 2023 Notes, 2025 Notes and 2026 Notes (collectively, the “Senior Unsecured Notes”). Repurchases The following table summarizes repurchases of Senior Unsecured Notes for the periods indicated: Three Months Ended Six Months Ended September 30, September 30, 2020 2020 (in thousands) 2023 Notes Notes repurchased $ 19,467 $ 34,467 Cash paid (excluding payments of accrued interest) $ 13,331 $ 21,752 Gain on early extinguishment of debt (1) $ 5,986 $ 12,435 2025 Notes Notes repurchased $ — $ 7,300 Cash paid (excluding payments of accrued interest) $ — $ 3,647 Gain on early extinguishment of debt (2) $ — $ 3,575 2026 Notes Notes repurchased $ 24,258 $ 49,177 Cash paid (excluding payments of accrued interest) $ 16,128 $ 29,100 Gain on early extinguishment of debt (3) $ 7,782 $ 19,349 (1) Gain on early extinguishment of debt for the three months and six months ended September 30, 2020 is inclusive of the write-off of debt issuance costs of $0.1 million and $0.3 million, respectively. The gain is reported within gain on early extinguishment of liabilities, net within our unaudited condensed consolidated statement of operations. (2) Gain on early extinguishment of debt for the six months ended September 30, 2020 is inclusive of the write-off of debt issuance costs of $0.1 million. The gain is reported within gain on early extinguishment of liabilities, net within our unaudited condensed consolidated statement of operations. (3) Gain on early extinguishment of debt for the three months and six months ended September 30, 2020 is inclusive of the write-off of debt issuance costs of $0.3 million and $0.7 million, respectively. The gain is reported within gain on early extinguishment of liabilities, net within our unaudited condensed consolidated statement of operations. Compliance At September 30, 2020, we were in compliance with the covenants under the indentures for all of the Senior Unsecured Notes. Term Credit Agreement On June 3, 2020, we entered into a new $250.0 million term credit agreement (the “Term Credit Agreement”) with certain funds and accounts managed by affiliates of Apollo Global Management, Inc. to refinance the previous Bridge Term Credit Agreement (as defined herein). The commitments under the Term Credit Agreement expire on June 3, 2023 and are callable by us after two years at par. 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 NGL Energy Operating LLC’s (“Borrower”) 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 LIBOR (based on the higher of one-month or three-month LIBOR), subject to a 1.50% LIBOR floor, plus 8.00%. At September 30, 2020, the borrowings under the Term Credit Agreement had an interest rate of 9.50% (as of September 30, 2020 the reference LIBOR rate was below the LIBOR floor of 1.50%). The Term Credit Agreement contains various customary representations, warranties and covenants by the Partnership and its subsidiaries, including, without limitation, (i) financial covenants limiting leverage, including senior secured leverage and total leverage, and requiring a minimum interest coverage, (ii) negative covenants limiting indebtedness, liens, investments, equity distributions, dispositions and fundamental changes and 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 Borrower’s existing Revolving Credit Facility. The Term Credit Agreement specifies that our senior secured leverage ratio cannot be more than 3.50 to 1, that our interest coverage ratio cannot be less than 2.50 to 1 and the total leverage indebtedness ratio cannot be more than 5.75 to 1 for the four fiscal quarters of the fiscal year ending March 31, 2021. As of June 30, 2021 and through June 3, 2023, the maximum total leverage indebtedness ratio will be 5.50 to 1. At September 30, 2020, our senior secured leverage ratio was approximately 3.12 to 1, our interest coverage ratio was approximately 3.51 to 1, and our total leverage indebtedness ratio was approximately 5.32 to 1. At September 30, 2020, we were in compliance with the covenants under the Term Credit Agreement. Bridge Term Credit Agreement On July 2, 2019, we entered into a bridge term credit agreement (the “Bridge 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. On June 3, 2020, we used the proceeds from the Term Credit Agreement to pay off the outstanding balance of the Bridge Term Credit Agreement. We wrote off $2.3 million of debt issuance costs which is reported within gain on early extinguishment of liabilities, net within our unaudited condensed consolidated statement of operations. Sawtooth Credit Agreement On November 27, 2019, Sawtooth Caverns LLC (“Sawtooth”), a joint venture in which we own approximately a 71.5% 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 September 30, 2020, 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 $4.4 million at September 30, 2020. See Note 19 for details of the new equipment financing entered into after the end of the quarter. Debt Maturity Schedule The scheduled maturities of our long-term debt are as follows at September 30, 2020: Fiscal Year Ending March 31, Revolving Senior Term Credit Other Total (in thousands) 2021 (six months) $ — $ 8,766 $ — $ 4,357 $ 13,123 2022 1,702,500 — — — 1,702,500 2023 — — — — — 2024 — 564,090 250,000 — 814,090 2025 — 380,020 — — 380,020 Thereafter — 400,823 — — 400,823 Total $ 1,702,500 $ 1,353,699 $ 250,000 $ 4,357 $ 3,310,556

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Sep. 30, 2020
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 (“Supreme Court”) 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 briefs and materials were fully submitted by both parties on August 10, 2020. It is our position that the awards, even if they each stand, are not cumulative. The Supreme Court conducted a hearing to hear oral arguments of the parties on November 4, 2020 and has taken the matter under advisement. We are currently waiting for their decision. Any allocation of the ultimate verdict award between the GP and the Partnership will be made by the board of directors of our general partner once all information is available to it and after the post-trial and any appellate process has concluded and the verdict is final as a matter of law. Because the Partnership is a named defendant in the lawsuit, 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 September 30, 2020, 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 September 30, 2020, we have an environmental liability, measured on an undiscounted basis, of $1.8 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. 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, 2020 $ 18,416 Liabilities incurred 4,703 Accretion expense 867 Balance at September 30, 2020 $ 23,986 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 September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 5,844 2022 11,779 2023 4,497 2024 197 2025 172 Thereafter 526 Total $ 23,015 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 six months ended September 30, 2020, we recorded $0.7 million and $1.4 million, respectively, within operating expense in our unaudited condensed consolidated statements of operations. At September 30, 2020, the range of potential payments we could be obligated to make pursuant to the subsidy agreement could be from $0.0 million to $7.3 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 an asset 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). The following table summarizes future minimum throughput payments under these agreements at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 17,608 2022 35,314 2023 35,314 2024 35,410 2025 30,897 Total $ 154,543 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 September 30, 2020, we had the following commodity purchase commitments (in thousands): Crude Oil (1) Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Purchase Commitments: 2021 (six months) $ 36,089 954 $ 12,216 26,248 2022 — — 2,495 5,766 Total $ 36,089 954 $ 14,711 32,014 Index-Price Commodity Purchase Commitments: 2021 (six months) $ 615,291 15,950 $ 427,537 759,793 2022 774,050 18,484 19,544 37,173 2023 689,702 15,702 — — 2024 640,959 14,359 — — 2025 464,404 10,220 — — Thereafter 17,878 389 — — Total $ 3,202,284 75,104 $ 447,081 796,966 (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 September 30, 2020, we had the following commodity sale commitments (in thousands): Crude Oil Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Sale Commitments: 2021 (six months) $ 36,156 954 $ 112,490 174,109 2022 — — 5,886 10,585 Total $ 36,156 954 $ 118,376 184,694 Index-Price Commodity Sale Commitments: 2021 (six months) $ 498,465 12,351 $ 564,739 741,188 2022 203,569 4,745 14,042 20,280 2023 208,153 4,745 290 455 2024 212,210 4,758 — — 2025 215,198 4,745 — — Thereafter 17,878 390 — — Total $ 1,355,473 31,734 $ 579,071 761,923 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).

Equity

Equity	6 Months Ended
	Sep. 30, 2020
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 September 30, 2020, we owned 8.69% of our general partner. Common Unit Repurchase Program On August 30, 2019, the board of directors of our general partner authorized a common unit repurchase program, 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 six months ended September 30, 2020. Our Distributions The following table summarizes distributions declared on our common units during the last three quarters: Date Declared Record Date Payment Date Amount Per Unit Amount Paid/Payable Amount Paid/Payable (in thousands) (in thousands) April 27, 2020 May 7, 2020 May 15, 2020 $ 0.2000 $ 25,754 $ 26 July 23, 2020 August 6, 2020 August 14, 2020 $ 0.2000 $ 25,754 $ 26 October 27, 2020 November 6, 2020 November 13, 2020 $ 0.1000 $ 12,804 $ 13 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. 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 three quarters: Amount Paid to Class B Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) March 16, 2020 March 31, 2020 April 15, 2020 $ 0.5625 $ 7,079 June 15, 2020 June 30, 2020 July 15, 2020 $ 0.5625 $ 7,079 September 15, 2020 September 30, 2020 October 15, 2020 $ 0.5625 $ 7,079 The distribution amount paid on October 15, 2020 is included in accrued expenses and other payables in our unaudited condensed consolidated balance sheet at September 30, 2020. 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) March 16, 2020 March 31, 2020 April 15, 2020 $ 0.6016 $ 1,083 June 15, 2020 June 30, 2020 July 15, 2020 $ 0.6016 $ 1,083 September 15, 2020 September 30, 2020 October 15, 2020 $ 0.6016 $ 1,083 The distribution amount paid on October 15, 2020 is included in accrued expenses and other payables in our unaudited condensed consolidated balance sheet at September 30, 2020. 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 net proceeds of $385.4 million. 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 net proceeds of $194.7 million. As of September 30, 2020, all warrants are still outstanding. The current distribution rate for the Class D Preferred Units is 9.00% per year per unit (equal to $90.00 per every $1,000 in unit value per year). The following table summarizes distributions declared on our Class D Preferred Units during the last three quarters: Amount Paid to Class D Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) April 27, 2020 May 7, 2020 May 15, 2020 $ 11.25 $ 6,868 July 23, 2020 August 6, 2020 August 14, 2020 $ 11.25 $ 6,946 October 27, 2020 November 6, 2020 November 13, 2020 $ 26.01 $ 15,608 The distribution for the three months ended September 30, 2020 includes a 1.0% rate increase due to us exceeding the adjusted total leverage ratio, as defined within the amended and restated limited partnership agreement. The distributions paid in cash for both the three months ended March 31, 2020 and June 30, 2020 of $6.9 million represented 50% of the Class D Preferred Units distribution amount, as represented in the table above. In accordance with the terms of our Partnership Agreement, the value of each Class D Preferred Unit automatically increased by the non-cash accretion, which was approximately $6.9 million in the aggregate with respect to the distributions for both the three months ended March 31, 2020 and June 30, 2020. The distributions for the three months ended September 30, 2020 will all be paid in cash. 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 through the vesting date (the “Service Awards”). 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 Service Awards during the vesting period. The following table summarizes the Service Award activity during the six months ended September 30, 2020: Unvested Service Award units at March 31, 2020 1,371,425 Units granted 6,000 Units forfeited (19,500) Unvested Service Award units at September 30, 2020 1,357,925 The following table summarizes the scheduled vesting of our unvested Service Award units at September 30, 2020: Fiscal Year Ending March 31, 2021 (six months) 903,700 2022 454,225 Total 1,357,925 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. The weighted-average grant price for the six months ended September 30, 2020 was $3.86. 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 September 30, 2020 and 2019, we recorded compensation expense related to Service Award units of $1.3 million and $2.1 million, respectively. During the six months ended September 30, 2020 and 2019, we recorded compensation expense related to Service Award units of $2.7 million and $4.9 million, respectively. The following table summarizes the estimated future expense we expect to record on the unvested Service Award units at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 2,187 2022 1,695 Total $ 3,882 As of September 30, 2020, there are approximately 2.9 million common units remaining available for issuance under the LTIP.

Fair Value of Financial Instrum

Fair Value of Financial Instruments	6 Months Ended
	Sep. 30, 2020
Fair Value Disclosures [Abstract]
Fair Value of Financial Instruments	Fair Value of Financial InstrumentsOur 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: September 30, 2020 March 31, 2020 Derivative Derivative Derivative Derivative (in thousands) Level 1 measurements $ 19,795 $ (7,658) $ 64,037 $ (2,235) Level 2 measurements 4,231 (4,060) 25,217 (17,635) 24,026 (11,718) 89,254 (19,870) Netting of counterparty contracts (1) (7,658) 7,658 (2,282) 2,282 Net cash collateral held (1,855) — (50,104) (370) Commodity derivatives $ 14,513 $ (4,060) $ 36,868 $ (17,958) (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: September 30, 2020 March 31, 2020 (in thousands) Prepaid expenses and other current assets $ 14,513 $ 36,868 Accrued expenses and other payables (4,014) (17,777) Other noncurrent liabilities (46) (181) Net commodity derivative asset $ 10,453 $ 18,910 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 September 30, 2020: Crude oil fixed-price (1) October 2020–December 2021 (1,209) $ 11,741 Propane fixed-price (1) October 2020–December 2021 938 4,980 Refined products fixed-price (1) October 2020–March 2021 (107) 159 Butane fixed-price (1) October 2020–April 2021 (1,451) (7,702) Other October 2020–March 2022 3,130 12,308 Net cash collateral held (1,855) Net commodity derivative asset $ 10,453 At March 31, 2020: Crude oil fixed-price (1) April 2020–December 2021 (2,252) $ 41,721 Propane fixed-price (1) April 2020–December 2021 415 (738) Refined products fixed-price (1) April 2020–January 2021 (26) 27,401 Other April 2020–March 2022 1,000 69,384 Net cash collateral held (50,474) Net commodity derivative asset $ 18,910 (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. During the three months ended September 30, 2020 and 2019, we recorded a net loss of $3.2 million and a net gain of $10.3 million, respectively, from our commodity derivatives to revenues and cost of sales in our unaudited condensed consolidated statements of operations. During the six months ended September 30, 2020 and 2019, we recorded a net loss of $30.6 million and a net gain of $15.9 million, respectively, from our commodity derivatives to revenues and cost of sales in our unaudited condensed consolidated statements of operations. The amounts for the three months and six months ended September 30, 2020 and 2019 do not include net gains and losses related to Mid-Con (as defined herein), Gas Blending (as defined herein) and TPSL, as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18). 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 September 30, 2020, 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 September 30, 2020, we had $1.7 billion of outstanding borrowings under the Revolving Credit Facility at a weighted average interest rate of 2.95%. The Term Credit Agreement is variable-rate debt with interest rates that are generally indexed to LIBOR interest rates. At September 30, 2020, we had $250.0 million of outstanding borrowings under the Term Credit Agreement at an interest rate of 9.50%. Fair Value of Fixed-Rate Notes The following table provides fair value estimates of our fixed-rate notes at September 30, 2020 (in thousands): Senior Unsecured Notes: 2023 Notes $ 383,455 2025 Notes $ 230,867 2026 Notes $ 245,880 For the Senior Unsecured Notes, the fair value estimates were developed based on publicly traded quotes and would be classified as Level 2 in the fair value hierarchy.

