Magellan Midstream Partners (MMP) 10-Q 29 Jul 21 2021 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2021	Jul. 28, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	1-16335
Entity Registrant Name	Magellan Midstream Partners, L.P.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	73-1599053
Entity Address, Address Line One	One Williams Center
Entity Address, Address Line Two	P.O. Box 22186
Entity Address, City or Town	Tulsa
Entity Address, State or Province	OK
Entity Address, Postal Zip Code	74121-2186
City Area Code	918
Local Phone Number	574-7000
Title of 12(b) Security	Common Units
Trading Symbol	MMP
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		221,559,630
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001126975
Current Fiscal Year End Date	--12-31

Consolidated Statements Of Inco

Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues	$ 653,643	$ 439,452	$ 1,284,717	$ 1,187,791
Costs and expenses:
Operating	149,116	139,687	276,351	288,386
Cost of product sales	171,798	43,974	342,759	275,541
Depreciation, amortization and impairment	52,258	54,984	106,903	114,787
General and administrative	56,089	41,647	102,039	77,983
Total costs and expenses	429,261	280,292	828,052	756,697
Other operating income (expense)	1,904	3,913	1,442	3,402
Earnings of non-controlled entities	40,589	33,689	79,641	77,349
Operating profit	266,875	196,762	537,748	511,845
Interest expense	56,981	69,259	113,960	125,159
Interest capitalized	(417)	(4,228)	(925)	(9,179)
Interest income	(148)	(223)	(301)	(643)
Gain on disposition of assets	(69,702)	0	(69,702)	(12,887)
Other (income) expense	14,828	1,446	15,887	2,253
Income from continuing operations before provision for income taxes	265,333	130,508	478,829	407,142
Provision for income taxes	434	589	1,223	1,345
Income from continuing operations	264,899	129,919	477,606	405,797
Income from discontinued operations	15,518	3,924	24,129	15,610
Net income	$ 280,417	$ 133,843	$ 501,735	$ 421,407
Basic and diluted income from continuing operations per common unit (in dollars per share)	$ 1.19	$ 0.57	$ 2.14	$ 1.79
Basic and diluted income from discontinued operations per common unit (in dollars per share)	0.07	0.02	0.11	0.07
Basic and diluted net income per common unit (in dollars per share)	$ 1.26	$ 0.59	$ 2.25	$ 1.86
Weighted average number of common units outstanding used for basic net income per unit calculation (in shares)	222,735	225,351	223,162	226,461
Weighted average number of common units outstanding used for diluted net income per unit calculation (in shares)	222,863	225,351	223,226	226,461
Transportation and terminals revenue
Revenues	$ 455,276	$ 399,766	$ 867,361	$ 845,277
Product sales revenue
Revenues	$ 193,073	$ 34,370	$ 406,760	$ 331,907

Consolidated Statements Of Comp

Consolidated Statements Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 280,417	$ 133,843	$ 501,735	$ 421,407
Other comprehensive income (loss):
Net gain (loss) on cash flow hedges	0	1,470	0	(10,444)
Reclassification of net loss on cash flow hedges to income	888	847	1,775	1,656
Net actuarial gain (loss)	10,801	414	10,801	(333)
Curtailment gain	0	0	0	1,703
Recognition of prior service credit amortization in income	(45)	(45)	(90)	(90)
Recognition of actuarial loss amortization in income	1,412	1,458	3,103	2,989
Recognition of settlement cost in income	1,451	0	1,451	969
Total other comprehensive income (loss)	14,507	4,144	17,040	(3,550)
Comprehensive income	$ 294,924	$ 137,987	$ 518,775	$ 417,857

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 257,970	$ 13,036
Trade accounts receivable	134,115	103,568
Other accounts receivable	39,022	37,075
Inventory	216,909	158,204
Commodity derivatives deposits	44,674	34,165
Assets held for sale	290,519	15,059
Other current assets	39,064	44,086
Total current assets	1,022,273	405,193
Property, plant and equipment	7,986,738	7,943,760
Less: accumulated depreciation	2,047,563	1,956,926
Net property, plant and equipment	5,939,175	5,986,834
Investments in non-controlled entities	1,002,989	1,213,856
Right-of-use asset, operating leases	187,231	166,078
Long-term receivables	20,883	22,755
Goodwill	50,121	50,121
Other intangibles (less accumulated amortization of $9,228 and $10,533 at December 31, 2020 and June 30, 2021, respectively)	43,620	44,925
Restricted cash	8,408	9,411
Noncurrent assets held for sale	0	277,566
Other noncurrent assets	17,962	20,243
Total assets	8,292,662	8,196,982
Current liabilities:
Accounts payable	122,711	97,988
Accrued payroll and benefits	57,639	52,055
Accrued interest payable	58,998	58,998
Accrued taxes other than income	52,360	67,710
Deferred revenue	101,502	98,635
Accrued product liabilities	128,507	75,180
Commodity derivatives contracts, net	17,925	21,621
Current portion of operating lease liability	25,735	27,533
Liabilities held for sale	9,967	8,423
Other current liabilities	66,679	50,431
Total current liabilities	642,023	558,574
Long-term debt, net	4,979,687	4,978,691
Long-term operating lease liability	164,583	137,483
Long-term pension and benefits	152,111	163,776
Long-term liabilities held for sale	0	1,508
Other noncurrent liabilities	68,469	53,144
Commitments and contingencies
Partners’ capital:
Common unitholders (223,120 units and 221,560 units outstanding at December 31, 2020 and June 30, 2021, respectively)	2,451,939	2,486,996
Accumulated other comprehensive loss	(166,150)	(183,190)
Total partners’ capital	2,285,789	2,303,806
Total liabilities and partners’ capital	$ 8,292,662	$ 8,196,982

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Finite-lived intangible assets, accumulated amortization	$ 10,533	$ 9,228
Limited partner unitholders, units outstanding (in shares)	221,559,630	223,119,811

Consolidated Statements Of Cash

Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Operating Activities:
Net income	$ 501,735	$ 421,407
Adjustments to reconcile net income to net cash provided by operating activities:
Income from discontinued operations	(24,129)	(15,610)
Depreciation, amortization and impairment expense	106,903	114,787
Gain on sale and retirement of assets	(69,702)	(12,887)
Earnings of non-controlled entities	(79,641)	(77,349)
Distributions from operations of non-controlled entities	94,451	102,699
Equity-based incentive compensation expense	10,060	4,411
Settlement gain, amortization of prior service credit and actuarial loss	4,464	2,526
Debt extinguishment costs	0	12,893
Changes in operating assets and liabilities:
Trade accounts receivable and other accounts receivable	(32,494)	34,665
Inventory	(58,705)	62,690
Accounts payable	29,255	12,260
Accrued payroll and benefits	5,584	(34,083)
Accrued interest payable	0	(8,731)
Accrued taxes other than income	(15,350)	(13,040)
Accrued product liabilities	53,327	(33,788)
Deferred revenue	2,867	(4,273)
Other current and noncurrent assets and liabilities	37,073	(26,296)
Net cash provided by operating activities of continuing operations	565,698	542,281
Net cash provided by operating activities of discontinued operations	27,257	20,972
Net cash provided by operating activities	592,955	563,253
Investing Activities:
Additions to property, plant and equipment, net	(67,405)	(280,347)
Proceeds from sale and disposition of assets	271,843	332,872
Investments in non-controlled entities	(5,616)	(59,458)
Net cash provided (used) by investing activities of continuing operations	198,822	(6,933)
Net cash used by investing activities of discontinued operations	(986)	(11,870)
Net cash provided (used) by investing activities	197,836	(18,803)
Financing Activities:
Distributions paid	(458,385)	(466,019)
Repurchases of common units	(82,324)	(201,982)
Net commercial paper borrowings	0	141,000
Borrowings under long-term notes	0	499,400
Payments on notes	0	(550,000)
Payments of Debt Issuance Costs	0	(4,255)
Payments for (Proceeds from) Hedge, Financing Activities	0	(10,444)
Payments associated with settlement of equity-based incentive compensation	(6,151)	(14,700)
Payment for Debt Extinguishment or Debt Prepayment Cost	0	(12,893)
Net cash used by financing activities	(546,860)	(619,893)
Change in cash, cash equivalents and restricted cash	243,931	(75,443)
Cash, cash equivalents and restricted cash at beginning of period	22,447	84,599
Cash, cash equivalents and restricted cash at end of period	266,378	9,156
Supplemental non-cash investing activities:
Additions to property, plant and equipment	(60,055)	(223,702)
Changes in accounts payable and other current liabilities related to capital expenditures	(7,350)	(56,645)
Additions to property, plant and equipment, net	$ (67,405)	$ (280,347)

Consolidated Statement of Partn

Consolidated Statement of Partners' Capital Statement - USD ($) $ in Thousands	Total	Common Unitholders	Accumulated Other Comprehensive Loss
Beginning balance at Dec. 31, 2019	$ 2,715,028	$ 2,877,105	$ (162,077)
Comprehensive income:
Net income	421,407	421,407
Total other comprehensive income (loss)	(3,550)		(3,550)
Comprehensive income	417,857	421,407	(3,550)
Distributions	(466,019)	(466,019)
Equity-based incentive compensation expense	4,411	4,411
Repurchases of common units	(201,982)	(201,982)
Issuance of common units in settlement of equity-based incentive plan awards	600	600
Payments associated with settlement of equity-based incentive compensation	(14,700)	(14,700)
Other	(457)	(457)
Ending balance at Jun. 30, 2020	2,454,738	2,620,365	(165,627)
Beginning balance at Mar. 31, 2020	2,543,977	2,713,748	(169,771)
Comprehensive income:
Net income	133,843	133,843
Total other comprehensive income (loss)	4,144		4,144
Comprehensive income	137,987	133,843	4,144
Distributions	(231,245)	(231,245)
Equity-based incentive compensation expense	4,256	4,256
Other	(237)	(237)
Ending balance at Jun. 30, 2020	2,454,738	2,620,365	(165,627)
Beginning balance at Dec. 31, 2020	2,303,806	2,486,996	(183,190)
Comprehensive income:
Net income	501,735	501,735
Total other comprehensive income (loss)	17,040		17,040
Comprehensive income	518,775	501,735	17,040
Distributions	(458,385)	(458,385)
Equity-based incentive compensation expense	10,060	10,060
Repurchases of common units	(82,324)	(82,324)
Issuance of common units in settlement of equity-based incentive plan awards	520	520
Payments associated with settlement of equity-based incentive compensation	(6,151)	(6,151)
Other	(512)	(512)
Ending balance at Jun. 30, 2021	2,285,789	2,451,939	(166,150)
Beginning balance at Mar. 31, 2021	2,297,032	2,477,689	(180,657)
Comprehensive income:
Net income	280,417	280,417
Total other comprehensive income (loss)	14,507		14,507
Comprehensive income	294,924	280,417	14,507
Distributions	(228,962)	(228,962)
Equity-based incentive compensation expense	5,381	5,381
Repurchases of common units	(82,324)	(82,324)
Other	(262)	(262)
Ending balance at Jun. 30, 2021	$ 2,285,789	$ 2,451,939	$ (166,150)

Organization, Description of Bu

Organization, Description of Business And Basis Of Presentation	6 Months Ended
	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization, Description of Business and Basis of Presentation	Organization, Description of Business and Basis of Presentation Organization Unless indicated otherwise, the terms “our,” “we,” “us” and similar language refer to Magellan Midstream Partners, L.P. together with its subsidiaries. Magellan Midstream Partners, L.P. is a Delaware limited partnership, and its common units are traded on the New York Stock Exchange under the ticker symbol “MMP.” Magellan GP, LLC, a wholly-owned Delaware limited liability company, serves as its general partner. Description of Business We are principally engaged in the transportation, storage and distribution of refined petroleum products and crude oil. As of June 30, 2021, our asset portfolio, excluding assets associated with discontinued operations, consisted of: • our refined products segment, comprised of our approximately 9,800-mile refined petroleum products pipeline system with 54 connected terminals and two marine storage terminals (one of which is owned through a joint venture); and • our crude oil segment, comprised of approximately 2,200 miles of crude oil pipelines, a condensate splitter and 37 million barrels of aggregate storage capacity, of which approximately 27 million barrels are used for contract storage. Approximately 1,000 miles of these pipelines, the condensate splitter and 30 million barrels of this storage capacity (including 24 million barrels used for contract storage) are wholly-owned, with the remainder owned through joint ventures. The following terms are commonly used in our industry to describe products that we transport, store, distribute or otherwise handle through our petroleum pipelines and terminals: • refined products are the output from crude oil refineries that are primarily used as fuels by consumers. Refined products include gasoline, diesel fuel, aviation fuel, kerosene and heating oil. Diesel fuel, kerosene and heating oil are also referred to as distillates; • transmix is a mixture that forms when different refined products are transported in pipelines. Transmix is fractionated and blended into usable refined products; • liquefied petroleum gases, or LPGs, are liquids produced as by-products of the crude oil refining process and in connection with natural gas production. LPGs include butane and propane; • blendstocks are products blended with refined products to change or enhance their characteristics such as increasing a gasoline’s octane or oxygen content. Blendstocks include alkylates, oxygenates and natural gasoline; • crude oil , which includes condensate, is a naturally occurring unrefined petroleum product recovered from underground that is used as feedstock by refineries, splitters and petrochemical facilities; and • renewable fuels , such as ethanol, biodiesel and renewable diesel, are fuels derived from living materials and typically blended with other refined products as required by government mandates. We use the term petroleum products to describe any, or a combination, of the above-noted products. Basis of Presentation In the opinion of management, our accompanying consolidated financial statements which are unaudited, except for the consolidated balance sheet as of December 31, 2020, which is derived from our audited financial statements, include all normal and recurring adjustments necessary to present fairly our financial position as of June 30, 2021, the results of operations for the three and six months ended June 30, 2020 and 2021 and cash flows for the six months ended June 30, 2020 and 2021. The results of operations for the six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the full year ending December 31, 2021 for several reasons. Profits from our gas liquids blending activities are realized largely during the first and fourth quarters of each year. Additionally, gasoline demand, which drives transportation volumes and revenues on our refined products pipeline system, generally trends higher during the summer driving months. Further, the volatility of commodity prices impacts the profits from our commodity activities and the volume of petroleum products we transport on our pipelines. Pursuant to the rules and regulations of the Securities and Exchange Commission, the financial statements in this report have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the U.S. for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These 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, 2020. Discontinued Operations In June 2021, we entered into an agreement to sell our independent terminals network comprised of 26 refined petroleum products terminals with approximately six million barrels of storage located primarily in the southeastern United States. The sale is expected to close upon the receipt of required regulatory approvals. The related results of operations, financial position and cash flows have been classified as discontinued operations for all periods presented. See Note 2 - Discontinued Operations and Assets Held for Sale for further details. Unless indicated otherwise, the information in the Notes to Consolidated Financial Statements relates to continuing operations. Reclassifications Certain prior period amounts have been reclassified to conform with the current period’s presentation, including amounts related to our discontinued operations. Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities that exist at the date of our consolidated financial statements, as well as their impact on the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. New Accounting Pronouncements We evaluate Accounting Standards Updates issued by the Financial Accounting Standards Board on an ongoing basis. There are no new accounting pronouncements that we anticipate will have a material impact on our financial statements.

