Note 3 - Revenue From Contracts With Customers (Tables)

12 Months Ended

Dec. 31, 2023

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Year Ended
	December 31,
	2023		2022
	(in thousands)
Revenue:
Rockies
Oil	$	10,064	$	14,318
Natural gas and liquids		326		1,138
Total		10,390		15,456
West Texas, South Texas, and Gulf Coast
Oil		11,820		15,561
Natural gas and liquids		531		1,554
Total		12,351		17,115
Mid-Continent
Oil		6,468		6,414
Natural gas and liquids		3,107		5,567
Total		9,575		11,981
Total revenue	$	32,316	$	44,552

	Year Ended
	December 31,
	2022
	(in thousands)
Revenue:
Rockies
Oil	$	14,318
Natural gas and liquids		1,138
Total		15,456
South Texas
Oil		6,384
Natural gas and liquids		774
Total		7,158
West Texas
Oil		5,408
Natural gas and liquids		331
Total		5,739
Gulf Coast
Oil		3,769
Natural gas and liquids		449
Total		4,218
Mid-Continent
Oil		6,414
Natural gas and liquids		5,567
Total		11,981
Total revenue	$	44,552