CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 230,706	$ 255,722
Restricted cash - other	1,537	1,746
Accounts receivable, net	25,657	34,735
Derivative contracts	0	4,429
Prepaid expenses	926	523
Other current assets	1,479	7,747
Total current assets	260,305	304,902
Oil and natural gas properties, using full cost method of accounting
Proved	1,538,863	1,507,690
Unproved	11,189	11,516
Less: accumulated depreciation, depletion and impairment	(1,388,781)	(1,380,574)
Net oil and natural gas properties	161,271	138,632
Other property, plant and equipment, net	87,824	92,244
Other assets	3,172	190
Deferred tax assets	64,529	64,529
Total assets	577,101	600,497
Current liabilities
Accounts payable and accrued expenses	38,937	46,335
Asset retirement obligation	15,574	16,074
Other current liabilities	659	870
Total current liabilities	55,170	63,279
Asset retirement obligation	50,382	47,635
Other long-term obligations	2,032	1,661
Total liabilities	107,584	112,575
Commitments and contingencies (Note 7)
Shareholders’ Equity
Common stock, $0.001 par value; 250,000 shares authorized; 37,091 issued and outstanding at September 30, 2023 and 36,868 issued and outstanding at December 31, 2022	37	37
Additional paid-in capital	1,074,219	1,151,689
Accumulated deficit	(604,739)	(663,804)
Total shareholders’ equity	469,517	487,922
Total liabilities and shareholders’ equity	$ 577,101	$ 600,497