Discontinued Operations and Ass

Discontinued Operations and Assets Held for Sale	6 Months Ended
	Jun. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations, Disclosure	Discontinued Operations and Assets Held for Sale On June 10, 2021, we announced an agreement to sell our independent terminals network comprised of 26 refined petroleum products terminals with approximately six million barrels of storage located primarily in the southeastern U.S. to Buckeye Partners, L.P. (“Buckeye”) for $435 million. The sale is expected to close upon the receipt of required regulatory approvals. The related results of operations, which were previously included in our refined products segment, have been classified as discontinued operations. Summarized Results of Discontinued Operations The following table provides the summarized results that have been reclassified from continuing operations to discontinued operations on the consolidated statements of income (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2021 2020 2021 Transportation and terminals revenue $ 12,049 $ 13,742 $ 24,933 $ 26,827 Product sales revenue 8,907 27,677 30,490 44,591 Total revenue 20,956 41,419 55,423 71,418 Costs and expenses: Operating 6,420 3,887 7,229 7,256 Cost of product sales 6,535 17,868 24,204 31,774 Depreciation, amortization and impairment 3,556 3,519 7,287 7,002 General and administrative 521 627 1,093 1,257 Total costs and expenses 17,032 25,901 39,813 47,289 Income from discontinued operations $ 3,924 $ 15,518 $ 15,610 $ 24,129 Summarized Assets and Liabilities of Discontinued Operations The following table provides the summarized assets and liabilities classified as held for sale on the consolidated balance sheets (in thousands): December 31, 2020 June 30, Assets: Trade accounts receivable $ 5,568 $ 6,311 Inventory 9,185 10,431 Net property, plant and equipment 274,857 268,922 Goodwill 2,709 2,709 Other assets 306 2,146 Total assets classified as held for sale $ 292,625 $ 290,519 Liabilities: Accounts payable $ 2,034 $ 2,342 Accrued product liabilities 3,986 5,672 Other liabilities 3,911 1,953 Total liabilities classified as held for sale $ 9,931 $ 9,967

Segment Disclosures

Segment Disclosures	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Segment Disclosures	Segment Disclosures Our reportable segments are strategic business units that offer different products and services. Our segments are managed separately because each segment requires different marketing strategies and business knowledge. Management evaluates performance based on segment operating margin, which includes revenue from affiliates and third-party customers, operating expense, cost of product sales, other operating (income) expense and earnings of non-controlled entities. We believe that investors benefit from having access to the same financial measures used by management. Operating margin, which is presented in the following tables, is an important measure used by management to evaluate the economic performance of our core operations. Operating margin is not a GAAP measure, but the components of operating margin are computed using amounts that are determined in accordance with GAAP. A reconciliation of operating margin to operating profit, which is the nearest comparable GAAP financial measure, is included in the tables below (presented in thousands). Operating profit includes depreciation, amortization and impairment expense and general and administrative (“G&A”) expense that management does not consider when evaluating the core profitability of our separate operating segments. Three Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 267,710 $ 133,637 $ (1,581) $ 399,766 Product sales revenue 25,556 8,814 — 34,370 Affiliate management fee revenue 1,513 3,803 — 5,316 Total revenue 294,779 146,254 (1,581) 439,452 Operating expense 96,985 45,917 (3,215) 139,687 Cost of product sales 39,081 4,893 — 43,974 Other operating (income) expense (138) (3,775) — (3,913) Earnings of non-controlled entities (4,592) (29,097) — (33,689) Operating margin 163,443 128,316 1,634 293,393 Depreciation, amortization and impairment expense 37,473 15,877 1,634 54,984 G&A expense 30,140 11,507 — 41,647 Operating profit $ 95,830 $ 100,932 $ — $ 196,762 Three Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 337,782 $ 118,683 $ (1,189) $ 455,276 Product sales revenue 149,682 43,391 — 193,073 Affiliate management fee revenue 1,609 3,685 — 5,294 Total revenue 489,073 165,759 (1,189) 653,643 Operating expense 108,145 43,828 (2,857) 149,116 Cost of product sales 125,108 46,690 — 171,798 Other operating (income) expense (3,167) 1,263 — (1,904) Earnings of non-controlled entities (8,197) (32,392) — (40,589) Operating margin 267,184 106,370 1,668 375,222 Depreciation, amortization and impairment expense 34,100 16,490 1,668 52,258 G&A expense 40,318 15,771 — 56,089 Operating profit $ 192,766 $ 74,109 $ — $ 266,875 Six Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 569,145 $ 279,295 $ (3,163) $ 845,277 Product sales revenue 316,959 14,948 — 331,907 Affiliate management fee revenue 3,097 7,510 — 10,607 Total revenue 889,201 301,753 (3,163) 1,187,791 Operating expense 202,058 92,689 (6,361) 288,386 Cost of product sales 254,754 20,787 — 275,541 Other operating (income) expense (2,030) (1,372) — (3,402) Earnings of non-controlled entities (18,812) (58,537) — (77,349) Operating margin 453,231 248,186 3,198 704,615 Depreciation, amortization and impairment expense 79,801 31,788 3,198 114,787 G&A expense 56,222 21,761 — 77,983 Operating profit $ 317,208 $ 194,637 $ — $ 511,845 Six Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 635,465 $ 234,897 $ (3,001) $ 867,361 Product sales revenue 334,199 72,561 — 406,760 Affiliate management fee revenue 3,159 7,437 — 10,596 Total revenue 972,823 314,895 (3,001) 1,284,717 Operating expense 199,629 83,030 (6,308) 276,351 Cost of product sales 265,944 76,815 — 342,759 Other operating (income) expense (3,406) 1,964 — (1,442) Earnings of non-controlled entities (17,368) (62,273) — (79,641) Operating margin 528,024 215,359 3,307 746,690 Depreciation, amortization and impairment expense 70,202 33,394 3,307 106,903 G&A expense 73,271 28,768 — 102,039 Operating profit $ 384,551 $ 153,197 $ — $ 537,748

Revenue

Revenue	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue	Revenue Statement of Income Disclosures The following tables provide details of our revenue disaggregated by key activities that comprise our performance obligations by operating segment (in thousands): Three Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 162,801 $ 67,217 $ — $ 230,018 Terminalling 27,057 5,742 — 32,799 Storage 48,125 35,044 (1,581) 81,588 Ancillary services 25,957 6,841 — 32,798 Lease revenue 3,770 18,793 — 22,563 Transportation and terminals revenue 267,710 133,637 (1,581) 399,766 Product sales revenue 25,556 8,814 — 34,370 Affiliate management fee revenue 1,513 3,803 — 5,316 Total revenue 294,779 146,254 (1,581) 439,452 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (1) (3,770) (18,793) — (22,563) (Gains) losses from futures contracts included in product sales revenue (2) 26,773 2,321 — 29,094 Affiliate management fee revenue (1,513) (3,803) — (5,316) Total revenue from contracts with customers under ASC 606 $ 316,269 $ 125,979 $ (1,581) $ 440,667 (1) Lease revenue is accounted for under Accounting Standards Codification (“ASC”) 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Three Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 232,036 $ 59,704 $ — $ 291,740 Terminalling 25,203 3,218 — 28,421 Storage 44,607 29,776 (1,189) 73,194 Ancillary services 31,941 7,611 — 39,552 Lease revenue 3,995 18,374 — 22,369 Transportation and terminals revenue 337,782 118,683 (1,189) 455,276 Product sales revenue 149,682 43,391 — 193,073 Affiliate management fee revenue 1,609 3,685 — 5,294 Total revenue 489,073 165,759 (1,189) 653,643 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (1) (3,995) (18,374) — (22,369) (Gains) losses from futures contracts included in product sales revenue (2) 34,252 6,175 — 40,427 Affiliate management fee revenue (1,609) (3,685) — (5,294) Total revenue from contracts with customers under ASC 606 $ 517,721 $ 149,875 $ (1,189) $ 666,407 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Six Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 341,257 $ 153,999 $ — $ 495,256 Terminalling 57,388 9,051 — 66,439 Storage 103,082 64,227 (3,163) 164,146 Ancillary services 55,486 13,917 — 69,403 Lease revenue 11,932 38,101 — 50,033 Transportation and terminals revenue 569,145 279,295 (3,163) 845,277 Product sales revenue 316,959 14,948 — 331,907 Affiliate management fee revenue 3,097 7,510 — 10,607 Total revenue 889,201 301,753 (3,163) 1,187,791 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (11,932) (38,101) — (50,033) (Gains) losses from futures contracts included in product sales revenue (2) (88,669) (401) — (89,070) Affiliate management fee revenue (3,097) (7,510) — (10,607) Total revenue from contracts with customers under ASC 606 $ 785,503 $ 255,741 $ (3,163) $ 1,038,081 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Six Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 425,463 $ 114,750 $ 540,213 Terminalling 47,755 9,335 57,090 Storage 93,622 59,038 (3,001) 149,659 Ancillary services 60,483 15,557 76,040 Lease revenue 8,142 36,217 44,359 Transportation and terminals revenue 635,465 234,897 (3,001) 867,361 Product sales revenue 334,199 72,561 — 406,760 Affiliate management fee revenue 3,159 7,437 — 10,596 Total revenue 972,823 314,895 (3,001) 1,284,717 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (8,142) (36,217) — (44,359) (Gains) losses from futures contracts included in product sales revenue (2) 81,603 11,531 — 93,134 Affiliate management fee revenue (3,159) (7,437) — (10,596) Total revenue from contracts with customers under ASC 606 $ 1,043,125 $ 282,772 $ (3,001) $ 1,322,896 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Balance Sheet Disclosures The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in thousands): December 31, 2020 June 30, 2021 Accounts receivable from contracts with customers $ 103,275 $ 132,260 Contract assets $ 12,220 $ 14,447 Contract liabilities $ 102,702 $ 104,445 For the three and six months ended June 30, 2021, respectively, we recognized $7.4 million and $73.8 million of transportation and terminals revenue that was recorded in deferred revenue as of December 31, 2020. Unfulfilled Performance Obligations The following table provides the aggregate amount of the transaction price allocated to our unfulfilled performance obligations (“UPOs”) as of June 30, 2021 by operating segment, including the range of years remaining on our contracts with customers and an estimate of revenues expected to be recognized over the next 12 months (dollars in thousands): Refined Products Crude Oil Total Balances at June 30, 2021 $ 1,929,410 $ 1,161,010 $ 3,090,420 Remaining terms 1 - 17 years 1 - 11 years Estimated revenues from UPOs to be recognized in the next 12 months $ 360,376 $ 260,713 $ 621,089

Investments in Non-Controlled E

Investments in Non-Controlled Entities	6 Months Ended
	Jun. 30, 2021
Equity Method Investments and Joint Ventures [Abstract]
Investments in Non-Controlled Entities	Investments in Non-Controlled Entities Our equity investments in non-controlled entities at June 30, 2021 were comprised of: Entity Ownership Interest BridgeTex Pipeline Company, LLC (“BridgeTex”) 30% Double Eagle Pipeline LLC (“Double Eagle”) 50% HoustonLink Pipeline Company, LLC (“HoustonLink”) 50% MVP Terminalling, LLC (“MVP”) 25% Powder Springs Logistics, LLC (“Powder Springs”) 50% Saddlehorn Pipeline Company, LLC (“Saddlehorn”) 30% Seabrook Logistics, LLC (“Seabrook”) 50% Texas Frontera, LLC (“Texas Frontera”) 50% . In April 2021, we sold nearly half of our membership interest in MVP and received $271.0 million in cash, including working capital adjustments. As a result of this sale, we recorded a gain of $69.3 million in second quarter 2021. Following the sale, we own approximately 25% of MVP and remain the operator of the facility. We serve as operator of BridgeTex, HoustonLink, MVP, Powder Springs, Saddlehorn, Texas Frontera and the pipeline activities of Seabrook. We receive fees for management services as well as reimbursement or payment to us for certain direct operational payroll and other overhead costs. The management fees we receive are reported as affiliate management fee revenue on our consolidated statements of income. Cost reimbursements we receive from these entities in connection with our operating services are included as reductions to costs and expenses on our consolidated statements of income and totaled $1.0 million and $0.7 million during the three months ended June 30, 2020 and 2021, respectively, and $2.2 million and $1.2 million during the six months ended June 30, 2020 and 2021, respectively. We recorded the following revenue and expense transactions from certain of these non-controlled entities in our consolidated statements of income (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2021 2020 2021 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 12,677 $ 12,958 $ 23,425 $ 23,698 Double Eagle, throughput revenue $ 1,421 $ 857 $ 3,021 $ 1,833 Saddlehorn, storage revenue $ 565 $ 579 $ 1,131 $ 1,159 Operating expense: Seabrook, storage lease and ancillary services $ 7,479 $ 5,549 $ 14,378 $ 10,859 Other operating income: Seabrook, gain on sale of air emission credits $ — $ 434 $ 1,410 $ 434 Our consolidated balance sheets reflected the following balances related to transactions with our non-controlled entities (in thousands): December 31, 2020 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 355 $ 27 $ 970 $ — Double Eagle $ 277 $ — $ — $ — HoustonLink $ — $ — $ 144 $ — MVP $ — $ 467 $ 2,297 $ — Powder Springs $ — $ — $ — $ 10,223 Saddlehorn $ — $ 121 $ — $ — Seabrook $ — $ — $ 7,274 $ — June 30, 2021 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 2,835 $ 16 $ 4,391 $ — Double Eagle $ 204 $ — $ — $ — HoustonLink $ — $ — $ 170 $ — MVP $ — $ 1,271 $ — $ — Powder Springs $ 7 $ — $ — $ 10,296 Saddlehorn $ — $ 5,011 $ — $ — Seabrook $ — $ 14 $ 1,857 $ — We entered into a long-term terminalling and storage contract with Seabrook for our exclusive use of dedicated tankage that provides our customers with crude oil storage capacity and dock access for crude oil imports and exports on the Texas Gulf Coast (see Note 8 – Leases for more details regarding this lease). The financial results from MVP, Powder Springs and Texas Frontera are included in our refined products segment and the financial results from BridgeTex, Double Eagle, HoustonLink, Saddlehorn and Seabrook are included in our crude oil segment, each as earnings of non-controlled entities. A summary of our investments in non-controlled entities (representing only our proportionate interest) follows (in thousands): Investments at December 31, 2020 $ 1,213,856 Additional investment 5,616 Sale of ownership interest in MVP (201,673) Earnings of non-controlled entities: Proportionate share of earnings 80,524 Amortization of excess investment and capitalized interest (883) Earnings of non-controlled entities 79,641 Less: Distributions from operations of non-controlled entities 94,451 Investments at June 30, 2021 $ 1,002,989