Segments

Segments	6 Months Ended
	Sep. 30, 2020
Segment Reporting [Abstract]
Segments	Segments As a result of the sale of a large part of the assets that constituted the former Refined Products and Renewables reportable segment, the Chief Operating Decision Maker (CODM) decided during the fourth quarter of fiscal year 2020 that the remaining business within the former Refined Products and Renewables reportable segment would be aggregated with the former Liquids reportable segment and form the current Liquids and Refined Products reportable segment. Operating results for the reportable segments have been recast for the three months and six months ended September 30, 2019 to reflect these changes. Our Crude Oil Logistics and Water Solutions reportable segments remain unchanged from what has been previously reported. 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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Revenues: Crude Oil Logistics: Topic 606 revenues Crude oil sales $ 418,174 $ 596,674 $ 648,902 $ 1,278,743 Crude oil transportation and other 47,567 43,157 90,208 83,154 Non-Topic 606 revenues 3,105 3,619 6,274 7,240 Elimination of intersegment sales (2,005) (2,298) (2,504) (11,825) Total Crude Oil Logistics revenues 466,841 641,152 742,880 1,357,312 Water Solutions: Topic 606 revenues Disposal service fees 76,004 80,209 157,382 131,349 Sale of recovered crude oil 8,386 14,761 9,754 29,096 Sale of brackish non-potable water 1,147 2,007 2,980 4,103 Other service revenues 3,141 4,272 6,627 8,484 Total Water Solutions revenues 88,678 101,249 176,743 173,032 Liquids and Refined Products: Topic 606 revenues Refined products sales 288,781 639,843 499,328 1,314,556 Propane sales 136,538 115,778 258,066 255,152 Butane sales 89,920 87,821 145,117 170,046 Other product sales 90,418 116,461 138,753 231,066 Service revenues 6,683 8,262 13,025 17,049 Non-Topic 606 revenues 797 98,626 39,514 163,804 Elimination of intersegment sales (813) (5,120) (1,481) (6,309) Total Liquids and Refined Products revenues 612,324 1,061,671 1,092,322 2,145,364 Corporate and Other: Non-Topic 606 revenues 315 264 628 519 Total Corporate and Other revenues 315 264 628 519 Total revenues $ 1,168,158 $ 1,804,336 $ 2,012,573 $ 3,676,227 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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Depreciation and Amortization: Crude Oil Logistics $ 17,232 $ 17,693 $ 34,027 $ 35,278 Water Solutions 62,282 38,031 120,477 66,254 Liquids and Refined Products 7,102 6,825 15,335 14,266 Corporate and Other 4,210 3,031 8,667 5,899 Total depreciation and amortization $ 90,826 $ 65,580 $ 178,506 $ 121,697 Operating Income (Loss): Crude Oil Logistics $ 48,239 $ 38,520 $ 71,559 $ 72,322 Water Solutions (13,277) 21,274 (29,324) 34,963 Liquids and Refined Products 14,338 8,798 18,900 24,169 Corporate and Other (12,984) (38,477) (35,604) (53,819) Total operating income $ 36,316 $ 30,115 $ 25,531 $ 77,635 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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Crude Oil Logistics $ 3,098 $ 4,059 $ 8,770 $ 18,864 Water Solutions 12,260 941,511 32,962 1,145,411 Liquids and Refined Products 3,188 5,495 4,720 11,048 Corporate and Other 5,872 2,319 7,904 3,058 Total $ 24,418 $ 953,384 $ 54,356 $ 1,178,381 All of the tables above do not include amounts for the three months and six months ended September 30, 2019 related to Mid-Con, Gas Blending and TPSL, as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18). 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: September 30, 2020 March 31, 2020 (in thousands) Long-lived assets, net: Crude Oil Logistics $ 1,537,011 $ 1,567,503 Water Solutions 3,281,804 3,382,727 Liquids and Refined Products (1) 626,862 654,530 Corporate and Other 43,053 33,570 Total $ 5,488,730 $ 5,638,330 (1) Includes $26.1 million and $25.9 million of non-US long-lived assets at September 30, 2020 and March 31, 2020, respectively. September 30, 2020 March 31, 2020 (in thousands) Total assets: Crude Oil Logistics $ 1,885,442 $ 1,886,211 Water Solutions 3,390,611 3,539,328 Liquids and Refined Products (1) 942,583 972,684 Corporate and Other 67,775 100,513 Total $ 6,286,411 $ 6,498,736 (1) Includes $37.8 million and $37.8 million of non-US total assets at September 30, 2020 and March 31, 2020, respectively.

Transactions with Affiliates

Transactions with Affiliates	6 Months Ended
	Sep. 30, 2020
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 and cost of sales in our unaudited condensed consolidated statement of operations). We also treat and dispose of produced water and solids received from WPX. The following table summarizes our related party transactions for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Sales to WPX $ 12,485 $ 14,392 $ 22,241 $ 22,828 Purchases from WPX (1) $ 82,287 $ 85,396 $ 116,060 $ 166,167 Sales to entities affiliated with management $ 1,243 $ 699 $ 2,123 $ 1,720 Purchases from entities affiliated with management $ 224 $ 959 $ 291 $ 2,115 Purchases from equity method investees $ 292 $ 129 $ 745 $ 129 (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: September 30, 2020 March 31, 2020 (in thousands) Receivables from NGL Energy Holdings LLC $ 8,106 $ 7,781 Receivables from WPX 4,265 3,563 Receivables from entities affiliated with management 387 151 Receivables from equity method investees 2,146 1,439 Total $ 14,904 $ 12,934 Accounts payable to affiliates consist of the following at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Payables to WPX $ 23,379 $ 17,039 Payables to entities affiliated with management 80 149 Payables to equity method investees 526 529 Total $ 23,985 $ 17,717

Revenue from Contracts with Cus

Revenue from Contracts with Customers	6 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Revenue from Contracts with Customer	Revenue from Contracts with CustomersEffective 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. Our revenue contracts in scope under ASC 606 primarily have a single performance obligation and we do not receive material amounts of non-cash consideration. Our costs to obtain or fulfill our revenue contracts were not material as of September 30, 2020. 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 Liquids and Refined Products segment includes $0.6 million of net losses related to changes in the mark-to-market value of these arrangements recorded during the six months ended September 30, 2020. 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 September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 125,381 2022 211,831 2023 206,218 2024 175,632 2025 149,474 Thereafter 167,283 Total (1) $ 1,035,819 (1) Amount includes revenue from a counterparty that filed for Chapter 11 bankruptcy in June 2020. See Note 17 for a further discussion. Contract Assets and Liabilities The following tables summarize the balances of our contract assets and liabilities at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Accounts receivable from contracts with customers $ 348,674 $ 372,930 Contract liabilities balance at March 31, 2020 $ 19,536 Payment received and deferred 21,026 Payment recognized in revenue (16,419) Contract liabilities balance at September 30, 2020 $ 24,143

Leases

Leases	6 Months Ended
	Sep. 30, 2020
Leases [Abstract]
Leases	Leases Lessee Accounting Our leasing activity primarily consists of product storage, office space, real estate, railcars, and equipment. The following table summarizes the components of our lease expense for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Operating lease expense $ 17,953 $ 18,007 $ 36,230 $ 35,814 Variable lease expense 4,334 3,857 9,213 5,665 Short-term lease expense 405 133 801 259 Total lease expense $ 22,692 $ 21,997 $ 46,244 $ 41,738 Amounts in the table above for the three months and six months ended September 30, 2019 do not include lease expense related to TPSL and Gas Blending, as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18). The following table summarizes maturities of our operating lease obligations at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 57,976 2022 43,003 2023 28,294 2024 19,064 2025 9,035 Thereafter 58,585 Total lease payments 215,957 Less imputed interest (50,415) Total operating lease obligations $ 165,542 The following table summarizes supplemental cash flow and non-cash information related to our operating leases for the periods indicated: Six Months Ended September 30, 2020 2019 (1) Cash paid for amounts included in the measurement of operating lease obligations $ 36,135 $ 59,528 Operating lease right-of-use assets obtained in exchange for operating lease obligations $ 19,257 $ 565,152 (1) Amounts include the leases and activity for the TPSL and Gas Blending businesses which were sold during the fiscal year ended March 31, 2020 (see Note 18). Lessor Accounting and Subleases Our lessor arrangements include storage and railcar contracts. 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 September 30, 2020 and 2019, fixed rental revenue was $4.2 million, which includes $0.7 million of sublease revenue, and $5.5 million, which includes $1.0 million of sublease revenue, respectively. During the six months ended September 30, 2020 and 2019, fixed rental revenue was $8.5 million, which includes $1.3 million of sublease revenue, and $10.9 million, which includes $2.4 million of sublease revenue, respectively. The following table summarizes future minimum lease payments receivable under various noncancelable operating lease agreements at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 6,787 2022 6,743 2023 4,202 2024 1,562 2025 690 Thereafter 1,192 Total $ 21,176

Allowance for Current Expected

Allowance for Current Expected Credit Loss	6 Months Ended
	Sep. 30, 2020
Credit Loss [Abstract]
Allowance for Current Expected Credit Loss	Allowance for Current Expected Credit Loss (CECL)ASU 2016-13 requires that an allowance for expected credit losses be recognized for certain financial assets that reflects the current expected credit loss over the financial asset’s contractual life. The valuation allowance considers the risk of loss, even if remote, and considers past events, current conditions and reasonable and supportable forecasts. We are exposed to credit losses primarily through sale of products and services and notes receivable from third-parties. A counterparty’s ability to pay is assessed through a credit process that considers the payment terms, the counterparty’s established credit rating or our assessment of the counterparty’s credit worthiness and other risks. We can require prepayment or collateral to mitigate credit risks. We group our financial assets into pools of counterparties with similar risk characteristics for the purpose of determining the allowance for expected credit losses. Each reporting period, we assess whether a significant change in the risk of expected credit loss has occurred. Among the quantitative and qualitative factors considered in calculating our allowance for expected credit losses are historical financial data, including write-offs and allowances, current conditions, industry risk and current credit ratings. Financial assets will be written off in whole, or in part, when practical recovery efforts have been exhausted and no reasonable expectation of recovery exists. Subsequent recoveries of amounts previously written off are recorded as an increase to the allowance. We manage receivable pools using past due balances as a key credit quality indicator. The following table summarizes changes in our allowance for expected credit losses: Accounts Receivable - Trade Notes Receivable and Other (in thousands) Balance at March 31, 2020 $ 4,540 $ — Cumulative effect adjustment 433 680 Current period provision for expected credit losses (259) — Write-offs charged against the allowance (1,315) (222) Balance at September 30, 2020 $ 3,399 $ 458

Other Matters

Other Matters	6 Months Ended
	Sep. 30, 2020
Other Matters [Abstract]
Other Matters	Other Matters Third-party Loan Receivable As discussed previously in Note 2, we had an outstanding loan receivable of $26.7 million, including accrued interest, associated with our interest in the Facility that is utilized by a third party. Our loan receivable was secured by title to and a lien interest on the Facility. The third party filed a petition for bankruptcy under Chapter 11 of the bankruptcy code in July 2019, at which time we filed our Proof of Claim within the bankruptcy case. The Chapter 11 plan, as supplemented, was approved by the bankruptcy court in February 2020, pursuant to which we were expected to be paid a $26.7 million secured claim as an unimpaired creditor. After the approval of the supplemental plan, the third party attempted to negotiate with us to accept an amount less than the full amount of our claim or to take back the Facility in kind. In May 2020, we filed a motion with the bankruptcy court to compel the third party to pay us the full amount of the claim in accordance with the approved plan. The bankruptcy court ruled in May 2020 that the third party would need to either pay us the full amount of the claim or deliver the Facility to us at a destination of our reasonable choosing. On June 26, 2020, we settled our claim with the third party and agreed to receive $16.3 million, for which we released any and all claims and/or liens with respect to the Facility and transferred title of the Facility to the third party. For the remaining $10.4 million of the loan receivable, we have filed an unsecured claim within the bankruptcy. As of June 30, 2020, we wrote-off approximately $9.4 million, the portion of the unsecured claimed we have deemed uncollectible, and this amount was recorded as a loss within loss on disposal or impairment of assets, net in our unaudited condensed consolidated statement of operations. As of September 30, 2020, the remaining balance of $0.6 million, net of an allowance for an expected credit loss, is recorded within prepaid expenses and other current assets in our unaudited condensed consolidated balance sheet. Third-party Bankruptcy During the three months ended June 30, 2020, Extraction Oil & Gas, Inc. (“Extraction”), who is a significant shipper on our crude oil pipeline, filed a petition for bankruptcy under Chapter 11 of the bankruptcy code. Extraction has transportation contracts pursuant to which it has committed to ship crude oil on our pipeline through October 2026. As part of the bankruptcy filing, Extraction requested that the court authorize it to reject these transportation contracts, effective June 14, 2020. We disputed its ability to reject the transportation contracts, filed objections and took various other legal steps within the bankruptcy proceedings to protect the value to us of the contracts at issue. On November 2, 2020, the bankruptcy court issued a bench ruling granting Extraction’s motion to reject the transportation contracts effective as of June 14, 2020. As a result, we intend to appeal the bankruptcy court’s ruling on the basis of the numerous infirmities we believe are contained in the ruling. We are unable to estimate whether our appeal or other legal actions we avail ourselves to will prove satisfactory to us. Extraction has continued to utilize the services under the transportation contracts by nominating and delivering barrels to be shipped on our pipeline. During the three months ended September 30, 2020, Extraction has paid us for the barrels that have actually been shipped but has not paid for the difference between the minimum volume commitment specified under the contracts and the actual volumes shipped (“deficiency volumes”). As of September 30, 2020, the amount owed by Extraction related to the deficiency volumes is $5.7 million. With respect to the deficiency volumes, we will file an administrative, or secured claim, with the bankruptcy court for the amounts due and believe we will ultimately be able to collect on them even though the contracts were rejected by the bankruptcy court’s recent ruling. In the event that Extraction continues to ship barrels on the pipeline, it will be subject to the terms of the applicable FERC tariff. Extraction also has a water disposal contract with our Water Solutions segment whereby we dispose of its produced water for a fee. On August 10, 2020, they filed a motion with the bankruptcy court to also reject our water disposal contract but subsequently filed a motion to remove that contract from the list of contracts it is asking the court for permission to reject. Since the filing of the bankruptcy petition, Extraction has continued to utilize the services under the water disposal contract and they are current on all its post-filing date receivables but owe us approximately $0.8 million for prepetition services. For this contract, because we are secured by statutory liens, we have requested that Extraction pay us for those prepetition services under authority granted to it by the bankruptcy court. Pending receipt of that payment, we will be filing a secured claim in the bankruptcy case. While we remain amenable to resolving this matter on a commercial basis, these efforts may prove unsuccessful. If our legal actions, including appeals, are also unsuccessful we will assert our approximately $650.0 million unsecured claim in the bankruptcy proceeding. Extraction’s current plan of reorganization is to convert the unsecured claims into equity. While the terms of that plan may change in the plan of reorganization that is ultimately approved by the bankruptcy court and confirmed by Extraction’s impaired creditors, we believe that it is probable that under the current plan of reorganization we could be a significant interest holder in Extraction once they emerge from bankruptcy. In addition, the ultimate loss of these contracts could result in a decline in the fair value of our Crude Oil Logistics segment, as well as certain tangible and intangible assets associated with the crude oil pipeline, resulting in us recording impairment charges against these assets and associated goodwill. As of September 30, 2020, the carrying value of the crude oil pipeline’s long-lived assets was $537.0 million, of which $188.6 million is a customer commitment intangible asset related to one of the transportation contracts. Goodwill for the Crude Oil Logistics reporting unit, which includes the crude oil pipeline, was $579.8 million as of September 30, 2020 (see Note 6).

