Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 252,407	$ 255,722
Restricted cash - other	1,537	1,746
Accounts receivable, net	22,166	34,735
Derivative contracts	0	4,429
Prepaid expenses	430	523
Other current assets	1,314	7,747
Total current assets	277,854	304,902
Oil and natural gas properties, using full cost method of accounting
Proved	1,538,724	1,507,690
Unproved	11,197	11,516
Less: accumulated depreciation, depletion and impairment	(1,393,801)	(1,380,574)
Net oil and natural gas properties capitalized costs	156,120	138,632
Other property, plant and equipment, net	86,493	92,244
Other assets	3,130	190
Deferred tax assets, net of valuation allowance	50,569	64,529
Total assets	574,166	600,497
Current liabilities
Accounts payable and accrued expenses	38,828	46,335
Asset retirement obligations	9,851	16,074
Other current liabilities	645	870
Total current liabilities	49,324	63,279
Asset retirement obligations	54,553	47,635
Other long-term obligations	2,178	1,661
Total liabilities	106,055	112,575
Commitments and contingencies
Stockholders’ Equity
Common stock, $0.001 par value; 250,000 shares authorized; 37,091 issued and outstanding at December 31, 2023 and 36,868 issued and outstanding at December 31, 2022	37	37
Additional paid-in capital	1,071,021	1,151,689
Accumulated deficit	(602,947)	(663,804)
Total stockholders’ equity	468,111	487,922
Total liabilities and stockholders’ equity	$ 574,166	$ 600,497