Inventory

Inventory	6 Months Ended
	Jun. 30, 2021
Inventory Disclosure [Abstract]
Inventory	Inventory Inventory at December 31, 2020 and June 30, 2021 was as follows (in thousands): December 31, 2020 June 30, Refined products $ 71,982 $ 93,188 Crude oil 32,431 24,887 Liquefied petroleum gases 25,040 39,723 Transmix 23,397 53,757 Additives 5,354 5,354 Total inventory $ 158,204 $ 216,909

Debt

Debt	6 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Debt	Debt Long-term debt at December 31, 2020 and June 30, 2021 was as follows (in thousands): December 31, June 30, 3.20% Notes due 2025 $ 250,000 $ 250,000 5.00% Notes due 2026 650,000 650,000 3.25% Notes due 2030 500,000 500,000 6.40% Notes due 2037 250,000 250,000 4.20% Notes due 2042 250,000 250,000 5.15% Notes due 2043 550,000 550,000 4.20% Notes due 2045 250,000 250,000 4.25% Notes due 2046 500,000 500,000 4.20% Notes due 2047 500,000 500,000 4.85% Notes due 2049 500,000 500,000 3.95% Notes due 2050 800,000 800,000 Face value of long-term debt 5,000,000 5,000,000 Unamortized debt issuance costs (1) (40,143) (39,030) Net unamortized debt premium (1) 18,834 18,717 Long-term debt, net $ 4,978,691 $ 4,979,687 (1) Debt issuance costs and note discounts and premiums are being amortized or accreted to the applicable notes over the respective lives of those notes. All of the instruments detailed in the table above are senior indebtedness. Other Debt Revolving Credit Facility. At June 30, 2021, the total borrowing capacity under our revolving credit facility maturing in May 2024 was $1.0 billion. Any borrowings outstanding under this facility are classified as long-term debt on our consolidated balance sheets. Borrowings under the facility are unsecured and bear interest at LIBOR plus a spread ranging from 0.875% to 1.500% based on our credit ratings. Additionally, an unused commitment fee is assessed at a rate from 0.075% and 0.200% depending on our credit ratings. The unused commitment fee was 0.125% at June 30, 2021. Borrowings under this facility may be used for general purposes, including capital expenditures. As of December 31, 2020 and June 30, 2021, there were no borrowings outstanding under this facility and $3.5 million was obligated for letters of credit. Amounts obligated for letters of credit are not reflected as debt on our consolidated balance sheets, but decrease our borrowing capacity under this facility. Commercial Paper Program. We have a commercial paper program under which we may issue commercial paper notes in an amount up to the available capacity under our $1.0 billion revolving credit facility. The maturities of the commercial paper notes vary, but may not exceed 397 days from the date of issuance. Because the commercial paper we can issue is limited to amounts available under our revolving credit facility, amounts outstanding under the program are classified as long-term debt. The commercial paper notes are sold under customary terms in the commercial paper market and are issued at a discount from par, or alternatively, are sold at par and bear varying interest rates on a fixed or floating basis. As of June 30, 2021, there were no borrowings outstanding under this program. The weighted-average interest rate for commercial paper borrowings based on the number of days outstanding was 0.2% for the six months ended June 30, 2021.

Leases

Leases	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Leases	Leases Operating Leases – Lessee Related-Party Operating Lease . We entered into a long-term terminalling and storage contract with Seabrook for our exclusive use of dedicated tankage that provides our customers with crude oil storage capacity and dock access for crude oil imports and exports on the Texas Gulf Coast. The following tables provide information about our third-party and Seabrook operating leases (in thousands): Three Months Ended June 30, 2020 Three Months Ended June 30, 2021 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 5,709 $ 7,479 $ 13,188 $ 6,924 $ 5,549 $ 12,473 Six Months Ended June 30, 2020 Six Months Ended June 30, 2021 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 11,699 $ 14,378 $ 26,077 $ 13,945 $ 10,859 $ 24,804 December 31, 2020 June 30, 2021 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Current lease liability $ 17,099 $ 10,434 $ 27,533 $ 17,366 $ 8,369 $ 25,735 Long-term lease liability $ 84,982 $ 52,501 $ 137,483 $ 116,033 $ 48,550 $ 164,583 Right-of-use asset $ 103,142 $ 62,936 $ 166,078 $ 130,311 $ 56,920 $ 187,231

Employee Benefit Plans

Employee Benefit Plans	6 Months Ended
	Jun. 30, 2021
Retirement Benefits [Abstract]
Employee Benefit Plans	Employee Benefit PlansWe sponsor a defined contribution plan in which we match our employees’ qualifying contributions, resulting in additional expense to us. Expenses related to the defined contribution plan, including expense related to discontinued operations, were $2.4 million and $2.3 million for the three months ended June 30, 2020 and 2021, respectively, and $6.9 million and $5.4 million for the six months ended June 30, 2020 and 2021, respectively. In addition, we sponsor two pension plans, including one for all non-union employees and one that covers union employees, and a postretirement benefit plan for certain employees. The following disclosures related to these plans include amounts related to discontinued operations. Net periodic benefit expense for the three and six months ended June 30, 2020 and 2021 were as follows (in thousands): Three Months Ended Three Months Ended June 30, 2020 June 30, 2021 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 6,735 $ 67 $ 6,963 $ 74 Interest cost 2,711 127 2,283 112 Expected return on plan assets (2,809) — (2,921) — Amortization of prior service credit (45) — (45) — Amortization of actuarial loss 1,322 136 1,241 171 Settlement cost — — 1,451 — Net periodic benefit cost $ 7,914 $ 330 $ 8,972 $ 357 Six Months Ended Six Months Ended June 30, 2020 June 30, 2021 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 13,938 $ 129 $ 14,316 $ 150 Interest cost 5,513 239 4,683 207 Expected return on plan assets (5,695) — (5,967) — Amortization of prior service credit (90) — (90) — Amortization of actuarial loss 2,734 255 2,785 318 Settlement cost 969 — 1,451 — Settlement gain on disposition of assets (1,342) — — — Net periodic benefit cost $ 16,027 $ 623 $ 17,178 $ 675 The service component of our net periodic benefit costs is presented in operating expense and G&A expense, and the non-service components are presented in other (income) expense in our consolidated statements of income. The changes in accumulated other comprehensive loss (“AOCL”) related to employee benefit plan assets and benefit obligations for the three and six months ended June 30, 2020 and 2021 were as follows (in thousands): Three Months Ended Three Months Ended June 30, 2020 June 30, 2021 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (101,447) $ (8,259) $ (116,283) $ (10,262) Net actuarial gain (loss) 1,560 (1,146) 12,366 (1,565) Recognition of prior service credit amortization in income (45) — (45) — Recognition of actuarial loss amortization in income 1,322 136 1,241 171 Recognition of settlement cost in income — — 1,451 — Ending balance $ (98,610) $ (9,269) $ (101,270) $ (11,656) Six Months Ended Six Months Ended June 30, 2020 June 30, 2021 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (104,739) $ (8,378) $ (117,782) $ (10,409) Net actuarial gain (loss) 813 (1,146) 12,366 (1,565) Curtailment gain 1,703 — — — Recognition of prior service credit amortization in income (90) — (90) — Recognition of actuarial loss amortization in income 2,734 255 2,785 318 Recognition of settlement cost in income 969 — 1,451 — Ending balance $ (98,610) $ (9,269) $ (101,270) $ (11,656) Contributions estimated to be paid into the plans in 2021 are $27.6 million and $0.8 million for the pension plans and other postretirement benefit plan, respectively.

Long-Term Incentive Plan

Long-Term Incentive Plan	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Long-Term Incentive Plan	Long-Term Incentive Plan The compensation committee of our general partner’s board of directors administers our long-term incentive plan (“LTIP”) covering certain of our employees and the independent directors of our general partner. In April 2021, our compensation committee and our limited partners approved an amendment to the LTIP increasing the number of common units available for issuance from 11.9 million to 13.7 million. The LTIP primarily consists of phantom units. The estimated units remaining available under the LTIP at June 30, 2021 totaled approximately 2.4 million. Equity-based incentive compensation expense for the three and six months ended June 30, 2020 and 2021, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2021 2020 2021 Performance-based awards $ 1,821 $ 2,654 $ (126) $ 4,870 Time-based awards 2,435 2,727 4,537 5,190 Total $ 4,256 $ 5,381 $ 4,411 $ 10,060 During 2020, LTIP expense related to performance-based awards was reduced due to the impacts of COVID-19 and the significant decline in commodity prices on our financial results. On February 5, 2021, 558,516 unit awards were granted pursuant to our LTIP. These awards included both performance-based and time-based awards and have a three-year vesting period that will end on December 31, 2023. Basic and Diluted Net Income Per Common Unit The difference between our actual common units outstanding and our weighted-average number of common units outstanding used to calculate basic net income per unit is due to the impact of: (i) the unit awards issued to non-employee directors and (ii) the weighted average effect of units actually issued or repurchased during a period. The difference between the weighted-average number of common units outstanding used for basic and diluted net income per unit calculations on our consolidated statements of income is primarily due to the dilutive effect of unit awards associated with our LTIP that have not yet vested.

Derivative Financial Instrument

Derivative Financial Instruments	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Financial Instruments	Derivative Financial Instruments Commodity Derivatives Our open futures contracts at June 30, 2021 were as follows: Type of Contract/Accounting Methodology Product Represented by the Contract and Associated Barrels Maturity Dates Futures - Economic Hedges 4.3 million barrels of refined products and crude oil Between July 2021 and November 2022 Futures - Economic Hedges 0.7 million barrels of gas liquids Between September 2021 and February 2022 Commodity Derivatives Contracts and Deposits Offsets At December 31, 2020 and June 30, 2021, we had made margin deposits of $34.2 million and $44.7 million, respectively, for our futures contracts with our counterparties, which were recorded as current assets under commodity derivatives deposits on our consolidated balance sheets. We have the right to offset the combined fair values of our open futures contracts against our margin deposits under a master netting arrangement for each counterparty; however, we have elected to present the combined fair values of our open futures contracts separately from the related margin deposits on our consolidated balance sheets. Additionally, we have the right to offset the fair values of our futures contracts together for each counterparty, which we have elected to do, and we report the combined net balances on our consolidated balance sheets. A schedule of the derivative amounts we have offset and the deposit amounts we could offset under a master netting arrangement are provided below as of December 31, 2020 and June 30, 2021 (in thousands): Description Gross Amounts of Recognized Liabilities Gross Amounts of Assets Offset in the Consolidated Balance Sheets Net Amounts of Liabilities Presented in the Consolidated Balance Sheets Margin Deposit Amounts Not Offset in the Consolidated Balance Sheets Net Asset Amount (1) As of December 31, 2020 $ (21,748) $ 1,201 $ (20,547) $ 34,165 $ 13,618 As of June 30, 2021 $ (27,429) $ 6,107 $ (21,322) $ 44,674 $ 23,352 (1) Amount represents the maximum loss we would incur if all of our counterparties failed to perform on their derivative contracts. Basis Derivative Agreement During 2019, we entered into a basis derivative agreement with a joint venture co-owner’s affiliate, and, contemporaneously, that affiliate entered into an intrastate transportation services agreement with the joint venture. Settlements under the basis derivative agreement are determined based on the basis differential of crude oil prices at different market locations and a notional volume of 30,000 barrels per day. As a result, we account for this agreement as a derivative. The agreement will expire in early 2022. We recognize the changes in fair value of this agreement based on forward price curves for crude oil in West Texas and the Houston Gulf Coast in other operating income (expense) in our consolidated statements of income. The liability for this agreement at December 31, 2020 and June 30, 2021 was $10.2 million and $5.0 million, respectively. Impact of Derivatives on Our Financial Statements Comprehensive Income The changes in derivative activity included in AOCL for the three and six months ended June 30, 2020 and 2021 were as follows (in thousands): Three Months Ended Six Months Ended June 30, June 30, Derivative Losses Included in AOCL 2020 2021 2020 2021 Beginning balance $ (60,065) $ (54,112) $ (48,960) $ (54,999) Net gain (loss) on cash flow hedges 1,470 — (10,444) — Reclassification of net loss on cash flow hedges to income 847 888 1,656 1,775 Ending balance $ (57,748) $ (53,224) $ (57,748) $ (53,224) The following is a summary of the effect on our consolidated statements of income for the three and six months ended June 30, 2020 and 2021 of derivatives that were designated as cash flow hedges (in thousands): Interest Rate Contracts Amount of Gain (Loss) Recognized in AOCL on Derivatives Location of Loss Reclassified from AOCL into Income Amount of Loss Reclassified from AOCL into Income Three Months Ended June 30, 2020 $ 1,470 Interest expense $ (847) Three Months Ended June 30, 2021 $ — Interest expense $ (888) Six Months Ended June 30, 2020 $ (10,444) Interest expense $ (1,656) Six Months Ended June 30, 2021 $ — Interest expense $ (1,775) As of June 30, 2021, the net loss estimated to be classified to interest expense over the next twelve months from AOCL is approximately $3.5 million. This amount relates to the amortization of losses on interest rate contracts over the life of the related debt instruments. The following table provides a summary of the effect on our consolidated statements of income for the three and six months ended June 30, 2020 and 2021 of derivatives that were not designated as hedging instruments (in thousands): Amount of Gain (Loss) Recognized on Derivatives Three Months Ended Six Months Ended Location of Gain (Loss) June 30, June 30, Derivative Instrument 2020 2021 2020 2021 Futures contracts Product sales revenue $ (29,094) $ (40,427) $ 89,070 $ (93,134) Futures contracts Cost of product sales (494) 6,257 (4,017) 7,607 Basis derivative agreement Other operating income (expense) 3,400 (1,277) 501 (1,927) Total $ (26,188) $ (35,447) $ 85,554 $ (87,454) The impact of the derivatives in the above table was reflected as cash from operations on our consolidated statements of cash flows. Balance Sheets The following tables provide a summary of the fair value of derivatives , which are presented on a net basis in our consolidated balance sheets, that were not designated as hedging instruments as of December 31, 2020 and June 30, 2021 (in thousands): December 31, 2020 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 127 Commodity derivatives contracts, net $ 21,748 Future contracts Other noncurrent assets 1,074 Other noncurrent liabilities — Basis derivative agreement Other current assets — Other current liabilities 8,774 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 1,468 Total $ 1,201 Total $ 31,990 June 30, 2021 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 6,107 Commodity derivatives contracts, net $ 24,032 Futures contracts Other noncurrent assets — Other noncurrent liabilities 3,397 Basis derivative agreement Other current assets — Other current liabilities 5,028 Total $ 6,107 Total $ 32,457