Discontinued Operations

Discontinued Operations	6 Months Ended
	Sep. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued OperationsAs previously disclosed, on September 30, 2019, we completed the sale of TransMontaigne Product Services, LLC (“TPSL”) to Trajectory Acquisition Company, LLC. On January 3, 2020, we completed the sale of our refined products business in the mid-continent region of the United States (“Mid-Con”) to a third-party. On March 30, 2020, we completed the sale of our gas blending business in the southeastern and eastern regions of the United States (“Gas Blending”) to another third-party. As the sale of each of these businesses represented strategic shifts, the results of operations and cash flows related to these businesses are 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 statement of cash flows. The following table summarizes the results of operations from discontinued operations for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Revenues $ — $ 3,789,232 $ 16,198 $ 8,555,232 Cost of sales 118 3,797,631 16,429 8,561,168 Operating expenses 72 2,547 280 5,502 General and administrative expense — 32 — 53 Depreciation and amortization — 295 — 749 Loss on disposal or impairment of assets, net (1) 116 174,449 1,181 174,449 Operating loss from discontinued operations (306) (185,722) (1,692) (186,689) Interest expense 100 (79) — (110) Other income, net — 69 — 134 Loss from discontinued operations before taxes (206) (185,732) (1,692) (186,665) Income tax benefit (expense) 53 (10) 53 (20) Loss from discontinued operations, net of tax $ (153) $ (185,742) $ (1,639) $ (186,685) (1) Amount for the three months ended September 30, 2020 includes a loss of $0.1 million on the sale of TPSL and amount for the six months ended September 30, 2020 includes a loss of $1.0 million on the sale of Gas Blending and a loss of $0.2 million on the sale of TPSL. Continuing Involvement As of September 30, 2020, we have commitments to sell up to 50.8 million gallons of propane, valued at $35.4 million (based on the contract price), to Superior Plus Corp. and DCC LPG, the purchasers of our former Retail Propane segment, through July 2021. During the three months and six months ended September 30, 2020, we received $1.0 million and $1.6 million, respectively, from DCC LPG for propane sold to them during the period.

Subsequent Events

Subsequent Events	6 Months Ended
	Sep. 30, 2020
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events During October 2020, we repurchased $17.6 million of the 2023 Notes for a payment of $12.4 million (including accrued interest of $0.6 million) and $14.5 million of the 2026 Notes for a payment of $9.2 million (including accrued interest of $0.5 million). On October 29, 2020, we entered into an equipment loan for $45.0 million with Stonebriar Commercial Finance LLC which bears interest at a rate of 8.6% and is secured by certain of our barges and towboats. The loan expires on November 1, 2027.

Significant Accounting Polici_2

Significant Accounting Policies (Policies)	6 Months Ended
	Sep. 30, 2020
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, 2020 was derived from our audited consolidated financial statements for the fiscal year ended March 31, 2020 included in our Annual Report on Form 10-K (“Annual Report”) filed with the SEC on June 1, 2020. These interim unaudited condensed consolidated financial statements should be read in conjunction with our audited consolidated financial statements and notes thereto included in our Annual 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, 2021.
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 and notes 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.
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 a deferred tax liability of $48.6 million and $56.4 million at September 30, 2020 and March 31, 2020, respectively, 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 sheets. 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 six months ended September 30, 2020 was $1.8 million with an effective tax rate of 23.8%. The deferred tax benefit recorded during the six months ended September 30, 2019 was $1.0 million with an effective tax rate of 24.9%. 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 September 30, 2020 or March 31, 2020.
Inventories	InventoriesOur 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.
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.
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 March 2020, the SEC issued “Financial Disclosures About Guarantors and Issuers of Guaranteed Securities and Affiliates Whose Securities Collateralize a Registrant’s Securities”, which amends the disclosure requirements for guarantors and issuers of guaranteed securities registered or being registered in Rule 3-10 of Regulation S-X. The amendment simplifies the disclosure requirements and permits the amended disclosures to be provided outside the footnotes in audited annual or unaudited interim consolidated financial statements in all filings. The guidance is effective for the Partnership for fiscal periods ending after January 4, 2021, although early adoption is permitted. We adopted this guidance effective April 1, 2020 and elected to include the required summarized financial information in “Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations –Liquidity, Sources of Capital and Capital Resource Activities– Guarantor Summarized Financial Information .” 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 trade 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. We adopted ASU No. 2016-13 on April 1, 2020, using the modified retrospective approach with a cumulative effect adjustment of $1.1 million to opening equity at the beginning of the period of adoption. See Note 16 for a further discussion of the impact of the adoption of this ASU on our unaudited condensed consolidated financial statements.

Commitment and Contingencies (P

Commitment and Contingencies (Policies)	6 Months Ended
	Sep. 30, 2020
Commitments and Contingencies Disclosure [Abstract]
Asset Retirement Obligation	Asset Retirement ObligationsWe 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.

Equity (Policies)

Equity (Policies)	6 Months Ended
	Sep. 30, 2020
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. The weighted-average grant price for the six months ended September 30, 2020 was $3.86. 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)	6 Months Ended
	Sep. 30, 2020
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. Our revenue contracts in scope under ASC 606 primarily have a single performance obligation and we do not receive material amounts of non-cash consideration. Our costs to obtain or fulfill our revenue contracts were not material as of September 30, 2020.

Allowance for Current Expecte_2

Allowance for Current Expected Credit Loss (Policies)	6 Months Ended
	Sep. 30, 2020
Credit Loss [Abstract]
Expected credit loss	ASU 2016-13 requires that an allowance for expected credit losses be recognized for certain financial assets that reflects the current expected credit loss over the financial asset’s contractual life. The valuation allowance considers the risk of loss, even if remote, and considers past events, current conditions and reasonable and supportable forecasts.

Significant Accounting Polici_3

Significant Accounting Policies (Tables)	6 Months Ended
	Sep. 30, 2020
Accounting Policies [Abstract]
Schedule of inventories	Inventories consist of the following at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Propane $ 61,455 $ 25,163 Butane 49,615 9,619 Crude oil 57,960 18,201 Biodiesel 3,094 8,195 Ethanol 3,467 1,834 Diesel 1,448 2,414 Other 5,820 4,208 Total $ 182,859 $ 69,634
Schedule of investments in unconsolidated entities	Our investments in unconsolidated entities consist of the following at the dates indicated: Entity Segment Ownership Date Acquired September 30, 2020 March 31, 2020 (in thousands) Water services and land company Water Solutions 50% November 2019 $ 15,082 $ 16,607 Water services and land company Water Solutions 50% November 2019 1,926 2,092 Water services and land company Water Solutions 10% November 2019 2,846 3,384 Aircraft company (2) Corporate and Other 50% June 2019 751 447 Water services company Water Solutions 50% August 2018 435 449 Natural gas liquids terminal company Liquids and Refined Products 50% March 2019 175 203 Total $ 21,215 $ 23,182 (1) Ownership interest percentages are at September 30, 2020. (2) This is an investment with a related party.
Schedule of other noncurrent assets	Other noncurrent assets consist of the following at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Loan receivable (1) $ 2,873 $ 5,374 Line fill (2) 23,039 25,763 Minimum shipping fees - pipeline commitments (3) 15,307 17,443 Other 6,533 14,557 Total $ 47,752 $ 63,137 (1) Amounts at September 30, 2020 and March 31, 2020 represent the noncurrent portion of a loan receivable, net of an allowance for an expected credit loss, with Victory Propane, LLC. In addition, the amount at March 31, 2020 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. The third party filed for Chapter 11 bankruptcy in July 2019. For a further discussion, see Note 17. (2) Represents minimum volumes of product we are required to leave on certain third-party owned pipelines under long-term shipment commitments. At September 30, 2020 and March 31, 2020, line fill consisted of 335,069 barrels of crude oil. At March 31, 2020, line fill also consisted of 262,000 barrels of propane. Line fill held in pipelines we own is included within property, plant and equipment (see Note 5).
Schedule of accrued expenses and other payables	Accrued expenses and other payables consist of the following at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Accrued compensation and benefits $ 29,263 $ 29,990 Excise and other tax liabilities 11,111 9,941 Derivative liabilities 4,014 17,777 Accrued interest 35,977 39,803 Product exchange liabilities 6,199 1,687 Contingent consideration liability (1) 19,294 102,419 Other 32,714 30,445 Total $ 138,572 $ 232,062 (1) Decrease is due to the monthly installment payments made during the six months ended September 30, 2020 related to our acquisition of certain assets of Mesquite Disposals Unlimited, LLC (“Mesquite”). Per the agreement, we made two monthly payments subsequent to September 30, 2020 and currently have one monthly payment remaining.

Loss Per Common Unit (Tables)

Loss Per Common Unit (Tables)	6 Months Ended
	Sep. 30, 2020
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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 Weighted average common units outstanding during the period: Common units - Basic 128,771,715 126,979,034 128,771,715 126,435,870 Common units - Diluted 128,771,715 126,979,034 128,771,715 126,435,870 For the three months and six months ended September 30, 2020 and 2019, all potential common units or convertible securities were considered antidilutive.
Schedule of loss per common unit	Our loss per common unit is as follows for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands, except unit and per unit amounts) Income (loss) from continuing operations $ 5,988 $ (15,624) $ (27,778) $ (6,642) Less: Continuing operations (income) loss attributable to noncontrolling interests (168) 129 (219) 397 Net income (loss) from continuing operations attributable to NGL Energy Partners LP 5,820 (15,495) (27,997) (6,245) Less: Distributions to preferred unitholders (1) (23,770) (17,063) (45,824) (146,523) Less: Continuing operations net loss (income) allocated to general partner (2) 17 (3) 73 81 Net loss from continuing operations allocated to common unitholders $ (17,933) $ (32,561) $ (73,748) $ (152,687) Loss from discontinued operations, net of tax $ (153) $ (185,742) $ (1,639) $ (186,685) Less: Discontinued operations loss allocated to general partner (2) 1 186 2 187 Net loss from discontinued operations allocated to common unitholders $ (152) $ (185,556) $ (1,637) $ (186,498) Net loss allocated to common unitholders $ (18,085) $ (218,117) $ (75,385) $ (339,185) Basic loss per common unit Loss from continuing operations $ (0.14) $ (0.26) $ (0.57) $ (1.21) Loss from discontinued operations, net of tax $ — $ (1.46) $ (0.01) $ (1.47) Net loss $ (0.14) $ (1.72) $ (0.58) $ (2.68) Diluted loss per common unit Loss from continuing operations $ (0.14) $ (0.26) $ (0.57) $ (1.21) Loss from discontinued operations, net of tax $ — $ (1.46) $ (0.01) $ (1.47) Net loss $ (0.14) $ (1.72) $ (0.58) $ (2.68) Basic weighted average common units outstanding 128,771,715 126,979,034 128,771,715 126,435,870 Diluted weighted average common units outstanding 128,771,715 126,979,034 128,771,715 126,435,870 (1) This amount includes distributions to preferred unitholders. The final accretion for the beneficial conversion of the 10.75% Class A Convertible Preferred Units and the excess of the 10.75% Class A Convertible Preferred Units repurchase price over the carrying value of the units are included in the six months ended September 30, 2019. (2) Net loss (income) allocated to the general partner includes distributions to which it is entitled as the holder of incentive distribution rights.

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	6 Months Ended
	Sep. 30, 2020
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 September 30, 2020 March 31, 2020 (in years) (in thousands) Natural gas liquids terminal and storage assets 2 - 30 $ 316,693 $ 314,694 Pipeline and related facilities 30 - 40 244,031 244,751 Vehicles and railcars 3 - 25 126,150 123,937 Water treatment facilities and equipment 3 - 30 1,859,149 1,525,859 Crude oil tanks and related equipment 2 - 30 233,571 234,143 Barges and towboats 5 - 30 137,784 125,162 Information technology equipment 3 - 7 39,258 34,261 Buildings and leasehold improvements 3 - 40 160,886 151,690 Land 101,199 91,446 Tank bottoms and line fill (1) 20,275 20,346 Other 3 - 20 15,136 14,627 Construction in progress 165,413 499,707 3,419,545 3,380,623 Accumulated depreciation (619,820) (529,068) Net property, plant and equipment $ 2,799,725 $ 2,851,555 (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.
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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Depreciation expense $ 53,290 $ 31,334 $ 100,013 $ 56,790 Capitalized interest expense $ 445 $ — $ 2,113 $ — Amounts in the table above for the three months and six months ended September 30, 2019 do not include depreciation expense and capitalized interest expense related to TPSL (as defined herein), as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18).
Schedule of (gain) loss on disposal or impairment of assets	We record (gains) losses from the sales of property, plant and equipment and any write-downs in value due to impairment within 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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Crude Oil Logistics $ — $ (257) $ 1,844 $ (790) Water Solutions 6,414 3,551 6,740 3,599 Liquids and Refined Products 43 (4) 47 (7) Corporate and Other (2) — (2) — Total $ 6,455 $ 3,290 $ 8,629 $ 2,802

Goodwill (Tables)

Goodwill (Tables)	6 Months Ended
	Sep. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of changes in goodwill by segment	The following table summarizes changes in goodwill by segment during the six months ended September 30, 2020: Crude Oil Water Liquids and Total (in thousands) Balances at March 31, 2020 $ 579,846 $ 294,658 $ 119,083 $ 993,587 Revisions to acquisition accounting (Note 4) — (11,348) — (11,348) Balances at September 30, 2020 $ 579,846 $ 283,310 $ 119,083 $ 982,239

Intangible Assets (Tables)

