Condensed Consolidated and Combined Statement of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities
Net income	$ 9,293	$ 25,701
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion and amortization	20,310	9,609
Share-based compensation expense	8,232	0
Loss on extinguishment of debt	6,933	0
Amortization of debt issue costs	354	501
Deferred income taxes	2	303
Loss on derivative instruments, net	521	1,194
Loss on derivative instruments, net	356	(670)
Gain on sale of equity securities	0	(823)
Bad debt expense	293	0
Changes in operating assets and liabilities:
Increase in accounts receivable	(2,612)	(9,342)
Decrease (increase) in other current assets	970	(4,845)
Increase in accounts payable and accrued liabilities	1,827	218
Increase in other long-term liabilities	46	0
Net cash provided by operating activities	46,525	21,846
Cash flows from investing activities
Acquisitions of oil and gas properties	(181,484)	(164,051)
Additions to other fixed assets	(400)	(571)
Proceeds from sale of oil and gas properties, net	2,001	125
Proceeds from sale of equity securities	0	933
Changes in restricted cash held in escrow for acquisitions	33	(933)
Net cash (used in) provided by investing activities	(179,850)	(164,497)
Cash flows from financing activities
Payments of short-term related party loan	0	(7,000)
Borrowings of short-term related party loan	0	7,000
Payments of short-term debt	(4,596)	0
Payments of long-term debt	(195,404)	(70,000)
Borrowings of long-term debt	70,000	193,000
Payment of debt extinguishment fees	(2,091)	0
Proceeds from issuance of Class A common stock sold in initial public offering, net of offering costs	277,075	0
Capital contributions	0	46,011
Dividends paid	(7,206)	0
Distributions to holders of temporary equity	(9,379)	0
Loan closing costs	(1,211)	(4,614)
Net cash provided by (used in) financing activities	127,188	164,397
(Decrease) increase in cash and cash equivalents	(6,137)	21,746
Cash and cash equivalents, beginning of period	31,985	6,886
Cash and cash equivalents, end of period	25,848	28,632
Supplemental disclosure of non-cash activity:
Equity securities distributed	0	(3,313)
Accrued capital expenditures	286	5
Capitalized share-based compensation expense	2,425	0
Temporary equity cumulative adjustment to fair value	93,546	0
Supplemental cash flow information:
Cash interest payments	5,657	2,888
Cash paid for taxes	$ 1,014	$ 84