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CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Current Assets |  |
Cash and cash equivalents | $ 2,330 | $ 1,870
Prepaid and other current assets | 639 | 491
Total Current Assets | 2,969 | 2,361
Property, plant and equipment, at cost: |  |
Property, plant and equipment | 91,633 | 91,746
Less accumulated depreciation and depletion | (71,219) | (71,409)
Net property, plant and equipment | 20,414 | 20,337
Operating lease right-of-use assets | 424 | 484
Restricted cash | 3,807 | 3,797
Total Assets | 27,614 | 26,979
Current Liabilities: |  |
Accounts payable | 1,141 | 852
Accrued liabilities | 1,308 | 1,770
Asset retirement obligations - current | 949 | 894
Operating lease liability - current | 154 | 153
Notes payable - current | 146 |
Total Current Liabilities | 3,698 | 3,669
Asset retirement obligations, net of current | 5,322 | 5,406
Other long-term liabilities | 500 | 500
Operating lease liability, net of current | 280 | 340
Notes payable, net of current | 185 |
Total Liabilities | 9,985 | 9,915
Commitments and Contingencies |  |
Stockholders’ Equity: |  |
Common stock, 100,000,000 shares authorized, $.001 par value; Issued shares – 6,664,976 and 3,339,541 respectively Outstanding shares - 6,664,815 and 3,339,380 respectively | 7 | 3
Paid-in capital | 326,073 | 319,758
Retained Earnings | (308,193) | (302,439)
Less: Treasury stock (161 and 161 shares, respectively), at cost | (258) | (258)
Total Stockholders’ Equity | 17,629 | 17,064
Total Liabilities and Stockholders’ Equity | $ 27,614 | $ 26,979

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