Intangible Assets (Tables)	6 Months Ended
	Sep. 30, 2020
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Schedule of finite-lived intangible assets	Our intangible assets consist of the following at the dates indicated: September 30, 2020 March 31, 2020 Description Amortizable Lives Gross Carrying Accumulated Net Gross Carrying Accumulated Net (in years) (in thousands) Amortizable: Customer relationships 3 - 30 $ 1,434,938 $ (490,601) $ 944,337 $ 1,435,573 $ (445,250) $ 990,323 Customer commitments 10 - 25 502,000 (131,017) 370,983 502,000 (111,677) 390,323 Pipeline capacity rights 30 7,799 (1,777) 6,022 7,799 (1,647) 6,152 Rights-of-way and easements 1 - 45 90,898 (7,839) 83,059 89,476 (6,506) 82,970 Water rights 13 - 30 100,369 (11,412) 88,957 100,937 (8,441) 92,496 Executory contracts and other agreements 5 - 30 48,659 (19,776) 28,883 48,570 (18,210) 30,360 Non-compete agreements 2 - 24 12,714 (5,762) 6,952 12,723 (4,735) 7,988 Debt issuance costs (1) 3 - 5 44,499 (38,075) 6,424 44,051 (34,983) 9,068 Total amortizable 2,241,876 (706,259) 1,535,617 2,241,129 (631,449) 1,609,680 Non-amortizable: Trade names 2,800 — 2,800 2,800 — 2,800 Total $ 2,244,676 $ (706,259) $ 1,538,417 $ 2,243,929 $ (631,449) $ 1,612,480
Schedule of indefinite-lived intangible assets	Our intangible assets consist of the following at the dates indicated: September 30, 2020 March 31, 2020 Description Amortizable Lives Gross Carrying Accumulated Net Gross Carrying Accumulated Net (in years) (in thousands) Amortizable: Customer relationships 3 - 30 $ 1,434,938 $ (490,601) $ 944,337 $ 1,435,573 $ (445,250) $ 990,323 Customer commitments 10 - 25 502,000 (131,017) 370,983 502,000 (111,677) 390,323 Pipeline capacity rights 30 7,799 (1,777) 6,022 7,799 (1,647) 6,152 Rights-of-way and easements 1 - 45 90,898 (7,839) 83,059 89,476 (6,506) 82,970 Water rights 13 - 30 100,369 (11,412) 88,957 100,937 (8,441) 92,496 Executory contracts and other agreements 5 - 30 48,659 (19,776) 28,883 48,570 (18,210) 30,360 Non-compete agreements 2 - 24 12,714 (5,762) 6,952 12,723 (4,735) 7,988 Debt issuance costs (1) 3 - 5 44,499 (38,075) 6,424 44,051 (34,983) 9,068 Total amortizable 2,241,876 (706,259) 1,535,617 2,241,129 (631,449) 1,609,680 Non-amortizable: Trade names 2,800 — 2,800 2,800 — 2,800 Total $ 2,244,676 $ (706,259) $ 1,538,417 $ 2,243,929 $ (631,449) $ 1,612,480
Schedule of amortization expense	Amortization expense is as follows for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, Recorded In 2020 2019 2020 2019 (in thousands) Depreciation and amortization $ 34,179 $ 31,779 $ 71,442 $ 60,077 Cost of sales 76 89 153 176 Interest expense 1,560 1,280 3,092 2,556 Operating expenses 61 111 123 262 Total $ 35,876 $ 33,259 $ 74,810 $ 63,071 Amounts in the table above for the three months and six months ended September 30, 2019 do not include amortization expense related to TPSL, as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18).
Schedule of expected amortization of intangible assets	Expected amortization of our intangible assets is as follows (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 69,530 2022 131,313 2023 122,732 2024 116,530 2025 100,300 Thereafter 995,212 Total $ 1,535,617

Long-Term Debt (Tables)

Long-Term Debt (Tables)	6 Months Ended
	Sep. 30, 2020
Long-Term Debt
Schedule of long-term debt	Our long-term debt consists of the following at the dates indicated: September 30, 2020 March 31, 2020 Face Unamortized Book Face Unamortized Book (in thousands) Revolving credit facility: Expansion capital borrowings $ 1,466,000 $ — $ 1,466,000 $ 1,120,000 $ — $ 1,120,000 Working capital borrowings 236,500 — 236,500 350,000 — 350,000 Senior unsecured notes: 7.500% Notes due 2023 (“2023 Notes”) 572,856 (4,387) 568,469 607,323 (5,405) 601,918 6.125% Notes due 2025 (“2025 Notes”) 380,020 (3,717) 376,303 387,320 (4,217) 383,103 7.500% Notes due 2026 (“2026 Notes”) 400,823 (5,701) 395,122 450,000 (6,975) 443,025 Bridge term credit agreement — — — 250,000 (3,198) 246,802 Term credit agreement 250,000 (8,462) 241,538 — — — Other long-term debt 4,357 — 4,357 4,683 — 4,683 3,310,556 (22,267) 3,288,289 3,169,326 (19,795) 3,149,531 Less: Current maturities (2) 13,123 — 13,123 4,683 — 4,683 Long-term debt $ 3,297,433 $ (22,267) $ 3,275,166 $ 3,164,643 $ (19,795) $ 3,144,848 (1) Debt issuance costs related to the Revolving Credit Facility and the Sawtooth credit agreement are reported within intangible assets, rather than as a reduction of the carrying amount of long-term debt. (2) Current maturities include the 2023 Notes that were repurchased in October 2020 (see Note 19 ) but had trade dates in September 2020.
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, 2021 (six months) $ 3,247 2022 6,451 2023 6,442 2024 3,254 2025 1,802 Thereafter 1,071 Total $ 22,267
Schedule of repurchases	The following table summarizes repurchases of Senior Unsecured Notes for the periods indicated: Three Months Ended Six Months Ended September 30, September 30, 2020 2020 (in thousands) 2023 Notes Notes repurchased $ 19,467 $ 34,467 Cash paid (excluding payments of accrued interest) $ 13,331 $ 21,752 Gain on early extinguishment of debt (1) $ 5,986 $ 12,435 2025 Notes Notes repurchased $ — $ 7,300 Cash paid (excluding payments of accrued interest) $ — $ 3,647 Gain on early extinguishment of debt (2) $ — $ 3,575 2026 Notes Notes repurchased $ 24,258 $ 49,177 Cash paid (excluding payments of accrued interest) $ 16,128 $ 29,100 Gain on early extinguishment of debt (3) $ 7,782 $ 19,349 (1) Gain on early extinguishment of debt for the three months and six months ended September 30, 2020 is inclusive of the write-off of debt issuance costs of $0.1 million and $0.3 million, respectively. The gain is reported within gain on early extinguishment of liabilities, net within our unaudited condensed consolidated statement of operations. (2) Gain on early extinguishment of debt for the six months ended September 30, 2020 is inclusive of the write-off of debt issuance costs of $0.1 million. The gain is reported within gain on early extinguishment of liabilities, net within our unaudited condensed consolidated statement of operations. (3) Gain on early extinguishment of debt for the three months and six months ended September 30, 2020 is inclusive of the write-off of debt issuance costs of $0.3 million and $0.7 million, respectively. The gain is reported within gain on early extinguishment of liabilities, net within our unaudited condensed consolidated statement of operations.
Schedule of maturities of long-term debt	The scheduled maturities of our long-term debt are as follows at September 30, 2020: Fiscal Year Ending March 31, Revolving Senior Term Credit Other Total (in thousands) 2021 (six months) $ — $ 8,766 $ — $ 4,357 $ 13,123 2022 1,702,500 — — — 1,702,500 2023 — — — — — 2024 — 564,090 250,000 — 814,090 2025 — 380,020 — — 380,020 Thereafter — 400,823 — — 400,823 Total $ 1,702,500 $ 1,353,699 $ 250,000 $ 4,357 $ 3,310,556

Commitments and Contingencies (

Commitments and Contingencies (Tables)	6 Months Ended
	Sep. 30, 2020
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, 2020 $ 18,416 Liabilities incurred 4,703 Accretion expense 867 Balance at September 30, 2020 $ 23,986
Schedule of future minimum payments under contractual commitments	The following table summarizes future minimum payments under these agreements at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 5,844 2022 11,779 2023 4,497 2024 197 2025 172 Thereafter 526 Total $ 23,015
Schedule of future minimum payments under pipeline capacity agreements	The following table summarizes future minimum throughput payments under these agreements at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 17,608 2022 35,314 2023 35,314 2024 35,410 2025 30,897 Total $ 154,543
Schedule of outstanding purchase commitments	At September 30, 2020, we had the following commodity purchase commitments (in thousands): Crude Oil (1) Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Purchase Commitments: 2021 (six months) $ 36,089 954 $ 12,216 26,248 2022 — — 2,495 5,766 Total $ 36,089 954 $ 14,711 32,014 Index-Price Commodity Purchase Commitments: 2021 (six months) $ 615,291 15,950 $ 427,537 759,793 2022 774,050 18,484 19,544 37,173 2023 689,702 15,702 — — 2024 640,959 14,359 — — 2025 464,404 10,220 — — Thereafter 17,878 389 — — Total $ 3,202,284 75,104 $ 447,081 796,966 (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 September 30, 2020, we had the following commodity sale commitments (in thousands): Crude Oil Natural Gas Liquids Value Volume Value Volume Fixed-Price Commodity Sale Commitments: 2021 (six months) $ 36,156 954 $ 112,490 174,109 2022 — — 5,886 10,585 Total $ 36,156 954 $ 118,376 184,694 Index-Price Commodity Sale Commitments: 2021 (six months) $ 498,465 12,351 $ 564,739 741,188 2022 203,569 4,745 14,042 20,280 2023 208,153 4,745 290 455 2024 212,210 4,758 — — 2025 215,198 4,745 — — Thereafter 17,878 390 — — Total $ 1,355,473 31,734 $ 579,071 761,923

Equity (Tables)

Equity (Tables)	6 Months Ended
	Sep. 30, 2020
Equity
Schedule of distributions declared	The following table summarizes distributions declared on our common units during the last three quarters: Date Declared Record Date Payment Date Amount Per Unit Amount Paid/Payable Amount Paid/Payable (in thousands) (in thousands) April 27, 2020 May 7, 2020 May 15, 2020 $ 0.2000 $ 25,754 $ 26 July 23, 2020 August 6, 2020 August 14, 2020 $ 0.2000 $ 25,754 $ 26 October 27, 2020 November 6, 2020 November 13, 2020 $ 0.1000 $ 12,804 $ 13
Service awards
Equity
Schedule of Service Awards activity	The following table summarizes the Service Award activity during the six months ended September 30, 2020: Unvested Service Award units at March 31, 2020 1,371,425 Units granted 6,000 Units forfeited (19,500) Unvested Service Award units at September 30, 2020 1,357,925
Schedule of scheduled vesting of Service Awards	The following table summarizes the scheduled vesting of our unvested Service Award units at September 30, 2020: Fiscal Year Ending March 31, 2021 (six months) 903,700 2022 454,225 Total 1,357,925
Schedule of estimated future expense to be recorded for Service Awards	The following table summarizes the estimated future expense we expect to record on the unvested Service Award units at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 2,187 2022 1,695 Total $ 3,882
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 three quarters: Amount Paid to Class B Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) March 16, 2020 March 31, 2020 April 15, 2020 $ 0.5625 $ 7,079 June 15, 2020 June 30, 2020 July 15, 2020 $ 0.5625 $ 7,079 September 15, 2020 September 30, 2020 October 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) March 16, 2020 March 31, 2020 April 15, 2020 $ 0.6016 $ 1,083 June 15, 2020 June 30, 2020 July 15, 2020 $ 0.6016 $ 1,083 September 15, 2020 September 30, 2020 October 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 three quarters: Amount Paid to Class D Date Declared Record Date Payment Date Amount Per Unit Preferred Unitholders (in thousands) April 27, 2020 May 7, 2020 May 15, 2020 $ 11.25 $ 6,868 July 23, 2020 August 6, 2020 August 14, 2020 $ 11.25 $ 6,946 October 27, 2020 November 6, 2020 November 13, 2020 $ 26.01 $ 15,608

Fair Value of Financial Instr_2

Fair Value of Financial Instruments (Tables)	6 Months Ended
	Sep. 30, 2020
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: September 30, 2020 March 31, 2020 Derivative Derivative Derivative Derivative (in thousands) Level 1 measurements $ 19,795 $ (7,658) $ 64,037 $ (2,235) Level 2 measurements 4,231 (4,060) 25,217 (17,635) 24,026 (11,718) 89,254 (19,870) Netting of counterparty contracts (1) (7,658) 7,658 (2,282) 2,282 Net cash collateral held (1,855) — (50,104) (370) Commodity derivatives $ 14,513 $ (4,060) $ 36,868 $ (17,958) (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: September 30, 2020 March 31, 2020 (in thousands) Prepaid expenses and other current assets $ 14,513 $ 36,868 Accrued expenses and other payables (4,014) (17,777) Other noncurrent liabilities (46) (181) Net commodity derivative asset $ 10,453 $ 18,910
Schedule 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 September 30, 2020: Crude oil fixed-price (1) October 2020–December 2021 (1,209) $ 11,741 Propane fixed-price (1) October 2020–December 2021 938 4,980 Refined products fixed-price (1) October 2020–March 2021 (107) 159 Butane fixed-price (1) October 2020–April 2021 (1,451) (7,702) Other October 2020–March 2022 3,130 12,308 Net cash collateral held (1,855) Net commodity derivative asset $ 10,453 At March 31, 2020: Crude oil fixed-price (1) April 2020–December 2021 (2,252) $ 41,721 Propane fixed-price (1) April 2020–December 2021 415 (738) Refined products fixed-price (1) April 2020–January 2021 (26) 27,401 Other April 2020–March 2022 1,000 69,384 Net cash collateral held (50,474) Net commodity derivative asset $ 18,910 (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.
Schedule of fair value estimates of fixed-rate notes	The following table provides fair value estimates of our fixed-rate notes at September 30, 2020 (in thousands): Senior Unsecured Notes: 2023 Notes $ 383,455 2025 Notes $ 230,867 2026 Notes $ 245,880

Segments (Tables)

