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SUPPLEMENTAL INFORMATION ON OIL AND GAS EXPLORATION AND PRODUCTION ACTIVITIES (UNAUDITED) (Tables)

12 Months Ended

Dec. 31, 2022

Extractive Industries [Abstract]

Schedule of capitalized costs related to oil and gas producing activities

Capitalized Costs Related to Oil and Gas Producing Activities (in thousands)

			Successor
			Year Ended December 31, 2022						Year Ended December 31, 2021
Proved properties			$	2,418,666					$	1,917,833
Unproved properties			178,472						211,007
Total oil and natural gas properties			2,597,138						2,128,840
Accumulated depletion, amortization and impairment			(543,780)						(277,331)
Net capitalized costs			$	2,053,358					$	1,851,509

Schedule of cost incurred in oil and gas property acquisition and development activities

Costs Incurred in Oil and Gas Property Acquisition and Development Activities (in thousands)

			Successor															Predecessor
			Year Ended December 31, 2022						Period from May 18, 2021 through December 31, 2021									Period from January 1, 2021 through May 17, 2021						Year Ended December 31, 2020
Acquisition			$	29,675					$	13,411								$	3,922					$	15,260
Development			441,458						191,193									112,986						276,622
Exploratory			—						—									—						—
Total			$	471,133					$	204,604								$	116,908					$	291,882

Schedule of results of operations for oil and gas production activities

The results of operations exclude general office overhead and interest expense attributable to oil and gas production.

			Successor															Predecessor
			Year Ended December 31, 2022						Period from May 18, 2021 through December 31, 2021									Period from January 1, 2021 through May 17, 2021						Year Ended December 31, 2020
Revenues			$	2,330,859					$	1,092,584								$	410,276					$	801,251
Production costs			(482,175)						(274,428)									(192,959)						(537,609)
Depletion			(266,449)						(159,518)									(60,831)						(229,702)
Impairment			—						(117,813)									—						(1,357,099)
Income tax benefit (expense)			—						39									7,968						(7,290)
Results of operations from producing activities			$	1,582,235					$	540,864								$	164,454					$	(1,330,449)
Depletion per Mcf of gas equivalent (Mcfe)			$	0.74					$	0.69								$	0.45					$	0.61

Schedule of oil and gas reserves

These estimates are reviewed annually and revised, either upward or downward, as warranted by additional performance data.

			Oil (MMBbl)						Natural Gas (Bcf)									NGL (MMBbl)						Natural Gas Equivalent (Bcfe)
Proved Reserves
December 31, 2019 (Predecessor)			18						4,048									62						4,528
Purchases of reserves			—						—									—						—
Extensions and discoveries			1						216									3						240
Sales of reserves			—						(74)									—						(75)
Revisions of prior reserve estimates			(4)						(1,564)									(23)						(1,725)
Current production			(2)						(345)									(4)						(380)
December 31, 2020 (Predecessor)			13						2,281									38						2,588
Purchases of reserves			—						—									—						—
Extensions and discoveries			2						617									11						695
Sales of reserves			—						—									—						—
Revisions of prior reserve estimates			2						913									9						982
Current production			(2)						(333)									(4)						(366)
December 31, 2021 (Successor)			16						3,478									54						3,898
Purchases of reserves			—						—									—						—
Extensions and discoveries			3						391									5						439
Sales of reserves			—						—									—						—
Revisions of prior reserve estimates			—						66									—						70
Current production			(2)						(322)									(4)						(359)
December 31, 2022 (Successor)			18						3,612									54						4,048
Proved developed reserves
December 31, 2019 (Predecessor)			8						1,757									30						1,984
December 31, 2020 (Predecessor)			7						1,358									22						1,527
December 31, 2021 (Successor)			8						1,928									31						2,165
December 31, 2022 (Successor)			9						2,034									34						2,295
Proved undeveloped reserves
December 31, 2019 (Predecessor)			10						2,291									32						2,544
December 31, 2020 (Predecessor)			7						923									16						1,061
December 31, 2021 (Successor)			8						1,550									22						1,733
December 31, 2022 (Successor)			9						1,578									20						1,752
Totals may not sum or recalculate due to rounding.

Schedule of standardized measure of discounted future net cash flows relating to proved oil and gas reserves

The following table summarizes estimated future net cash flows from natural gas and crude oil reserves (in millions):

			Successor															Predecessor
			Year Ended December 31, 2022						Year Ended December 31, 2021									Year Ended December 31, 2020
Future cash flows			$	26,677					$	14,938								$	4,079
Future development and abandonment costs			(1,588)						(1,141)									(652)
Future production costs			(5,872)						(5,227)									(2,325)
Future production taxes			(553)						(336)									(137)
Future income taxes			(2,609)						(437)									—
Future net cash flows			16,055						7,797									965
10% discount to reflect timing of cash flows			(7,776)						(3,659)									(425)
Standardized measure of discounted future net cash flows			$	8,279					$	4,138								$	540

Schedule of future costs to settle asset retirement obligations

The following table summarizes the total of all future costs to settle asset retirement obligations that are included in future development and abandonment costs above (in millions):

			Successor															Predecessor
			Year Ended December 31, 2022						Year Ended December 31, 2021									Year Ended December 31, 2020
Future asset retirement obligations			$	222					$	205								$	120

Schedule of changes in standardized measure of discounted future net cash flows relating to proved oil and gas reserves

Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves

The principal source of change in the standardized measure of discounted future net cash flows relating to proved reserves is presented in the table below (in millions):

			Successor															Predecessor
			Year Ended December 31, 2022						Year Ended December 31, 2021									Year Ended December 31, 2020
Sales and transfers of oil and gas produced, net of production costs			$	(1,849)					$	(1,035)								$	(264)
Net changes in prices, production costs, and development costs			5,130						2,596									(954)
Extensions and discoveries			941						639									38
Previously estimated development costs incurred during the period			204						149									215
Revisions of previous quantity estimates, less related production costs			154						858									(255)
Sales of oil and gas reserves in place			(1)						(1)									(6)
Accretion of discount			414						54									170
Net changes in income taxes			(1,067)						(178)									—
Change in production rates and other			215						516									(109)
Total change in standardized measure of discounted future net cash flows			$	4,141					$	3,598								$	(1,165)

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