NuStar Energy (NS) 10-Q 8 Nov 22 2022 Q3 Quarterly report Financial data

DEI Document

DEI Document - shares	9 Months Ended
	Sep. 30, 2022	Oct. 31, 2022
Document Information [Line Items]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Sep. 30, 2022
Document Transition Report	false
Entity File Number	1-16417
Entity Registrant Name	NuStar Energy L.P.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	74-2956831
Entity Address, Street	19003 IH-10 West
Entity Address, City	San Antonio
Entity Address, State	TX
Entity Address, Zip Code	78257
City Area Code	210
Entity Local Phone Number	918-2000
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 Partnership Units Outstanding		110,313,685
Entity Central Index Key	0001110805
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2022
Document Fiscal Period Focus	Q3
Amendment Flag	false
Common Limited Partner [Member]
Document Information [Line Items]
Title of 12(b) Security	Common Units
Trading Symbol	NS
Security Exchange Name	NYSE
Series A Preferred Limited Partner [Member]
Document Information [Line Items]
Title of 12(b) Security	8.50% Series A Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units
Trading Symbol	NSprA
Security Exchange Name	NYSE
Series B Preferred Limited Partner [Member]
Document Information [Line Items]
Title of 12(b) Security	7.625% Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units
Trading Symbol	NSprB
Security Exchange Name	NYSE
Series C Preferred Limited Partner [Member]
Document Information [Line Items]
Title of 12(b) Security	9.00% Series C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units
Trading Symbol	NSprC
Security Exchange Name	NYSE

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 7,544	$ 5,637
Accounts receivable	138,874	135,126
Inventories	15,249	16,644
Prepaid and other current assets	27,885	27,135
Total current assets	189,552	184,542
Property, plant and equipment, at cost	5,703,532	5,728,848
Accumulated depreciation and amortization	(2,277,490)	(2,187,206)
Property, plant and equipment, net	3,426,042	3,541,642
Intangible assets, net	524,467	557,785
Goodwill	732,356	732,356
Other long-term assets, net	130,563	140,007
Total assets	5,002,980	5,156,332
Current liabilities:
Accounts payable	80,805	82,446
Current portion of finance leases	4,297	3,848
Accrued interest payable	74,410	34,139
Accrued liabilities	60,692	79,818
Taxes other than income tax	16,424	14,475
Total current liabilities	236,628	214,726
Long-term debt, less current portion of finance leases	3,068,055	3,183,555
Deferred income tax liability	2,845	11,831
Other long-term liabilities	139,369	147,956
Total liabilities	3,446,897	3,558,068
Commitments and contingencies (Note 6)
Series D preferred limited partners (23,246,650 preferred units outstanding as of September 30, 2022 and December 31, 2021) (Note 8)	630,641	616,439
Partners’ equity (Note 9):
Common limited partners (110,313,685 and 109,986,273 common units outstanding as of September 30, 2022 and December 31, 2021, respectively)	201,200	299,502
Accumulated other comprehensive loss	(32,059)	(73,978)
Total partners’ equity	925,442	981,825
Total liabilities, mezzanine equity and partners’ equity	5,002,980	5,156,332
Series A Preferred Limited Partner [Member]
Partners’ equity (Note 9):
Preferred limited partners	218,307	218,307
Series B Preferred Limited Partner [Member]
Partners’ equity (Note 9):
Preferred limited partners	371,476	371,476
Series C Preferred Limited Partner [Member]
Partners’ equity (Note 9):
Preferred limited partners	$ 166,518	$ 166,518

CONSOLIDATED BALANCE SHEETS (pa

CONSOLIDATED BALANCE SHEETS (parenthetical) - shares	Sep. 30, 2022	Dec. 31, 2021
Series D preferred units outstanding	23,246,650	23,246,650
Limited partners common units outstanding	110,313,685	109,986,273
Series A Preferred Limited Partner [Member]
Preferred units outstanding	9,060,000	9,060,000
Series B Preferred Limited Partner [Member]
Preferred units outstanding	15,400,000	15,400,000
Series C Preferred Limited Partner [Member]
Preferred units outstanding	6,900,000	6,900,000

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Goodwill impairment loss	$ 0	$ 34,060	$ 0	$ 34,060
Other impairment losses	0	154,908	46,122	154,908
General and administrative expenses (excluding depreciation and amortization expense)	27,676	27,365	82,656	79,334
Other depreciation and amortization expense	1,935	1,881	5,582	5,841
Total costs and expenses	301,361	491,530	973,896	1,066,375
Operating income (loss)	111,882	(79,185)	279,367	134,709
Income (loss) before income tax expense	61,063	(124,248)	133,472	(15,758)
Net income (loss)	59,633	(124,933)	131,144	(19,293)
Costs and expenses:
Interest expense, net	(52,294)	(53,513)	(153,053)	(162,211)
Other income, net	1,475	8,450	7,158	11,744
Income tax expense	$ 1,430	$ 685	$ 2,328	$ 3,535
Basic net income (loss) per common unit (Note 10)	$ 0.20	$ (1.48)	$ 0.18	$ (1.18)
Diluted net income (loss) per common unit (Note 10)	$ 0.20	$ (1.48)	$ 0.18	$ (1.18)
Basic weighted-average common units outstanding	110,310,921	109,532,381	110,265,359	109,522,849
Diluted weighted-average common units outstanding	110,310,921	109,532,381	110,265,359	109,522,849
Comprehensive income (loss)	$ 59,746	$ (125,459)	$ 173,063	$ (15,455)
Service [Member]
Revenues:
Total revenues	277,380	296,473	820,752	869,144
Costs and expenses:
Operating expenses (excluding depreciation and amortization expense)	91,286	100,143	272,636	287,923
Depreciation and amortization expense	63,140	66,126	188,683	203,508
Total costs associated with service revenues/Costs associated with product sales	154,426	166,269	461,319	491,431
Product [Member]
Revenues:
Total revenues	135,863	115,872	432,511	331,940
Costs and expenses:
Total costs associated with service revenues/Costs associated with product sales	117,324	107,047	378,217	300,801
Product and Service [Member]
Revenues:
Total revenues	$ 413,243	$ 412,345	$ 1,253,263	$ 1,201,084

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Cash Flows from Operating Activities:
Net income (loss)	$ 131,144	$ (19,293)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	194,265	209,349
Amortization of unit-based compensation	9,861	10,463
Amortization of debt related items	7,663	9,021
Gain from insurance recoveries	(625)	(9,372)
Goodwill impairment loss	0	34,060
Other impairment losses	46,122	154,908
Changes in current assets and current liabilities (Note 11)	32,839	15,678
(Increase) decrease in other long-term assets	(2,332)	8,183
Increase (decrease) in other long-term liabilities	525	(5,574)
Other, net	(5,684)	(324)
Net cash provided by operating activities	413,778	407,099
Cash Flows from Investing Activities:
Capital expenditures	(111,437)	(130,966)
Change in accounts payable related to capital expenditures	(9,716)	(5,464)
Proceeds from insurance recoveries	5,805	9,372
Proceeds from sale or disposition of assets	59,643	339
Net cash used in investing activities	(55,705)	(126,719)
Cash Flows from Financing Activities:
Proceeds from long-term debt borrowings	588,100	649,000
Long-term debt repayments	(706,000)	(843,400)
Distributions to preferred unitholders	(94,493)	(95,663)
Distributions to common unitholders	(132,288)	(131,436)
Other, net	(12,207)	(4,740)
Net cash used in financing activities	(356,888)	(426,239)
Effect of foreign exchange rate changes on cash	750	183
Net increase (decrease) in cash, cash equivalents and restricted cash	1,935	(145,676)
Cash, cash equivalents and restricted cash as of the beginning of the period	14,439	162,426
Cash, cash equivalents and restricted cash as of the end of the period	$ 16,374	$ 16,750

CONSOLIDATED STATEMENTS OF PART

CONSOLIDATED STATEMENTS OF PARTNERS' EQUITY AND MEZZANINE EQUITY - USD ($) $ in Thousands	Total	AOCI [Member]	Preferred Limited Partner [Member]	Common Limited Partner [Member]	Series D Preferred Limited Partner [Member]
Partners' capital - beginning balance at Dec. 31, 2020	$ 1,231,959	$ (96,656)	$ 756,301	$ 572,314
Temporary equity - beginning balance at Dec. 31, 2020	599,542
Partners' capital and temporary equity - beginning balance at Dec. 31, 2020	1,831,501
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	(19,293)	0	48,100	(114,956)
Net income (loss) excluding portion attributable to temporary equity	(66,856)
Net income, temporary equity					$ 47,563
Other comprehensive income (loss)	3,838	3,838
Cash distributions to partners			(48,100)	(131,436)
Cash distributions to partners, temporary equity					(47,563)
Unit-based compensation	8,051			8,051
Series D Preferred Unit accretion, common	(12,468)			(12,468)
Series D Preferred Unit accretion, preferred					12,468
Series D Preferred Unit accretion, total	0
Partners' capital - ending balance at Sep. 30, 2021	984,988	(92,818)	756,301	321,505
Temporary equity - ending balance at Sep. 30, 2021	612,010
Partners' capital and temporary equity - ending balance at Sep. 30, 2021	1,596,998
Partners' capital - beginning balance at Jun. 30, 2021	1,187,720	(92,292)	756,301	523,711
Temporary equity - beginning balance at Jun. 30, 2021	607,718
Partners' capital and temporary equity - beginning balance at Jun. 30, 2021	1,795,438
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	(124,933)	0	16,034	(156,822)
Net income (loss) excluding portion attributable to temporary equity	(140,788)
Net income, temporary equity					15,855
Other comprehensive income (loss)	(526)	(526)
Cash distributions to partners			(16,034)	(43,813)
Cash distributions to partners, temporary equity					(15,855)
Unit-based compensation	2,721			2,721
Series D Preferred Unit accretion, common	(4,292)			(4,292)
Series D Preferred Unit accretion, preferred					4,292
Series D Preferred Unit accretion, total	0
Partners' capital - ending balance at Sep. 30, 2021	984,988	(92,818)	756,301	321,505
Temporary equity - ending balance at Sep. 30, 2021	612,010
Partners' capital and temporary equity - ending balance at Sep. 30, 2021	1,596,998
Partners' capital - beginning balance at Dec. 31, 2021	981,825	(73,978)	756,301	299,502
Temporary equity - beginning balance at Dec. 31, 2021	616,439
Partners' capital and temporary equity - beginning balance at Dec. 31, 2021	1,598,264
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	131,144	0	47,515	36,066
Net income (loss) excluding portion attributable to temporary equity	83,581
Net income, temporary equity					47,563
Other comprehensive income (loss)	41,919	41,919
Cash distributions to partners			(47,515)	(132,288)
Cash distributions to partners, temporary equity					(47,563)
Unit-based compensation	12,133			12,133
Series D Preferred Unit accretion, common	(14,205)			(14,205)
Series D Preferred Unit accretion, preferred					14,205
Series D Preferred Unit accretion, total	0
Other	(8)	0	0	(8)
Other, temporary equity					(3)
Other, including temporary equity	(11)
Partners' capital - ending balance at Sep. 30, 2022	925,442	(32,059)	756,301	201,200
Temporary equity - ending balance at Sep. 30, 2022	630,641
Partners' capital and temporary equity - ending balance at Sep. 30, 2022	1,556,083
Partners' capital - beginning balance at Jun. 30, 2022	944,640	(32,172)	756,301	220,511
Temporary equity - beginning balance at Jun. 30, 2022	625,751
Partners' capital and temporary equity - beginning balance at Jun. 30, 2022	1,570,391
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	59,633	0	16,608	27,170
Net income (loss) excluding portion attributable to temporary equity	43,778
Net income, temporary equity					15,855
Other comprehensive income (loss)	113	113
Cash distributions to partners			(16,608)	(44,124)
Cash distributions to partners, temporary equity					(15,855)
Unit-based compensation	2,542			2,542
Series D Preferred Unit accretion, common	(4,890)			(4,890)
Series D Preferred Unit accretion, preferred					4,890
Series D Preferred Unit accretion, total	0
Other	(9)	0	0	(9)
Other, temporary equity					$ 0
Other, including temporary equity	(9)
Partners' capital - ending balance at Sep. 30, 2022	925,442	$ (32,059)	$ 756,301	$ 201,200
Temporary equity - ending balance at Sep. 30, 2022	630,641
Partners' capital and temporary equity - ending balance at Sep. 30, 2022	$ 1,556,083

