Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues:
Oil and gas sales	$ 21,828	$ 14,216
Lease bonus and other income	779
Loss on commodity derivative instruments	(302)	(1,712)
Total revenue	22,305	12,504
Operating expenses:
Production and ad valorem taxes	1,365	810
Marketing and transportation	374	391
Amortization of royalty interests in oil and natural gas properties	3,424	3,187
General, administrative, and other	5,865	3,436
Total operating expenses	11,028	7,824
Operating income	11,277	4,680
Other income (expense):
Change in fair value of warrant liability	(5,189)	(3,202)
Other income	13	13
Interest expense	(493)	(487)
Total other income (expense)	(5,669)	(3,676)
Income before income taxes	5,608	1,004
Provision for income taxes	1,820	459
Net income:	3,788	545
Net income attributable to non-controlling interests	(4,917)	(1,952)
Net loss attributable to common shareholders	$ (1,129)	$ (1,407)
Loss per common share:
Common shares - basic and diluted	$ (0.03)	$ (0.03)
Weighted average number of shares outstanding:
Common shares - basic and diluted	47,048	46,125