Segments (Tables)	6 Months Ended
	Sep. 30, 2020
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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Revenues: Crude Oil Logistics: Topic 606 revenues Crude oil sales $ 418,174 $ 596,674 $ 648,902 $ 1,278,743 Crude oil transportation and other 47,567 43,157 90,208 83,154 Non-Topic 606 revenues 3,105 3,619 6,274 7,240 Elimination of intersegment sales (2,005) (2,298) (2,504) (11,825) Total Crude Oil Logistics revenues 466,841 641,152 742,880 1,357,312 Water Solutions: Topic 606 revenues Disposal service fees 76,004 80,209 157,382 131,349 Sale of recovered crude oil 8,386 14,761 9,754 29,096 Sale of brackish non-potable water 1,147 2,007 2,980 4,103 Other service revenues 3,141 4,272 6,627 8,484 Total Water Solutions revenues 88,678 101,249 176,743 173,032 Liquids and Refined Products: Topic 606 revenues Refined products sales 288,781 639,843 499,328 1,314,556 Propane sales 136,538 115,778 258,066 255,152 Butane sales 89,920 87,821 145,117 170,046 Other product sales 90,418 116,461 138,753 231,066 Service revenues 6,683 8,262 13,025 17,049 Non-Topic 606 revenues 797 98,626 39,514 163,804 Elimination of intersegment sales (813) (5,120) (1,481) (6,309) Total Liquids and Refined Products revenues 612,324 1,061,671 1,092,322 2,145,364 Corporate and Other: Non-Topic 606 revenues 315 264 628 519 Total Corporate and Other revenues 315 264 628 519 Total revenues $ 1,168,158 $ 1,804,336 $ 2,012,573 $ 3,676,227 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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Depreciation and Amortization: Crude Oil Logistics $ 17,232 $ 17,693 $ 34,027 $ 35,278 Water Solutions 62,282 38,031 120,477 66,254 Liquids and Refined Products 7,102 6,825 15,335 14,266 Corporate and Other 4,210 3,031 8,667 5,899 Total depreciation and amortization $ 90,826 $ 65,580 $ 178,506 $ 121,697 Operating Income (Loss): Crude Oil Logistics $ 48,239 $ 38,520 $ 71,559 $ 72,322 Water Solutions (13,277) 21,274 (29,324) 34,963 Liquids and Refined Products 14,338 8,798 18,900 24,169 Corporate and Other (12,984) (38,477) (35,604) (53,819) Total operating income $ 36,316 $ 30,115 $ 25,531 $ 77,635
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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Crude Oil Logistics $ 3,098 $ 4,059 $ 8,770 $ 18,864 Water Solutions 12,260 941,511 32,962 1,145,411 Liquids and Refined Products 3,188 5,495 4,720 11,048 Corporate and Other 5,872 2,319 7,904 3,058 Total $ 24,418 $ 953,384 $ 54,356 $ 1,178,381 All of the tables above do not include amounts for the three months and six months ended September 30, 2019 related to Mid-Con, Gas Blending and TPSL, as these amounts have been classified as discontinued operations within our unaudited condensed consolidated statements of operations (see Note 18).
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: September 30, 2020 March 31, 2020 (in thousands) Long-lived assets, net: Crude Oil Logistics $ 1,537,011 $ 1,567,503 Water Solutions 3,281,804 3,382,727 Liquids and Refined Products (1) 626,862 654,530 Corporate and Other 43,053 33,570 Total $ 5,488,730 $ 5,638,330 (1) Includes $26.1 million and $25.9 million of non-US long-lived assets at September 30, 2020 and March 31, 2020, respectively. September 30, 2020 March 31, 2020 (in thousands) Total assets: Crude Oil Logistics $ 1,885,442 $ 1,886,211 Water Solutions 3,390,611 3,539,328 Liquids and Refined Products (1) 942,583 972,684 Corporate and Other 67,775 100,513 Total $ 6,286,411 $ 6,498,736 (1) Includes $37.8 million and $37.8 million of non-US total assets at September 30, 2020 and March 31, 2020, respectively.

Transactions with Affiliates (T

Transactions with Affiliates (Tables)	6 Months Ended
	Sep. 30, 2020
Related Party Transactions [Abstract]
Schedule of purchase and sale transactions of products and services	The following table summarizes our related party transactions for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Sales to WPX $ 12,485 $ 14,392 $ 22,241 $ 22,828 Purchases from WPX (1) $ 82,287 $ 85,396 $ 116,060 $ 166,167 Sales to entities affiliated with management $ 1,243 $ 699 $ 2,123 $ 1,720 Purchases from entities affiliated with management $ 224 $ 959 $ 291 $ 2,115 Purchases from equity method investees $ 292 $ 129 $ 745 $ 129 (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: September 30, 2020 March 31, 2020 (in thousands) Receivables from NGL Energy Holdings LLC $ 8,106 $ 7,781 Receivables from WPX 4,265 3,563 Receivables from entities affiliated with management 387 151 Receivables from equity method investees 2,146 1,439 Total $ 14,904 $ 12,934
Schedule of accounts payable to affiliates	Accounts payable to affiliates consist of the following at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Payables to WPX $ 23,379 $ 17,039 Payables to entities affiliated with management 80 149 Payables to equity method investees 526 529 Total $ 23,985 $ 17,717

Revenue from Contracts with C_3

Revenue from Contracts with Customers (Tables)	6 Months Ended
	Sep. 30, 2020
Revenue from Contract with Customer [Abstract]
Schedule of amount and timing of remaining performance obligations	The following table summarizes the amount and timing of revenue recognition for such contracts at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 125,381 2022 211,831 2023 206,218 2024 175,632 2025 149,474 Thereafter 167,283 Total (1) $ 1,035,819 (1) Amount includes revenue from a counterparty that filed for Chapter 11 bankruptcy in June 2020. See Note 17 for a further discussion.
Schedule of contract assets and liabilities	The following tables summarize the balances of our contract assets and liabilities at the dates indicated: September 30, 2020 March 31, 2020 (in thousands) Accounts receivable from contracts with customers $ 348,674 $ 372,930 Contract liabilities balance at March 31, 2020 $ 19,536 Payment received and deferred 21,026 Payment recognized in revenue (16,419) Contract liabilities balance at September 30, 2020 $ 24,143

Leases (Tables)

Leases (Tables)	6 Months Ended
	Sep. 30, 2020
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 September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Operating lease expense $ 17,953 $ 18,007 $ 36,230 $ 35,814 Variable lease expense 4,334 3,857 9,213 5,665 Short-term lease expense 405 133 801 259 Total lease expense $ 22,692 $ 21,997 $ 46,244 $ 41,738
Schedule of maturities of operating lease obligations	The following table summarizes maturities of our operating lease obligations at September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 57,976 2022 43,003 2023 28,294 2024 19,064 2025 9,035 Thereafter 58,585 Total lease payments 215,957 Less imputed interest (50,415) Total operating lease obligations $ 165,542
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 periods indicated: Six Months Ended September 30, 2020 2019 (1) Cash paid for amounts included in the measurement of operating lease obligations $ 36,135 $ 59,528 Operating lease right-of-use assets obtained in exchange for operating lease obligations $ 19,257 $ 565,152 (1) Amounts include the leases and activity for the TPSL and Gas Blending businesses which were sold during the fiscal year ended March 31, 2020 (see Note 18).
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 September 30, 2020 (in thousands): Fiscal Year Ending March 31, 2021 (six months) $ 6,787 2022 6,743 2023 4,202 2024 1,562 2025 690 Thereafter 1,192 Total $ 21,176

Allowance for Current Expecte_3

Allowance for Current Expected Credit Loss (Tables)	6 Months Ended
	Sep. 30, 2020
Credit Loss [Abstract]
Schedule of allowance for expected credit losses	The following table summarizes changes in our allowance for expected credit losses: Accounts Receivable - Trade Notes Receivable and Other (in thousands) Balance at March 31, 2020 $ 4,540 $ — Cumulative effect adjustment 433 680 Current period provision for expected credit losses (259) — Write-offs charged against the allowance (1,315) (222) Balance at September 30, 2020 $ 3,399 $ 458

Discontinued Operations (Tables

Discontinued Operations (Tables)	6 Months Ended
	Sep. 30, 2020
Discontinued Operations and Disposal Groups [Abstract]
Schedule of results of operations of discontinued operations	The following table summarizes the results of operations from discontinued operations for the periods indicated: Three Months Ended September 30, Six Months Ended September 30, 2020 2019 2020 2019 (in thousands) Revenues $ — $ 3,789,232 $ 16,198 $ 8,555,232 Cost of sales 118 3,797,631 16,429 8,561,168 Operating expenses 72 2,547 280 5,502 General and administrative expense — 32 — 53 Depreciation and amortization — 295 — 749 Loss on disposal or impairment of assets, net (1) 116 174,449 1,181 174,449 Operating loss from discontinued operations (306) (185,722) (1,692) (186,689) Interest expense 100 (79) — (110) Other income, net — 69 — 134 Loss from discontinued operations before taxes (206) (185,732) (1,692) (186,665) Income tax benefit (expense) 53 (10) 53 (20) Loss from discontinued operations, net of tax $ (153) $ (185,742) $ (1,639) $ (186,685) (1) Amount for the three months ended September 30, 2020 includes a loss of $0.1 million on the sale of TPSL and amount for the six months ended September 30, 2020 includes a loss of $1.0 million on the sale of Gas Blending and a loss of $0.2 million on the sale of TPSL.

Significant Accounting Polici_4

Significant Accounting Policies - Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Accounting Policies [Abstract]
Deferred tax liability	$ 48.6		$ 56.4
Deferred tax benefit	$ 1.8	$ 1
Effective tax rate	23.80%	24.90%

Significant Accounting Polici_5

Significant Accounting Policies - Inventories (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Inventories
Propane	$ 61,455	$ 25,163
Butane	49,615	9,619
Crude oil	57,960	18,201
Biodiesel	3,094	8,195
Ethanol	3,467	1,834
Diesel	1,448	2,414
Other	5,820	4,208
Total	$ 182,859	$ 69,634

Significant Accounting Polici_6

Significant Accounting Policies - Investments in Unconsolidated Entities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Investments in Unconsolidated Entities
Carrying value	$ 21,215	$ 23,182
Water Services and Land Company No. 1 | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 15,082	16,607
Water Services and Land Company No. 2 | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 1,926	2,092
Water Services and Land Company No. 3 | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	10.00%
Carrying value	$ 2,846	3,384
Aircraft Company | Corporate and other | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 751	447
Water Services Company | Water solutions | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 435	449
Natural Gas Liquids Terminal Company | Liquids and refined products | Operating segment
Investments in Unconsolidated Entities
Ownership interest	50.00%
Carrying value	$ 175	$ 203

Significant Accounting Polici_7

Significant Accounting Policies - Other Noncurrent Assets (Details) $ in Thousands	Sep. 30, 2020USD ($)bbl	Mar. 31, 2020USD ($)bbl
Other Assets, Noncurrent [Abstract]
Loan receivable	$ 2,873	$ 5,374
Line fill	23,039	25,763
Minimum shipping fees - pipeline commitments, noncurrent	15,307	17,443
Other	6,533	14,557
Total	$ 47,752	$ 63,137
Other Noncurrent Assets
Number of contracts	1
Minimum shipping fees - pipeline commitments, total	$ 20,100
Minimum shipping fees - pipeline commitments, current	$ 4,800
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

Significant Accounting Polici_8

Significant Accounting Policies - Accrued Expenses and Other Payables (Details) $ in Thousands	Nov. 09, 2020	Nov. 05, 2020	Sep. 30, 2020USD ($)	Mar. 31, 2020USD ($)
Accrued compensation and benefits			$ 29,263	$ 29,990
Excise and other tax liabilities			11,111	9,941
Derivative liabilities			4,014	17,777
Accrued interest			35,977	39,803
Product exchange liabilities			6,199	1,687
Contingent consideration liability (1)			19,294	102,419
Other			32,714	30,445
Total			$ 138,572	$ 232,062
Subsequent Event | Mesquite
Number of installment payments (amended)	1	2

Significant Accounting Polici_9

Significant Accounting Policies - Recent Accounting Pronouncements (Details) $ in Millions	Apr. 01, 2020USD ($)
Accounting Changes and Error Corrections [Abstract]
Cumulative effect adjustment for adoption of ASU 2016-13	$ 1.1

Loss Per Common Unit (Details)

Loss Per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	Apr. 21, 2016	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Loss Per Common Unit
Income (loss) from continuing operations		$ 5,988	$ (15,624)	$ (27,778)	$ (6,642)
Less: Continuing operations (income) loss attributable to noncontrolling interests		(168)	129	(219)	397
Net income (loss) from continuing operations attributable to NGL Energy Partners LP		5,820	(15,495)	(27,997)	(6,245)
Less: Distributions to preferred unitholders (1)		(23,770)	(17,063)	(45,824)	(146,523)
Less: Continuing operations net loss (income) allocated to general partner (2)		17	(3)	73	81
NET LOSS FROM CONTINUING OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)		(17,933)	(32,561)	(73,748)	(152,687)
Loss from discontinued operations, net of tax		(153)	(185,742)	(1,639)	(186,685)
Less: Discontinued operations loss allocated to general partner (2)		1	186	2	187
NET LOSS FROM DISCONTINUED OPERATIONS ALLOCATED TO COMMON UNITHOLDERS (NOTE 3)		(152)	(185,556)	(1,637)	(186,498)
NET LOSS ALLOCATED TO COMMON UNITHOLDERS		$ (18,085)	$ (218,117)	$ (75,385)	$ (339,185)
BASIC LOSS PER COMMON UNIT
Loss From Continuing Operations		$ (0.14)	$ (0.26)	$ (0.57)	$ (1.21)
Loss From Discontinued Operations, net of Tax		0	(1.46)	(0.01)	(1.47)
Net Loss		(0.14)	(1.72)	(0.58)	(2.68)
DILUTED LOSS PER COMMON UNIT
Loss From Continuing Operations		(0.14)	(0.26)	(0.57)	(1.21)
Loss From Discontinued Operations, net of Tax		0	(1.46)	(0.01)	(1.47)
Net Loss		$ (0.14)	$ (1.72)	$ (0.58)	$ (2.68)
Basic weighted average common units outstanding (in units)		128,771,715	126,979,034	128,771,715	126,435,870
Diluted weighted average common units outstanding (in units)		128,771,715	126,979,034	128,771,715	126,435,870
Class A Convertible Preferred Units [Member] | Oaktree Capital Management L. P. [Member]
DILUTED LOSS PER COMMON UNIT
Preferred units dividend rate	10.75%
Common units
BASIC LOSS PER COMMON UNIT
Loss From Continuing Operations		$ (0.14)	$ (0.26)	$ (0.57)	$ (1.21)
Loss From Discontinued Operations, net of Tax		0	(1.46)	(0.01)	(1.47)
Net Loss		(0.14)	(1.72)	(0.58)	(2.68)
DILUTED LOSS PER COMMON UNIT
Loss From Continuing Operations		(0.14)	(0.26)	(0.57)	(1.21)
Loss From Discontinued Operations, net of Tax		0	(1.46)	(0.01)	(1.47)
Net Loss		$ (0.14)	$ (1.72)	$ (0.58)	$ (2.68)
Basic weighted average common units outstanding (in units)		128,771,715	126,979,034	128,771,715	126,435,870
Diluted weighted average common units outstanding (in units)		128,771,715	126,979,034	128,771,715	126,435,870

Acquisitions - Hillstone (Detai

Acquisitions - Hillstone (Details) - Hillstone $ in Millions	6 Months Ended
	Sep. 30, 2020USD ($)
Business Acquisition
Purchase accounting adjustment, current assets	$ (0.7)
Purchase accounting adjustment, current liabilities	(5.1)
Purchase accounting adjustment, deferred tax liabilities	(6)
Purchase price decrease	$ (0.9)

