Consolidated Statements of Operations - WES Operating - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenues and other
Revenues and other	[1]	$ 776,013	$ 837,568	$ 2,248,268	$ 2,472,284
Equity income, net – related parties		35,494	41,317	116,839	139,388
Operating expenses
Cost of product		27,590	106,833	123,795	328,237
Operation and maintenance		204,434	190,514	562,104	487,643
General and administrative		55,050	48,185	159,572	144,635
Property and other taxes		14,583	19,390	39,961	60,494
Depreciation and amortization		147,363	156,837	435,481	430,455
Long-lived asset and other impairments	[2]	245	4	52,880	94
Total operating expenses	[3]	449,265	521,763	1,373,793	1,451,558
Gain (loss) on divestiture and other, net		(1,480)	(104)	(3,668)	(884)
Operating income (loss)		360,762	357,018	987,646	1,159,230
Interest expense		(82,754)	(83,106)	(250,606)	(249,333)
Gain (loss) on early extinguishment of debt		8,565	0	15,378	91
Other income (expense), net		(1,270)	56	2,817	117
Income (loss) before income taxes		285,303	273,968	755,235	910,105
Income tax expense (benefit)		905	387	2,980	3,683
Net income (loss)		284,398	273,581	752,255	906,422
Net income (loss) attributable to noncontrolling interest		7,102	7,836	18,393	25,643
Net income (loss) attributable to Western Midstream Operating, LP		277,296	265,745	733,862	880,779
Service Revenues - Fee Based [Member]
Revenues and other
Revenues and other		695,547	666,555	2,004,920	1,954,105
Service Revenues - Product Based [Member]
Revenues and other
Revenues and other		48,446	91,356	142,212	202,721
Product Sales [Member]
Revenues and other
Revenues and other		31,652	79,430	100,336	314,755
Other [Member]
Revenues and other
Revenues and other		368	227	800	703
WES Operating [Member]
Revenues and other
Revenues and other	[4]	776,013	837,568	2,248,268	2,472,284
Equity income, net – related parties		35,494	41,317	116,839	139,388
Operating expenses
Cost of product		27,590	106,833	123,795	328,237
Operation and maintenance		204,434	190,514	562,104	487,643
General and administrative		54,541	47,783	157,645	142,871
Property and other taxes		14,583	19,390	39,961	60,494
Depreciation and amortization		147,363	156,837	435,481	430,455
Long-lived asset and other impairments	[5]	245	4	52,880	94
Total operating expenses	[6]	448,756	521,361	1,371,866	1,449,794
Gain (loss) on divestiture and other, net		(1,480)	(104)	(3,668)	(884)
Operating income (loss)		361,271	357,420	989,573	1,160,994
Interest expense		(82,754)	(83,106)	(250,606)	(249,333)
Gain (loss) on early extinguishment of debt		8,565	0	15,378	91
Other income (expense), net		(1,330)	45	2,603	99
Income (loss) before income taxes		285,752	274,359	756,948	911,851
Income tax expense (benefit)		905	387	2,980	3,683
Net income (loss)		284,847	273,972	753,968	908,168
Net income (loss) attributable to noncontrolling interest		1,432	2,404	3,377	7,627
Net income (loss) attributable to Western Midstream Operating, LP		283,415	271,568	750,591	900,541
WES Operating [Member] | Service Revenues - Fee Based [Member]
Revenues and other
Revenues and other		695,547	666,555	2,004,920	1,954,105
WES Operating [Member] | Service Revenues - Product Based [Member]
Revenues and other
Revenues and other		48,446	91,356	142,212	202,721
WES Operating [Member] | Product Sales [Member]
Revenues and other
Revenues and other		31,652	79,430	100,336	314,755
WES Operating [Member] | Other [Member]
Revenues and other
Revenues and other		$ 368	$ 227	$ 800	$ 703

[1] Total revenues and other includes related-party amounts of $463.6 million and $1.4 billion for the three and nine months ended September 30, 2023, respectively, and $476.5 million and $1.4 billion for the three and nine months ended September 30, 2022, respectively. See Note 6.

[2] See Note 8.

[3] Total operating expenses includes related-party amounts of $(35.8) million and $(53.0) million for the three and nine months ended September 30, 2023, respectively, and $(4.5) million and $(33.3) million for the three and nine months ended September 30, 2022, respectively, all primarily related to changes in imbalance positions. See Note 6.

[4] Total revenues and other includes related-party amounts of $463.6 million and $1.4 billion for the three and nine months ended September 30, 2023, respectively, and $476.5 million and $1.4 billion for the three and nine months ended September 30, 2022, respectively. See Note 6.

[5] See Note 8.

[6] Total operating expenses includes related-party amounts of $(35.1) million and $(50.5) million for the three and nine months ended September 30, 2023, respectively, and $(3.7) million and $(30.9) million for the three and nine months ended September 30, 2022, respectively, all primarily related to changes in imbalance positions. See Note 6.