Note 8 - Asset Retirement Obligations (Tables)

6 Months Ended

12 Months Ended

Jun. 30, 2021

Dec. 31, 2020

Notes Tables

Schedule of Change in Asset Retirement Obligation [Table Text Block]

	Six Months Ended June 30, 2021
Beginning asset retirement obligations	$	2,293
Liabilities incurred from new wells		610
Revision of estimates (a)		(10	)
Accretion of discount		72
Ending asset retirement obligations	$	2,965

	Year Ended December 31, 2020
	Successor			Predecessors
	August 22, 2020 through December 31, 2020			January 1, 2020 through August 21, 2020		Year Ended December 31, 2019
Beginning asset retirement obligations	$	2,398		$	2,212	$	520
Liabilities incurred from new wells		84			97		1,511
Liabilities settled upon plugging and abandoning wells		(29	)		-		(51	)
Revision of estimates (a)		(211	)		-		160
Accretion of discount		51			89		72
Ending asset retirement obligations	$	2,293		$	2,398	$	2,212