CONSOLIDATED STATEMENTS OF PA_2

CONSOLIDATED STATEMENTS OF PARTNERS' EQUITY AND MEZZANINE EQUITY (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Common Limited Partner [Member]
Cash distributions paid, per unit	$ 0.40	$ 0.40	$ 1.20	$ 1.20

ORGANIZATION AND BASIS OF PRESE

ORGANIZATION AND BASIS OF PRESENTATION	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
ORGANIZATION AND BASIS OF PRESENTATION	ORGANIZATION AND BASIS OF PRESENTATION Organization and Operations NuStar Energy L.P. (NYSE: NS) is a Delaware limited partnership primarily engaged in the transportation, terminalling and storage of petroleum products and renewable fuels and the transportation of anhydrous ammonia. Unless otherwise indicated, the terms “NuStar Energy,” “NS,” “the Partnership,” “we,” “our” and “us” are used in this report to refer to NuStar Energy L.P., to one or more of our consolidated subsidiaries or to all of them taken as a whole. Our business is managed under the direction of the board of directors of NuStar GP, LLC, the general partner of our general partner, Riverwalk Logistics, L.P., both of which are indirectly wholly owned subsidiaries of ours. We conduct our operations through our subsidiaries, primarily NuStar Logistics, L.P. (NuStar Logistics) and NuStar Pipeline Operating Partnership L.P. (NuPOP). We have three business segments: pipeline, storage and fuels marketing. Recent Development On April 29, 2022, we sold the equity interests in our wholly owned subsidiaries that owned our Point Tupper terminal facility to EverWind Fuels for $60.0 million (the Point Tupper Terminal Disposition). Please refer to Note 3 for more information. Other Events Debt Amendments. On January 28, 2022, we amended and restated our $1.0 billion unsecured revolving credit agreement to extend the maturity to April 27, 2025, replace the LIBOR-based interest rate and modify other terms. Also on January 28, 2022, we amended our $100.0 million receivables financing agreement to extend the scheduled termination date to January 31, 2025, replace the LIBOR-based interest rate and modify other terms. Please refer to Note 5 for more information. Selby Terminal Fire. On October 15, 2019, our terminal facility in Selby, California experienced a fire that destroyed two storage tanks and temporarily shut down the terminal. We received insurance proceeds of $5.8 million and $28.5 million for the nine months ended September 30, 2022 and 2021, respectively. We recorded a gain from business interruption insurance of $4.0 million for the nine months ended September 30, 2021, which is included in “Operating expenses” in the condensed consolidated statements of comprehensive income (loss). We believe we have adequate insurance to offset additional costs. Basis of Presentation These unaudited condensed consolidated financial statements include the accounts of the Partnership and subsidiaries in which the Partnership has a controlling interest. Inter-partnership balances and transactions have been eliminated in consolidation. These unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and with the instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation have been included, and all disclosures are adequate. All such adjustments are of a normal recurring nature unless disclosed otherwise. Operating results for the nine months ended September 30, 2022 are not necessarily indicative of the results that may be expected for the year ending December 31, 2022. These unaudited condensed consolidated financial statements should be read in conjunction with the audited consolidated financial statements and notes thereto included in our Annual Report on Form 10-K for the year ended December 31, 2021. We have reclassified certain previously reported amounts in the consolidated financial statements and notes to conform to current-period presentation.

NEW ACCOUNTING PRONOUNCEMENT

NEW ACCOUNTING PRONOUNCEMENT	9 Months Ended
	Sep. 30, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
NEW ACCOUNTING PRONOUNCEMENT	NEW ACCOUNTING PRONOUNCEMENTIn March 2020, the Financial Accounting Standards Board (FASB) issued guidance intended to provide relief to companies impacted by reference rate reform, which is the transition away from LIBOR as its publication is expected to cease after June 30, 2023. The amended guidance provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The guidance is effective as of March 12, 2020 through December 31, 2022, and, in October 2022, the FASB affirmed a decision to extend the relief through December 31, 2024. We adopted the guidance on a prospective basis on the effective date, and it did not have an impact on our financial position, results of operations or disclosures at transition. We will continue to evaluate the impact on contracts modified on or before December 31, 2022 or the extension date prescribed by the FASB, whichever is later. Pursuant to the Adjustable Interest Rate (LIBOR) Act (the LIBOR Act) signed into law in the U.S. on March 15, 2022, the Board of Governors of the Federal Reserve System has been directed to enact rules selecting a benchmark replacement rate to automatically replace LIBOR in LIBOR-based contracts that lack adequate fallback provisions upon cessation. The proposed benchmark replacement rate has not been finalized. As of September 30, 2022, $402.5 million of our variable-rate debt uses LIBOR as a benchmark for establishing the interest rate. In addition, the distribution rates on our 8.50% Series A and 7.625% Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units are floating rates based on LIBOR, and the distribution rate on our 9.00% Series C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units converts from a fixed rate to a floating rate based on LIBOR in December 2022.

DISPOSITIONS AND IMPAIRMENTS

DISPOSITIONS AND IMPAIRMENTS	9 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
DISPOSITIONS AND IMPAIRMENTS	DISPOSITIONS AND IMPAIRMENTS Point Tupper Terminal Disposition On April 29, 2022, we sold the equity interests in our wholly owned subsidiaries that owned our Point Tupper terminal facility in Nova Scotia, Canada (the Point Tupper Terminal Operations) to EverWind Fuels for $60.0 million. The terminal facility had a storage capacity of 7.8 million barrels and was included in the storage segment. We utilized the sales proceeds to reduce debt and thereby improve our debt metrics. During the first quarter of 2022, we determined the Point Tupper Terminal Operations met the criteria to be classified as held for sale. We compared the carrying value of the Point Tupper Terminal Operations, which included $42.2 million in cumulative foreign currency translation losses accumulated since our acquisition of the Point Tupper terminal facility in 2005, to its fair value less costs to sell, and we recognized a pre-tax impairment loss of $46.1 million in the first quarter of 2022, which is presented in "Other impairment losses" on the condensed consolidated statements of comprehensive income (loss). We believe that the sales price of $60.0 million provided a reasonable indication of the fair value of the Point Tupper Terminal Operations as it represented an exit price in an orderly transaction between market participants. The sales price was a quoted price for identical assets and liabilities in a market that was not active and, thus, our fair value estimate fell within Level 2 of the fair value hierarchy. In the second quarter of 2022, we recorded a gain on the sale of $1.6 million, which is presented in “ Other income, net Eastern U.S. Terminals Disposition On August 1, 2021, we entered into an agreement (the Purchase Agreement) to sell the Eastern U.S. Terminal Operations to Sunoco LP for $250.0 million. The Eastern U.S. Terminal Operations included terminals in the following locations; Jacksonville, Florida; Andrews Air Force Base, Maryland; Baltimore, Maryland; Piney Point, Maryland; Virginia Beach, Virginia; Paulsboro, New Jersey; and Blue Island, Illinois, as well as both Linden, New Jersey terminals. The Eastern U.S. Terminal Operations had an aggregate storage capacity of 14.8 million barrels and were included in the storage segment. We determined these assets were no longer synergistic with our core assets. The Eastern U.S. Terminal Operations did not qualify for reporting as discontinued operations, as the sale did not represent a strategic shift that would have a major effect on our operations or financial results. We closed the sale on October 8, 2021 and used the proceeds from the sale to reduce debt and thereby improve our debt metrics. The Eastern U.S. Terminal Operations met the criteria to be classified as held for sale upon our entrance into the Purchase Agreement during the third quarter of 2021. At that time, we allocated goodwill of $34.1 million to the Eastern U.S. Terminal Operations based on its fair value relative to the terminals reporting unit, with which it had been fully integrated. We tested the allocated goodwill for impairment by comparing the fair value of the Eastern U.S. Terminal Operations to its carrying value. The results of our goodwill impairment test indicated that the carrying value of the Eastern U.S. Terminal Operations exceeded its fair value, and we recognized a related goodwill impairment charge of $34.1 million in the third quarter of 2021 to reduce the allocated goodwill to $0. The goodwill impairment loss is reported in “Goodwill impairment loss” on the condensed consolidated statements of comprehensive income (loss). We believe that the sales price of $250.0 million provided a reasonable indication of the fair value of the Eastern U.S. Terminal Operations as it represented an exit price in an orderly transaction between market participants. The sales price was a quoted price for identical assets and liabilities in a market that was not active and, thus, our fair value estimate fell within Level 2 of the fair value hierarchy. We compared the remaining carrying value of the Eastern U.S. Terminal Operations, after its goodwill impairment, to its fair value less costs to sell. We recognized an asset impairment loss of $95.7 million in the third quarter of 2021, which is reported in “Other impairment losses” on the condensed consolidated statements of comprehensive income (loss). The asset impairment loss included $23.9 million related to intangible assets representing customer contracts and relationships. Houston Pipeline Impairment In the third quarter of 2021, we recorded a long-lived asset impairment charge of $59.2 million within our pipeline segment related to our refined product pipeline extending from Mt. Belvieu, Texas to Corpus Christi, Texas (the Houston Pipeline). During the third quarter of 2021, we identified an indication of impairment related to the southern section of the Houston Pipeline, specifically that its physical condition would require significant investment in order to pursue commercial opportunities. Consequently, we separated the pipeline into two distinct assets: the northern and southern sections. Our estimate of the undiscounted cash flows associated with the southern section indicated it was not recoverable. Due to the factors described above, we determined the carrying value of the southern section exceeded its fair value, and reduced its carrying value to $0. We recorded the asset impairment charge in “ Other impairment losses

