Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 17,474	$ 3,137
Restricted cash	8,972	0
Accounts receivable
Oil, natural gas liquid and natural gas sales	11,635	15,991
Joint interest owners and other, net	4,076	1,310
Derivative financial instruments	1,703	5,095
Prepaid expenses and other	1,118	2,208
Total current assets	44,978	27,741
Oil and gas properties, using the successful efforts method of accounting
Proved properties	314,685	1,050,168
Unproved properties	34,929	76,462
Other property and equipment	19,680	21,401
Less accumulated depreciation, depletion, amortization and impairment	(2,056)	(464,671)
Property and equipment, net	367,238	683,360
Accounts receivable	6,053	0
Accounts receivable related party	0	5,816
Derivative financial instruments	395	1,754
Other non-current assets	4,651	2,108
Total assets	423,315	720,779
Current liabilities
Accounts payable	7,651	33,355
Accounts payable – related parties	0	189
Oil, natural gas liquid and natural gas sales payable	18,760	14,811
Accrued liabilities	15,983	26,905
Derivative financial instruments	7,938	8,564
Current maturities of long-term debt	20,000	247,000
Total current liabilities	70,332	330,824
Long-term liabilities
Long-term debt	255,328	255,068
Asset retirement obligations	4,573	7,055
Deferred tax liability, net	0	931
Equity warrant liability	0	129
Equity warrant liability - related parties	0	235
Derivative financial instruments	835	1,898
Other non-current liabilities	0	3,752
Total long-term liabilities	260,736	269,068
Commitments and contingencies
Stockholders' Equity Attributable to Parent [Abstract]
Common stock, $0.001 par value	10	142,655
Predecessor preferred stock, $0.001 par value, 100,328 shares issued and outstanding		0
Additional paid-in Capital	92,953	175,738
Retained Earnings (Accumulated Deficit)	(716)	(197,506)
Total stockholders’ equity	92,247	120,887
Total liabilities and stockholders’ equity	$ 423,315	$ 720,779