Fair Value

Fair Value	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Fair Value	Fair Value Fair Value Methods and Assumptions - Financial Assets and Liabilities We used the following methods and assumptions in estimating fair value of our financial assets and liabilities: • Commodity derivatives contracts . These include exchange-traded futures contracts related to petroleum products. These contracts are carried at fair value on our consolidated balance sheets and are valued based on quoted prices in active markets. See Note 11 – Derivative Financial Instruments for further disclosures regarding these contracts. • Basis derivative agreement. During 2019, we entered into a basis derivative agreement with a joint venture co-owner’s affiliate, and, contemporaneously, that affiliate entered into an intrastate transportation services agreement with the joint venture. Settlements under the basis derivative agreement are determined based on the basis differential of crude oil prices at different market locations and a notional volume of 30,000 barrels per day (see Note 11 - Derivative Financial Instruments for further disclosures regarding this agreement). The fair value of this derivative was calculated based on observable market data inputs, including published commodity pricing data and market interest rates. The key inputs in the fair value calculation include the forward price curves for crude oil, the implied forward correlation in crude oil prices between West Texas and the Houston Gulf Coast, and the implied forward volatility for crude oil futures contracts. • Long-term receivables. These primarily include payments receivable under a sales-type leasing arrangement and cost reimbursement payments receivable. These receivables were recorded at fair value on our consolidated balance sheets, using then-current market rates to estimate the present value of future cash flows. • Contractual obligations. At June 30, 2021, these primarily include a long-term contractual obligation we entered into in connection with the sale of three marine terminals to a subsidiary of Buckeye. This obligation requires us to perform certain environmental remediation work on Buckeye’s behalf at the New Haven, Connecticut terminal. This contractual obligation was recorded at fair value on our consolidated balance sheets upon initial recognition and was calculated using our best estimate of potential outcome scenarios to determine our liability for the remediation costs required in this agreement. • Debt. The fair value of our publicly traded notes was based on the prices of those notes at December 31, 2020 and June 30, 2021; however, where recent observable market trades were not available, prices were determined using adjustments to the last traded value for that debt issuance or by adjustments to the prices of similar debt instruments of peer entities that are actively traded. The carrying amount of borrowings, if any, under our revolving credit facility and our commercial paper program approximates fair value due to the frequent repricing of these obligations. Fair Value Measurements - Financial Assets and Liabilities The following tables summarize the carrying amounts, fair values and fair value measurements recorded or disclosed as of December 31, 2020 and June 30, 2021 based on the three levels established by ASC 820, Fair Value Measurements and Disclosures (in thousands): Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (20,547) $ (20,547) $ (20,547) $ — $ — Basis derivative agreement $ (10,242) $ (10,242) $ — $ (10,242) Long-term receivables $ 22,755 $ 22,755 $ — $ — $ 22,755 Contractual obligations $ (11,207) $ (11,207) $ — $ — $ (11,207) Debt $ (4,978,691) $ (5,880,850) $ — $ (5,880,850) $ — Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (21,322) $ (21,322) $ (21,322) $ — $ — Basis derivative agreement $ (5,028) $ (5,028) $ — $ (5,028) $ — Long-term receivables $ 20,883 $ 20,883 $ — $ — $ 20,883 Contractual obligations $ (11,142) $ (11,142) $ — $ — $ (11,142) Debt $ (4,979,687) $ (5,688,517) $ — $ (5,688,517) $ —

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Butane Blending Patent Infringement Proceeding - On October 4, 2017, Sunoco Partners Marketing & Terminals L.P. (“Sunoco”) brought an action for patent infringement in the U.S. District Court for the District of Delaware alleging Magellan Midstream Partners, L.P. (“Magellan”) and Powder Springs Logistics, LLC (“Powder Springs”) have infringed patents related to butane blending at the Powder Springs facility located in Powder Springs, Georgia. Sunoco subsequently submitted pleadings alleging that Magellan is also infringing various patents related to butane blending at nine Magellan facilities, in addition to Powder Springs. Sunoco is seeking monetary damages, attorneys’ fees and a permanent injunction enjoining Magellan and Powder Springs from infringing the subject patents. We deny and are vigorously defending against all claims asserted by Sunoco. The amounts we have accrued in relation to the claims are immaterial, and although it is not possible to predict the ultimate outcome, we believe the ultimate resolution of this matter will not have a material adverse impact on our results of operations, financial position or cash flows. Environmental Liabilities Liabilities recognized for estimated environmental costs were $14.3 million and $11.5 million at December 31, 2020 and June 30, 2021, respectively. We have classified environmental liabilities as other current or noncurrent based on management’s estimates regarding the timing of actual payments. Environmental expenses recognized as a result of changes in our environmental liabilities are included in operating expense on our consolidated statements of income. Environmental expenses were $0.8 million and $0.9 million for the three months ended June 30, 2020 and 2021, respectively, and $1.2 million and $2.0 million for the six months ended June 30, 2020 and 2021, respectively. Other In first quarter 2020, we entered into a long-term contractual obligation in connection with the sale of three marine terminals to Buckeye. This obligation requires us to perform certain environmental remediation work on Buckeye’s behalf at the New Haven, Connecticut terminal. At December 31, 2020 and June 30, 2021, our consolidated balance sheets reflect a current liability of $0.6 million and a noncurrent liability of $10.2 million to reflect the fair value of this obligation. We have entered into an agreement to guarantee our 50% pro rata share, up to $25.0 million, of contractual obligations under the Powder Springs’ credit facility. As of June 30, 2021, our consolidated balance sheets reflected a $0.4 million other current liability and a corresponding increase in our investment in non-controlled entities on our consolidated balance sheets to reflect the fair value of this guarantee.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party TransactionsStacy Methvin is an independent member of our general partner’s board of directors and also serves as a director of one of our customers. We received tariff, terminalling and other ancillary revenue from this customer of $7.3 million and $17.3 million for the three months ended June 30, 2020 and 2021, respectively, and $15.7 million and $28.4 million for the six months ended June 30, 2020 and 2021, respectively. We occasionally have transmix settlements with this customer as well. We recorded receivables of $3.9 million and $5.2 million from this customer at December 31, 2020 and June 30, 2021, respectively. See Note 5 – Investments in Non-Controlled Entities and Note 8 – Leases

Partners' Capital and Distribut

Partners' Capital and Distributions	6 Months Ended
	Jun. 30, 2021
Partners' Capital Notes [Abstract]
Partners' Capital and Distributions	Partners’ Capital and Distributions Partners ’ Capital Our general partner’s board of directors authorized the repurchase of up to $750 million of our common units through 2022. The timing, price and actual number of common units repurchased will depend on a number of factors including our expected expansion capital spending needs, excess cash available, balance sheet metrics, legal and regulatory requirements, market conditions and the trading price of our common units. The repurchase program does not obligate us to acquire any particular amount of common units, and the repurchase program may be suspended or discontinued at any time. The following table details the changes in the number of our common units outstanding from December 31, 2020 through June 30, 2021: Common units outstanding on December 31, 2020 223,119,811 Units repurchased during 2021 (1,723,188) January 2021–Settlement of employee LTIP awards 150,435 During 2021–Other (1) 12,572 Common units outstanding on June 30, 2021 221,559,630 (1) Common units issued to settle the equity-based retainers paid to independent directors of our general partner. Distributions Distributions we paid during 2020 and 2021 were as follows (in thousands, except per unit amounts): Payment Date Per Unit Total Distribution 02/14/2020 $ 1.0275 $ 234,774 05/15/2020 1.0275 231,245 Through 06/30/2020 2.0550 466,019 08/14/2020 1.0275 231,245 11/13/2020 1.0275 229,853 Total 4.1100 927,117 02/12/2021 $ 1.0275 229,423 05/14/2021 1.0275 228,962 Through 06/30/2021 2.0550 458,385 08/13/2021 (1) 1.0275 227,653 Total $ 3.0825 $ 686,038 (1) Our general partner’s board of directors declared this distribution in July 2021 to be paid on August 13, 2021 to unitholders of record at the close of business on August 6, 2021. The estimated total distribution is based upon the number of common units currently outstanding.

Subsequent Events

Subsequent Events	6 Months Ended
	Jun. 30, 2021
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Recognizable events No recognizable events occurred subsequent to June 30, 2021. Non-recognizable events Distribution. In July 2021, our general partner’s board of directors declared a quarterly distribution of $1.0275 per unit for the period of April 1, 2021 through June 30, 2021. This quarterly distribution will be paid on August 13, 2021 to unitholders of record on August 6, 2021.

Organization, Description of _2

Organization, Description of Business And Basis Of Presentation (Policies)	6 Months Ended
	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation In the opinion of management, our accompanying consolidated financial statements which are unaudited, except for the consolidated balance sheet as of December 31, 2020, which is derived from our audited financial statements, include all normal and recurring adjustments necessary to present fairly our financial position as of June 30, 2021, the results of operations for the three and six months ended June 30, 2020 and 2021 and cash flows for the six months ended June 30, 2020 and 2021. The results of operations for the six months ended June 30, 2021 are not necessarily indicative of the results to be expected for the full year ending December 31, 2021 for several reasons. Profits from our gas liquids blending activities are realized largely during the first and fourth quarters of each year. Additionally, gasoline demand, which drives transportation volumes and revenues on our refined products pipeline system, generally trends higher during the summer driving months. Further, the volatility of commodity prices impacts the profits from our commodity activities and the volume of petroleum products we transport on our pipelines. Pursuant to the rules and regulations of the Securities and Exchange Commission, the financial statements in this report have been prepared in accordance with generally accepted accounting principles (“GAAP”) in the U.S. for interim financial information. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. These 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, 2020. Discontinued Operations In June 2021, we entered into an agreement to sell our independent terminals network comprised of 26 refined petroleum products terminals with approximately six million barrels of storage located primarily in the southeastern United States. The sale is expected to close upon the receipt of required regulatory approvals. The related results of operations, financial position and cash flows have been classified as discontinued operations for all periods presented. See Note 2 - Discontinued Operations and Assets Held for Sale for further details. Unless indicated otherwise, the information in the Notes to Consolidated Financial Statements relates to continuing operations.
Use of Estimates	Use of Estimates The preparation of our consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities that exist at the date of our consolidated financial statements, as well as their impact on the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates.
New Accounting Pronouncements	New Accounting Pronouncements We evaluate Accounting Standards Updates issued by the Financial Accounting Standards Board on an ongoing basis. There are no new accounting pronouncements that we anticipate will have a material impact on our financial statements.

Discontinued Operations and A_2

Discontinued Operations and Assets Held for Sale (Tables)	6 Months Ended
	Jun. 30, 2021
Discontinued Operations and Disposal Groups [Abstract]
Disposal Groups, Including Discontinued Operations	Summarized Results of Discontinued Operations The following table provides the summarized results that have been reclassified from continuing operations to discontinued operations on the consolidated statements of income (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2021 2020 2021 Transportation and terminals revenue $ 12,049 $ 13,742 $ 24,933 $ 26,827 Product sales revenue 8,907 27,677 30,490 44,591 Total revenue 20,956 41,419 55,423 71,418 Costs and expenses: Operating 6,420 3,887 7,229 7,256 Cost of product sales 6,535 17,868 24,204 31,774 Depreciation, amortization and impairment 3,556 3,519 7,287 7,002 General and administrative 521 627 1,093 1,257 Total costs and expenses 17,032 25,901 39,813 47,289 Income from discontinued operations $ 3,924 $ 15,518 $ 15,610 $ 24,129 Summarized Assets and Liabilities of Discontinued Operations The following table provides the summarized assets and liabilities classified as held for sale on the consolidated balance sheets (in thousands): December 31, 2020 June 30, Assets: Trade accounts receivable $ 5,568 $ 6,311 Inventory 9,185 10,431 Net property, plant and equipment 274,857 268,922 Goodwill 2,709 2,709 Other assets 306 2,146 Total assets classified as held for sale $ 292,625 $ 290,519 Liabilities: Accounts payable $ 2,034 $ 2,342 Accrued product liabilities 3,986 5,672 Other liabilities 3,911 1,953 Total liabilities classified as held for sale $ 9,931 $ 9,967

Segment Disclosures (Tables)

Segment Disclosures (Tables)	6 Months Ended
	Jun. 30, 2021
Segment Reporting [Abstract]
Schedule of Business Segment Reporting Information	Three Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 267,710 $ 133,637 $ (1,581) $ 399,766 Product sales revenue 25,556 8,814 — 34,370 Affiliate management fee revenue 1,513 3,803 — 5,316 Total revenue 294,779 146,254 (1,581) 439,452 Operating expense 96,985 45,917 (3,215) 139,687 Cost of product sales 39,081 4,893 — 43,974 Other operating (income) expense (138) (3,775) — (3,913) Earnings of non-controlled entities (4,592) (29,097) — (33,689) Operating margin 163,443 128,316 1,634 293,393 Depreciation, amortization and impairment expense 37,473 15,877 1,634 54,984 G&A expense 30,140 11,507 — 41,647 Operating profit $ 95,830 $ 100,932 $ — $ 196,762 Three Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 337,782 $ 118,683 $ (1,189) $ 455,276 Product sales revenue 149,682 43,391 — 193,073 Affiliate management fee revenue 1,609 3,685 — 5,294 Total revenue 489,073 165,759 (1,189) 653,643 Operating expense 108,145 43,828 (2,857) 149,116 Cost of product sales 125,108 46,690 — 171,798 Other operating (income) expense (3,167) 1,263 — (1,904) Earnings of non-controlled entities (8,197) (32,392) — (40,589) Operating margin 267,184 106,370 1,668 375,222 Depreciation, amortization and impairment expense 34,100 16,490 1,668 52,258 G&A expense 40,318 15,771 — 56,089 Operating profit $ 192,766 $ 74,109 $ — $ 266,875 Six Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 569,145 $ 279,295 $ (3,163) $ 845,277 Product sales revenue 316,959 14,948 — 331,907 Affiliate management fee revenue 3,097 7,510 — 10,607 Total revenue 889,201 301,753 (3,163) 1,187,791 Operating expense 202,058 92,689 (6,361) 288,386 Cost of product sales 254,754 20,787 — 275,541 Other operating (income) expense (2,030) (1,372) — (3,402) Earnings of non-controlled entities (18,812) (58,537) — (77,349) Operating margin 453,231 248,186 3,198 704,615 Depreciation, amortization and impairment expense 79,801 31,788 3,198 114,787 G&A expense 56,222 21,761 — 77,983 Operating profit $ 317,208 $ 194,637 $ — $ 511,845 Six Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Total Transportation and terminals revenue $ 635,465 $ 234,897 $ (3,001) $ 867,361 Product sales revenue 334,199 72,561 — 406,760 Affiliate management fee revenue 3,159 7,437 — 10,596 Total revenue 972,823 314,895 (3,001) 1,284,717 Operating expense 199,629 83,030 (6,308) 276,351 Cost of product sales 265,944 76,815 — 342,759 Other operating (income) expense (3,406) 1,964 — (1,442) Earnings of non-controlled entities (17,368) (62,273) — (79,641) Operating margin 528,024 215,359 3,307 746,690 Depreciation, amortization and impairment expense 70,202 33,394 3,307 106,903 G&A expense 73,271 28,768 — 102,039 Operating profit $ 384,551 $ 153,197 $ — $ 537,748