REVENUE FROM CONTRACTS WITH CUS

REVENUE FROM CONTRACTS WITH CUSTOMERS	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
REVENUE FROM CONTRACTS WITH CUSTOMERS	REVENUE FROM CONTRACTS WITH CUSTOMERS Contract Assets and Contract Liabilities The following table provides information about contract assets and contract liabilities from contracts with customers: 2022 2021 Contract Assets Contract Liabilities Contract Assets Contract Liabilities (Thousands of Dollars) Balances as of January 1: Current portion $ 2,336 $ (15,443) $ 2,694 $ (22,019) Noncurrent portion 504 (46,027) 932 (47,537) Total 2,840 (61,470) 3,626 (69,556) Activity: Additions 3,806 (32,895) 1,924 (29,874) Transfer to accounts receivable (4,224) — (3,907) — Transfer to revenues (83) 38,158 (375) 37,159 Total (501) 5,263 (2,358) 7,285 Balances as of September 30: Current portion 1,977 (14,327) 486 (15,194) Noncurrent portion 362 (41,880) 585 (46,056) Held for sale — — 197 (1,021) Total $ 2,339 $ (56,207) $ 1,268 $ (62,271) Remaining Performance Obligations The following table presents our estimated revenue from contracts with customers for remaining performance obligations that has not yet been recognized, representing our contractually committed revenue as of September 30, 2022 (in thousands of dollars): 2022 (remaining) $ 100,360 2023 330,534 2024 234,335 2025 147,234 2026 100,218 Thereafter 103,036 Total $ 1,015,717 Our contractually committed revenue, for purposes of the tabular presentation above, is limited to customer service contracts that have fixed pricing and fixed volume terms and conditions. Disaggregation of Revenues The following table disaggregates our revenues: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 (Thousands of Dollars) Pipeline segment: Crude oil pipelines $ 101,865 $ 86,140 $ 281,999 $ 242,762 Refined products and ammonia pipelines 107,143 110,067 316,257 315,579 Total pipeline segment revenues from contracts with customers 209,008 196,207 598,256 558,341 Storage segment: Throughput terminals 26,933 30,771 84,303 90,708 Storage terminals (excluding lessor revenues) 40,694 67,008 138,502 214,166 Total storage segment revenues from contracts with customers 67,627 97,779 222,805 304,874 Lessor revenues 10,765 10,363 32,291 31,090 Total storage segment revenues 78,392 108,142 255,096 335,964 Fuels marketing segment: Revenues from contracts with customers 125,843 107,996 399,912 306,790 Consolidation and intersegment eliminations — — (1) (11) Total revenues $ 413,243 $ 412,345 $ 1,253,263 $ 1,201,084

DEBT

DEBT	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
DEBT	DEBT Revolving Credit Agreement On January 28, 2022, NuStar Logistics amended and restated its $1.0 billion unsecured revolving credit agreement (the Revolving Credit Agreement) primarily to: (i) extend the maturity date from October 27, 2023 to April 27, 2025; (ii) increase the maximum amount of letters of credit capable of being issued from $400.0 million to $500.0 million; (iii) replace LIBOR benchmark provisions with customary secured overnight financing rate, or SOFR, benchmark provisions; (iv) remove the 0.50x increase permitted in our consolidated debt coverage ratio for certain rolling periods in which an acquisition for aggregate net consideration of at least $50.0 million occurs; and (v) add baskets and exceptions to certain negative covenants. As of September 30, 2022, we had $2.0 million of borrowings outstanding and $993.3 million available for borrowing under the Revolving Credit Agreement. Letters of credit issued under the Revolving Credit Agreement totaled $4.7 million as of September 30, 2022 and limit the amount we can borrow under the Revolving Credit Agreement. Obligations under the Revolving Credit Agreement are guaranteed by NuStar Energy and NuPOP. The Revolving Credit Agreement provides for U.S. dollar borrowings, which bear interest, at our option, based on an alternative base rate or a SOFR-based rate. The Revolving Credit Agreement and certain fees under the Receivables Financing Agreement, defined below, are the only debt arrangements with interest rates that are subject to adjustment if our debt rating is downgraded (or upgraded) by certain credit rating agencies. As of September 30, 2022, our weighted-average interest rate related to borrowings under the Revolving Credit Agreement was 7.8%. The Revolving Credit Agreement is subject to maximum consolidated debt coverage ratio and minimum consolidated interest coverage ratio requirements, which may limit the amount we can borrow to an amount that is less than the total amount available for borrowing. For a rolling period of four quarters, the consolidated debt coverage ratio (as defined in the Revolving Credit Agreement) cannot exceed 5.00-to-1.00, and the consolidated interest coverage ratio (as defined in the Revolving Credit Agreement) must not be less than 1.75-to-1.00. As of September 30, 2022, we believe that we are in compliance with the covenants in the Revolving Credit Agreement. Receivables Financing Agreement NuStar Energy and NuStar Finance LLC (NuStar Finance), a special purpose entity and wholly owned subsidiary of NuStar Energy, are parties to a $100.0 million receivables financing agreement with a third-party lender, with a scheduled termination date of January 31, 2025 (the Receivables Financing Agreement) and agreements with certain of NuStar Energy’s wholly owned subsidiaries (collectively with the Receivables Financing Agreement, the Securitization Program). NuStar Energy provides a performance guarantee in connection with the Securitization Program. Under the Securitization Program, certain of NuStar Energy’s wholly owned subsidiaries sell their accounts receivable to NuStar Finance on an ongoing basis, and NuStar Finance provides the newly acquired accounts receivable as collateral for its revolving borrowings under the Receivables Financing Agreement. NuStar Finance is a separate legal entity and the assets of NuStar Finance, including these accounts receivable, are not available to satisfy the claims of creditors of NuStar Energy, its subsidiaries selling receivables under the Securitization Program or their affiliates. The amount available for borrowing is based on the availability of eligible receivables and other customary factors and conditions. On January 28, 2022, the Receivables Financing Agreement was amended primarily to: (i) extend the scheduled termination date from September 20, 2023 to January 31, 2025; (ii) reduce the floor rate in the calculation of our borrowing rates; and (iii) replace provisions related to the LIBOR rate of interest with references to SOFR rates of interest. Borrowings under the Receivables Financing Agreement bear interest, at NuStar Finance’s option, at a base rate or a SOFR rate, each as defined in the Receivables Financing Agreement. As of September 30, 2022, the amount of borrowings outstanding under the Receivables Financing Agreement totaled $74.4 million, the interest rate related to outstanding borrowings was 4.7% and $123.4 million of our accounts receivable was included in the Securitization Program. Fair Value of Long-Term Debt The estimated fair values and carrying amounts of long-term debt, excluding finance leases, were as follows: September 30, 2022 December 31, 2021 (Thousands of Dollars) Fair value $ 2,825,140 $ 3,459,153 Carrying amount $ 3,016,436 $ 3,130,625 We have estimated the fair value of our publicly traded notes based upon quoted prices in active markets; therefore, we determined that the fair value of our publicly traded notes falls in Level 1 of the fair value hierarchy. With regard to our other debt, for which a quoted market price is not available, we have estimated the fair value using a discounted cash flow analysis using current incremental borrowing rates for similar types of borrowing arrangements and determined that the fair value falls in Level 2 of the fair value hierarchy. The carrying amount includes unamortized debt issuance costs.

COMMITMENTS AND CONTINGENCIES N

COMMITMENTS AND CONTINGENCIES Narrative	9 Months Ended
	Sep. 30, 2022
Commitments and Contingencies Disclosure [Abstract]
COMMITMENTS AND CONTINGENCIES	COMMITMENTS AND CONTINGENCIESWe have contingent liabilities resulting from various litigation, claims and commitments. We record accruals for loss contingencies when losses are considered probable and can be reasonably estimated. Legal fees associated with defending the Partnership in legal matters are expensed as incurred. We accrued $1.2 million and $0.1 million for contingent losses as of September 30, 2022 and December 31, 2021, respectively. The amount that will ultimately be paid related to such matters may differ from the recorded accruals, and the timing of such payments is uncertain. We evaluate each contingent loss at least quarterly, and more frequently as each matter progresses and develops over time, and we do not believe that the resolution of any particular claim or proceeding, or all matters in the aggregate, would have a material adverse effect on our results of operations, financial position or liquidity.

DERIVATIVES

DERIVATIVES	9 Months Ended
	Sep. 30, 2022
Derivative Instruments and Hedging Activities Disclosure [Abstract]
DERIVATIVES	DERIVATIVES We utilize various derivative instruments to manage our exposure to interest rate risk and commodity price risk. Our risk management policies and procedures are designed to monitor interest rates, futures and swap positions and over-the-counter positions, as well as physical commodity volumes, grades, locations and delivery schedules, to help ensure that our hedging activities address our market risks. Derivative financial instruments associated with commodity price risk with respect to our petroleum product inventories and related firm commitments to purchase and/or sell such inventories were not material for any periods presented. We were a party to certain interest rate swap agreements to manage our exposure to changes in interest rates, which included forward-starting interest rate swap agreements that qualified as cash flow hedges prior to their termination. We reclassify the mark-to-market adjustments related to these cash flows hedges that were recorded in “Accumulated other comprehensive loss” (AOCI) into “Interest expense, net” as the underlying forecasted interest payments occur or if the interest payments are probable not to occur. We reclassified losses on cash flow hedges to “Interest expense, net” of $0.5 million and $1.3 million for the three months ended September 30, 2022 and 2021, respectively, and losses of $1.6 million and $4.0 million for the nine months ended September 30, 2022 and 2021, respectively. As of September 30, 2022, we expect to reclassify a loss of $2.3 million to “Interest expense, net” within the next twelve months associated with unwound forward-starting interest rate swaps.

