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DISCLOSURES ABOUT CRUDE OIL AND NATURAL GAS PRODUCING ACTIVITIES (UNAUDITED) - Change in Quantities of Proved Oil, Natural Gas Liquids, and Natural Gas Reserves (Details) bbl in Thousands, Mcf in Thousands, MBoe in Millions, Boe in Millions	12 Months Ended
	Dec. 31, 2023 Boe $ / MMBTU $ / bbl bbl Mcf	Dec. 31, 2022 Boe $ / bbl $ / MMBTU bbl Mcf	Dec. 31, 2021 Boe MBoe $ / bbl $ / MMBTU bbl Mcf	Dec. 31, 2020 $ / MMBTU $ / bbl bbl Mcf
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Balance at the beginning of the period	416,019	397,690	118,192
Extensions, discoveries, and other additions	21,513	27,904	36
Production	(77,430)	(62,063)	(8,595)
Divestiture of reserves	(1,940)
Removed from capital program	(4,758)	(228)	(24,054)
Acquisition of reserves	372,377	27,269	332,093
Revisions to previous estimates	(27,982)	25,447	(19,983)
Balance at the end of the period	697,799	416,019	397,690	118,192
Proved developed reserves	541,239	344,904	317,839
Proved undeveloped reserves	156,560	71,115	79,851
Proved reserves demoted to non-proved
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe	(4.8)	(0.2)	(24.1)
Proved developed and undeveloped reserve, drilling program, term	5 years
Wattenberg Field, Rocky Mountain Region
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe	(28.0)	25.4	(20.0)
Wattenberg Field, Rocky Mountain Region | Price-Related Revisions
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe	(11.1)	11.8
Wattenberg Field, Rocky Mountain Region | Non-producing Wells, Expected to be or Have Been Plugged and Abandoned Negative Revision
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe	(11.0)
Wattenberg Field, Rocky Mountain Region | Update to Production Costs, Negative Revision
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe	(14.2)
Wattenberg Field, Rocky Mountain Region | Update to Well Performance, Negative Revision
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe	(0.9)
Wattenberg Field, Rocky Mountain Region | Interests and Positive Volume Changes in Natural Gas Shrinks and NGL Yields
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe	9.2
Wattenberg Field, Rocky Mountain Region | Well Performance Forecasts and NGL Yields
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe		13.6
Wattenberg Field, Rocky Mountain Region | Changes in Well Operating Cost Methodology
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe			(13.1)
Wattenberg Field, Rocky Mountain Region | Engineering Revisions
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe			(6.9)
Revisions to previous estimates - increase (decrease) | MBoe			7.1
Wattenberg Field, Rocky Mountain Region | Fuel, Gas, Interest, Shrink and Other Negative Revisions
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Proved developed and undeveloped reserve, revision upward (reduction) of previous estimate (energy) | Boe			(7.1)
Horizontal development | Wattenberg Field, Rocky Mountain Region
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Extensions, discoveries, and other additions | Boe	21.5	27.9	0.0
Crude Oil
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Balance at the beginning of the period	152,602	143,579	52,793
Extensions, discoveries, and other additions	12,598	12,408	19
Production	(36,726)	(27,651)	(4,523)
Divestiture of reserves	(830)
Removed from capital program	(2,301)	(105)	(12,249)
Acquisition of reserves	151,717	17,479	114,379
Revisions to previous estimates	(4,255)	6,892	(6,840)
Balance at the end of the period	272,805	152,602	143,579	52,793
Proved developed reserves	199,585	117,768	104,078
Proved undeveloped reserves	73,220	34,834	39,501
Crude Oil | Wattenberg Field, Rocky Mountain Region
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Oil and gas commodity, price decrease (in dollars per share) | $ / bbl	15.45
Oil and gas commodity price (in dollars per share) | $ / bbl	78.22	93.67	66.56	39.57
Oil and gas commodity, price increase (in dollars per share) | $ / bbl		27.11
Gas contracts
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Balance at the beginning of the period | Mcf	867,500	888,499	235,728
Extensions, discoveries, and other additions | Mcf	31,174	51,358	103
Production | Mcf	(133,821)	(112,478)	(13,852)
Divestiture of reserves | Mcf	(3,582)
Removed from capital program | Mcf	(7,812)	(459)	(43,918)
Acquisition of reserves | Mcf	635,710	31,872	767,504
Revisions to previous estimates | Mcf	(68,867)	8,708	(57,066)
Balance at the end of the period | Mcf	1,320,302	867,500	888,499	235,728
Proved developed reserves | Mcf	1,077,221	750,793	748,762
Proved undeveloped reserves | Mcf	243,081	116,707	139,737
Gas contracts | Wattenberg Field, Rocky Mountain Region
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Oil and gas commodity, price decrease (in dollars per share) | $ / MMBTU	3.72
Oil and gas commodity price (in dollars per share) | $ / MMBTU	2.64	6.36	3.60	1.99
Oil and gas commodity, price increase (in dollars per share) | $ / MMBTU		2.76
NGL contracts
Changes in quantities of proved oil, natural gas liquids and natural gas reserves
Balance at the beginning of the period	118,834	106,028	26,111
Extensions, discoveries, and other additions	3,719	6,936	0
Production	(18,400)	(15,666)	(1,763)
Divestiture of reserves	(514)
Removed from capital program	(1,155)	(46)	(4,485)
Acquisition of reserves	114,708	4,478	89,797
Revisions to previous estimates	(12,249)	17,104	(3,632)
Balance at the end of the period	204,943	118,834	106,028	26,111
Proved developed reserves	162,117	102,004	88,967
Proved undeveloped reserves	42,826	16,830	17,061

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Additions to proved reserves, measured in energy equivalents, that result from (1) extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery and (2) discovery of new fields with proved reserves or of new reservoirs of proved reserves in old fields.

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Sales price per unit of oil and gas produced.

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Net quantities of an enterprise's interests in proved developed reserves of either crude oil (including condensate and natural gas liquids), natural gas, synthetic oil and gas, or other nonrenewable natural resource that is intended to be upgraded into synthetic oil and gas as of the beginning and the end of the year. "Net" quantities of reserves include those relating to the enterprise's operating and nonoperating interests in properties. Quantities of reserves relating to royalty interests owned are included in "net" quantities if the necessary information is available to the enterprise. "Net" quantities does not include reserves relating to interests of others in properties owned by the enterprise. The unit of measure for reserve quantities is defined as "barrels" for oil and synthetic oil reserves or "cubic feet" or "cubic meters" for natural gas and synthetic gas reserves.

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