Property, Plant and Equipment_2

Property, Plant and Equipment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Property, Plant and Equipment
Gross property, plant and equipment	$ 3,419,545		$ 3,419,545		$ 3,380,623
Accumulated depreciation	(619,820)		(619,820)		(529,068)
Net property, plant and equipment	2,799,725		2,799,725		2,851,555
Depreciation expense	53,290	$ 31,334	100,013	$ 56,790
Capitalized interest expense	445	0	2,113	0
Gain (loss) on sales and write-downs of certain assets	6,455	3,290	8,629	2,802
Crude oil logistics
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	0	(257)	1,844	(790)
Water solutions
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	6,414	3,551	6,740	3,599
Liquids and refined products
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	43	$ (4)	47	$ (7)
Corporate Segment
Property, Plant and Equipment
Gain (loss) on sales and write-downs of certain assets	(2)		(2)
Natural gas liquids terminal and storage assets
Property, Plant and Equipment
Gross property, plant and equipment	316,693		$ 316,693		314,694
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	244,031		$ 244,031		244,751
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	126,150		$ 126,150		123,937
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	1,859,149		$ 1,859,149		1,525,859
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	233,571		$ 233,571		234,143
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	137,784		$ 137,784		125,162
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	39,258		$ 39,258		34,261
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	160,886		$ 160,886		151,690
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	101,199		$ 101,199		91,446
Tank bottoms and line fill
Property, Plant and Equipment
Gross property, plant and equipment	20,275		20,275		20,346
Other
Property, Plant and Equipment
Gross property, plant and equipment	15,136		$ 15,136		14,627
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	$ 165,413		$ 165,413		$ 499,707

Goodwill (Details)

Goodwill (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2020USD ($)
Goodwill [Roll Forward]
Goodwill at the beginning of the period	$ 993,587
Revisions to acquisition accounting (Note 4)	(11,348)
Goodwill at the end of the period	982,239
Crude oil logistics
Goodwill [Roll Forward]
Goodwill at the beginning of the period	579,846
Revisions to acquisition accounting (Note 4)	0
Goodwill at the end of the period	579,846
Water solutions
Goodwill [Roll Forward]
Goodwill at the beginning of the period	294,658
Revisions to acquisition accounting (Note 4)	(11,348)
Goodwill at the end of the period	283,310
Liquids and refined products
Goodwill [Roll Forward]
Goodwill at the beginning of the period	119,083
Revisions to acquisition accounting (Note 4)	0
Goodwill at the end of the period	$ 119,083

Intangible Assets (Details)

Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2020	Mar. 31, 2020
Amortizable
Finite-lived intangible assets, gross	$ 2,241,876	$ 2,241,129
Accumulated amortization	(706,259)	(631,449)
Total	1,535,617	1,609,680
INTANGIBLE ASSETS, net of accumulated amortization	1,538,417	1,612,480
Non-Amortizable
Gross carrying amount of intangible assets	$ 2,244,676	2,243,929
Weighted-average remaining amortization period for intangible assets	18 years 8 months 12 days
Trade names
Non-Amortizable
Indefinite-lived intangible assets	$ 2,800	2,800
Customer relationships
Amortizable
Finite-lived intangible assets, gross	1,434,938	1,435,573
Accumulated amortization	(490,601)	(445,250)
Total	$ 944,337	990,323
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	502,000
Accumulated amortization	(131,017)	(111,677)
Total	$ 370,983	390,323
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	$ 7,799	7,799
Accumulated amortization	(1,777)	(1,647)
Total	6,022	6,152
Rights-of-way and easements
Amortizable
Finite-lived intangible assets, gross	90,898	89,476
Accumulated amortization	(7,839)	(6,506)
Total	$ 83,059	82,970
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	$ 100,369	100,937
Accumulated amortization	(11,412)	(8,441)
Total	$ 88,957	92,496
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	$ 48,659	48,570
Accumulated amortization	(19,776)	(18,210)
Total	$ 28,883	30,360
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	$ 12,714	12,723
Accumulated amortization	(5,762)	(4,735)
Total	$ 6,952	7,988
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	$ 44,499	44,051
Accumulated amortization	(38,075)	(34,983)
Total	$ 6,424	$ 9,068
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		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Amortization related to intangible assets
Amortization expense	$ 35,876	$ 33,259	$ 74,810	$ 63,071
Future amortization expense of intangible assets
2021 (six months)	69,530		69,530
2022	131,313		131,313
2023	122,732		122,732
2024	116,530		116,530
2025	100,300		100,300
Thereafter	995,212		995,212
Total	1,535,617		1,535,617		$ 1,609,680
Depreciation and amortization
Amortization related to intangible assets
Amortization expense	34,179	31,779	71,442	60,077
Cost of sales
Amortization related to intangible assets
Amortization expense	76	89	153	176
Interest expense
Amortization related to intangible assets
Amortization expense	1,560	1,280	3,092	2,556
Operating expenses
Amortization related to intangible assets
Amortization expense	$ 61	$ 111	$ 123	$ 262

Long-Term Debt (Details)

Long-Term Debt (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Long-Term Debt
Face amount	$ 3,310,556		$ 3,310,556		$ 3,169,326
Face amount, current portion	13,123		13,123		4,683
Face amount, long-term	3,297,433		3,297,433		3,164,643
LONG-TERM DEBT, debt issuance costs	(22,267)		(22,267)		(19,795)
Debt issuance costs, current, net	0		0		0
Debt issuance costs, noncurrent, net	(22,267)		(22,267)		(19,795)
Book value	3,288,289		3,288,289		3,149,531
Book value, current	13,123		13,123		4,683
LONG-TERM DEBT, net of debt issuance costs and current maturities	3,275,166		3,275,166		3,144,848
Amortization of debt issuance costs	1,700	$ 1,000	3,700	$ 1,800
Expected Future Amortization of Debt Issuance Costs
2021 (six months)	3,247		3,247
2022	6,451		6,451
2023	6,442		6,442
2024	3,254		3,254
2025	1,802		1,802
Thereafter	1,071		1,071
Total	$ 22,267		$ 22,267
7.50% Senior Notes due 2023
Long-Term Debt
Fixed interest rate	7.50%		7.50%
Face amount	$ 572,856		$ 572,856		607,323
LONG-TERM DEBT, debt issuance costs	(4,387)		(4,387)		(5,405)
Book value	$ 568,469		$ 568,469		601,918
6.125% Senior Notes due 2025
Long-Term Debt
Fixed interest rate	6.125%		6.125%
Face amount	$ 380,020		$ 380,020		387,320
LONG-TERM DEBT, debt issuance costs	(3,717)		(3,717)		(4,217)
Book value	$ 376,303		$ 376,303		383,103
7.50% Senior Notes due 2026
Long-Term Debt
Fixed interest rate	7.50%		7.50%
Face amount	$ 400,823		$ 400,823		450,000
LONG-TERM DEBT, debt issuance costs	(5,701)		(5,701)		(6,975)
Book value	395,122		395,122		443,025
Bridge Term Credit Agreement
Long-Term Debt
Face amount	0		0		250,000
LONG-TERM DEBT, debt issuance costs	0		0		(3,198)
Book value	0		0		246,802
Term Credit Agreement
Long-Term Debt
Face amount	250,000		250,000		0
LONG-TERM DEBT, debt issuance costs	(8,462)		(8,462)		0
Book value	241,538		241,538		0
Other long-term debt
Long-Term Debt
Face amount	4,357		4,357		4,683
LONG-TERM DEBT, debt issuance costs	0		0		0
Book value	4,357		4,357		4,683
Expansion Capital Facility | Revolving Credit Facility
Long-Term Debt
Face amount	1,466,000		1,466,000		1,120,000
LONG-TERM DEBT, debt issuance costs	0		0		0
Book value	1,466,000		1,466,000		1,120,000
Working Capital Facility | Revolving Credit Facility
Long-Term Debt
Face amount	236,500		236,500		350,000
LONG-TERM DEBT, debt issuance costs	0		0		0
Book value	$ 236,500		$ 236,500		$ 350,000

Long-Term Debt - Credit Agreeme

Long-Term Debt - Credit Agreement (Details) $ in Millions	6 Months Ended
	Sep. 30, 2020USD ($)
Revolving Credit Facility
Long-Term Debt
Maximum borrowing capacity	$ 1,915
Debt instrument, actual senior secured leverage ratio	3.12
Debt instrument, actual interest coverage ratio	3.51
Debt instrument, actual total leverage indebtedness ratio	5.32
Revolving Credit Facility | Minimum
Long-Term Debt
Commitment fees charged on unused capacity	0.375%
Debt instrument, actual interest coverage ratio	2.50
Revolving Credit Facility | Maximum
Long-Term Debt
Commitment fees charged on unused capacity	0.50%
Debt instrument, actual senior secured leverage ratio	3.50
Debt instrument, actual total leverage indebtedness ratio	5.50
Revolving Credit Facility | LIBOR option
Long-Term Debt
Reference rate	0.16%
Interest rate margin added to variable rate base	2.75%
Revolving Credit Facility | Prime rate
Long-Term Debt
Reference rate	3.25%
Interest rate margin added to variable rate base	1.75%
Revolving Credit Facility
Long-Term Debt
Interest rate	2.95%
Working Capital Facility | Revolving Credit Facility
Long-Term Debt
Maximum borrowing capacity	$ 350
Working Capital Facility | Letter of Credit
Long-Term Debt
Outstanding letters of credit	107.3
Expansion Capital Facility | Revolving Credit Facility
Long-Term Debt
Maximum borrowing capacity	$ 1,565
Letter of Credit | Revolving Credit Facility
Long-Term Debt
Fixed interest rate	2.75%

Long-Term Debt - Senior Unsecur

Long-Term Debt - Senior Unsecured Notes (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Oct. 31, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Long-Term Debt
Notes repurchased				$ 250,000	$ 0
Cash paid (excluding payments of accrued interest)				54,499	0
Gain on early extinguishment of liabilities, net		$ 13,747	$ 0	33,102	$ 0
7.50% Senior Notes due 2023 | Repurchases
Long-Term Debt
Notes repurchased		19,467		34,467
Cash paid (excluding payments of accrued interest)		13,331		21,752
Gain on early extinguishment of liabilities, net		5,986		12,435
Write off of debt issuance costs		100		300
7.50% Senior Notes due 2023 | Subsequent Event | Repurchases
Long-Term Debt
Notes repurchased	$ 17,600
6.125% Senior Notes due 2025 | Repurchases
Long-Term Debt
Notes repurchased		0		7,300
Cash paid (excluding payments of accrued interest)		0		3,647
Gain on early extinguishment of liabilities, net		0		3,575
Write off of debt issuance costs				100
7.50% Senior Notes due 2026 | Repurchases
Long-Term Debt
Notes repurchased		24,258		49,177
Cash paid (excluding payments of accrued interest)		16,128		29,100
Gain on early extinguishment of liabilities, net		7,782		19,349
Write off of debt issuance costs		$ 300		$ 700
7.50% Senior Notes due 2026 | Subsequent Event | Repurchases
Long-Term Debt
Notes repurchased	$ 14,500

Long-Term Debt - Term Credit Ag

Long-Term Debt - Term Credit Agreement (Details) - Term Credit Agreement $ in Millions	6 Months Ended	23 Months Ended
	Sep. 30, 2020	Jun. 03, 2023	Jun. 03, 2020USD ($)
Long-Term Debt
Secured debt			$ 250
Interest rate	9.50%
Debt instrument, actual senior secured leverage ratio	3.12
Debt instrument, actual interest coverage ratio	3.51
Debt instrument, actual total leverage indebtedness ratio	5.32
LIBOR option
Long-Term Debt
LIBOR floor	1.50%
Interest rate margin added to variable rate base	8.00%
Reference rate	1.50%
Maximum
Long-Term Debt
Debt instrument, actual senior secured leverage ratio	3.50
Debt instrument, actual total leverage indebtedness ratio	5.75
Minimum
Long-Term Debt
Debt instrument, actual interest coverage ratio	2.50
Subsequent Event | Maximum
Long-Term Debt
Debt instrument, actual total leverage indebtedness ratio		5.50

Long-Term Debt - Bridge Term Cr

Long-Term Debt - Bridge Term Credit Agreement (Details) - Bridge Term Credit Agreement - USD ($) $ in Millions	Jun. 03, 2020	Jul. 02, 2019
Long-Term Debt
Secured debt		$ 250
Write off of debt issuance costs	$ 2.3

Long-Term Debt - Sawtooth Credi

Long-Term Debt - Sawtooth Credit Agreement (Details) - USD ($)	6 Months Ended
	Sep. 30, 2020	Mar. 31, 2020
Line of Credit Facility
Face amount	$ 3,310,556,000	$ 3,169,326,000
Sawtooth Credit Facility
Line of Credit Facility
Ownership percentage in Sawtooth	71.50%
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	Sep. 30, 2020	Mar. 31, 2020
Long-Term Debt
Face amount	$ 3,310,556	$ 3,169,326
Equipment loan
Long-Term Debt
Face amount	$ 4,400
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	Sep. 30, 2020USD ($)
Maturities
2021 (six months)	$ 13,123
2022	1,702,500
2023	0
2024	814,090
2025	380,020
Thereafter	400,823
Total	3,310,556
Revolving Credit Facility
Maturities
2022	1,702,500
Total	1,702,500
Senior unsecured notes
Maturities
2021 (six months)	8,766
2024	564,090
2025	380,020
Thereafter	400,823
Total	1,353,699
Term Credit Agreement
Maturities
2024	250,000
Total	250,000
Other long-term debt
Maturities
2021 (six months)	4,357
Total	$ 4,357

Commitments and Contingencies -

Commitments and Contingencies - Legal Contingencies (Details) $ in Millions	6 Months Ended
	Sep. 30, 2020USD ($)
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) $ in Millions	Sep. 30, 2020USD ($)
Commitments and Contingencies Disclosure [Abstract]
Environmental matters liability	$ 1.8

Commitments and Contingencies_3

Commitments and Contingencies - Asset Retirement Obligations (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2020USD ($)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at beginning of period	$ 18,416
Liabilities incurred	4,703
Accretion expense	867
Balance at end of period	$ 23,986

Commitments and Contingencies_4

Commitments and Contingencies - Other Commitments (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Sep. 30, 2020USD ($)	Sep. 30, 2020USD ($)
Future minimum payments
2021 (six months)	$ 5,844	$ 5,844
2022	11,779	11,779
2023	4,497	4,497
2024	197	197
2025	172	172
Thereafter	526	526
Total	23,015	23,015
Hillstone Subsidy Payment
Other Commitments
Subsidy Payment	700	1,400
Minimum | Hillstone Subsidy Payment
Other Commitments
Contractual obligation	0	0
Maximum | Hillstone Subsidy Payment
Other Commitments
Contractual obligation	$ 7,300	$ 7,300

Commitments and Contingencies_5

Commitments and Contingencies - Pipeline Capacity Agreements (Details) $ in Thousands	6 Months Ended
	Sep. 30, 2020USD ($)
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
2021 (six months)	$ 17,608
2022	35,314
2023	35,314
2024	35,410
2025	30,897
Total	$ 154,543