SERIES D CUMULATIVE CONVERTIBLE

SERIES D CUMULATIVE CONVERTIBLE PREFERRED UNITS	9 Months Ended
	Sep. 30, 2022
Temporary Equity Disclosure [Abstract]
SERIES D CUMULATIVE COVERTIBLE PREFERRED UNITS	SERIES D CUMULATIVE CONVERTIBLE PREFERRED UNITS Distributions on the Series D Cumulative Convertible Preferred Units (Series D Preferred Units) are payable out of any legally available funds, accrue and are cumulative from the original issuance dates, and are payable on the 15th day (or next business day) of each of March, June, September and December, to holders of record on the first business day of each payment month. The number of Series D Preferred Units issued and outstanding as of September 30, 2022 and December 31, 2021 totaled 23,246,650. The distribution rates on the Series D Preferred Units are as follows: (i) 9.75%, or $57.6 million, per annum ($0.619 per unit per distribution period) for the first two years (beginning with the September 17, 2018 distribution); (ii) 10.75%, or $63.4 million, per annum ($0.682 per unit per distribution period) for years three through five; and (iii) the greater of 13.75%, or $81.1 million, per annum ($0.872 per unit per distribution period) or the distribution per common unit thereafter. While the Series D Preferred Units are outstanding, the Partnership will be prohibited from paying distributions on any junior securities, including the common units, unless full cumulative distributions on the Series D Preferred Units (and any parity securities) have been, or contemporaneously are being, paid or set aside for payment through the most recent Series D Preferred Unit distribution payment date. Any Series D Preferred Unit distributions in excess of $0.635 per unit may be paid, in the Partnership’s sole discretion, in additional Series D Preferred Units, with the remainder paid in cash. In October 2022, our board of directors declared distributions of $0.682 per Series D Preferred Unit to be paid on December 15, 2022.

PARTNERS' EQUITY

PARTNERS' EQUITY	9 Months Ended
	Sep. 30, 2022
Partners' Capital Notes [Abstract]
PARTNERS' EQUITY	PARTNERS' EQUITY Series A, B and C Preferred Units We allocate net income to our 8.50% Series A, 7.625% Series B and 9.00% Series C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units (collectively, the Series A, B and C Preferred Units) equal to the amount of distributions earned during the period. Distributions on our Series A, B and C Preferred Units are payable out of any legally available funds, accrue and are cumulative from the original issuance dates, and are payable on the 15th day (or next business day) of each of March, June, September and December of each year to holders of record on the first business day of each payment month. Information on our Series A, B and C Preferred Units is shown below: Units Units Issued and Outstanding as of September 30, 2022 Optional Redemption Date/Date When Distribution Rate Becomes Floating Floating Annual Rate (as a Percentage of the $25.00 Liquidation Preference per Unit) Series A Preferred Units 9,060,000 December 15, 2021 Three-month LIBOR plus 6.766% Series B Preferred Units 15,400,000 June 15, 2022 Three-month LIBOR plus 5.643% Series C Preferred Units 6,900,000 December 15, 2022 Three-month LIBOR plus 6.88% Distribution information on our Series A, B and C Preferred Units is as follows: Series A Preferred Units Series B Preferred Units Series C Preferred Units Distribution Period Distribution Rate per Unit Total Distribution Distribution Rate per Unit Total Distribution Distribution Rate per Unit Total Distribution (Thousands of Dollars) (Thousands of Dollars) (Thousands of Dollars) September 15, 2022 - December 14, 2022 $ 0.64059 $ 5,804 $ 0.57040 $ 8,784 $ 0.56250 $ 3,881 June 15, 2022 - September 14, 2022 $ 0.54808 $ 4,966 $ 0.47789 $ 7,360 $ 0.56250 $ 3,881 March 15, 2022 - June 14, 2022 $ 0.47817 $ 4,332 $ 0.47657 $ 7,339 $ 0.56250 $ 3,881 December 15, 2021 - March 14, 2022 $ 0.43606 $ 3,951 $ 0.47657 $ 7,339 $ 0.56250 $ 3,881 In October 2022, our board of directors declared distributions with respect to the Series A, B and C Preferred Units to be paid on December 15, 2022. Common Limited Partners We make quarterly distributions to common unitholders of 100% of our “Available Cash,” generally defined as cash receipts less cash disbursements, including distributions to our preferred units, and cash reserves established by the general partner, in its sole discretion. These quarterly distributions are declared and paid within 45 days subsequent to each quarter-end. The common unitholders receive a distribution each quarter as determined by the board of directors, subject to limitation by the distributions in arrears, if any, on our preferred units. In October 2022, our board of directors declared distributions with respect to our common units for the quarter ended September 30, 2022. The following table summarizes information about cash distributions to our common limited partners applicable to the period in which the distributions were earned: Quarter Ended Cash Distributions Total Cash Record Date Payment Date (Thousands of Dollars) September 30, 2022 $ 0.40 $ 44,125 November 7, 2022 November 14, 2022 June 30, 2022 $ 0.40 $ 44,128 August 8, 2022 August 12, 2022 March 31, 2022 $ 0.40 $ 44,165 May 9, 2022 May 13, 2022 December 31, 2021 $ 0.40 $ 44,008 February 8, 2022 February 14, 2022 Accumulated Other Comprehensive Income (Loss) The balance of and changes in the components included in AOCI were as follows: Three Months Ended September 30, 2022 2021 Foreign Currency Translation Cash Flow Hedges Pension and Other Postretirement Benefits Total Foreign Currency Translation Cash Flow Hedges Pension and Other Postretirement Benefits Total (Thousands of Dollars) Balance as of July 1 $ (153) $ (35,436) $ 3,417 $ (32,172) $ (40,311) $ (39,467) $ (12,514) $ (92,292) Other comprehensive income (loss) before reclassification adjustments 15 — — 15 (1,684) — — (1,684) Net gain on pension costs reclassified into other income, net — — (422) (422) — — (187) (187) Net loss on cash flow hedges reclassified into interest expense, net — 525 — 525 — 1,343 — 1,343 Other — — (5) (5) — — 2 2 Other comprehensive income (loss) 15 525 (427) 113 (1,684) 1,343 (185) (526) Balance as of September 30 $ (138) $ (34,911) $ 2,990 $ (32,059) $ (41,995) $ (38,124) $ (12,699) $ (92,818) Nine Months Ended September 30, 2022 2021 Foreign Cash Flow Pension and Total Foreign Cash Flow Pension and Total (Thousands of Dollars) Balance as of January 1 $ (41,761) $ (36,486) $ 4,269 $ (73,978) $ (42,362) $ (42,150) $ (12,144) $ (96,656) Other comprehensive income before reclassification adjustments 1,977 — — 1,977 367 — — 367 Sale of Point Tupper Terminal Operations reclassified into net income (Note 3) 39,646 — — 39,646 — — — — Net gain on pension costs reclassified into other income, net — — (1,262) (1,262) — — (560) (560) Net loss on cash flow hedges reclassified into interest expense, net — 1,575 — 1,575 — 4,026 — 4,026 Other — — (17) (17) — — 5 5 Other comprehensive income (loss) 41,623 1,575 (1,279) 41,919 367 4,026 (555) 3,838 Balance as of September 30 $ (138) $ (34,911) $ 2,990 $ (32,059) $ (41,995) $ (38,124) $ (12,699) $ (92,818)

NET INCOME (LOSS) PER COMMON UN

NET INCOME (LOSS) PER COMMON UNIT	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
NET INCOME (LOSS) PER COMMON UNIT	NET INCOME (LOSS) PER COMMON UNIT Basic net income (loss) per common unit is determined pursuant to the two-class method. Under this method, all earnings are allocated to our limited partners and participating securities based on their respective rights to receive distributions earned during the period. Participating securities include restricted units awarded under our long-term incentive plans. We compute basic net income (loss) per common unit by dividing net income (loss) attributable to common units by the weighted-average number of common units outstanding during the period. We compute diluted net income (loss) per common unit by dividing net income (loss) attributable to common units by the sum of (i) the weighted average number of common units outstanding during the period and (ii) the effect of dilutive potential common units outstanding during the period. Dilutive potential common units may include the Series D Preferred Units. The Series D Preferred Units contain certain unitholder conversion and redemption features, and we use the if-converted method to calculate the dilutive effect of the conversion or redemption feature that is most advantageous to our Series D preferred unitholders. The effect of the assumed conversion or redemption of the Series D Preferred Units outstanding was antidilutive for each of the three and nine months ended September 30, 2022 and 2021; therefore, we did not include such conversion in the computation of diluted net income (loss) per common unit. The following table details the calculation of basic and diluted net income (loss) per common unit: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 (Thousands of Dollars, Except Unit and Per Unit Data) Net income (loss) $ 59,633 $ (124,933) $ 131,144 $ (19,293) Distributions to preferred limited partners (32,463) (31,889) (95,078) (95,663) Distributions to common limited partners (44,125) (43,814) (132,418) (131,462) Distribution equivalent rights to restricted units (614) (592) (1,864) (1,776) Distributions in excess of income (loss) $ (17,569) $ (201,228) $ (98,216) $ (248,194) Distributions to common limited partners $ 44,125 $ 43,814 $ 132,418 $ 131,462 Allocation of distributions in excess of income (loss) (17,569) (201,228) (98,216) (248,194) Series D Preferred Unit accretion (4,890) (4,292) (14,205) (12,468) Net income (loss) attributable to common units $ 21,666 $ (161,706) $ 19,997 $ (129,200) Basic and diluted weighted-average common units outstanding 110,310,921 109,532,381 110,265,359 109,522,849 Basic and diluted net income (loss) per common unit $ 0.20 $ (1.48) $ 0.18 $ (1.18)

SUPPLEMENTAL CASH FLOW INFORMAT

SUPPLEMENTAL CASH FLOW INFORMATION	9 Months Ended
	Sep. 30, 2022
Supplemental Cash Flow Information [Abstract]
SUPPLEMENTAL CASH FLOW INFORMATION	SUPPLEMENTAL CASH FLOW INFORMATION Changes in current assets and current liabilities were as follows: Nine Months Ended September 30, 2022 2021 (Thousands of Dollars) Decrease (increase) in current assets: Accounts receivable $ (8,093) $ (10,856) Inventories 984 (733) Other current assets (3,055) 206 Increase (decrease) in current liabilities: Accounts payable 8,336 9,135 Accrued interest payable 40,271 23,541 Accrued liabilities (7,610) (7,200) Taxes other than income tax 2,006 1,585 Changes in current assets and current liabilities $ 32,839 $ 15,678 The above changes in current assets and current liabilities differ from changes between amounts reflected in the applicable consolidated balance sheets due to: • the change in the amount accrued for capital expenditures; • the effect of foreign currency translation; • the effect of accrued compensation expense paid with fully vested common unit awards; and • current assets and current liabilities disposed of during the period. Cash flows related to interest and income taxes were as follows: Nine Months Ended September 30, 2022 2021 (Thousands of Dollars) Cash paid for interest, net of amount capitalized $ 105,238 $ 129,629 Cash paid for income taxes, net of tax refunds received $ 4,063 $ 5,217 As of September 30, 2022 and December 31, 2021, restricted cash, representing legally restricted funds that are unavailable for general use, is included in "Other long-term assets, net" on the consolidated balance sheets. “Cash, cash equivalents and restricted cash” on the consolidated statements of cash flows is included in the consolidated balance sheets as follows: September 30, 2022 December 31, 2021 (Thousands of Dollars) Cash and cash equivalents $ 7,544 $ 5,637 Other long-term assets, net 8,830 8,802 Cash, cash equivalents and restricted cash $ 16,374 $ 14,439

