Consolidated and Combined Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
REVENUES
Mineral and royalty revenues	$ 97,886	$ 59,758	$ 30,066
Lease bonus and other revenues	3,629	7,506	10,842
Total revenues	101,515	67,264	40,908
OTHER OPERATING INCOME:
Gain on sale of oil and gas properties, net	0	0	94,551
OPERATING EXPENSES
Gathering, transportation and marketing	4,985	3,944	1,754
Severance and ad valorem taxes	6,409	3,536	1,601
Depreciation, depletion, and amortization	30,940	13,915	6,955
General and administrative	21,963	6,638	3,935
Total operating expenses	64,297	28,033	14,245
NET INCOME FROM OPERATIONS	37,218	39,231	121,214
(Loss) gain on derivative instruments, net	(568)	424	(121)
Interest expense, net	(5,609)	(7,446)	(556)
Loss on extinguishment of debt	(6,892)	0	0
Gain (loss) on sale and distribution of equity securities	0	823	(4,222)
Other income, net	169	110	305
Income before income taxes	24,318	33,142	116,620
Income tax expense	2,679	327	1,008
NET INCOME	(21,639)	(32,815)	(115,612)
Less: Net income attributable to temporary equity	(5,092)	(30,976)	(115,612)
Less: Net income attributable to temporary equity	(9,646)	0	0
Net income attributable to common shareholders	$ 6,901	$ 1,839	$ 0
NET INCOME PER COMMON SHARE
Basic (in dollars per share)	$ 0.26	$ 0.00	$ 0.00
Diluted (in dollars per share)	$ 0.26	$ 0.00	$ 0.00
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING
Basic (in shares)	22,870	0	0
Diluted (in shares)	22,870	0	0