Commitments and Contingencies_6

Commitments and Contingencies - Purchase Commitments (Details) gal in Thousands, bbl in Thousands, $ in Thousands	Sep. 30, 2020USD ($)bblgal
Crude oil
Purchase commitments for crude oil and natural gas
Fixed-price purchase commitments, due in remainder of fiscal year	$ 36,089
Fixed-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | bbl	954
Total fixed-price purchase commitments	$ 36,089
Total fixed-price purchase commitments (in barrels/gallons) | bbl	954
Index-price purchase commitments, due remainder of fiscal year	$ 615,291
Index-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | bbl	15,950
Index-price purchase commitments, due in second year	$ 774,050
Index-price purchase commitments (in barrels/gallons), due in second year | bbl	18,484
Index-price purchase commitments, due in third year	$ 689,702
Index-price purchase commitments (in barrels), due in third year | bbl	15,702
Index-price purchase commitments, due in fourth year	$ 640,959
Index-price purchase commitments (in barrels), due in fourth year | bbl	14,359
Index-price purchase commitments, due in fifth year	$ 464,404
Index-price purchase commitments (in barrels), due in fifth year | bbl	10,220
Index-price purchase commitments, due after fifth year	$ 17,878
Index-price purchase commitments (in barrels), due after fifth year | bbl	389
Total index-price purchase commitments	$ 3,202,284
Total index-price purchase commitments (in barrels/gallons) | bbl	75,104
Natural gas liquids
Purchase commitments for crude oil and natural gas
Fixed-price purchase commitments, due in remainder of fiscal year	$ 12,216
Fixed-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | gal	26,248
Fixed-price purchase commitments, due in second year	$ 2,495
Fixed-price purchase commitments (in gallons), due in second year | gal	5,766
Total fixed-price purchase commitments	$ 14,711
Total fixed-price purchase commitments (in barrels/gallons) | gal	32,014
Index-price purchase commitments, due remainder of fiscal year	$ 427,537
Index-price purchase commitments (in barrels/gallons), due in remainder of fiscal year | gal	759,793
Index-price purchase commitments, due in second year	$ 19,544
Index-price purchase commitments (in barrels/gallons), due in second year | gal	37,173
Total index-price purchase commitments	$ 447,081
Total index-price purchase commitments (in barrels/gallons) | gal	796,966

Commitments and Contingencies_7

Commitments and Contingencies - Sale Commitments (Details) gal in Thousands, bbl in Thousands, $ in Thousands	Sep. 30, 2020USD ($)galbbl	Mar. 31, 2020USD ($)
Sale commitments for crude oil and natural gas
Net commodity derivative asset	$ 10,453	$ 18,910
Crude oil
Sale commitments for crude oil and natural gas
Fixed-price sale commitments, due in remainder of fiscal year	$ 36,156
Fixed-price sale commitments (in barrels/gallons), due in remainder of fiscal year | bbl	954
Total fixed-price sale commitments	$ 36,156
Total fixed-price sale commitments (in barrels/gallons) | bbl	954
Index-price sale commitments, due in remainder of fiscal year	$ 498,465
Index-price sale commitments (in barrels/gallons), due in remainder of fiscal year | bbl	12,351
Index-price sale commitments, due in second year	$ 203,569
Index-price sale commitments (in barrels/gallons), due in second year | bbl	4,745
Index-price sale commitments, due in third year	$ 208,153
Index-price sale commitments (in barrels), due in third year | bbl	4,745
Index-price sale commitments, due in fourth year	$ 212,210
Index-price sale commitments (in barrels), due in fourth year | bbl	4,758
Index-price sale commitments, due in fifth year	$ 215,198
Index-price sale commitments (in barrels), due in fifth year | bbl	4,745
Index-price sale commitments, due after fifth year	$ 17,878
Index-price sale commitments (in barrels), due after fifth year | bbl	390
Total index-price sale commitments	$ 1,355,473
Total index-price sale commitment (in barrels/gallons) | bbl	31,734
Natural gas liquids
Sale commitments for crude oil and natural gas
Fixed-price sale commitments, due in remainder of fiscal year	$ 112,490
Fixed-price sale commitments (in barrels/gallons), due in remainder of fiscal year | gal	174,109
Fixed-price sale commitments, due in second year	$ 5,886
Fixed-price sale commitments (in gallons), due in second year | gal	10,585
Total fixed-price sale commitments	$ 118,376
Total fixed-price sale commitments (in barrels/gallons) | gal	184,694
Index-price sale commitments, due in remainder of fiscal year	$ 564,739
Index-price sale commitments (in barrels/gallons), due in remainder of fiscal year | gal	741,188
Index-price sale commitments, due in second year	$ 14,042
Index-price sale commitments (in barrels/gallons), due in second year | gal	20,280
Index-price sale commitments, due in third year	$ 290
Index-price sale commitments (in barrels), due in third year | gal	455
Total index-price sale commitments	$ 579,071
Total index-price sale commitment (in barrels/gallons) | gal	761,923
Prepaid expenses and other current assets
Sale commitments for crude oil and natural gas
Net commodity derivative asset	$ 4,200
Accrued expenses and other payables
Sale commitments for crude oil and natural gas
Net commodity derivative asset	$ 900

Equity - Partnership Equity (De

Equity - Partnership Equity (Details)	6 Months Ended
	Sep. 30, 2020
Common units
Equity
Ownership interest in NGL Energy Holdings LLC	8.69%
General Partner
Equity
General partner interest	0.10%
General Partner | Common units
Equity
General partner interest	0.10%
Limited Partner
Equity
Limited partner interest	99.90%

Equity - Common Unit Repurchase

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

Equity - Distributions (Details

Equity - Distributions (Details) - USD ($) $ / shares in Units, $ in Thousands	Nov. 13, 2020	Oct. 27, 2020	Aug. 14, 2020	Jul. 23, 2020	May 15, 2020	Apr. 27, 2020
Subsequent Event
Amount Per Unit				$ 0.2000		$ 0.2000
Amount Paid/Payable to Limited Partners			$ 25,754		$ 25,754
Amount Paid/Payable to General Partner			$ 26		$ 26
Subsequent Event
Subsequent Event
Amount Per Unit		$ 0.1000
Amount Paid/Payable to Limited Partners	$ 12,804
Amount Paid/Payable to General Partner	$ 13

Equity - Class B Preferred Unit

Equity - Class B Preferred Units (Details) - USD ($)	Oct. 15, 2020	Jul. 15, 2020	Apr. 15, 2020	Jul. 02, 2019	Jun. 13, 2017	Sep. 30, 2019	Jun. 30, 2019
Preferred Units
Preferred units issued, net of offering costs						$ 102,757,000	$ 42,638,000
Class B Perpetual Preferred Units
Preferred Units
Preferred units dividend rate					9.00%
Preferred unit par or stated value per unit					$ 25
Preferred units issued, net of offering costs					$ 202,700,000
Preferred units, underwriting discounts and commissions					6,600,000
Preferred units, offering costs					$ 700,000
Distributions made to preferred unitholders distributions declared per unit		$ 0.5625	$ 0.5625
Amount paid to preferred unitholders		$ 7,079,000	$ 7,079,000
Class B Perpetual Preferred Units
Preferred Units
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)					8,400,000
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	$ 7,079,000

Equity - Class C Preferred Unit

Equity - Class C Preferred Units (Details) - USD ($) $ / shares in Units, $ in Thousands	Oct. 15, 2020	Jul. 15, 2020	Apr. 15, 2020	Apr. 02, 2019	Sep. 30, 2019	Jun. 30, 2019
Schedule of Capitalization, Equity
Preferred units issued, net of offering costs					$ 102,757	$ 42,638
Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
Preferred units dividend rate				9.625%
Preferred unit par or stated value per unit				$ 25
Preferred units issued, net of offering costs				$ 42,900
Preferred units, underwriting discounts and commissions				1,400
Preferred units, offering costs				$ 700
Distributions made to preferred unitholders distributions declared per unit		$ 0.6016	$ 0.6016
Amount paid to preferred unitholders		$ 1,083	$ 1,083
Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
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).
Class C Perpetual Preferred Units | Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
Preferred units, issued (in units)				1,800,000
Subsequent Event | Class C Perpetual Preferred Units
Schedule of Capitalization, Equity
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) $ / shares in Units, $ in Thousands	Nov. 13, 2020USD ($)$ / shares	Aug. 14, 2020USD ($)$ / shares	May 15, 2020USD ($)$ / shares	Oct. 31, 2019USD ($)shares	Jul. 02, 2019USD ($)shares	Aug. 14, 2020USD ($)$ / shares
Class D Preferred Units
Subsequent Event
Preferred units, dividend payment terms					The current distribution rate for the Class D Preferred Units is 9.00% per year per unit (equal to $90.00 per every $1,000 in unit value per year).
Class D Preferred Units First Issuance
Subsequent Event
Temporary equity, issued (in units) | shares					400,000
Proceeds from sale of preferred units and warrants, net of offering costs					$ 385,400
Class D Preferred Units Second Issuance
Subsequent Event
Temporary equity, issued (in units) | shares				200,000
Proceeds from sale of preferred units and warrants, net of offering costs				$ 194,700
Class D Preferred Units
Subsequent Event
Distributions made to preferred unitholders distributions declared per unit | $ / shares		$ 11.25	$ 11.25			$ 11.25
Amount paid to preferred unitholders		$ 6,946	$ 6,868
Dividends paid-in-kind						$ 6,900
Percent of dividend not paid in cash						50.00%
Class D Preferred Units | Subsequent Event
Subsequent Event
Distributions made to preferred unitholders distributions declared per unit | $ / shares	$ 26.01
Amount paid to preferred unitholders	$ 15,608
Adjusted total leverage ratio default rate	0.010
Class D Preferred Units First Issuance
Subsequent Event
Warrants outstanding (in units) | shares					17,000,000
Class D Preferred Units Second Issuance
Subsequent Event
Warrants outstanding (in units) | shares				8,500,000

Equity - Equity-Based Incentive

Equity - Equity-Based Incentive Compensation - Service Awards (Details) - Service awards - USD ($)	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Equity-Based Incentive Compensation
Distributions on Service Awards during the vesting period			$ 0
Weighted-average grant price			$ 3.86
Expense recorded	$ 1,300,000	$ 2,100,000	$ 2,700,000	$ 4,900,000
Service Award Activity
Unvested restricted units at the beginning of the period (in units)			1,371,425
Units granted (in units)			6,000
Units forfeited (in units)			(19,500)
Unvested restricted units at the end of the period (in units)	1,357,925		1,357,925
Expected Future Expense
2021 (six months)			$ 2,187,000
2022			1,695,000
Total			$ 3,882,000
2021 (six months)
Equity-Based Incentive Compensation
Scheduled vesting			903,700
2022
Equity-Based Incentive Compensation
Scheduled vesting			454,225

Equity - Equity-Based Compensat

Equity - Equity-Based Compensation - LTIP (Details) shares in Millions	Sep. 30, 2020shares
Restricted units
LTIP
Number of units available for grant	2.9

Fair Value of Financial Instr_3

Fair Value of Financial Instruments - Fair Value of Commodity Derivative Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Derivative assets (liabilities)
Net commodity derivative asset	$ 10,453	$ 18,910
Prepaid expenses and other current assets
Derivative assets (liabilities)
Net commodity derivative asset	4,200
Accrued expenses and other payables
Derivative assets (liabilities)
Net commodity derivative asset	900
Commodity contracts
Assets:
Derivative assets	24,026	89,254
Netting of counterparty contracts, assets	(7,658)	(2,282)
Net cash collateral held	(1,855)	(50,104)
Commodity derivatives	14,513	36,868
Liabilities:
Derivative liabilities	(11,718)	(19,870)
Netting of counterparty contracts, liabilities	7,658	2,282
Net cash collateral held	0	(370)
Commodity derivatives	(4,060)	(17,958)
Derivative assets (liabilities)
Net commodity derivative asset	10,453	18,910
Commodity contracts | Prepaid expenses and other current assets
Derivative assets (liabilities)
Net commodity derivative asset	14,513	36,868
Commodity contracts | Accrued expenses and other payables
Derivative assets (liabilities)
Net commodity derivative asset	(4,014)	(17,777)
Commodity contracts | Other noncurrent liabilities
Derivative assets (liabilities)
Net commodity derivative asset	(46)	(181)
Level 1 | Commodity contracts
Assets:
Derivative assets	19,795	64,037
Liabilities:
Derivative liabilities	(7,658)	(2,235)
Level 2 | Commodity contracts
Assets:
Derivative assets	4,231	25,217
Liabilities:
Derivative liabilities	$ (4,060)	$ (17,635)

Fair Value of Financial Instr_4

Fair Value of Financial Instruments - Derivative Contract Positions (Details) bbl in Thousands, $ in Thousands	Sep. 30, 2020USD ($)bbl	Mar. 31, 2020USD ($)bbl
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ 12,308	$ 69,384
Net cash collateral held	(1,855)	(50,474)
Net commodity derivative asset	10,453	18,910
Crude oil fixed-price
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ 11,741	$ 41,721
Crude oil fixed-price | Short
Fair value of financial instruments
Net Long (Short) Notional Units (in barrels) | bbl	1,209	2,252
Propane fixed-price
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ 4,980	$ (738)
Propane fixed-price | Long
Fair value of financial instruments
Net Long (Short) Notional Units (in barrels) | bbl	938	415
Refined products fixed-price
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ 159	$ 27,401
Refined products fixed-price | Short
Fair value of financial instruments
Net Long (Short) Notional Units (in barrels) | bbl	107	26
Butane fixed-price
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ (7,702)
Butane fixed-price | Short
Fair value of financial instruments
Net Long (Short) Notional Units (in barrels) | bbl	1,451
Other
Fair value of financial instruments
Fair Value of Net Assets (Liabilities)	$ 3,130	$ 1,000

Fair Value of Financial Instr_5

Fair Value of Financial Instruments - (Losses) Gains From Commodity Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Net adjustments to fair value of commodity derivatives	$ (3,200)	$ 10,300	$ (30,562)	$ 15,860

Fair Value of Financial Instr_6

Fair Value of Financial Instruments - Interest Rate Risk (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Mar. 31, 2020
Interest Rate Risk
Face amount	$ 3,310,556	$ 3,169,326
Term Credit Agreement
Interest Rate Risk
Interest rate	9.50%
Face amount	$ 250,000	$ 0
Revolving Credit Facility
Interest Rate Risk
Outstanding debt	$ 1,700,000
Interest rate	2.95%

Fair Value of Financial Instr_7

Fair Value of Financial Instruments - Fair Value of Fixed-Rate Notes (Details) $ in Thousands	Sep. 30, 2020USD ($)
7.50% Senior Notes due 2023
Fair Value of Fixed-Rate Notes
Fair value of fixed-rate notes	$ 383,455
6.125% Senior Notes due 2025
Fair Value of Fixed-Rate Notes
Fair value of fixed-rate notes	230,867
7.50% Senior Notes due 2026
Fair Value of Fixed-Rate Notes
Fair value of fixed-rate notes	$ 245,880