SEGMENT INFORMATION

SEGMENT INFORMATION	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
SEGMENT INFORMATION	SEGMENT INFORMATION Our reportable business segments consist of the pipeline, storage and fuels marketing segments. Our segments represent strategic business units that offer different services and products. We evaluate the performance of each segment based on its respective operating income (loss), before general and administrative expenses and certain non-segmental depreciation and amortization expense. General and administrative expenses are not allocated to the operating segments since those expenses relate primarily to the overall management at the entity level. Results of operations for the reportable segments were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 (Thousands of Dollars) Revenues: Pipeline $ 209,008 $ 196,207 $ 598,256 $ 558,341 Storage 78,392 108,142 255,096 335,964 Fuels marketing 125,843 107,996 399,912 306,790 Consolidation and intersegment eliminations — — (1) (11) Total revenues $ 413,243 $ 412,345 $ 1,253,263 $ 1,201,084 Operating income (loss): Pipeline $ 110,365 $ 40,201 $ 307,070 $ 216,092 Storage 22,609 (91,089) 38,841 (2,186) Fuels marketing 8,519 949 21,694 5,978 Total segment operating income (loss) 141,493 (49,939) 367,605 219,884 General and administrative expenses 27,676 27,365 82,656 79,334 Other depreciation and amortization expense 1,935 1,881 5,582 5,841 Total operating income (loss) $ 111,882 $ (79,185) $ 279,367 $ 134,709 Total assets by reportable segment were as follows: September 30, 2022 December 31, 2021 (Thousands of Dollars) Pipeline $ 3,393,563 $ 3,441,272 Storage 1,428,368 1,537,037 Fuels marketing 43,133 41,562 Total segment assets 4,865,064 5,019,871 Other partnership assets 137,916 136,461 Total consolidated assets $ 5,002,980 $ 5,156,332

ORGANIZATION AND BASIS OF PRE_2

ORGANIZATION AND BASIS OF PRESENTATION (Policies)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Consolidation	Inter-partnership balances and transactions have been eliminated in consolidation.
Basis of Presentation	These unaudited condensed consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) for interim financial information and with the instructions to the Quarterly Report on Form 10-Q and Article 10 of Regulation S-X of the Securities Exchange Act of 1934. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements. In the opinion of management, all adjustments considered necessary for a fair presentation have been included, and all disclosures are adequate. All such adjustments are of a normal recurring nature unless disclosed otherwise.
Reclassification	We have reclassified certain previously reported amounts in the consolidated financial statements and notes to conform to current-period presentation.

NEW ACCOUNTING PRONOUNCEMENT (P

NEW ACCOUNTING PRONOUNCEMENT (Policies)	9 Months Ended
	Sep. 30, 2022
Accounting Standards Update and Change in Accounting Principle [Abstract]
New Accounting Pronouncement	In March 2020, the Financial Accounting Standards Board (FASB) issued guidance intended to provide relief to companies impacted by reference rate reform, which is the transition away from LIBOR as its publication is expected to cease after June 30, 2023. The amended guidance provides optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. The guidance is effective as of March 12, 2020 through December 31, 2022, and, in October 2022, the FASB affirmed a decision to extend the relief through December 31, 2024. We adopted the guidance on a prospective basis on the effective date, and it did not have an impact on our financial position, results of operations or disclosures at transition. We will continue to evaluate the impact on contracts modified on or before December 31, 2022 or the extension date prescribed by the FASB, whichever is later. Pursuant to the Adjustable Interest Rate (LIBOR) Act (the LIBOR Act) signed into law in the U.S. on March 15, 2022, the Board of Governors of the Federal Reserve System has been directed to enact rules selecting a benchmark replacement rate to automatically replace LIBOR in LIBOR-based contracts that lack adequate fallback provisions upon cessation. The proposed benchmark replacement rate has not been finalized. As of September 30, 2022, $402.5 million of our variable-rate debt uses LIBOR as a benchmark for establishing the interest rate. In addition, the distribution rates on our 8.50% Series A and 7.625% Series B Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units are floating rates based on LIBOR, and the distribution rate on our 9.00% Series C Fixed-to-Floating Rate Cumulative Redeemable Perpetual Preferred Units converts from a fixed rate to a floating rate based on LIBOR in December 2022.

DISPOSITION AND IMPAIRMENT (Pol

DISPOSITION AND IMPAIRMENT (Policies)	9 Months Ended
	Sep. 30, 2022
Discontinued Operations and Disposal Groups [Abstract]
Fair Value Measurement	We believe that the sales price of $60.0 million provided a reasonable indication of the fair value of the Point Tupper Terminal Operations as it represented an exit price in an orderly transaction between market participants. The sales price was a quoted price for identical assets and liabilities in a market that was not active and, thus, our fair value estimate fell within Level 2 of the fair value hierarchy.

DEBT (Policies)

DEBT (Policies)	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Fair Value Measurement of Debt	We have estimated the fair value of our publicly traded notes based upon quoted prices in active markets; therefore, we determined that the fair value of our publicly traded notes falls in Level 1 of the fair value hierarchy. With regard to our other debt, for which a quoted market price is not available, we have estimated the fair value using a discounted cash flow analysis using current incremental borrowing rates for similar types of borrowing arrangements and determined that the fair value falls in Level 2 of the fair value hierarchy. The carrying amount includes unamortized debt issuance costs.

NET INCOME (LOSS) PER COMMON _2

NET INCOME (LOSS) PER COMMON UNIT (Policies)	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Basic and Diluted Net Income (Loss) per Common Unit	Basic net income (loss) per common unit is determined pursuant to the two-class method. Under this method, all earnings are allocated to our limited partners and participating securities based on their respective rights to receive distributions earned during the period. Participating securities include restricted units awarded under our long-term incentive plans. We compute basic net income (loss) per common unit by dividing net income (loss) attributable to common units by the weighted-average number of common units outstanding during the period. We compute diluted net income (loss) per common unit by dividing net income (loss) attributable to common units by the sum of (i) the weighted average number of common units outstanding during the period and (ii) the effect of dilutive potential common units outstanding during the period. Dilutive potential common units may include the Series D Preferred Units. The Series D Preferred Units contain certain unitholder conversion and redemption features, and we use the if-converted method to calculate the dilutive effect of the conversion or redemption feature that is most advantageous to our Series D preferred unitholders. The effect of the assumed conversion or redemption of the Series D Preferred Units outstanding was antidilutive for each of the three and nine months ended September 30, 2022 and 2021; therefore, we did not include such conversion in the computation of diluted net income (loss) per common unit.

SUPPLEMENTAL CASH FLOW INFORM_2

SUPPLEMENTAL CASH FLOW INFORMATION (Policies)	9 Months Ended
	Sep. 30, 2022
Supplemental Cash Flow Information [Abstract]
Restricted Cash	As of September 30, 2022 and December 31, 2021, restricted cash, representing legally restricted funds that are unavailable for general use, is included in "Other long-term assets, net" on the consolidated balance sheets.

REVENUE FROM CONTRACTS WITH C_2

REVENUE FROM CONTRACTS WITH CUSTOMERS (Tables)	9 Months Ended
	Sep. 30, 2022
Revenue from Contract with Customer [Abstract]
Contract with Customer, Asset and Liability [Table Text Block]	The following table provides information about contract assets and contract liabilities from contracts with customers: 2022 2021 Contract Assets Contract Liabilities Contract Assets Contract Liabilities (Thousands of Dollars) Balances as of January 1: Current portion $ 2,336 $ (15,443) $ 2,694 $ (22,019) Noncurrent portion 504 (46,027) 932 (47,537) Total 2,840 (61,470) 3,626 (69,556) Activity: Additions 3,806 (32,895) 1,924 (29,874) Transfer to accounts receivable (4,224) — (3,907) — Transfer to revenues (83) 38,158 (375) 37,159 Total (501) 5,263 (2,358) 7,285 Balances as of September 30: Current portion 1,977 (14,327) 486 (15,194) Noncurrent portion 362 (41,880) 585 (46,056) Held for sale — — 197 (1,021) Total $ 2,339 $ (56,207) $ 1,268 $ (62,271)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	The following table presents our estimated revenue from contracts with customers for remaining performance obligations that has not yet been recognized, representing our contractually committed revenue as of September 30, 2022 (in thousands of dollars): 2022 (remaining) $ 100,360 2023 330,534 2024 234,335 2025 147,234 2026 100,218 Thereafter 103,036 Total $ 1,015,717
Disaggregation of Revenue [Table Text Block]	The following table disaggregates our revenues: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 (Thousands of Dollars) Pipeline segment: Crude oil pipelines $ 101,865 $ 86,140 $ 281,999 $ 242,762 Refined products and ammonia pipelines 107,143 110,067 316,257 315,579 Total pipeline segment revenues from contracts with customers 209,008 196,207 598,256 558,341 Storage segment: Throughput terminals 26,933 30,771 84,303 90,708 Storage terminals (excluding lessor revenues) 40,694 67,008 138,502 214,166 Total storage segment revenues from contracts with customers 67,627 97,779 222,805 304,874 Lessor revenues 10,765 10,363 32,291 31,090 Total storage segment revenues 78,392 108,142 255,096 335,964 Fuels marketing segment: Revenues from contracts with customers 125,843 107,996 399,912 306,790 Consolidation and intersegment eliminations — — (1) (11) Total revenues $ 413,243 $ 412,345 $ 1,253,263 $ 1,201,084

DEBT (Tables)

DEBT (Tables)	9 Months Ended
	Sep. 30, 2022
Debt Disclosure [Abstract]
Fair Value and Carrying Value of Debt [Table Text Block]	The estimated fair values and carrying amounts of long-term debt, excluding finance leases, were as follows: September 30, 2022 December 31, 2021 (Thousands of Dollars) Fair value $ 2,825,140 $ 3,459,153 Carrying amount $ 3,016,436 $ 3,130,625

PARTNERS' EQUITY (Tables)