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Revenue from External Customers by Products and Services	The following tables provide details of our revenue disaggregated by key activities that comprise our performance obligations by operating segment (in thousands): Three Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 162,801 $ 67,217 $ — $ 230,018 Terminalling 27,057 5,742 — 32,799 Storage 48,125 35,044 (1,581) 81,588 Ancillary services 25,957 6,841 — 32,798 Lease revenue 3,770 18,793 — 22,563 Transportation and terminals revenue 267,710 133,637 (1,581) 399,766 Product sales revenue 25,556 8,814 — 34,370 Affiliate management fee revenue 1,513 3,803 — 5,316 Total revenue 294,779 146,254 (1,581) 439,452 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (1) (3,770) (18,793) — (22,563) (Gains) losses from futures contracts included in product sales revenue (2) 26,773 2,321 — 29,094 Affiliate management fee revenue (1,513) (3,803) — (5,316) Total revenue from contracts with customers under ASC 606 $ 316,269 $ 125,979 $ (1,581) $ 440,667 (1) Lease revenue is accounted for under Accounting Standards Codification (“ASC”) 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Three Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 232,036 $ 59,704 $ — $ 291,740 Terminalling 25,203 3,218 — 28,421 Storage 44,607 29,776 (1,189) 73,194 Ancillary services 31,941 7,611 — 39,552 Lease revenue 3,995 18,374 — 22,369 Transportation and terminals revenue 337,782 118,683 (1,189) 455,276 Product sales revenue 149,682 43,391 — 193,073 Affiliate management fee revenue 1,609 3,685 — 5,294 Total revenue 489,073 165,759 (1,189) 653,643 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers: Lease revenue (1) (3,995) (18,374) — (22,369) (Gains) losses from futures contracts included in product sales revenue (2) 34,252 6,175 — 40,427 Affiliate management fee revenue (1,609) (3,685) — (5,294) Total revenue from contracts with customers under ASC 606 $ 517,721 $ 149,875 $ (1,189) $ 666,407 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Six Months Ended June 30, 2020 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 341,257 $ 153,999 $ — $ 495,256 Terminalling 57,388 9,051 — 66,439 Storage 103,082 64,227 (3,163) 164,146 Ancillary services 55,486 13,917 — 69,403 Lease revenue 11,932 38,101 — 50,033 Transportation and terminals revenue 569,145 279,295 (3,163) 845,277 Product sales revenue 316,959 14,948 — 331,907 Affiliate management fee revenue 3,097 7,510 — 10,607 Total revenue 889,201 301,753 (3,163) 1,187,791 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (11,932) (38,101) — (50,033) (Gains) losses from futures contracts included in product sales revenue (2) (88,669) (401) — (89,070) Affiliate management fee revenue (3,097) (7,510) — (10,607) Total revenue from contracts with customers under ASC 606 $ 785,503 $ 255,741 $ (3,163) $ 1,038,081 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging . Six Months Ended June 30, 2021 Refined Products Crude Oil Intersegment Eliminations Total Transportation $ 425,463 $ 114,750 $ 540,213 Terminalling 47,755 9,335 57,090 Storage 93,622 59,038 (3,001) 149,659 Ancillary services 60,483 15,557 76,040 Lease revenue 8,142 36,217 44,359 Transportation and terminals revenue 635,465 234,897 (3,001) 867,361 Product sales revenue 334,199 72,561 — 406,760 Affiliate management fee revenue 3,159 7,437 — 10,596 Total revenue 972,823 314,895 (3,001) 1,284,717 Revenue not under the guidance of ASC 606, Revenue from Contracts with Customers : Lease revenue (1) (8,142) (36,217) — (44,359) (Gains) losses from futures contracts included in product sales revenue (2) 81,603 11,531 — 93,134 Affiliate management fee revenue (3,159) (7,437) — (10,596) Total revenue from contracts with customers under ASC 606 $ 1,043,125 $ 282,772 $ (3,001) $ 1,322,896 (1) Lease revenue is accounted for under ASC 842, Leases . (2) The impact on product sales revenue from futures contracts falls under the guidance of ASC 815, Derivatives and Hedging .
Contract with Customer, Asset and Liability	The following table summarizes our accounts receivable, contract assets and contract liabilities resulting from contracts with customers (in thousands): December 31, 2020 June 30, 2021 Accounts receivable from contracts with customers $ 103,275 $ 132,260 Contract assets $ 12,220 $ 14,447 Contract liabilities $ 102,702 $ 104,445
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction	The following table provides the aggregate amount of the transaction price allocated to our unfulfilled performance obligations (“UPOs”) as of June 30, 2021 by operating segment, including the range of years remaining on our contracts with customers and an estimate of revenues expected to be recognized over the next 12 months (dollars in thousands): Refined Products Crude Oil Total Balances at June 30, 2021 $ 1,929,410 $ 1,161,010 $ 3,090,420 Remaining terms 1 - 17 years 1 - 11 years Estimated revenues from UPOs to be recognized in the next 12 months $ 360,376 $ 260,713 $ 621,089

Investments in Non-Controlled_2

Investments in Non-Controlled Entities (Tables)	6 Months Ended
	Jun. 30, 2021
Equity Method Investments and Joint Ventures [Abstract]
Equity Method Investments	Our equity investments in non-controlled entities at June 30, 2021 were comprised of: Entity Ownership Interest BridgeTex Pipeline Company, LLC (“BridgeTex”) 30% Double Eagle Pipeline LLC (“Double Eagle”) 50% HoustonLink Pipeline Company, LLC (“HoustonLink”) 50% MVP Terminalling, LLC (“MVP”) 25% Powder Springs Logistics, LLC (“Powder Springs”) 50% Saddlehorn Pipeline Company, LLC (“Saddlehorn”) 30% Seabrook Logistics, LLC (“Seabrook”) 50% Texas Frontera, LLC (“Texas Frontera”) 50% . We recorded the following revenue and expense transactions from certain of these non-controlled entities in our consolidated statements of income (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2021 2020 2021 Transportation and terminals revenue: BridgeTex, pipeline capacity and storage $ 12,677 $ 12,958 $ 23,425 $ 23,698 Double Eagle, throughput revenue $ 1,421 $ 857 $ 3,021 $ 1,833 Saddlehorn, storage revenue $ 565 $ 579 $ 1,131 $ 1,159 Operating expense: Seabrook, storage lease and ancillary services $ 7,479 $ 5,549 $ 14,378 $ 10,859 Other operating income: Seabrook, gain on sale of air emission credits $ — $ 434 $ 1,410 $ 434 Our consolidated balance sheets reflected the following balances related to transactions with our non-controlled entities (in thousands): December 31, 2020 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 355 $ 27 $ 970 $ — Double Eagle $ 277 $ — $ — $ — HoustonLink $ — $ — $ 144 $ — MVP $ — $ 467 $ 2,297 $ — Powder Springs $ — $ — $ — $ 10,223 Saddlehorn $ — $ 121 $ — $ — Seabrook $ — $ — $ 7,274 $ — June 30, 2021 Trade Accounts Receivable Other Accounts Receivable Other Accounts Payable Long-Term Receivables BridgeTex $ 2,835 $ 16 $ 4,391 $ — Double Eagle $ 204 $ — $ — $ — HoustonLink $ — $ — $ 170 $ — MVP $ — $ 1,271 $ — $ — Powder Springs $ 7 $ — $ — $ 10,296 Saddlehorn $ — $ 5,011 $ — $ — Seabrook $ — $ 14 $ 1,857 $ — A summary of our investments in non-controlled entities (representing only our proportionate interest) follows (in thousands): Investments at December 31, 2020 $ 1,213,856 Additional investment 5,616 Sale of ownership interest in MVP (201,673) Earnings of non-controlled entities: Proportionate share of earnings 80,524 Amortization of excess investment and capitalized interest (883) Earnings of non-controlled entities 79,641 Less: Distributions from operations of non-controlled entities 94,451 Investments at June 30, 2021 $ 1,002,989

Inventory (Tables)

Inventory (Tables)	6 Months Ended
	Jun. 30, 2021
Inventory Disclosure [Abstract]
Schedule of Inventory	Inventory at December 31, 2020 and June 30, 2021 was as follows (in thousands): December 31, 2020 June 30, Refined products $ 71,982 $ 93,188 Crude oil 32,431 24,887 Liquefied petroleum gases 25,040 39,723 Transmix 23,397 53,757 Additives 5,354 5,354 Total inventory $ 158,204 $ 216,909

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Consolidated Debt	Long-term debt at December 31, 2020 and June 30, 2021 was as follows (in thousands): December 31, June 30, 3.20% Notes due 2025 $ 250,000 $ 250,000 5.00% Notes due 2026 650,000 650,000 3.25% Notes due 2030 500,000 500,000 6.40% Notes due 2037 250,000 250,000 4.20% Notes due 2042 250,000 250,000 5.15% Notes due 2043 550,000 550,000 4.20% Notes due 2045 250,000 250,000 4.25% Notes due 2046 500,000 500,000 4.20% Notes due 2047 500,000 500,000 4.85% Notes due 2049 500,000 500,000 3.95% Notes due 2050 800,000 800,000 Face value of long-term debt 5,000,000 5,000,000 Unamortized debt issuance costs (1) (40,143) (39,030) Net unamortized debt premium (1) 18,834 18,717 Long-term debt, net $ 4,978,691 $ 4,979,687 (1) Debt issuance costs and note discounts and premiums are being amortized or accreted to the applicable notes over the respective lives of those notes.

Leases (Tables)

Leases (Tables)	6 Months Ended
	Jun. 30, 2021
Leases [Abstract]
Operating Leases	The following tables provide information about our third-party and Seabrook operating leases (in thousands): Three Months Ended June 30, 2020 Three Months Ended June 30, 2021 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 5,709 $ 7,479 $ 13,188 $ 6,924 $ 5,549 $ 12,473 Six Months Ended June 30, 2020 Six Months Ended June 30, 2021 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Total lease expense $ 11,699 $ 14,378 $ 26,077 $ 13,945 $ 10,859 $ 24,804 December 31, 2020 June 30, 2021 Third-Party Leases Seabrook Lease All Leases Third-Party Leases Seabrook Lease All Leases Current lease liability $ 17,099 $ 10,434 $ 27,533 $ 17,366 $ 8,369 $ 25,735 Long-term lease liability $ 84,982 $ 52,501 $ 137,483 $ 116,033 $ 48,550 $ 164,583 Right-of-use asset $ 103,142 $ 62,936 $ 166,078 $ 130,311 $ 56,920 $ 187,231

Employee Benefit Plans (Tables)

Employee Benefit Plans (Tables)	6 Months Ended
	Jun. 30, 2021
Retirement Benefits [Abstract]
Schedule of Consolidated Net Periodic Benefit Costs	Net periodic benefit expense for the three and six months ended June 30, 2020 and 2021 were as follows (in thousands): Three Months Ended Three Months Ended June 30, 2020 June 30, 2021 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 6,735 $ 67 $ 6,963 $ 74 Interest cost 2,711 127 2,283 112 Expected return on plan assets (2,809) — (2,921) — Amortization of prior service credit (45) — (45) — Amortization of actuarial loss 1,322 136 1,241 171 Settlement cost — — 1,451 — Net periodic benefit cost $ 7,914 $ 330 $ 8,972 $ 357 Six Months Ended Six Months Ended June 30, 2020 June 30, 2021 Pension Other Postretirement Pension Other Postretirement Components of net periodic benefit costs: Service cost $ 13,938 $ 129 $ 14,316 $ 150 Interest cost 5,513 239 4,683 207 Expected return on plan assets (5,695) — (5,967) — Amortization of prior service credit (90) — (90) — Amortization of actuarial loss 2,734 255 2,785 318 Settlement cost 969 — 1,451 — Settlement gain on disposition of assets (1,342) — — — Net periodic benefit cost $ 16,027 $ 623 $ 17,178 $ 675
Schedule of Amounts Recognized in Other Comprehensive Loss	The changes in accumulated other comprehensive loss (“AOCL”) related to employee benefit plan assets and benefit obligations for the three and six months ended June 30, 2020 and 2021 were as follows (in thousands): Three Months Ended Three Months Ended June 30, 2020 June 30, 2021 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (101,447) $ (8,259) $ (116,283) $ (10,262) Net actuarial gain (loss) 1,560 (1,146) 12,366 (1,565) Recognition of prior service credit amortization in income (45) — (45) — Recognition of actuarial loss amortization in income 1,322 136 1,241 171 Recognition of settlement cost in income — — 1,451 — Ending balance $ (98,610) $ (9,269) $ (101,270) $ (11,656) Six Months Ended Six Months Ended June 30, 2020 June 30, 2021 Gains (Losses) Included in AOCL Pension Benefits Other Postretirement Benefits Pension Benefits Other Postretirement Benefits Beginning balance $ (104,739) $ (8,378) $ (117,782) $ (10,409) Net actuarial gain (loss) 813 (1,146) 12,366 (1,565) Curtailment gain 1,703 — — — Recognition of prior service credit amortization in income (90) — (90) — Recognition of actuarial loss amortization in income 2,734 255 2,785 318 Recognition of settlement cost in income 969 — 1,451 — Ending balance $ (98,610) $ (9,269) $ (101,270) $ (11,656)

