Condensed Consolidated Income Statements (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net operating revenues:
Operating revenues	$ 44,057	$ 23,969	$ 131,917	$ 63,119
Costs and expenses:
Operating, including production taxes	3,184	2,126	10,259	5,291
Depreciation, depletion and amortization	4,247	2,902	13,486	7,684
General and administrative expenses	2,425	910	6,023	3,803
Total costs and expenses	9,856	5,938	29,768	16,778
Net income	34,201	18,031	102,149	46,341
Allocation of net income:
General Partner	1,288	631	3,623	1,579
Unitholders	$ 32,913	$ 17,400	$ 98,526	$ 44,762
Net income per common unit (basic and diluted) (in dollars per share)	$ 0.88	$ 0.49	$ 2.64	$ 1.28
Weighted average basic and diluted common units outstanding (in shares)	37,564	35,405	37,372	34,927
Royalties [Member]
Net operating revenues:
Operating revenues	$ 33,530	$ 20,031	$ 105,549	$ 51,172
Net Profits Interest [Member]
Net operating revenues:
Operating revenues	2,995	3,493	17,478	10,692
Lease Bonus and Other [Member]
Net operating revenues:
Operating revenues	7,344	12	8,596	456
Product and Service, Other [Member]
Net operating revenues:
Operating revenues	$ 188	$ 433	$ 294	$ 799