PARTNERS' EQUITY (Tables)	9 Months Ended
	Sep. 30, 2022
Distribution Made to Preferred Limited Partner [Line Items]
Schedule of Preferred Units	Information on our Series A, B and C Preferred Units is shown below: Units Units Issued and Outstanding as of September 30, 2022 Optional Redemption Date/Date When Distribution Rate Becomes Floating Floating Annual Rate (as a Percentage of the $25.00 Liquidation Preference per Unit) Series A Preferred Units 9,060,000 December 15, 2021 Three-month LIBOR plus 6.766% Series B Preferred Units 15,400,000 June 15, 2022 Three-month LIBOR plus 5.643% Series C Preferred Units 6,900,000 December 15, 2022 Three-month LIBOR plus 6.88%
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	The balance of and changes in the components included in AOCI were as follows: Three Months Ended September 30, 2022 2021 Foreign Currency Translation Cash Flow Hedges Pension and Other Postretirement Benefits Total Foreign Currency Translation Cash Flow Hedges Pension and Other Postretirement Benefits Total (Thousands of Dollars) Balance as of July 1 $ (153) $ (35,436) $ 3,417 $ (32,172) $ (40,311) $ (39,467) $ (12,514) $ (92,292) Other comprehensive income (loss) before reclassification adjustments 15 — — 15 (1,684) — — (1,684) Net gain on pension costs reclassified into other income, net — — (422) (422) — — (187) (187) Net loss on cash flow hedges reclassified into interest expense, net — 525 — 525 — 1,343 — 1,343 Other — — (5) (5) — — 2 2 Other comprehensive income (loss) 15 525 (427) 113 (1,684) 1,343 (185) (526) Balance as of September 30 $ (138) $ (34,911) $ 2,990 $ (32,059) $ (41,995) $ (38,124) $ (12,699) $ (92,818) Nine Months Ended September 30, 2022 2021 Foreign Cash Flow Pension and Total Foreign Cash Flow Pension and Total (Thousands of Dollars) Balance as of January 1 $ (41,761) $ (36,486) $ 4,269 $ (73,978) $ (42,362) $ (42,150) $ (12,144) $ (96,656) Other comprehensive income before reclassification adjustments 1,977 — — 1,977 367 — — 367 Sale of Point Tupper Terminal Operations reclassified into net income (Note 3) 39,646 — — 39,646 — — — — Net gain on pension costs reclassified into other income, net — — (1,262) (1,262) — — (560) (560) Net loss on cash flow hedges reclassified into interest expense, net — 1,575 — 1,575 — 4,026 — 4,026 Other — — (17) (17) — — 5 5 Other comprehensive income (loss) 41,623 1,575 (1,279) 41,919 367 4,026 (555) 3,838 Balance as of September 30 $ (138) $ (34,911) $ 2,990 $ (32,059) $ (41,995) $ (38,124) $ (12,699) $ (92,818)
Preferred Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Distributions Made to Limited Partner, by Distribution [Table Text Block]	Distribution information on our Series A, B and C Preferred Units is as follows: Series A Preferred Units Series B Preferred Units Series C Preferred Units Distribution Period Distribution Rate per Unit Total Distribution Distribution Rate per Unit Total Distribution Distribution Rate per Unit Total Distribution (Thousands of Dollars) (Thousands of Dollars) (Thousands of Dollars) September 15, 2022 - December 14, 2022 $ 0.64059 $ 5,804 $ 0.57040 $ 8,784 $ 0.56250 $ 3,881 June 15, 2022 - September 14, 2022 $ 0.54808 $ 4,966 $ 0.47789 $ 7,360 $ 0.56250 $ 3,881 March 15, 2022 - June 14, 2022 $ 0.47817 $ 4,332 $ 0.47657 $ 7,339 $ 0.56250 $ 3,881 December 15, 2021 - March 14, 2022 $ 0.43606 $ 3,951 $ 0.47657 $ 7,339 $ 0.56250 $ 3,881
Common Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Distributions Made to Limited Partner, by Distribution [Table Text Block]	The following table summarizes information about cash distributions to our common limited partners applicable to the period in which the distributions were earned: Quarter Ended Cash Distributions Total Cash Record Date Payment Date (Thousands of Dollars) September 30, 2022 $ 0.40 $ 44,125 November 7, 2022 November 14, 2022 June 30, 2022 $ 0.40 $ 44,128 August 8, 2022 August 12, 2022 March 31, 2022 $ 0.40 $ 44,165 May 9, 2022 May 13, 2022 December 31, 2021 $ 0.40 $ 44,008 February 8, 2022 February 14, 2022

NET INCOME (LOSS) PER COMMON _3

NET INCOME (LOSS) PER COMMON UNIT (Tables)	9 Months Ended
	Sep. 30, 2022
Earnings Per Share [Abstract]
Schedule of Net Income (Loss) Per Common Unit	The following table details the calculation of basic and diluted net income (loss) per common unit: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 (Thousands of Dollars, Except Unit and Per Unit Data) Net income (loss) $ 59,633 $ (124,933) $ 131,144 $ (19,293) Distributions to preferred limited partners (32,463) (31,889) (95,078) (95,663) Distributions to common limited partners (44,125) (43,814) (132,418) (131,462) Distribution equivalent rights to restricted units (614) (592) (1,864) (1,776) Distributions in excess of income (loss) $ (17,569) $ (201,228) $ (98,216) $ (248,194) Distributions to common limited partners $ 44,125 $ 43,814 $ 132,418 $ 131,462 Allocation of distributions in excess of income (loss) (17,569) (201,228) (98,216) (248,194) Series D Preferred Unit accretion (4,890) (4,292) (14,205) (12,468) Net income (loss) attributable to common units $ 21,666 $ (161,706) $ 19,997 $ (129,200) Basic and diluted weighted-average common units outstanding 110,310,921 109,532,381 110,265,359 109,522,849 Basic and diluted net income (loss) per common unit $ 0.20 $ (1.48) $ 0.18 $ (1.18)

SUPPLEMENTAL CASH FLOW INFORM_3

SUPPLEMENTAL CASH FLOW INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2022
Supplemental Cash Flow Information [Abstract]
Schedule of Changes in Current Assets and Liabilities [Table Text Block]	Changes in current assets and current liabilities were as follows: Nine Months Ended September 30, 2022 2021 (Thousands of Dollars) Decrease (increase) in current assets: Accounts receivable $ (8,093) $ (10,856) Inventories 984 (733) Other current assets (3,055) 206 Increase (decrease) in current liabilities: Accounts payable 8,336 9,135 Accrued interest payable 40,271 23,541 Accrued liabilities (7,610) (7,200) Taxes other than income tax 2,006 1,585 Changes in current assets and current liabilities $ 32,839 $ 15,678
Schedule of Supplemental Cash Flow Information [Table Text Block]	Cash flows related to interest and income taxes were as follows: Nine Months Ended September 30, 2022 2021 (Thousands of Dollars) Cash paid for interest, net of amount capitalized $ 105,238 $ 129,629 Cash paid for income taxes, net of tax refunds received $ 4,063 $ 5,217
Schedule of Cash and Cash Equivalents [Table Text Block]	“Cash, cash equivalents and restricted cash” on the consolidated statements of cash flows is included in the consolidated balance sheets as follows: September 30, 2022 December 31, 2021 (Thousands of Dollars) Cash and cash equivalents $ 7,544 $ 5,637 Other long-term assets, net 8,830 8,802 Cash, cash equivalents and restricted cash $ 16,374 $ 14,439

SEGMENT INFORMATION (Tables)

SEGMENT INFORMATION (Tables)	9 Months Ended
	Sep. 30, 2022
Segment Reporting [Abstract]
Schedule of Segment Reporting Information, by Segment [Table Text Block]	Results of operations for the reportable segments were as follows: Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 (Thousands of Dollars) Revenues: Pipeline $ 209,008 $ 196,207 $ 598,256 $ 558,341 Storage 78,392 108,142 255,096 335,964 Fuels marketing 125,843 107,996 399,912 306,790 Consolidation and intersegment eliminations — — (1) (11) Total revenues $ 413,243 $ 412,345 $ 1,253,263 $ 1,201,084 Operating income (loss): Pipeline $ 110,365 $ 40,201 $ 307,070 $ 216,092 Storage 22,609 (91,089) 38,841 (2,186) Fuels marketing 8,519 949 21,694 5,978 Total segment operating income (loss) 141,493 (49,939) 367,605 219,884 General and administrative expenses 27,676 27,365 82,656 79,334 Other depreciation and amortization expense 1,935 1,881 5,582 5,841 Total operating income (loss) $ 111,882 $ (79,185) $ 279,367 $ 134,709
Reconciliation of Assets from Segment to Consolidated [Table Text Block]	Total assets by reportable segment were as follows: September 30, 2022 December 31, 2021 (Thousands of Dollars) Pipeline $ 3,393,563 $ 3,441,272 Storage 1,428,368 1,537,037 Fuels marketing 43,133 41,562 Total segment assets 4,865,064 5,019,871 Other partnership assets 137,916 136,461 Total consolidated assets $ 5,002,980 $ 5,156,332

ORGANIZATION AND BASIS OF PRE_3

ORGANIZATION AND BASIS OF PRESENTATION Narrative 1 (Details)	9 Months Ended
	Sep. 30, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of business segments	3

ORGANIZATION AND BASIS OF PRE_4

ORGANIZATION AND BASIS OF PRESENTATION Narrative 2 - Point Tupper Terminal Disposition (Details) - USD ($) $ in Thousands	Apr. 29, 2022	Oct. 08, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Proceeds from sale of business	$ 60,000	$ 250,000

ORGANIZATION AND BASIS OF PRE_5

ORGANIZATION AND BASIS OF PRESENTATION Narrative 3 - Debt Amendments (Details) $ in Millions	Sep. 30, 2022 USD ($)
Revolving Credit Agreement [Member] | Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 1,000
Receivables Financing Agreement [Member] | Secured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 100

ORGANIZATION AND BASIS OF PRE_6

ORGANIZATION AND BASIS OF PRESENTATION Narrative 4 - Selby Fire (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Oct. 15, 2019
Unusual or Infrequent Item, or Both [Line Items]
Number of storage tanks destroyed in Selby fire			2
Insurance proceeds received	$ 5,800	$ 28,500
Business Interruption Insurance from Selby, California Fire [Member] | Operating Expenses [Member]
Unusual or Infrequent Item, or Both [Line Items]
Insurance proceeds received		$ 4,000

NEW ACCOUNTING PRONOUNCEMENT Na

NEW ACCOUNTING PRONOUNCEMENT Narrative (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Long-term debt	$ 3,016,436	$ 3,130,625
Series A Preferred Limited Partner [Member] | November 25, 2016 - December 14, 2021
Debt Instrument [Line Items]
Preferred units fixed distribution percentage, per annum	8.50%
Series B Preferred Limited Partner [Member] | April 28, 2017 - June 14, 2022
Debt Instrument [Line Items]
Preferred units fixed distribution percentage, per annum	7.625%
Series C Preferred Limited Partner [Member] | November 30, 2017 - December 14, 2022
Debt Instrument [Line Items]
Preferred units fixed distribution percentage, per annum	9%
London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Long-term debt	$ 402,500

