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v3.26.1

Related-Party Transactions - Summary of WES Related-Party Transactions Tables (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 | Jun. 30, 2025 | Jun. 30, 2026 | Jun. 30, 2025 | Dec. 31, 2025
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other | [1] | $ 1,224,719 | $ 942,322 | $ 2,348,298 | $ 1,859,438 |
Equity income, net – related parties |  | 21,536 | 27,128 | 36,312 | 47,563 |
Cost of product |  | 117,440 | 42,681 | 220,324 | 84,173 |
Operation and maintenance |  | 285,353 | 224,629 | 549,594 | 451,143 |
General and administrative |  | 85,929 | 66,146 | 161,079 | 132,932 |
Total operating expenses | [2] | 714,954 | 524,060 | 1,377,749 | 1,047,141 |
Consolidated balance sheets [Abstract] |  |  |  |  |  |
Accounts receivable, net |  | 955,052 |  | 955,052 |  | $ 773,197
Other current assets |  | 78,756 |  | 78,756 |  | 64,253
Equity investments |  | 493,467 |  | 493,467 |  | 504,859
Other assets |  | 367,610 |  | 367,610 |  | 348,697
Total assets | [3] | 16,317,807 |  | 16,317,807 |  | 14,998,420
Accounts and imbalance payables |  | 510,372 |  | 510,372 |  | 319,170
Accrued liabilities |  | 528,843 |  | 528,843 |  | 408,375
Other liabilities |  | 1,192,801 |  | 1,192,801 |  | 864,509
Total liabilities | [4] | 11,915,657 |  | 11,915,657 |  | 10,835,298
Consolidated statements of cash flows [Abstract] |  |  |  |  |  |
Distributions from equity-investment earnings – related parties |  |  |  | 40,375 | 51,419 |
Contributions to equity investments - related parties |  |  |  | (2,578) | 0 |
Distributions from equity investments in excess of cumulative earnings – related parties |  |  |  | 9,907 | 14,047 |
Distributions to Partnership unitholders | [5] |  |  | (754,318) | (696,249) |
Service Revenues - Fee Based [Member] |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | 980,096 | 851,419 | 1,913,398 | 1,674,616 |
Service Revenues - Product Based [Member] |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | 112,641 | 50,442 | 201,408 | 109,694 |
Product Sales [Member] |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | 124,763 | 40,280 | 224,379 | 74,749 |
Related Parties [Member] |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | 570,024 | 576,247 | 1,131,483 | 1,134,649 |
Cost of product |  | 39,798 | (9,028) | 33,768 | (23,042) |
Operation and maintenance |  | 1,169 | 1,560 | 2,618 | 3,481 |
General and administrative |  | 0 | 179 | (20) | 210 |
Total operating expenses |  | 40,967 | (7,289) | 36,366 | (19,351) |
Gain (Loss) on divestiture and other, net |  | 0 | 0 | 1,366 | 0 |
Consolidated balance sheets [Abstract] |  |  |  |  |  |
Accounts receivable, net |  | 370,453 |  | 370,453 |  | 407,941
Other current assets |  | 8,819 |  | 8,819 |  | 524
Other assets |  | 33,311 |  | 33,311 |  | 33,124
Total assets |  | 906,050 |  | 906,050 |  | 946,448
Accounts and imbalance payables |  | 30,545 |  | 30,545 |  | 20,639
Accrued liabilities |  | 184,974 |  | 184,974 |  | 14,991
Other liabilities |  | 979,905 |  | 979,905 |  | 631,292
Total liabilities |  | 1,195,424 |  | 1,195,424 |  | $ 666,922
Consolidated statements of cash flows [Abstract] |  |  |  |  |  |
Distributions to Partnership unitholders |  |  |  | (307,289) | (311,914) |
Related Parties [Member] | WES Operating [Member] |  |  |  |  |  |
Consolidated statements of cash flows [Abstract] |  |  |  |  |  |
Distributions to Partnership unitholders |  |  |  | (14,505) | (14,217) |
Related Parties [Member] | Service Revenues - Fee Based [Member] |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | 542,295 | 559,192 | 1,080,356 | 1,100,937 |
Related Parties [Member] | Service Revenues - Product Based [Member] |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | 18,923 | 12,254 | 35,949 | 24,113 |
Related Parties [Member] | Product Sales [Member] |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | 8,163 | 4,801 | 14,018 | 9,599 |
Related Parties [Member] | Other |  |  |  |  |  |
Consolidated statements of operations [Abstract] |  |  |  |  |  |
Total revenues and other |  | $ 643 | $ 0 | $ 1,160 | $ 0 |
[1] | Total revenues and other includes related-party amounts of $570.0 million and $1.1 billion for the three and six months ended June 30, 2026, respectively, and $576.2 million and $1.1 billion for the three and six months ended June 30, 2025, respectively. See Note 6.
[2] | Total operating expenses includes related-party amounts of $41.0 million and $36.4 million for the three and six months ended June 30, 2026, respectively, and $(7.3) million and $(19.4) million for the three and six months ended June 30, 2025, respectively, all primarily related to changes in imbalance positions. See Note 6.
[3] | Total assets includes related-party amounts of $906.0 million and $946.4 million as of June 30, 2026, and December 31, 2025, respectively, which includes related-party accounts receivable, net of $370.5 million and $407.9 million as of June 30, 2026, and December 31, 2025, respectively. See Note 6.
[4] | Total liabilities includes related-party amounts of $1.2 billion and $666.9 million as of June 30, 2026, and December 31, 2025, respectively, which includes related-party accounts and imbalance payables of $30.5 million and $20.6 million as of June 30, 2026, and December 31, 2025, respectively. See Note 6.
[5] | See Note 6.

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