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CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands | Jun. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Current assets |  |
Cash and cash equivalents | $ 209,908 | $ 252,407
Restricted cash - other | 1,384 | 1,537
Accounts receivable, net | 23,264 | 22,166
Prepaid expenses | 1,674 | 430
Other current assets | 932 | 1,314
Total current assets | 237,162 | 277,854
Oil and natural gas properties, using full cost method of accounting |  |
Proved | 1,545,318 | 1,538,724
Unproved | 9,861 | 11,197
Less: accumulated depreciation, depletion and impairment | (1,399,863) | (1,393,801)
Net oil and natural gas properties capitalized costs | 155,316 | 156,120
Other property, plant and equipment, net | 83,312 | 86,493
Other assets | 3,212 | 3,130
Deferred tax assets, net of valuation allowance | 50,569 | 50,569
Total assets | 529,571 | 574,166
Current liabilities |  |
Accounts payable and accrued expenses | 35,694 | 38,828
Asset retirement obligations | 9,789 | 9,851
Other current liabilities | 674 | 645
Total current liabilities | 46,157 | 49,324
Asset retirement obligations | 56,544 | 54,553
Other long-term obligations | 2,063 | 2,178
Total liabilities | 104,764 | 106,055
Commitments and contingencies (Note 6) |  |
Stockholders’ Equity |  |
Common stock, $0.001 par value; 250,000 shares authorized; 37,182 issued and outstanding at June 30, 2024 and 37,091 issued and outstanding at December 31, 2023 | 37 | 37
Additional paid-in capital | 1,007,798 | 1,071,021
Accumulated deficit | (583,028) | (602,947)
Total stockholders’ equity | 424,807 | 468,111
Total liabilities and stockholders’ equity | $ 529,571 | $ 574,166

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