CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 203,442	$ 137,260
Restricted cash - other	1,743	2,264
Accounts receivable, net	32,187	21,505
Prepaid expenses	3,198	626
Other current assets	80	80
Total current assets	240,650	161,735
Oil and natural gas properties, using full cost method of accounting
Proved	1,477,699	1,454,016
Unproved	11,487	12,255
Less: accumulated depreciation, depletion and impairment	(1,376,147)	(1,373,217)
Net oil and natural gas properties	113,039	93,054
Other property, plant and equipment, net	94,851	97,791
Other assets	268	332
Total assets	448,808	352,912
Current liabilities
Accounts payable and accrued expenses	56,635	45,779
Derivative contracts	0	21
Asset retirement obligation	17,256	17,606
Other current liabilities	702	627
Total current liabilities	74,593	64,033
Asset retirement obligation	43,482	41,762
Other long-term obligations	1,606	1,795
Total liabilities	119,681	107,590
Commitments and Contingencies
Stockholders’ Equity
Common stock, $0.001 par value; 250,000 shares authorized; 36,742 issued and outstanding at June 30, 2022 and 36,675 issued and outstanding at December 31, 2021	37	37
Warrants	88,520	88,520
Additional paid-in capital	1,063,326	1,062,737
Accumulated deficit	(822,756)	(905,972)
Total stockholders’ equity	329,127	245,322
Total liabilities and stockholders’ equity	$ 448,808	$ 352,912