DISPOSITION AND IMPAIRMENT Narr

DISPOSITION AND IMPAIRMENT Narrative 1 - Point Tupper Terminal Disposition (Details) $ in Thousands, bbl in Millions			3 Months Ended				9 Months Ended
	Apr. 29, 2022 USD ($) bbl	Oct. 08, 2021 USD ($) bbl	Sep. 30, 2022 USD ($)	Jun. 30, 2022 USD ($)	Mar. 31, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Proceeds from sale of business	$ 60,000	$ 250,000
Foreign currency translation losses					$ 42,200
Other impairment losses			$ 0			$ 154,908	$ 46,122	$ 154,908
Gain on sale				$ 1,600
Gain on sale, location on consolidated statement of comprehensive income (loss) [Extensible Enumeration]				Other income, net
Other Impairment Losses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Other impairment losses					$ 46,100
Storage Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Storage capacity sold (barrels) | bbl	7.8	14.8

DISPOSITION AND IMPAIRMENT Na_2

DISPOSITION AND IMPAIRMENT Narrative 2 - Eastern U.S. Terminals Disposition (Details) $ in Thousands, bbl in Millions			3 Months Ended		9 Months Ended
	Apr. 29, 2022 USD ($) bbl	Oct. 08, 2021 USD ($) bbl	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)	Aug. 01, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Proceeds from sale of business	$ 60,000	$ 250,000
Goodwill impairment loss			$ 0	$ 34,060	$ 0	$ 34,060
Goodwill			$ 732,356		$ 732,356		$ 732,356
Storage Segment
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Storage capacity sold (barrels) | bbl	7.8	14.8
Eastern Terminal Operations [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Goodwill				0		$ 0		$ 34,100
Goodwill impairment loss
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Goodwill impairment loss				34,100
Other Impairment Losses
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Asset impairment loss				95,700
Other Impairment Losses | Intangible Assets [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups [Line Items]
Asset impairment loss				$ 23,900

DISPOSITION AND IMPAIRMENT Na_3

DISPOSITION AND IMPAIRMENT Narrative 3 - Houston Pipeline Impairment (Details) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2021 USD ($)
Segment Information
Long-lived asset impairment charge, location on consolidated statement of comprehensive income (loss) [Extensible Enumeration]	Other impairment losses	Other impairment losses
Southern section of Houston Pipeline | Pipeline Segment
Segment Information
Property, plant and equipment, net	$ 0	$ 0
Southern section of Houston Pipeline | Pipeline Segment | Other Impairment Losses
Segment Information
Long-lived asset impairment charge	$ 59,200
Houston Pipeline [Member]
Segment Information
Number of Assets	2
Northern section of Houston Pipeline [Member] | Pipeline Segment
Segment Information
Long-lived asset impairment charge	$ 0

REVENUE FROM CONTRACTS WITH C_3

REVENUE FROM CONTRACTS WITH CUSTOMERS Table 1 - Contract Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Contract assets
Noncurrent portion	$ 362	$ 585	$ 504	$ 932
Total	2,339	1,268	2,840	3,626
Additions	3,806	1,924
Transfer to accounts receivable	(4,224)	(3,907)
Transfer to revenues, contract assets	(83)	(375)
Total activity	(501)	(2,358)
Contract liabilities
Noncurrent portion	(41,880)	(46,056)	(46,027)	(47,537)
Total	(56,207)	(62,271)	(61,470)	(69,556)
Additions	(32,895)	(29,874)
Transfer to revenues, contract liabilities	38,158	37,159
Total activity	5,263	7,285
Other current assets
Contract assets
Current portion	1,977	486	2,336	2,694
Accrued liabilities
Contract liabilities
Current portion	(14,327)	(15,194)	$ (15,443)	$ (22,019)
Assets held for sale
Contract assets
Current portion	0	197
Liabilities held for sale
Contract liabilities
Current portion	$ 0	$ (1,021)

REVENUE FROM CONTRACTS WITH C_4

REVENUE FROM CONTRACTS WITH CUSTOMERS Table 2 - Expected Timing of Satisfaction of Performance Obligations (Details) $ in Thousands	Sep. 30, 2022 USD ($)
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, amount	$ 1,015,717
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2022-10-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	3 months
Revenue, remaining performance obligation, amount	$ 100,360
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, remaining performance obligation, amount	$ 330,534
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, remaining performance obligation, amount	$ 234,335
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, remaining performance obligation, amount	$ 147,234
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period	1 year
Revenue, remaining performance obligation, amount	$ 100,218
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Revenue, remaining performance obligation, expected timing of satisfaction, period
Revenue, remaining performance obligation, amount	$ 103,036

REVENUE FROM CONTRACTS WITH C_5

REVENUE FROM CONTRACTS WITH CUSTOMERS Table 3 - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Total revenues	$ 0	$ 0	$ (1)	$ (11)
Pipeline Segment
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	209,008	196,207	598,256	558,341
Pipeline Segment | Crude Oil Pipelines [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	101,865	86,140	281,999	242,762
Pipeline Segment | Refined Products and Ammonia Pipelines [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	107,143	110,067	316,257	315,579
Storage Segment
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	67,627	97,779	222,805	304,874
Lessor revenues	10,765	10,363	32,291	31,090
Total revenues	78,392	108,142	255,096	335,964
Storage Segment | Throughput Terminal [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	26,933	30,771	84,303	90,708
Storage Segment | Storage Terminal [Member]
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	40,694	67,008	138,502	214,166
Fuels Marketing Segment
Disaggregation of Revenue [Line Items]
Revenues from contracts with customers	125,843	107,996	399,912	306,790
Operating Segments, Net of Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Total revenues	$ 413,243	$ 412,345	$ 1,253,263	$ 1,201,084

DEBT Narrative 1 - Revolving Cr

DEBT Narrative 1 - Revolving Credit Agreement (Details) $ in Thousands		12 Months Ended
	Jan. 27, 2022 USD ($)	Sep. 30, 2022 USD ($)
Debt Instrument [Line Items]
Consolidated debt coverage ratio increase permitted with minimum acquisition	0.5
Minimum [Member]
Debt Instrument [Line Items]
Minimum consolidated interest coverage ratio (as defined in the Revolving Credit Agreement)		1.75
Minimum [Member] | Pro Forma
Debt Instrument [Line Items]
Minimum consideration for an acquisition to permit debt coverage ratio increase	$ 50,000
Maximum [Member]
Debt Instrument [Line Items]
Maximum consolidated debt coverage ratio (as defined in the Revolving Credit Agreement)		5
Revolving Credit Agreement [Member] | Unsecured Debt
Debt Instrument [Line Items]
Maximum borrowing capacity		$ 1,000,000
Line of credit facility, maximum letters of credit	$ 400,000	500,000
Long-term debt		2,000
Current remaining borrowing capacity		993,300
Letters of credit outstanding, amount		$ 4,700
Line of credit facility, weighted-average interest rate		7.80%

DEBT - Narrative 2 - Receivable

DEBT - Narrative 2 - Receivables Financing Agreement (Details) - Receivables Financing Agreement [Member] - Secured Debt $ in Millions	Sep. 30, 2022 USD ($)
Debt Instrument [Line Items]
Maximum borrowing capacity	$ 100
Long-term debt	$ 74.4
Interest rate	4.70%
Debt instrument, collateral amount	$ 123.4

DEBT Table 1 - Fair Value of Lo

DEBT Table 1 - Fair Value of Long-Term Debt (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Debt Disclosure [Abstract]
Fair value, long-term debt	$ 2,825,140	$ 3,459,153
Long-term debt, excluding finance leases	$ 3,016,436	$ 3,130,625

COMMITMENTS AND CONTINGENCIES (

COMMITMENTS AND CONTINGENCIES (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Loss contingency accrual, at carrying value	$ 1.2	$ 0.1

DERIVATIVES Narrative 1 (Detail

DERIVATIVES Narrative 1 (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Derivative Instruments, Gain (Loss) [Line Items]
Loss to be reclassified during next 12 months	$ (2.3)		$ (2.3)
Interest rate swaps | Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) reclassified from AOCI into interest expense, net	$ (0.5)	$ (1.3)	$ (1.6)	$ (4)

SERIES D CUMULATIVE CONVERTIB_2

SERIES D CUMULATIVE CONVERTIBLE PREFERRED UNITS Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Dec. 31, 2021
Class of Stock [Line Items]
Series D preferred units issued		23,246,650	23,246,650
Series D preferred units outstanding		23,246,650	23,246,650
Series D Preferred Limited Partner [Member]
Class of Stock [Line Items]
Series D preferred units, required amount of per unit cash dividends to permit dividend paid in kind		$ 0.635
Preferred Stock, Distributions, Period - June 29, 2018 to June 28, 2020 [Member] | Series D Preferred Limited Partner [Member]
Class of Stock [Line Items]
Preferred units distribution percentage, per annum		9.75%
Series D preferred units, distribution rate, per annum		$ 57.6
Series D preferred units, dividend amount, per unit, per distribution period		$ 0.619
Preferred Stock, Distributions, Period - June 29, 2020 to June 28, 2023 [Member] | Series D Preferred Limited Partner [Member]
Class of Stock [Line Items]
Preferred units distribution percentage, per annum		10.75%
Series D preferred units, distribution rate, per annum		$ 63.4
Series D preferred units, dividend amount, per unit, per distribution period		$ 0.682
Preferred Stock, Distributions, Period - June 29, 2023 and thereafter [Member] | Series D Preferred Limited Partner [Member] | Minimum [Member]
Class of Stock [Line Items]
Preferred units distribution percentage, per annum		13.75%
Series D preferred units, distribution rate, per annum		$ 81.1
Series D preferred units, dividend amount, per unit, per distribution period		$ 0.872
Subsequent Event [Member] | Series D Preferred Limited Partner [Member]
Class of Stock [Line Items]
Preferred unit distribution, per unit	$ 0.682

PARTNERS' EQUITY Narrative (Det

PARTNERS' EQUITY Narrative (Details)	9 Months Ended
	Sep. 30, 2022
Series A Preferred Limited Partner [Member] | November 25, 2016 - December 14, 2021
Class of Stock [Line Items]
Preferred units fixed distribution percentage, per annum	8.50%
Series B Preferred Limited Partner [Member] | April 28, 2017 - June 14, 2022
Class of Stock [Line Items]
Preferred units fixed distribution percentage, per annum	7.625%
Series C Preferred Limited Partner [Member] | November 30, 2017 - December 14, 2022
Class of Stock [Line Items]
Preferred units fixed distribution percentage, per annum	9%