Segments (Details)

Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Segment information
REVENUES	$ 1,168,158	$ 1,804,336	$ 2,012,573	$ 3,676,227
Depreciation and amortization, including amortization of debt issuance costs	90,826	65,580	178,506	121,697
Operating Income	36,316	30,115	25,531	77,635
Additions to property, plant and equipment and intangible assets	24,418	953,384	54,356	1,178,381
Long-lived assets, net	5,488,730		5,488,730		$ 5,638,330
Total assets	6,286,411		6,286,411		6,498,736
Crude oil logistics
Segment information
Long-lived assets, net	537,000		537,000
Operating segment | Crude oil logistics
Segment information
REVENUES	466,841	641,152	742,880	1,357,312
Depreciation and amortization, including amortization of debt issuance costs	17,232	17,693	34,027	35,278
Operating Income	48,239	38,520	71,559	72,322
Additions to property, plant and equipment and intangible assets	3,098	4,059	8,770	18,864
Long-lived assets, net	1,537,011		1,537,011		1,567,503
Total assets	1,885,442		1,885,442		1,886,211
Operating segment | Crude oil logistics | Crude oil sales
Segment information
REVENUES	418,174	596,674	648,902	1,278,743
Operating segment | Crude oil logistics | Crude oil transportation and other
Segment information
REVENUES	47,567	43,157	90,208	83,154
Operating segment | Crude oil logistics | Non-Topic 606 revenues
Segment information
Non-Topic 606 revenues	3,105	3,619	6,274	7,240
Operating segment | Water solutions
Segment information
REVENUES	88,678	101,249	176,743	173,032
Depreciation and amortization, including amortization of debt issuance costs	62,282	38,031	120,477	66,254
Operating Income	(13,277)	21,274	(29,324)	34,963
Additions to property, plant and equipment and intangible assets	12,260	941,511	32,962	1,145,411
Long-lived assets, net	3,281,804		3,281,804		3,382,727
Total assets	3,390,611		3,390,611		3,539,328
Operating segment | Water solutions | Disposal service fees
Segment information
REVENUES	76,004	80,209	157,382	131,349
Operating segment | Water solutions | Sale of recovered crude oil
Segment information
REVENUES	8,386	14,761	9,754	29,096
Operating segment | Water solutions | Sale of brackish non-potable water
Segment information
REVENUES	1,147	2,007	2,980	4,103
Operating segment | Water solutions | Other revenues
Segment information
REVENUES	3,141	4,272	6,627	8,484
Operating segment | Liquids and refined products
Segment information
REVENUES	612,324	1,061,671	1,092,322	2,145,364
Depreciation and amortization, including amortization of debt issuance costs	7,102	6,825	15,335	14,266
Operating Income	14,338	8,798	18,900	24,169
Additions to property, plant and equipment and intangible assets	3,188	5,495	4,720	11,048
Long-lived assets, net	626,862		626,862		654,530
Total assets	942,583		942,583		972,684
Operating segment | Liquids and refined products | Non-Topic 606 revenues
Segment information
Non-Topic 606 revenues	797	98,626	39,514	163,804
Operating segment | Liquids and refined products | Other revenues
Segment information
REVENUES	6,683	8,262	13,025	17,049
Operating segment | Liquids and refined products | Refined products sales
Segment information
REVENUES	288,781	639,843	499,328	1,314,556
Operating segment | Liquids and refined products | Propane sales
Segment information
REVENUES	136,538	115,778	258,066	255,152
Operating segment | Liquids and refined products | Butane sales
Segment information
REVENUES	89,920	87,821	145,117	170,046
Operating segment | Liquids and refined products | Other product sales
Segment information
REVENUES	90,418	116,461	138,753	231,066
Operating segment | Corporate and other
Segment information
REVENUES	315	264	628	519
Operating segment | Corporate and other | Non-Topic 606 revenues
Segment information
Non-Topic 606 revenues	315	264	628	519
Corporate and other
Segment information
Depreciation and amortization, including amortization of debt issuance costs	4,210	3,031	8,667	5,899
Operating Income	(12,984)	(38,477)	(35,604)	(53,819)
Additions to property, plant and equipment and intangible assets	5,872	2,319	7,904	3,058
Long-lived assets, net	43,053		43,053		33,570
Total assets	67,775		67,775		100,513
Elimination of intersegment sales | Crude oil logistics
Segment information
REVENUES	(2,005)	(2,298)	(2,504)	(11,825)
Elimination of intersegment sales | Liquids and refined products
Segment information
REVENUES	(813)	$ (5,120)	(1,481)	$ (6,309)
Non-US | Liquids and refined products
Segment information
Long-lived assets, net	26,100		26,100		25,900
Total assets	$ 37,800		$ 37,800		$ 37,800

Transactions with Affiliates (D

Transactions with Affiliates (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Transactions with Affiliates
Accounts receivable-affiliates	$ 14,904		$ 14,904		$ 12,934
Accounts payable-affiliates	23,985		23,985		17,717
WPX Energy
Transactions with Affiliates
Sales to related party	12,485	$ 14,392	22,241	$ 22,828
Purchases from related party	82,287	85,396	116,060	166,167
Accounts receivable-affiliates	4,265		4,265		3,563
Accounts payable-affiliates	23,379		23,379		17,039
Entities affiliated with management
Transactions with Affiliates
Sales to related party	1,243	699	2,123	1,720
Purchases from related party	224	959	291	2,115
Accounts receivable-affiliates	387		387		151
Accounts payable-affiliates	80		80		149
Equity method investee
Transactions with Affiliates
Purchases from related party	292	$ 129	745	$ 129
Accounts receivable-affiliates	2,146		2,146		1,439
Accounts payable-affiliates	526		526		529
NGL Energy Holdings LLC
Transactions with Affiliates
Accounts receivable-affiliates	$ 8,106		$ 8,106		$ 7,781

Revenue from Contracts with C_4

Revenue from Contracts with Customers - Revenue Agreements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Net adjustments to fair value of commodity derivatives	$ (3,200)	$ 10,300	$ (30,562)	$ 15,860
Liquids and refined products
Net adjustments to fair value of commodity derivatives			$ 600

Revenue from Contracts with C_5

Revenue from Contracts with Customers - Performance Obligations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Revenue from Contracts with Customers - Performance Obligations [Abstract]
Revenue expected to be recognized as of September 30, 2020	$ 1,035,819		$ 1,035,819
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Net adjustments to fair value of commodity derivatives	(3,200)	$ 10,300	(30,562)	$ 15,860
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2020-10-01
Revenue from Contracts with Customers - Performance Obligations [Abstract]
Revenue expected to be recognized as of September 30, 2020	$ 125,381		$ 125,381
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	6 months		6 months
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Revenue from Contracts with Customers - Performance Obligations [Abstract]
Revenue expected to be recognized as of September 30, 2020	$ 211,831		$ 211,831
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-04-01
Revenue from Contracts with Customers - Performance Obligations [Abstract]
Revenue expected to be recognized as of September 30, 2020	$ 206,218		$ 206,218
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-04-01
Revenue from Contracts with Customers - Performance Obligations [Abstract]
Revenue expected to be recognized as of September 30, 2020	$ 175,632		$ 175,632
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-04-01
Revenue from Contracts with Customers - Performance Obligations [Abstract]
Revenue expected to be recognized as of September 30, 2020	$ 149,474		$ 149,474
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year		1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-04-01
Revenue from Contracts with Customers - Performance Obligations [Abstract]
Revenue expected to be recognized as of September 30, 2020	$ 167,283		$ 167,283
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year		1 year

Revenue from Contracts with C_6

Revenue from Contracts with Customers - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2020	Mar. 31, 2020
Contract with Customer, Asset and Liability [Abstract]
Accounts receivable from contracts with customers	$ 372,930	$ 348,674
Contract liabilities balance	24,143	$ 19,536
Payment received and deferred	21,026
Payment recognized in revenue	$ (16,419)

Leases - Lease Expense (Details

Leases - Lease Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Lease, Cost [Abstract]
Operating lease expense	$ 17,953	$ 18,007	$ 36,230	$ 35,814
Variable lease expense	4,334	3,857	9,213	5,665
Short-term lease expense	405	133	801	259
Total lease expense	$ 22,692	$ 21,997	$ 46,244	$ 41,738

Leases - Lessee Maturities of O

Leases - Lessee Maturities of Operating Lease Obligations (Details) $ in Thousands	Sep. 30, 2020USD ($)
Leases [Abstract]
2021 (six months)	$ 57,976
2022	43,003
2023	28,294
2024	19,064
2025	9,035
Thereafter	58,585
Total lease payments	215,957
Less imputed interest	(50,415)
Total operating lease obligations	$ 165,542

Leases - Lessee Supplemental Ca

Leases - Lessee Supplemental Cash Flow and Non-Cash Information (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Cash paid for amounts included in the measurement of operating lease obligations	$ 36,135	$ 59,528
Operating lease right-of-use assets obtained in exchange for operating lease obligations	$ 19,257	$ 565,152

Leases - Lessor Income Statemen

Leases - Lessor Income Statement Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Leases [Abstract]
Operating lease revenues	$ 4.2	$ 5.5	$ 8.5	$ 10.9
Sublease revenue	$ 0.7	$ 1	$ 1.3	$ 2.4

Leases - Lessor Future Minimum

Leases - Lessor Future Minimum Lease Payments Receivable (Details) $ in Thousands	Sep. 30, 2020USD ($)
Leases [Abstract]
2021 (six months)	$ 6,787
2022	6,743
2023	4,202
2024	1,562
2025	690
Thereafter	1,192
Total	$ 21,176

Allowance for Current Expecte_4

Allowance for Current Expected Credit Loss (Details) - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2020
Allowance for Expected Credit Loss
Current period provision for expected credit losses	$ (259)	$ 767
Trade Accounts Receivable
Allowance for Expected Credit Loss
Accounts receivable, allowance for expected credit loss	3,399		$ 4,540
Cumulative effect adjustment	433
Current period provision for expected credit losses	(259)
Write-offs charged against the allowance	(1,315)
Notes Receivable and Other
Allowance for Expected Credit Loss
Cumulative effect adjustment	680
Write-offs charged against the allowance	(222)
Notes receivable and other, allowance for expected credit loss	$ 458

Other Matters - Third-party Loa

Other Matters - Third-party Loan Receivable and Third-Party Bankruptcy (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Sep. 30, 2020	Mar. 31, 2020
Accounts, Notes, Loans and Financing Receivable
Carrying value of long-lived assets of crude oil pipeline		$ 5,488,730	$ 5,638,330
Customer commitments intangible asset for one contract on crude oil pipeline		1,535,617	1,609,680
Goodwill of Crude Oil Logistics segment		982,239	993,587
Customer commitments
Accounts, Notes, Loans and Financing Receivable
Customer commitments intangible asset for one contract on crude oil pipeline		370,983	390,323
Crude oil logistics
Accounts, Notes, Loans and Financing Receivable
Amount owed for deficiency volumes		5,700
Amount owed for prepetition services		800
Unsecured claim		650,000
Carrying value of long-lived assets of crude oil pipeline		537,000
Customer commitments intangible asset for one contract on crude oil pipeline		188,600
Goodwill of Crude Oil Logistics segment		579,846	579,846
Third-party Loan Receivable
Accounts, Notes, Loans and Financing Receivable
Financing receivable, before allowance for credit loss	$ 10,400		$ 26,700
Proceeds from collection of receivables	16,300
Write-off of loan receivable	$ 9,400
Financing receivable, after allowance for credit loss		$ 600

Discontinued Operations (Detail

Discontinued Operations (Details) $ in Thousands, gal in Millions	3 Months Ended		6 Months Ended
	Sep. 30, 2020USD ($)gal	Sep. 30, 2019USD ($)	Sep. 30, 2020USD ($)gal	Sep. 30, 2019USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
(Gain) loss on disposal or impairment of assets, net	$ 116	$ 174,449	$ 1,181	$ 174,449
Amount received from DCC and Superior for propane sales	1,000		1,600
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
Revenues	0	3,789,232	16,198	8,555,232
Cost of sales	118	3,797,631	16,429	8,561,168
Operating expenses	72	2,547	280	5,502
General and administrative expense	0	32	0	53
Depreciation and amortization	0	295	0	749
(Gain) loss on disposal or impairment of assets, net	116	174,449	1,181	174,449
Operating loss from discontinued operations	(306)	(185,722)	(1,692)	(186,689)
Interest expense	100	(79)	0	(110)
Other income, net	0	69	0	134
Loss from discontinued operations before taxes	(206)	(185,732)	(1,692)	(186,665)
Income tax benefit (expense)	53	(10)	53	(20)
Loss From Discontinued Operations, net of Tax	$ (153)	$ (185,742)	$ (1,639)	$ (186,685)
Propane sales
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
Sale commitments (in gallons) | gal	50.8		50.8
Sale commitments (in dollars)	$ 35,400		$ 35,400
Gas Blending
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
(Gain) loss on disposal or impairment of assets, net			(1,000)
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
(Gain) loss on disposal or impairment of assets, net			(1,000)
TPSL
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations
(Gain) loss on disposal or impairment of assets, net	100		200
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]
(Gain) loss on disposal or impairment of assets, net	$ 100		$ 200

Subsequent Events (Details)

Subsequent Events (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Oct. 31, 2020	Sep. 30, 2020	Sep. 30, 2020	Sep. 30, 2019	Oct. 29, 2020	Mar. 31, 2020
Subsequent Event
Notes repurchased			$ 250,000	$ 0
Face amount		$ 3,310,556	3,310,556			$ 3,169,326
7.50% Senior Notes due 2023
Subsequent Event
Face amount		$ 572,856	$ 572,856			607,323
Fixed interest rate		7.50%	7.50%
7.50% Senior Notes due 2026
Subsequent Event
Face amount		$ 400,823	$ 400,823			$ 450,000
Fixed interest rate		7.50%	7.50%
Equipment Loan Secured by Certain Barges and Towboats | Subsequent Event
Subsequent Event
Face amount					$ 45,000
Fixed interest rate					8.60%
Repurchases | 7.50% Senior Notes due 2023
Subsequent Event
Notes repurchased		$ 19,467	$ 34,467
Repurchases | 7.50% Senior Notes due 2023 | Subsequent Event
Subsequent Event
Notes repurchased	$ 17,600
Early repayment of subordinated debt, including accrued interest	12,400
Accrued interest from early repayment of subordinated debt	600
Repurchases | 7.50% Senior Notes due 2026
Subsequent Event
Notes repurchased		$ 24,258	$ 49,177
Repurchases | 7.50% Senior Notes due 2026 | Subsequent Event
Subsequent Event
Notes repurchased	14,500
Early repayment of subordinated debt, including accrued interest	9,200
Accrued interest from early repayment of subordinated debt	$ 500