Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Schedule of Asset Retirement Obligations [Table Text Block]

	Year Ended December 31,
	2022			2021
Balance, beginning of year	$	14,125		$	16,277
Merom acquisition		7,230			—
Freelandville addition		1,631
Accretion		1,010			1,504
Change in estimate		—			(3,510	)
Payments		(3,162	)		(146	)
Balance, end of year		20,834			14,125
Less current portion		(3,580	)		(100	)
Long-term balance, end of year	$	17,254		$	14,025