Consolidated Statements of Cash Flows - WES Operating - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities
Net income (loss)		$ 208,341	$ 317,670
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		144,626	134,582
Long-lived asset and other impairments	[1]	52,401	0
Non-cash equity-based compensation expense		7,199	7,743
Deferred income taxes		924	1,132
Accretion and amortization of long-term obligations, net		1,692	1,782
Equity income, net – related parties		(39,021)	(49,607)
Distributions from equity-investment earnings – related parties		39,609	45,870
(Gain) loss on divestiture and other, net		2,118	(370)
Other		200	0
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net		(4,037)	(165,134)
Increase (decrease) in accounts and imbalance payables and accrued liabilities, net		(136,460)	(14,292)
Change in other items, net		24,832	(2,918)
Net cash provided by operating activities		302,424	276,458
Cash flows from investing activities
Capital expenditures		(173,088)	(83,971)
Contributions to equity investments – related parties		(110)	(2,070)
Distributions from equity investments in excess of cumulative earnings – related parties		12,366	9,925
(Increase) decrease in materials and supplies inventory and other		(18,346)	4,116
Net cash used in investing activities		(179,178)	(71,617)
Cash flows from financing activities
Borrowings, net of debt issuance costs		220,000	0
Repayments of debt		(313,138)	0
Increase (decrease) in outstanding checks		18,768	(7,088)
Distributions to WES Operating unitholders	[2]	(196,569)	(134,749)
Net contributions from (distributions to) related parties		0	409
Other		(12,746)	(7,225)
Net cash provided by (used in) financing activities		(297,257)	(158,591)
Net increase (decrease) in cash and cash equivalents		(174,011)	46,250
Cash and cash equivalents at beginning of period		286,656	201,999
Cash and cash equivalents at end of period		112,645	248,249
Supplemental disclosures
Interest paid, net of capitalized interest		133,245	149,289
Income taxes paid (reimbursements received)		1,270	905
Accrued capital expenditures		91,067	36,821
Third Parties [Member]
Cash flows from investing activities
Proceeds from the sale of assets to third parties		0	383
Chipeta [Member]
Cash flows from financing activities
Distributions to Chipeta noncontrolling interest owner		(2,240)	(1,984)
WES Operating [Member]
Cash flows from operating activities
Net income (loss)		208,548	318,408
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization		144,626	134,582
Long-lived asset and other impairments	[3]	52,401	0
Non-cash equity-based compensation expense		7,058	7,612
Deferred income taxes		924	1,132
Accretion and amortization of long-term obligations, net		1,692	1,782
Equity income, net – related parties		(39,021)	(49,607)
Distributions from equity-investment earnings – related parties		39,609	45,870
(Gain) loss on divestiture and other, net		2,118	(370)
Other		200	0
Changes in assets and liabilities:
(Increase) decrease in accounts receivable, net		(5,048)	(165,134)
Increase (decrease) in accounts and imbalance payables and accrued liabilities, net		(148,148)	(21,864)
Change in other items, net		26,009	(2,294)
Net cash provided by operating activities		290,968	270,117
Cash flows from investing activities
Capital expenditures		(173,088)	(83,971)
Contributions to equity investments – related parties		(110)	(2,070)
Distributions from equity investments in excess of cumulative earnings – related parties		12,366	9,925
(Increase) decrease in materials and supplies inventory and other		(18,346)	4,116
Net cash used in investing activities		(179,178)	(71,617)
Cash flows from financing activities
Borrowings, net of debt issuance costs		220,000	0
Repayments of debt		(313,138)	0
Increase (decrease) in outstanding checks		18,726	(6,953)
Distributions to WES Operating unitholders	[4]	(213,513)	(140,217)
Net contributions from (distributions to) related parties		0	409
Other		(796)	(1,140)
Net cash provided by (used in) financing activities		(290,961)	(149,885)
Net increase (decrease) in cash and cash equivalents		(179,171)	48,615
Cash and cash equivalents at beginning of period		286,101	195,598
Cash and cash equivalents at end of period		106,930	244,213
Supplemental disclosures
Interest paid, net of capitalized interest		133,245	149,289
Income taxes paid (reimbursements received)		1,270	905
Accrued capital expenditures		91,067	36,821
WES Operating [Member] | Third Parties [Member]
Cash flows from investing activities
Proceeds from the sale of assets to third parties		0	383
WES Operating [Member] | Chipeta [Member]
Cash flows from financing activities
Distributions to Chipeta noncontrolling interest owner		$ (2,240)	$ (1,984)

[1] See Note 7.

[2] Includes related-party amounts. See Note 5.

[3] See Note 7.

[4] Includes related-party amounts. See Note 5