Note 8 - Asset Retirement Obligations (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Schedule of Asset Retirement Obligations [Table Text Block]

	Year Ended December 31,
	2023			2022
	(in thousands)
Balance, beginning of year	$	15,442		$	1,461
Acquired		11			11,811
Cost and life revisions		2,494			1,825
Plugged		(215	)		(407	)
Sold		(458	)		(189	)
Accretion		1,216			941
Balance, end of year	$	18,490		$	15,442
Asset retirement obligations - current	$	1,273		$	668
Asset retirement obligations - noncurrent		17,217			14,774
Balance, end of year	$	18,490		$	15,442