Note 18 - Supplemental Crude Oil and Natural Gas Disclosures (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Capitalized Costs Relating to Oil and Gas Producing Activities Disclosure [Table Text Block]

	December 31,
	2021			2020
Proved properties	$	699,701		$	367,372
Unproved properties		108,392			152,741
Total capitalized costs		808,093			520,113
Less: accumulated depletion		(82,478	)		(17,477	)
Net capitalized costs	$	725,615		$	502,636

Cost Incurred in Oil and Gas Property Acquisition, Exploration, and Development Activities Disclosure [Table Text Block]

			Year Ended December 31, 2020
	Successor					Predecessor
	Year Ended December 31, 2021		August 22, 2020 through December 31, 2020			January 1, 2020 through August 21, 2020
Acquisition costs:
Proved properties	$	33,253	$	—		$	585
Unproved properties		20,792		1,181			2,753
Total acquisition costs		54,045		1,181			3,338
Exploration costs		190,346		52,837			48,801
Development costs		45,852		11,757			863
Crude oil and natural gas expenditures		290,243		65,775			53,002
Asset retirement obligations, net		1,844		(105	)		98
Total costs incurred	$	292,087	$	65,670		$	53,100

Results of Operations for Oil and Gas Producing Activities Disclosure [Table Text Block]

			Year Ended December 31, 2020
	Successor					Predecessor
	Year Ended December 31, 2021		August 22, 2020 through December 31, 2020			January 1, 2020 through August 21, 2020
Crude oil, NGL and natural gas sales	$	220,124	$	16,400		$	8,223
Lease operating expenses		25,053		2,653			4,870
Production and ad valorem taxes		10,746		886			566
Exploration and abandonment expense		1,549		5,032			4
Depletion, depreciation and amortization expense		65,201		9,877			6,385
Accretion of discount on asset retirement obligations		167		51			89
Results of operations from crude oil and natural gas production activities	$	117,408	$	(2,099	)	$	(3,691	)

Schedule of Proved Developed and Undeveloped Reserve [Table Text Block]

	Crude Oil (MBbl)			NGL (MBbl)			Natural Gas (MMcf)			Total (MBoe)
Predecessor
Proved Reserves at January 1, 2020		9,372			1,349			4,654			11,497
Purchase of minerals-in-place		44			—			36			50
Extensions and discoveries		1,008			67			252			1,117
Revisions of previous estimates		(1,555	)		(374	)		(1,144	)		(2,120	)
Production		(236	)		(20	)		(87	)		(270	)
Proved Reserves at August 21, 2020		8,633			1,022			3,711			10,274
Successor
Proved Reserves at August 22, 2020		8,633			1,022			3,711			10,274
Extensions and discoveries		11,977			1,433			5,215			14,279
Revisions of previous estimates		(1,180	)		(277	)		(875	)		(1,603	)
Production		(398	)		(18	)		(112	)		(435	)
Proved Reserves at December 31, 2020		19,032			2,160			7,939			22,515
Extensions and discoveries		36,867			4,845			19,529			44,967
Purchase of minerals-in-place		973			631			2,910			2,089
Sales of minerals-in-place		(238	)		(44	)		(139	)		(305	)
Revisions of previous estimates		(1,807	)		10			842			(1,658	)
Production		(3,002	)		(224	)		(1,020	)		(3,396	)
Proved Reserves at December 31, 2021		51,825			7,378			30,061			64,213

Schedule of Proved Developed and Undeveloped Oil and Gas Reserve Quantities [Table Text Block]

	December 31,
	2021		2020
Proved Developed Reserves (1)
Crude oil (MBbl)		22,610		8,730
NGL (MBbl)		3,540		957
Natural gas (MMcf)		14,611		3,572
Total (MBoe)		28,585		10,282
Proved Undeveloped Reserves
Crude oil (MBbl)		29,215		10,302
NGL (MBbl)		3,838		1,203
Natural gas (MMcf)		15,450		4,367
Total (MBoe)		35,628		12,233
Total Proved Reserves
Crude oil (MBbl)		51,825		19,032
NGL (MBbl)		7,378		2,160
Natural gas (MMcf)		30,061		7,939
Total (MBoe)		64,213		22,515

Standardized Measure of Discounted Future Cash Flows Relating to Proved Reserves Disclosure [Table Text Block]

	December 31,
	2021			2020
Future cash inflows	$	3,668,535		$	740,859
Future production costs		(824,865	)		(217,025	)
Future development costs		(432,370	)		(117,887	)
Future income tax expense		(431,737	)		(25,824	)
Future net cash flows		1,979,563			380,123
Discount to present value at 10% annual rate		(860,754	)		(157,931	)
Standardized measure of discounted future net cash flows	$	1,118,809		$	222,192

Schedule of Changes in Standardized Measure of Discounted Future Net Cash Flows [Table Text Block]

	Year Ended December 31,
	2021				2020 (2)
Standardized measure of discounted future net cash flows, beginning of year	$	222,192		$	140,032
Sales of crude oil and natural gas, net of production costs		(184,325	)		(15,648	)
Extensions and discoveries, net of future development costs		987,689			172,478
Net changes in prices and production costs		272,889			(50,728	)
Changes in estimated future development costs		(13,551	)		6,466
Purchases of minerals-in-place		31,353			600
Sales of minerals-in-place		(3,067	)		—
Revisions of previous quantity estimates		(40,466	)		(41,646	)
Accretion of discount		23,419			14,134
Net changes in income taxes (1)		(212,574	)		(10,675	)
Net changes in timing of production and other		35,250			7,190
Standardized measure of discounted future net cash flows, end of year	$	1,118,809		$	222,192