CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 0	$ 18,799
Accounts receivable, net (see Note 13)	80,455	91,967
Prepaid expenses and other current assets	18,789	15,018
Total current assets	99,244	125,784
Property and equipment, at cost:
Oil and natural gas properties, successful efforts method	840,310	799,532
Support equipment and facilities	147,496	145,324
Other	9,648	9,641
Accumulated depreciation, depletion and amortization	(658,162)	(634,212)
Property and equipment, net	339,292	320,285
Restricted investments	11,326	4,622
Operating lease - long term right-of-use asset	7,376	2,716
Other long-term assets	2,240	1,693
Total assets	459,478	455,100
Current liabilities:
Accounts payable	38,414	33,819
Revenues payable	22,105	20,374
Accrued liabilities (see Note 13)	58,449	57,826
Short-term derivative instruments	20,884	53,144
Total current liabilities	139,852	165,163
Long-term debt (see Note 8)	190,000	230,000
Asset retirement obligations	114,614	102,398
Long-term derivative instruments	0	9,664
Operating lease liability	6,567	2,017
Other long-term liabilities	13,010	10,699
Total liabilities	464,043	519,941
Commitments and contingencies (see Note 16)
Stockholders' equity (deficit):
Preferred stock, $0.01 par value: 50,000,000 shares authorized; no shares issued and outstanding at December 31, 2022 and December 31, 2021	0	0
Warrants, 2,173,913 warrants issued and outstanding at December 31, 2021	0	4,788
Common stock, $0.01 par value: 250,000,000 shares authorized; 38,459,731 and 38,024,142 shares issued and outstanding at December 31, 2022 and December 31, 2021, respectively	386	382
Additional paid-in capital	432,251	425,066
Accumulated deficit	(437,202)	(495,077)
Total stockholders' deficit	(4,565)	(64,841)
Total liabilities and equity	$ 459,478	$ 455,100