PARTNERS' EQUITY Table 1 - Cash

PARTNERS' EQUITY Table 1 - Cash Distributions - Preferred Units (Details) - $ / shares				9 Months Ended
	Nov. 30, 2017	Apr. 28, 2017	Nov. 25, 2016	Sep. 30, 2022	Dec. 31, 2021
Series A Preferred Limited Partner [Member]
Preferred Units [Line Items]
Preferred units issued			9,060,000
Preferred units outstanding				9,060,000	9,060,000
Preferred units, liquidation preference, per unit				$ 25
Series A Preferred Limited Partner [Member] | December 15, 2021 and Thereafter | London Interbank Offered Rate (LIBOR) | Three-month
Preferred Units [Line Items]
Preferred units, distribution payment rate, basis spread				6.766%
Series B Preferred Limited Partner [Member]
Preferred Units [Line Items]
Preferred units issued		15,400,000
Preferred units outstanding				15,400,000	15,400,000
Preferred units, liquidation preference, per unit				$ 25
Series B Preferred Limited Partner [Member] | June 15, 2022 and Thereafter | London Interbank Offered Rate (LIBOR) | Three-month
Preferred Units [Line Items]
Preferred units, distribution payment rate, basis spread				5.643%
Series C Preferred Limited Partner [Member]
Preferred Units [Line Items]
Preferred units issued	6,900,000
Preferred units outstanding				6,900,000	6,900,000
Preferred units, liquidation preference, per unit				$ 25
Series C Preferred Limited Partner [Member] | December 15, 2022 and Thereafter | London Interbank Offered Rate (LIBOR) | Three-month
Preferred Units [Line Items]
Preferred units, distribution payment rate, basis spread				6.88%

PARTNERS' EQUITY Table 2 - Cash

PARTNERS' EQUITY Table 2 - Cash Distributions - Preferred Units - Floating Distribution Rate (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Dec. 14, 2022	Sep. 14, 2022	Jun. 14, 2022	Mar. 14, 2022
Series A Preferred Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Cash distributions per unit, variable		$ 0.54808	$ 0.47817	$ 0.43606
Distributions to partners, variable		$ 4,966	$ 4,332	$ 3,951
Series B Preferred Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Cash distributions per unit, variable		$ 0.47789
Distributions to partners, variable		$ 7,360
Cash distributions per unit			$ 0.47657	$ 0.47657
Distributions to partners, fixed			$ 7,339	$ 7,339
Series C Preferred Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Cash distributions per unit		$ 0.56250	$ 0.56250	$ 0.56250
Distributions to partners, fixed		$ 3,881	$ 3,881	$ 3,881
Subsequent Event [Member] | Series A Preferred Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Cash distributions per unit, variable	$ 0.64059
Distributions to partners, variable	$ 5,804
Subsequent Event [Member] | Series B Preferred Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Cash distributions per unit, variable	$ 0.57040
Distributions to partners, variable	$ 8,784
Subsequent Event [Member] | Series C Preferred Limited Partner [Member]
Distribution Made to Preferred Limited Partner [Line Items]
Cash distributions per unit	$ 0.56250
Distributions to partners, fixed	$ 3,881

PARTNERS' EQUITY Narrative 2 (D

PARTNERS' EQUITY Narrative 2 (Details)	9 Months Ended
	Sep. 30, 2022
Partners' Capital Notes [Abstract]
Percent of available cash distributed	100%
Number of days within which distribution is paid to common unitholders	45

PARTNERS' EQUITY Table 3 - Cash

PARTNERS' EQUITY Table 3 - Cash Distributions Declared - Common Limited Partners (Details) - Common Limited Partner [Member] - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021
Distribution Made to Common Limited Partners [Line Items]
Cash distributions per unit	$ 0.40	$ 0.40	$ 0.40	$ 0.40
Cash distributions applicable to common unitholders	$ 44,125	$ 44,128	$ 44,165	$ 44,008
Distribution date of record	Nov. 07, 2022	Aug. 08, 2022	May 09, 2022	Feb. 08, 2022
Distribution payment date	Nov. 14, 2022	Aug. 12, 2022	May 13, 2022	Feb. 14, 2022

PARTNERS' EQUITY Table 4 - Bala

PARTNERS' EQUITY Table 4 - Balance of and Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance			$ (73,978)
Ending balance	$ (32,059)		(32,059)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(153)	$ (40,311)	(41,761)	$ (42,362)
Other comprehensive income (loss) before reclassification adjustments	15	(1,684)	1,977	367
Other	0	0	0	0
Other comprehensive income (loss)	15	(1,684)	41,623	367
Ending balance	(138)	(41,995)	(138)	(41,995)
Foreign Currency Translation | Point Tupper Terminal Disposition
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (gain) loss reclassified from AOCI			39,646	0
Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(35,436)	(39,467)	(36,486)	(42,150)
Other comprehensive income (loss) before reclassification adjustments	0	0	0	0
Other	0	0	0	0
Other comprehensive income (loss)	525	1,343	1,575	4,026
Ending balance	(34,911)	(38,124)	(34,911)	(38,124)
Pension and Other Postretirement Benefits
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	3,417	(12,514)	4,269	(12,144)
Other comprehensive income (loss) before reclassification adjustments	0	0	0	0
Other	(5)	2	(17)	5
Other comprehensive income (loss)	(427)	(185)	(1,279)	(555)
Ending balance	2,990	(12,699)	2,990	(12,699)
Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(32,172)	(92,292)	(73,978)	(96,656)
Other comprehensive income (loss) before reclassification adjustments	15	(1,684)	1,977	367
Other	(5)	2	(17)	5
Other comprehensive income (loss)	113	(526)	41,919	3,838
Ending balance	(32,059)	(92,818)	(32,059)	(92,818)
Total | Point Tupper Terminal Disposition
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (gain) loss reclassified from AOCI			39,646	0
Other income, net | Pension and Other Postretirement Benefits
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (gain) loss reclassified from AOCI	(422)	(187)	(1,262)	(560)
Other income, net | Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (gain) loss reclassified from AOCI	(422)	(187)	(1,262)	(560)
Interest expense, net | Cash Flow Hedges
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (gain) loss reclassified from AOCI	525	1,343	1,575	4,026
Interest expense, net | Total
Accumulated Other Comprehensive Income (Loss) [Line Items]
Net (gain) loss reclassified from AOCI	$ 525	$ 1,343	$ 1,575	$ 4,026

NET INCOME (LOSS) PER COMMON _4

NET INCOME (LOSS) PER COMMON UNIT Table - Net Income (Loss) per Common Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Earnings Per Share [Abstract]
Net income (loss)	$ 59,633	$ (124,933)	$ 131,144	$ (19,293)
Distributions to preferred limited partners	(32,463)	(31,889)	(95,078)	(95,663)
Distributions to common limited partners	(44,125)	(43,814)	(132,418)	(131,462)
Distribution equivalent rights to restricted units	(614)	(592)	(1,864)	(1,776)
Distributions in excess of income (loss)	(17,569)	(201,228)	(98,216)	(248,194)
Distributions to common limited partners	44,125	43,814	132,418	131,462
Allocation of distributions in excess of income (loss)	(17,569)	(201,228)	(98,216)	(248,194)
Series D Preferred Unit accretion	(4,890)	(4,292)	(14,205)	(12,468)
Net income (loss) attributable to common units	$ 21,666	$ (161,706)	$ 19,997	$ (129,200)
Basic weighted-average common units outstanding	110,310,921	109,532,381	110,265,359	109,522,849
Diluted weighted-average common units outstanding	110,310,921	109,532,381	110,265,359	109,522,849
Basic net income (loss) per common unit	$ 0.20	$ (1.48)	$ 0.18	$ (1.18)
Diluted net income (loss) per common unit	$ 0.20	$ (1.48)	$ 0.18	$ (1.18)

SUPPLEMENTAL CASH FLOW INFORM_4

SUPPLEMENTAL CASH FLOW INFORMATION - Table 1 - Changes in Current Assets and Liabilities (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Supplemental Cash Flow Information [Abstract]
Decrease (increase) in accounts receivable	$ (8,093)	$ (10,856)
Decrease (increase) in inventories	984	(733)
Decrease (increase) in other currrent assets	(3,055)	206
Increase (decrease) in accounts payable	8,336	9,135
Increase (decrease) in accrued interest payable	40,271	23,541
Increase (decrease) in accrued liabilities	(7,610)	(7,200)
Increase (decrease) in taxes other than income tax	2,006	1,585
Changes in current assets and current liabilities	$ 32,839	$ 15,678

SUPPLEMENTAL CASH FLOW INFORM_5

SUPPLEMENTAL CASH FLOW INFORMATION - Table 2 - Cash Flows Related to Interest and Income Taxes (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Supplemental Cash Flow Information [Abstract]
Cash paid for interest, net of amount capitalized	$ 105,238	$ 129,629
Cash paid for income taxes, net of tax refunds received	$ 4,063	$ 5,217

SUPPLEMENTAL CASH FLOW INFORM_6

SUPPLEMENTAL CASH FLOW INFORMATION - Table 3 - Schedule of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2020
Supplemental Cash Flow Information [Abstract]
Cash and cash equivalents	$ 7,544	$ 5,637
Restricted cash included in "Other long-term assets"	8,830	8,802
Cash, cash equivalents and restricted cash	$ 16,374	$ 14,439	$ 16,750	$ 162,426
Restricted cash, location on consolidated balance sheets [Extensible Enumeration]	Other long-term assets, net	Other long-term assets, net

SEGMENT INFORMATION Table 1 - R

SEGMENT INFORMATION Table 1 - Results of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Operating income (loss):
General and administrative expenses	$ 27,676	$ 27,365	$ 82,656	$ 79,334
Other depreciation and amortization expense	1,935	1,881	5,582	5,841
Operating income (loss)	111,882	(79,185)	279,367	134,709
Storage Segment
Revenues:
Total revenues	78,392	108,142	255,096	335,964
Operating Segments, Net of Intersegment Eliminations
Revenues:
Total revenues	413,243	412,345	1,253,263	1,201,084
Total segment
Operating income (loss):
Operating income (loss)	141,493	(49,939)	367,605	219,884
Total segment | Pipeline Segment
Revenues:
Total revenues	209,008	196,207	598,256	558,341
Operating income (loss):
Operating income (loss)	110,365	40,201	307,070	216,092
Total segment | Storage Segment
Revenues:
Total revenues	78,392	108,142	255,096	335,964
Operating income (loss):
Operating income (loss)	22,609	(91,089)	38,841	(2,186)
Total segment | Fuels Marketing Segment
Revenues:
Total revenues	125,843	107,996	399,912	306,790
Operating income (loss):
Operating income (loss)	8,519	949	21,694	5,978
Intersegment Eliminations [Member]
Revenues:
Total revenues	$ 0	$ 0	$ (1)	$ (11)

SEGMENT INFORMATION Table 2 - A

SEGMENT INFORMATION Table 2 - Assets by Reportable Segment (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Segment Information
Total assets	$ 5,002,980	$ 5,156,332
Total segment assets
Segment Information
Total assets	4,865,064	5,019,871
Total segment assets | Pipeline Segment
Segment Information
Total assets	3,393,563	3,441,272
Total segment assets | Storage Segment
Segment Information
Total assets	1,428,368	1,537,037
Total segment assets | Fuels Marketing Segment
Segment Information
Total assets	43,133	41,562
Other partnership assets
Segment Information
Total assets	$ 137,916	$ 136,461