Long-Term Incentive Plan (Table

Long-Term Incentive Plan (Tables)	6 Months Ended
	Jun. 30, 2021
Share-based Payment Arrangement [Abstract]
Equity-Based Incentive Compensation Expense	Equity-based incentive compensation expense for the three and six months ended June 30, 2020 and 2021, primarily recorded as G&A expense on our consolidated statements of income, was as follows (in thousands): Three Months Ended June 30, Six Months Ended June 30, 2020 2021 2020 2021 Performance-based awards $ 1,821 $ 2,654 $ (126) $ 4,870 Time-based awards 2,435 2,727 4,537 5,190 Total $ 4,256 $ 5,381 $ 4,411 $ 10,060

Derivative Financial Instrume_2

Derivative Financial Instruments (Tables)	6 Months Ended
	Jun. 30, 2021
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule Of NYMEX Contracts And Butane Price Swap Purchase Agreements	Our open futures contracts at June 30, 2021 were as follows: Type of Contract/Accounting Methodology Product Represented by the Contract and Associated Barrels Maturity Dates Futures - Economic Hedges 4.3 million barrels of refined products and crude oil Between July 2021 and November 2022 Futures - Economic Hedges 0.7 million barrels of gas liquids Between September 2021 and February 2022
Derivatives and Offset Amounts	A schedule of the derivative amounts we have offset and the deposit amounts we could offset under a master netting arrangement are provided below as of December 31, 2020 and June 30, 2021 (in thousands): Description Gross Amounts of Recognized Liabilities Gross Amounts of Assets Offset in the Consolidated Balance Sheets Net Amounts of Liabilities Presented in the Consolidated Balance Sheets Margin Deposit Amounts Not Offset in the Consolidated Balance Sheets Net Asset Amount (1) As of December 31, 2020 $ (21,748) $ 1,201 $ (20,547) $ 34,165 $ 13,618 As of June 30, 2021 $ (27,429) $ 6,107 $ (21,322) $ 44,674 $ 23,352 (1) Amount represents the maximum loss we would incur if all of our counterparties failed to perform on their derivative contracts.
Derivatives and Hedging-Cash Flow Hedges	The changes in derivative activity included in AOCL for the three and six months ended June 30, 2020 and 2021 were as follows (in thousands): Three Months Ended Six Months Ended June 30, June 30, Derivative Losses Included in AOCL 2020 2021 2020 2021 Beginning balance $ (60,065) $ (54,112) $ (48,960) $ (54,999) Net gain (loss) on cash flow hedges 1,470 — (10,444) — Reclassification of net loss on cash flow hedges to income 847 888 1,656 1,775 Ending balance $ (57,748) $ (53,224) $ (57,748) $ (53,224) The following is a summary of the effect on our consolidated statements of income for the three and six months ended June 30, 2020 and 2021 of derivatives that were designated as cash flow hedges (in thousands): Interest Rate Contracts Amount of Gain (Loss) Recognized in AOCL on Derivatives Location of Loss Reclassified from AOCL into Income Amount of Loss Reclassified from AOCL into Income Three Months Ended June 30, 2020 $ 1,470 Interest expense $ (847) Three Months Ended June 30, 2021 $ — Interest expense $ (888) Six Months Ended June 30, 2020 $ (10,444) Interest expense $ (1,656) Six Months Ended June 30, 2021 $ — Interest expense $ (1,775)
Derivatives and Hedging-Overall-Subsequent Measurement	The following table provides a summary of the effect on our consolidated statements of income for the three and six months ended June 30, 2020 and 2021 of derivatives that were not designated as hedging instruments (in thousands): Amount of Gain (Loss) Recognized on Derivatives Three Months Ended Six Months Ended Location of Gain (Loss) June 30, June 30, Derivative Instrument 2020 2021 2020 2021 Futures contracts Product sales revenue $ (29,094) $ (40,427) $ 89,070 $ (93,134) Futures contracts Cost of product sales (494) 6,257 (4,017) 7,607 Basis derivative agreement Other operating income (expense) 3,400 (1,277) 501 (1,927) Total $ (26,188) $ (35,447) $ 85,554 $ (87,454)
Derivatives and Hedging-Designated	The following tables provide a summary of the fair value of derivatives , which are presented on a net basis in our consolidated balance sheets, that were not designated as hedging instruments as of December 31, 2020 and June 30, 2021 (in thousands): December 31, 2020 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 127 Commodity derivatives contracts, net $ 21,748 Future contracts Other noncurrent assets 1,074 Other noncurrent liabilities — Basis derivative agreement Other current assets — Other current liabilities 8,774 Basis derivative agreement Other noncurrent assets — Other noncurrent liabilities 1,468 Total $ 1,201 Total $ 31,990 June 30, 2021 Asset Derivatives Liability Derivatives Derivative Instrument Balance Sheet Location Fair Value Balance Sheet Location Fair Value Futures contracts Commodity derivatives contracts, net $ 6,107 Commodity derivatives contracts, net $ 24,032 Futures contracts Other noncurrent assets — Other noncurrent liabilities 3,397 Basis derivative agreement Other current assets — Other current liabilities 5,028 Total $ 6,107 Total $ 32,457

Fair Value (Tables)

Fair Value (Tables)	6 Months Ended
	Jun. 30, 2021
Fair Value Disclosures [Abstract]
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis	The following tables summarize the carrying amounts, fair values and fair value measurements recorded or disclosed as of December 31, 2020 and June 30, 2021 based on the three levels established by ASC 820, Fair Value Measurements and Disclosures (in thousands): Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (20,547) $ (20,547) $ (20,547) $ — $ — Basis derivative agreement $ (10,242) $ (10,242) $ — $ (10,242) Long-term receivables $ 22,755 $ 22,755 $ — $ — $ 22,755 Contractual obligations $ (11,207) $ (11,207) $ — $ — $ (11,207) Debt $ (4,978,691) $ (5,880,850) $ — $ (5,880,850) $ — Assets (Liabilities) Fair Value Measurements as of Carrying Amount Fair Value Quoted Prices in Active Markets Significant Significant Commodity derivatives contracts $ (21,322) $ (21,322) $ (21,322) $ — $ — Basis derivative agreement $ (5,028) $ (5,028) $ — $ (5,028) $ — Long-term receivables $ 20,883 $ 20,883 $ — $ — $ 20,883 Contractual obligations $ (11,142) $ (11,142) $ — $ — $ (11,142) Debt $ (4,979,687) $ (5,688,517) $ — $ (5,688,517) $ —

Partners' Capital and Distrib_2

Partners' Capital and Distributions (Tables)	6 Months Ended
	Jun. 30, 2021
Partners' Capital Notes [Abstract]
Schedule of Capital Units	The following table details the changes in the number of our common units outstanding from December 31, 2020 through June 30, 2021: Common units outstanding on December 31, 2020 223,119,811 Units repurchased during 2021 (1,723,188) January 2021–Settlement of employee LTIP awards 150,435 During 2021–Other (1) 12,572 Common units outstanding on June 30, 2021 221,559,630 (1) Common units issued to settle the equity-based retainers paid to independent directors of our general partner.
Schedule of Distributions	Distributions we paid during 2020 and 2021 were as follows (in thousands, except per unit amounts): Payment Date Per Unit Total Distribution 02/14/2020 $ 1.0275 $ 234,774 05/15/2020 1.0275 231,245 Through 06/30/2020 2.0550 466,019 08/14/2020 1.0275 231,245 11/13/2020 1.0275 229,853 Total 4.1100 927,117 02/12/2021 $ 1.0275 229,423 05/14/2021 1.0275 228,962 Through 06/30/2021 2.0550 458,385 08/13/2021 (1) 1.0275 227,653 Total $ 3.0825 $ 686,038 (1) Our general partner’s board of directors declared this distribution in July 2021 to be paid on August 13, 2021 to unitholders of record at the close of business on August 6, 2021. The estimated total distribution is based upon the number of common units currently outstanding.

Organization, Description of _3

Organization, Description of Business and Basis of Presentation (Narrative) (Details) bbl in Millions	Jun. 30, 2021bblTerminalmi	Jun. 10, 2021Terminalbbl
Independent Terminals Network | Discontinued Operations, Held-for-sale
Organization and Description of Business [Line Items]
Number of Independent Terminals | Terminal	26	26
Contracted Storage	6	6
Refined Products Segment [Member]
Organization and Description of Business [Line Items]
Pipeline Length | mi	9,800
Number of Pipeline Terminals | Terminal	54
Number of Marine Terminals | Terminal	2
Number Of Marine Terminals, Owned Through Joint Venture | Terminal	1
Crude Oil Pipeline and Terminals Segment [Member]
Organization and Description of Business [Line Items]
Pipeline Length | mi	2,200
Storage Capacity	37
Contracted Storage	27
Pipeline, Length - Wholly Owned | mi	1,000
Storage Capacity - Wholly Owned	30
Contracted Storage - Wholly Owned	24

Discontinued Operations and A_3

Discontinued Operations and Assets Held for Sale (Narrative) (Details) $ in Thousands, bbl in Millions	Jun. 10, 2021USD ($)Terminalbbl	Jun. 30, 2021USD ($)bblTerminal	Jun. 30, 2020USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from Sale of Productive Assets		$ 271,843	$ 332,872
Independent Terminals Network | Discontinued Operations, Held-for-sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Independent Terminals | Terminal	26	26
Contracted Storage | bbl	6	6
Proceeds from Sale of Productive Assets	$ 435,000

Discontinued Operations and A_4

Discontinued Operations and Assets Held for Sale (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	$ 41,419	$ 20,956	$ 71,418	$ 55,423
Costs and expenses:
Operating	3,887	6,420	7,256	7,229
Cost of product sales	17,868	6,535	31,774	24,204
Depreciation, amortization and impairment	3,519	3,556	7,002	7,287
General and administrative	627	521	1,257	1,093
Total costs and expenses	25,901	17,032	47,289	39,813
Income from discontinued operations	15,518	3,924	24,129	15,610
Assets:
Trade accounts receivable	6,311		6,311		$ 5,568
Inventory	10,431		10,431		9,185
Net property, plant and equipment	268,922		268,922		274,857
Goodwill	2,709		2,709		2,709
Other assets	2,146		2,146		306
Total assets classified as held for sale	290,519		290,519		292,625
Liabilities:
Accounts payable	2,342		2,342		2,034
Accrued product liabilities	5,672		5,672		3,986
Other liabilities	1,953		1,953		3,911
Total liabilities classified as held for sale	9,967		9,967		$ 9,931
Transportation and terminals revenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	13,742	12,049	26,827	24,933
Product sales revenue
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total revenue	$ 27,677	$ 8,907	$ 44,591	$ 30,490

Segment Disclosures (Schedule O

Segment Disclosures (Schedule Of Business Segment Reporting Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Revenues	$ 653,643	$ 439,452	$ 1,284,717	$ 1,187,791
Operating expense	149,116	139,687	276,351	288,386
Cost of product sales	171,798	43,974	342,759	275,541
Other operating (income) expense	(1,904)	(3,913)	(1,442)	(3,402)
Earnings of non-controlled entities	(40,589)	(33,689)	(79,641)	(77,349)
Operating margin	375,222	293,393	746,690	704,615
Depreciation, amortization and impairment	52,258	54,984	106,903	114,787
G&A expense	56,089	41,647	102,039	77,983
Operating profit	266,875	196,762	537,748	511,845
Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	489,073	294,779	972,823	889,201
Operating expense	108,145	96,985	199,629	202,058
Cost of product sales	125,108	39,081	265,944	254,754
Other operating (income) expense	(3,167)	(138)	(3,406)	(2,030)
Earnings of non-controlled entities	(8,197)	(4,592)	(17,368)	(18,812)
Operating margin	267,184	163,443	528,024	453,231
Depreciation, amortization and impairment	34,100	37,473	70,202	79,801
G&A expense	40,318	30,140	73,271	56,222
Operating profit	192,766	95,830	384,551	317,208
Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	165,759	146,254	314,895	301,753
Operating expense	43,828	45,917	83,030	92,689
Cost of product sales	46,690	4,893	76,815	20,787
Other operating (income) expense	1,263	(3,775)	1,964	(1,372)
Earnings of non-controlled entities	(32,392)	(29,097)	(62,273)	(58,537)
Operating margin	106,370	128,316	215,359	248,186
Depreciation, amortization and impairment	16,490	15,877	33,394	31,788
G&A expense	15,771	11,507	28,768	21,761
Operating profit	74,109	100,932	153,197	194,637
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(1,189)	(1,581)	(3,001)	(3,163)
Operating expense	(2,857)	(3,215)	(6,308)	(6,361)
Cost of product sales	0	0	0	0
Other operating (income) expense	0	0	0	0
Earnings of non-controlled entities	0	0	0	0
Operating margin	1,668	1,634	3,307	3,198
Depreciation, amortization and impairment	1,668	1,634	3,307	3,198
G&A expense	0	0	0	0
Operating profit	0	0	0	0
Transportation and terminals revenue
Segment Reporting Information [Line Items]
Revenues	455,276	399,766	867,361	845,277
Transportation and terminals revenue | Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	337,782	267,710	635,465	569,145
Transportation and terminals revenue | Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	118,683	133,637	234,897	279,295
Transportation and terminals revenue | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	(1,189)	(1,581)	(3,001)	(3,163)
Product sales revenue
Segment Reporting Information [Line Items]
Revenues	193,073	34,370	406,760	331,907
Product sales revenue | Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	149,682	25,556	334,199	316,959
Product sales revenue | Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	43,391	8,814	72,561	14,948
Product sales revenue | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	0	0	0	0
Affiliate management fee revenue
Segment Reporting Information [Line Items]
Revenues	5,294	5,316	10,596	10,607
Affiliate management fee revenue | Operating Segments [Member] | Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenues	1,609	1,513	3,159	3,097
Affiliate management fee revenue | Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenues	3,685	3,803	7,437	7,510
Affiliate management fee revenue | Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0

Revenue (Narrative) (Details)

Revenue (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2021
Revenue from Contract with Customer [Abstract]
Deferred Revenue, Revenue Recognized	$ 7.4	$ 73.8

