Consolidated Balance Sheets - WES Operating (Parenthetical) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
Materials and supplies inventory		$ 60,400	$ 56,200
Total assets	[1]	11,271,628	11,273,079
Accounts receivable, net		554,263	436,513
Total liabilities	[2]	8,163,513	8,177,319
Related Parties [Member]
Total assets		1,289,269	1,405,376
Accounts receivable, net		313,937	180,205
Total liabilities		312,305	270,521
Natural-Gas Liquids [Member]
NGLs line-fill inventory		6,500	9,800
WES Operating [Member]
Materials and supplies inventory		60,400	56,200
Total assets	[3]	11,268,259	11,264,847
Accounts receivable, net		554,263	436,513
Total liabilities	[4]	8,148,152	8,172,181
WES Operating [Member] | Related Parties [Member]
Total assets		1,300,000	1,400,000
Accounts receivable, net		313,937	180,205
Total liabilities		356,000	318,700
WES Operating [Member] | Natural-Gas Liquids [Member]
NGLs line-fill inventory		$ 6,500	$ 9,800

[1] Total assets includes related-party amounts of $1.3 billion and $1.4 billion as of December 31, 2022 and 2021, respectively, which includes related-party Accounts receivable, net of $313.9 million and $180.2 million as of December 31, 2022 and 2021, respectively. See Note 6.

[2] Total liabilities includes related-party amounts of $312.3 million and $270.5 million as of December 31, 2022 and 2021, respectively. See Note 6.

[3] Total assets includes related-party amounts of $1.3 billion and $1.4 billion as of December 31, 2022 and 2021, respectively, which includes related-party Accounts receivable, net of $313.9 million and $180.2 million as of December 31, 2022 and 2021, respectively. See Note 6.

[4] Total liabilities includes related-party amounts of $356.0 million and $318.7 million as of December 31, 2022 and 2021, respectively. See Note 6.