Revenue (Disaggregation of Reve

Revenue (Disaggregation of Revenue) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 653,643	$ 439,452	$ 1,284,717	$ 1,187,791
Lease revenue	(22,369)	(22,563)	(44,359)	(50,033)
(Gains) losses from futures contracts included in product sales revenue	40,427	29,094	93,134	(89,070)
Affiliate management fee revenue	(5,294)	(5,316)	(10,596)	(10,607)
Total revenue from contracts with customers under ASC 606	666,407	440,667	1,322,896	1,038,081
Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenue	455,276	399,766	867,361	845,277
Product sales revenue
Disaggregation of Revenue [Line Items]
Revenue	193,073	34,370	406,760	331,907
Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Revenue	5,294	5,316	10,596	10,607
Operating Segments [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	489,073	294,779	972,823	889,201
Lease revenue	(3,995)	(3,770)	(8,142)	(11,932)
(Gains) losses from futures contracts included in product sales revenue	34,252	26,773	81,603	(88,669)
Affiliate management fee revenue	(1,609)	(1,513)	(3,159)	(3,097)
Total revenue from contracts with customers under ASC 606	517,721	316,269	1,043,125	785,503
Operating Segments [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	165,759	146,254	314,895	301,753
Lease revenue	(18,374)	(18,793)	(36,217)	(38,101)
(Gains) losses from futures contracts included in product sales revenue	6,175	2,321	11,531	(401)
Affiliate management fee revenue	(3,685)	(3,803)	(7,437)	(7,510)
Total revenue from contracts with customers under ASC 606	149,875	125,979	282,772	255,741
Operating Segments [Member] | Transportation and terminals revenue | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	337,782	267,710	635,465	569,145
Operating Segments [Member] | Transportation and terminals revenue | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	118,683	133,637	234,897	279,295
Operating Segments [Member] | Product sales revenue | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	149,682	25,556	334,199	316,959
Operating Segments [Member] | Product sales revenue | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	43,391	8,814	72,561	14,948
Operating Segments [Member] | Affiliate management fee revenue | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	1,609	1,513	3,159	3,097
Operating Segments [Member] | Affiliate management fee revenue | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,685	3,803	7,437	7,510
Intersegment Eliminations [Member]
Disaggregation of Revenue [Line Items]
Revenue	(1,189)	(1,581)	(3,001)	(3,163)
Lease revenue	0	0	0	0
(Gains) losses from futures contracts included in product sales revenue	0	0	0	0
Affiliate management fee revenue	0	0	0	0
Total revenue from contracts with customers under ASC 606	(1,189)	(1,581)	(3,001)	(3,163)
Intersegment Eliminations [Member] | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenue	(1,189)	(1,581)	(3,001)	(3,163)
Intersegment Eliminations [Member] | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Intersegment Eliminations [Member] | Affiliate management fee revenue
Disaggregation of Revenue [Line Items]
Revenue	0	0	0	0
Transferred over Time [Member] | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenue	455,276	399,766	867,361	845,277
Transferred over Time [Member] | Transportation [Member]
Disaggregation of Revenue [Line Items]
Revenue	291,740	230,018	540,213	495,256
Transferred over Time [Member] | Terminalling [Member]
Disaggregation of Revenue [Line Items]
Revenue	28,421	32,799	57,090	66,439
Transferred over Time [Member] | Storage [Member]
Disaggregation of Revenue [Line Items]
Revenue	73,194	81,588	149,659	164,146
Transferred over Time [Member] | Ancillary Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	39,552	32,798	76,040	69,403
Transferred over Time [Member] | Lease Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	22,369	22,563	44,359	50,033
Transferred over Time [Member] | Operating Segments [Member] | Transportation and terminals revenue | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	337,782	267,710	635,465	569,145
Transferred over Time [Member] | Operating Segments [Member] | Transportation and terminals revenue | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	118,683	133,637	234,897	279,295
Transferred over Time [Member] | Operating Segments [Member] | Transportation [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	232,036	162,801	425,463	341,257
Transferred over Time [Member] | Operating Segments [Member] | Transportation [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	59,704	67,217	114,750	153,999
Transferred over Time [Member] | Operating Segments [Member] | Terminalling [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	25,203	27,057	47,755	57,388
Transferred over Time [Member] | Operating Segments [Member] | Terminalling [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,218	5,742	9,335	9,051
Transferred over Time [Member] | Operating Segments [Member] | Storage [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	44,607	48,125	93,622	103,082
Transferred over Time [Member] | Operating Segments [Member] | Storage [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	29,776	35,044	59,038	64,227
Transferred over Time [Member] | Operating Segments [Member] | Ancillary Services [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	31,941	25,957	60,483	55,486
Transferred over Time [Member] | Operating Segments [Member] | Ancillary Services [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	7,611	6,841	15,557	13,917
Transferred over Time [Member] | Operating Segments [Member] | Lease Revenue [Member] | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	3,995	3,770	8,142	11,932
Transferred over Time [Member] | Operating Segments [Member] | Lease Revenue [Member] | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	18,374	18,793	36,217	38,101
Transferred over Time [Member] | Intersegment Eliminations [Member] | Transportation and terminals revenue
Disaggregation of Revenue [Line Items]
Revenue	(1,189)	(1,581)	(3,001)	(3,163)
Transferred over Time [Member] | Intersegment Eliminations [Member] | Transportation [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0		0
Transferred over Time [Member] | Intersegment Eliminations [Member] | Terminalling [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0		0
Transferred over Time [Member] | Intersegment Eliminations [Member] | Storage [Member]
Disaggregation of Revenue [Line Items]
Revenue	(1,189)	(1,581)	(3,001)	(3,163)
Transferred over Time [Member] | Intersegment Eliminations [Member] | Ancillary Services [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0		0
Transferred over Time [Member] | Intersegment Eliminations [Member] | Lease Revenue [Member]
Disaggregation of Revenue [Line Items]
Revenue	0	0		0
Transferred at Point in Time [Member] | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenue	193,073	34,370	406,760	331,907
Transferred at Point in Time [Member] | Operating Segments [Member] | Product sales revenue | Refined Products Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	149,682	25,556	334,199	316,959
Transferred at Point in Time [Member] | Operating Segments [Member] | Product sales revenue | Crude Oil Pipeline and Terminals Segment [Member]
Disaggregation of Revenue [Line Items]
Revenue	43,391	8,814	72,561	14,948
Transferred at Point in Time [Member] | Intersegment Eliminations [Member] | Product sales revenue
Disaggregation of Revenue [Line Items]
Revenue	$ 0	$ 0	$ 0	$ 0

Revenue (Assets and Liabilities

Revenue (Assets and Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Revenue from Contract with Customer [Abstract]
Billed Contracts Receivable	$ 132,260	$ 103,275
Contract with Customer, Asset, after Allowance for Credit Loss	14,447	12,220
Contract with Customer, Liability	$ 104,445	$ 102,702

Revenue (Performance Obligation

Revenue (Performance Obligations in Next 12 Months) (Details) $ in Thousands	Jun. 30, 2021USD ($)
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 3,090,420
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 621,089
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	12 months
Refined Products Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 1,929,410
Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	360,376
Crude Oil Pipeline and Terminals Segment [Member]
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	1,161,010
Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Amount	$ 260,713
Minimum [Member] | Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Minimum [Member] | Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Maximum [Member] | Refined Products Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	17 years
Maximum [Member] | Crude Oil Pipeline and Terminals Segment [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-04-01
Segment Reporting Information [Line Items]
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	11 years

Investments in Non-Controlled_3

Investments in Non-Controlled Entities (Details) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		6 Months Ended
	Apr. 30, 2021	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	May 01, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Proceeds from Sale of Productive Assets				$ 271,843	$ 332,872
Revenues		$ 653,643	$ 439,452	1,284,717	1,187,791
Operating		149,116	139,687	276,351	288,386
Other operating income (expense)		1,904	3,913	1,442	3,402
Trade accounts receivable		134,115		134,115			$ 103,568
Other accounts receivable		39,022		39,022			37,075
Change in Equity Method Investments [Roll Forward]
Investments, Beginning Balance				1,213,856
Additional investment				5,616
Sale of ownership interest in MVP				(201,673)
Proportionate share of earnings				80,524
Amortization of excess investment and capitalized interest				(883)
Earnings of non-controlled entities		40,589	33,689	79,641	77,349
Distributions from operations of non-controlled entities				94,451	102,699
Investments, Ending Balance		1,002,989		1,002,989
Gain on disposition of assets		(69,702)	0	(69,702)	(12,887)
Transportation and terminals revenue
Schedule of Equity Method Investments [Line Items]
Revenues		455,276	399,766	867,361	845,277
Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Related Party Transaction, Other Revenues from Transactions with Related Party		$ 700	1,000	$ 1,200	2,200
BridgeTex [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment		30.00%		30.00%
BridgeTex [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable		$ 2,835		$ 2,835			355
Other accounts receivable		16		16			27
Other Accounts Payable		4,391		4,391			970
BridgeTex [Member] | Equity Method Investee [Member] | Transportation and terminals revenue
Schedule of Equity Method Investments [Line Items]
Revenues		$ 12,958	12,677	$ 23,698	23,425
Double Eagle Pipeline Llc [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment		50.00%		50.00%
Double Eagle Pipeline Llc [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable		$ 204		$ 204			277
Double Eagle Pipeline Llc [Member] | Equity Method Investee [Member] | Transportation and terminals revenue
Schedule of Equity Method Investments [Line Items]
Revenues		$ 857	1,421	$ 1,833	3,021
HoustonLink Pipeline Company LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment		50.00%		50.00%
HoustonLink Pipeline Company LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Other Accounts Payable		$ 170		$ 170			144
MVP Terminalling, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Proceeds from Sale of Productive Assets	$ 271,000
Interest in equity method investment		25.00%		25.00%		25.00%
Change in Equity Method Investments [Roll Forward]
Gain on disposition of assets		$ 69,300
MVP Terminalling, LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Other accounts receivable		1,271		$ 1,271			467
Other Accounts Payable		$ 0		$ 0			2,297
Powder Springs Logistics, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment		50.00%		50.00%
Powder Springs Logistics, LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Trade accounts receivable		$ 7		$ 7
Other accounts receivable		0		0
Long-term receivables		$ 10,296		$ 10,296			10,223
Saddlehorn Pipeline Company [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment		30.00%		30.00%
Saddlehorn Pipeline Company [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Other accounts receivable		$ 5,011		$ 5,011			121
Saddlehorn Pipeline Company [Member] | Equity Method Investee [Member] | Transportation and terminals revenue
Schedule of Equity Method Investments [Line Items]
Revenues		$ 579	565	$ 1,159	1,131
Seabrook Logistics, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment		50.00%		50.00%
Seabrook Logistics, LLC [Member] | Equity Method Investee [Member]
Schedule of Equity Method Investments [Line Items]
Operating		$ 5,549	7,479	$ 10,859	14,378
Other operating income (expense)		434	$ 0	434	$ 1,410
Other accounts receivable		14		14
Other Accounts Payable		$ 1,857		$ 1,857			$ 7,274
Texas Frontera Llc [Member]
Schedule of Equity Method Investments [Line Items]
Interest in equity method investment		50.00%		50.00%

Inventory (Details)

Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Inventory Disclosure [Abstract]
Refined products	$ 93,188	$ 71,982
Crude oil	24,887	32,431
Liquefied petroleum gases	39,723	25,040
Transmix	53,757	23,397
Additives	5,354	5,354
Total inventory	$ 216,909	$ 158,204

Debt (Consolidated Debt) (Detai

Debt (Consolidated Debt) (Details) - USD ($)	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 5,000,000,000	$ 5,000,000,000
Unamortized debt issuance costs	(39,030,000)	(40,143,000)
Net unamortized premium	18,717,000	18,834,000
Long-term debt, net	$ 4,979,687,000	4,978,691,000
3.20% Notes Due 2025 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.20%
Debt Instrument, Face Amount	$ 250,000,000	250,000,000
5.00% Notes Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Debt Instrument, Face Amount	$ 650,000,000	650,000,000
3.25% Notes Due 2030 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Debt Instrument, Face Amount	$ 500,000,000	500,000,000
6.40% Notes Due 2037 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.40%
Debt Instrument, Face Amount	$ 250,000,000	250,000,000
4.20% Notes Due 2042 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Debt Instrument, Face Amount	$ 250,000,000	250,000,000
5.15% Notes Due 2043 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.15%
Debt Instrument, Face Amount	$ 550,000,000	550,000,000
4.20% Notes Due 2045 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Debt Instrument, Face Amount	$ 250,000,000	250,000,000
4.25% Notes Due 2046 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Debt Instrument, Face Amount	$ 500,000,000	500,000,000
4.20% Notes Due 2047 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Debt Instrument, Face Amount	$ 500,000,000	500,000,000
4.85% Notes Due 2049 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.85%
Debt Instrument, Face Amount	$ 500,000,000	500,000,000
3.95% Notes Due 2050 [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Debt Instrument, Face Amount	$ 800,000,000	$ 800,000,000

Debt (Narrative) (Details)

Debt (Narrative) (Details) - USD ($)	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Debt Instrument, Face Amount	$ 5,000,000,000	$ 5,000,000,000
Commercial Paper [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount	0
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000,000,000
Debt, Weighted Average Interest Rate	0.20%
Commercial Paper [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Term	397 days
Senior Notes [Member] | Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity	$ 1,000,000,000
Unused commitment fee	0.125%
Long term debt	$ 0	0
Obligation for letters of credit	$ 3,500,000	$ 3,500,000
Senior Notes [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Unused commitment fee	0.075%
Senior Notes [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Unused commitment fee	0.20%
London Interbank Offered Rate (LIBOR) [Member] | Senior Notes [Member] | Revolving Credit Facility [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.875%
London Interbank Offered Rate (LIBOR) [Member] | Senior Notes [Member] | Revolving Credit Facility [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1.50%

Leases Operating Lease, Other D

Leases Operating Lease, Other Disclosure (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Total lease expense	$ 12,473	$ 13,188	$ 24,804	$ 26,077
Current lease liability	25,735		25,735		$ 27,533
Long-term lease liability	164,583		164,583		137,483
Right-of-use asset	187,231		187,231		166,078
N/A [Member]
Related Party Transaction [Line Items]
Total lease expense	6,924	5,709	13,945	11,699
Current lease liability	17,366		17,366		17,099
Long-term lease liability	116,033		116,033		84,982
Right-of-use asset	130,311		130,311		103,142
Seabrook Logistics, LLC [Member] | Equity Method Investee [Member]
Related Party Transaction [Line Items]
Total lease expense	5,549	$ 7,479	10,859	$ 14,378
Current lease liability	8,369		8,369		10,434
Long-term lease liability	48,550		48,550		52,501
Right-of-use asset	$ 56,920		$ 56,920		$ 62,936

Employee Benefit Plans (Narrati

Employee Benefit Plans (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)pension_plan	Jun. 30, 2020USD ($)	Jun. 30, 2021USD ($)pension_plan	Jun. 30, 2020USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Contribution Plan, Cost | $	$ 2.3	$ 2.4	$ 5.4	$ 6.9
Number Of Sponsored Pension Plans | pension_plan	2		2
Number Of Sponsored Pension Plans, Non-Union Employees | pension_plan	1		1
Number Of Sponsored Pension Plans, Union Employees | pension_plan	1		1
Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | $	$ 27.6		$ 27.6
Other Postretirement Benefits Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Expected Future Employer Contributions, Next Fiscal Year | $	$ 0.8		$ 0.8

Employee Benefit Plans - Schedu

Employee Benefit Plans - Schedule Of Consolidated Net Periodic Benefit Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Pension Plan [Member]
Components of net periodic benefit costs:
Service cost	$ 6,963	$ 6,735	$ 14,316	$ 13,938
Interest cost	2,283	2,711	4,683	5,513
Expected return on plan assets	(2,921)	(2,809)	(5,967)	(5,695)
Amortization of prior service credit	(45)	(45)	(90)	(90)
Amortization of actuarial loss	1,241	1,322	2,785	2,734
Settlement cost	1,451	0	1,451	969
Settlement gain on disposition of assets			0	(1,342)
Net periodic benefit cost	8,972	7,914	17,178	16,027
Other Postretirement Benefits Plan [Member]
Components of net periodic benefit costs:
Service cost	74	67	150	129
Interest cost	112	127	207	239
Expected return on plan assets	0	0	0	0
Amortization of prior service credit	0	0	0	0
Amortization of actuarial loss	171	136	318	255
Settlement cost	0	0	0	0
Settlement gain on disposition of assets			0	0
Net periodic benefit cost	$ 357	$ 330	$ 675	$ 623

Employee Benefit Plans Schedule

Employee Benefit Plans Schedule of Amounts Recognized in Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Changes in AOCL [Roll Forward]
Beginning balance	$ 2,297,032	$ 2,543,977	$ 2,303,806	$ 2,715,028
Net actuarial gain (loss)	10,801	414	10,801	(333)
Curtailment gain	0	0	0	1,703
Recognition of prior service credit amortization in income	(45)	(45)	(90)	(90)
Recognition of actuarial loss amortization in income	1,412	1,458	3,103	2,989
Recognition of settlement cost in income	1,451	0	1,451	969
Ending balance	2,285,789	2,454,738	2,285,789	2,454,738
Pension Plan [Member]
Changes in AOCL [Roll Forward]
Net actuarial gain (loss)	12,366	1,560	12,366	813
Curtailment gain			0	1,703
Recognition of prior service credit amortization in income	(45)	(45)	(90)	(90)
Recognition of actuarial loss amortization in income	1,241	1,322	2,785	2,734
Recognition of settlement cost in income	1,451	0	1,451	969
Other Postretirement Benefits Plan [Member]
Changes in AOCL [Roll Forward]
Net actuarial gain (loss)	(1,565)	(1,146)	(1,565)	(1,146)
Curtailment gain			0	0
Recognition of prior service credit amortization in income	0	0	0	0
Recognition of actuarial loss amortization in income	171	136	318	255
Recognition of settlement cost in income	0	0	0	0
Accumulated Other Comprehensive Loss | Pension Plan [Member]
Changes in AOCL [Roll Forward]
Beginning balance	(116,283)	(101,447)	(117,782)	(104,739)
Ending balance	(101,270)	(98,610)	(101,270)	(98,610)
Accumulated Other Comprehensive Loss | Other Postretirement Benefits Plan [Member]
Changes in AOCL [Roll Forward]
Beginning balance	(10,262)	(8,259)	(10,409)	(8,378)
Ending balance	$ (11,656)	$ (9,269)	$ (11,656)	$ (9,269)

Long-Term Incentive Plan (Narra

Long-Term Incentive Plan (Narrative) (Details) - shares	Feb. 05, 2021	Jun. 30, 2021	Apr. 30, 2021	Mar. 31, 2021
Share-based Payment Arrangement [Abstract]
Limited partners' capital account, units authorized for issuance (in shares)			13,700,000	11,900,000
Limited partner unitholders, units remaining available (in shares)		2,400,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	558,516
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years

Long-Term Incentive Plan (Equit

Long-Term Incentive Plan (Equity-Based Incentive Compensation Expense) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	$ 5,381	$ 4,256	$ 10,060	$ 4,411
Performance Based Awards [Member]
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	2,654	1,821	4,870	(126)
Time-Based Awards [Member]
Share-based Compensation Arrangements by Share-based Payment Award [Line Items]
Allocation of LTIP expense on consolidated statements of income	$ 2,727	$ 2,435	$ 5,190	$ 4,537

Derivative Financial Instrume_3

Derivative Financial Instruments (Narrative) (Details) $ in Thousands	Jun. 30, 2021USD ($)bbl	Dec. 31, 2020USD ($)
Derivative [Line Items]
Good Faith and Margin Deposits with Broker-Dealers	$ 44,674	$ 34,165
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ (3,500)
Energy Related Derivative [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | bbl	30,000
Derivative Liability	$ 5,000	$ 10,200

Derivative Financial Instrume_4

Derivative Financial Instruments (Schedule Of NYMEX Contracts And Butane Price Swap Purchase Agreements) (Details) bbl in Millions	Jun. 30, 2021bbl
Economic Hedges [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	4.3
Economic Hedges Futures [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	0.7

Derivative Financial Instrume_5

Derivative Financial Instruments (Schedule of Derivative Offset Amounts) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivative [Line Items]
Commodity derivatives deposits	$ 44,674	$ 34,165
Exchange Traded [Member]
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	(27,429)	(21,748)
Derivative Asset, Fair Value, Gross Asset	6,107	1,201
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	(21,322)	(20,547)
Commodity derivatives deposits	44,674	34,165
Amount After Offset	$ 23,352	$ 13,618

Derivative Financial Instrume_6

Derivative Financial Instruments (Derivative Gains Included In Accumulated Other Comprehensive Loss (AOCL) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Gains Included in AOCI [Roll Forward]
Beginning balance	$ 2,297,032	$ 2,543,977	$ 2,303,806	$ 2,715,028
Net gain (loss) on cash flow hedges	0	1,470	0	(10,444)
Reclassification of net loss (gain) on cash flow hedges to income	888	847	1,775	1,656
Ending balance	2,285,789	2,454,738	2,285,789	2,454,738
Derivative Losses Included in AOCL
Derivative Gains Included in AOCI [Roll Forward]
Beginning balance	(54,112)	(60,065)	(54,999)	(48,960)
Ending balance	$ (53,224)	$ (57,748)	$ (53,224)	$ (57,748)

Derivative Financial Instrume_7

Derivative Financial Instruments (Derivatives And Hedging-Cash Flow Hedges) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on cash flow hedges	$ 0	$ 1,470	$ 0	$ (10,444)
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	(888)	(847)	(1,775)	(1,656)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net gain (loss) on cash flow hedges	0	1,470	0	(10,444)
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member] | Interest Rate Contract [Member] | Interest Expense [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Interest Rate Cash Flow Hedge Gain (Loss) Reclassified to Earnings, Net	$ (888)	$ (847)	$ (1,775)	$ (1,656)

Derivative Financial Instrume_8

Derivative Financial Instruments (Derivatives And Hedging-Overall-Subsequent Measurement) (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (35,447)	$ (26,188)	$ (87,454)	$ 85,554
Commodity Contract [Member] | Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	(40,427)	(29,094)	(93,134)	89,070
Commodity Contract [Member] | Cost of Sales [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	6,257	(494)	7,607	(4,017)
Energy Related Derivative [Member] | Other Operating Income (Expense) [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Derivative, Gain (Loss) on Derivative, Net	$ (1,277)	$ 3,400	$ (1,927)	$ 501

Derivative Financial Instrume_9

Derivative Financial Instruments (Derivatives and Hedging - Designated) (Details) - Not Designated as Hedging Instrument [Member] - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	$ 6,107	$ 1,201
Derivative Liability, Fair Value, Gross Liability	32,457	31,990
Commodity Contract [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	6,107	127
Commodity Contract [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	24,032	21,748
Commodity Contract [Member] | Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	1,074
Commodity Contract [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	3,397	0
Energy Related Derivative [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset	0	0
Energy Related Derivative [Member] | Other Current Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ 5,028	8,774
Energy Related Derivative [Member] | Other Noncurrent Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Gross Asset		0
Energy Related Derivative [Member] | Other Noncurrent Liabilities [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Gross Liability		$ 1,468

Fair Value Fair Value (Narrativ

Fair Value Fair Value (Narrative) (Details)	3 Months Ended
	Jun. 30, 2021bblTerminal	Jun. 30, 2020Terminal
Derivative [Line Items]
Number Of Marine Terminals Sold | Terminal	3	3
Energy Related Derivative [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | bbl	30,000

Fair Value (Schedule Of Carryin

Fair Value (Schedule Of Carrying Amounts And Fair Values Of Financial Assets/Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	$ (5,000)	$ (10,200)
Fair Value, Inputs, Level 1 [Member] | Commodity Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(21,322)	(20,547)
Fair Value, Inputs, Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	(5,688,517)	(5,880,850)
Fair Value, Inputs, Level 2 [Member] | Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(5,028)	(10,242)
Fair Value, Inputs, Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	20,883	22,755
Guarantees, Fair Value Disclosure	(11,142)	(11,207)
Reported Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	20,883	22,755
Guarantees, Fair Value Disclosure	(11,142)	(11,207)
Debt	(4,979,687)	(4,978,691)
Reported Value Measurement [Member] | Commodity Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(21,322)	(20,547)
Reported Value Measurement [Member] | Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(5,028)	(10,242)
Estimate of Fair Value Measurement [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term receivables	20,883	22,755
Guarantees, Fair Value Disclosure	(11,142)	(11,207)
Debt	(5,688,517)	(5,880,850)
Estimate of Fair Value Measurement [Member] | Commodity Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	(21,322)	(20,547)
Estimate of Fair Value Measurement [Member] | Energy Related Derivative [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Derivative Liability	$ (5,028)	$ (10,242)

Commitments and Contingencies (

Commitments and Contingencies (Details) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021USD ($)Terminal	Jun. 30, 2020USD ($)Terminal	Jun. 30, 2021USD ($)	Jun. 30, 2020USD ($)	Dec. 31, 2020USD ($)	Oct. 04, 2017facility
Loss Contingencies [Line Items]
Liabilities recognized for estimated environmental costs	$ 11.5		$ 11.5		$ 14.3
Environmental expenses	$ 0.9	$ 0.8	2	$ 1.2
Number Of Marine Terminals Sold | Terminal	3	3
Performance Guarantee [Member] | Other Current Liabilities [Member]
Loss Contingencies [Line Items]
Guarantees, Fair Value Disclosure	$ 0.6		0.6		0.6
Performance Guarantee [Member] | Other Noncurrent Liabilities [Member]
Loss Contingencies [Line Items]
Guarantees, Fair Value Disclosure	$ 10.2		$ 10.2		$ 10.2
Powder Springs Logistics, LLC [Member]
Loss Contingencies [Line Items]
Interest in equity method investment	50.00%		50.00%
Powder Springs Logistics, LLC [Member] | Guarantee of Indebtedness of Others [Member] | Equity Method Investee [Member]
Loss Contingencies [Line Items]
Guarantees, Fair Value Disclosure	$ 0.4		$ 0.4
Interest in equity method investment	50.00%		50.00%
Guarantor Obligations, Maximum Exposure, Undiscounted	$ 25		$ 25
Pending Litigation [Member] | Unfavorable Regulatory Action [Member]
Loss Contingencies [Line Items]
Loss Contingency, Alleged Patent Infringement, Number Of Facilities | facility						9

Related Party Transactions (Det

Related Party Transactions (Details) - Director [Member] - Methvin Company [Member] - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Related Party Transaction, Other Revenues from Transactions with Related Party	$ 17.3	$ 7.3	$ 28.4	$ 15.7
Accounts Receivable, Related Parties, Current	$ 5.2		$ 5.2		$ 3.9

Partners' Capital and Distrib_3

Partners' Capital and Distributions (Narrative) (Details)	Jun. 30, 2021USD ($)
Partners' Capital [Abstract]
Stock Repurchase Program, Authorized Amount	$ 750,000,000

Partners' Capital and Distrib_4

Partners' Capital and Distributions (Schedule of Capital Units) (Details)	6 Months Ended
	Jun. 30, 2021shares
Increase (Decrease) in Partners' Capital [Roll Forward]
Limited partner units outstanding, beginning balance (in shares)	223,119,811
Stock Repurchased During Period, Shares	(1,723,188)
Limited partner units outstanding, ending balance (in shares)	221,559,630
Management [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
During 2021–Other (in shares)	150,435
Director [Member]
Increase (Decrease) in Partners' Capital [Roll Forward]
During 2021–Other (in shares)	12,572

Partners' Capital and Distrib_5

Partners' Capital and Distributions (Schedule Of Distributions) (Details) - USD ($) $ / shares in Units, $ in Thousands	Aug. 13, 2021	May 14, 2021	Feb. 12, 2021	Nov. 13, 2020	Aug. 14, 2020	May 15, 2020	Feb. 14, 2020	Jun. 30, 2021	Jun. 30, 2020	Sep. 30, 2021	Dec. 31, 2020
Distribution Made to Limited Partner [Line Items]
Cash distribution per unit (in dollars per share)		$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 1.0275	$ 2.0550	$ 2.0550		$ 4.1100
Total Cash Distribution to Limited Partners		$ 228,962	$ 229,423	$ 229,853	$ 231,245	$ 231,245	$ 234,774	$ 458,385	$ 466,019		$ 927,117
Scenario, Forecast
Distribution Made to Limited Partner [Line Items]
Cash distribution per unit (in dollars per share)	$ 1.0275									$ 3.0825
Total Cash Distribution to Limited Partners	$ 227,653									$ 686,038

Subsequent Events (Details)

Subsequent Events (Details) - $ / shares	Sep. 30, 2021	Aug. 13, 2021	Jun. 30, 2021	May 14, 2021	Feb. 12, 2021	Dec. 31, 2020	Nov. 13, 2020	Aug. 14, 2020	Jun. 30, 2020	May 15, 2020	Feb. 14, 2020
Subsequent Event [Line Items]
Cash distribution per unit (in dollars per share)			$ 2.0550	$ 1.0275	$ 1.0275	$ 4.1100	$ 1.0275	$ 1.0275	$ 2.0550	$ 1.0275	$ 1.0275
Scenario, Forecast
Subsequent Event [Line Items]
Cash distribution per unit (in dollars per share)	$ 3.0825	$ 1.0275
Subsequent Event | Scenario, Forecast
Subsequent Event [Line Items]
Cash distribution per unit (in dollars per share)		$ 1.0275