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10. INCOME TAXES (Details) - USD ($) $ in Thousands | Sep. 30, 2015 | Dec. 31, 2014
--- | --- | ---
Deferred Tax Assets (Liabilities) |  |
Difference in depreciation, depletion, and capitalization methods - oil and natural gas properties | $ 1,695 | $ 1,385
Net operating losses | 4,131 | 4,131
Impairment - oil and natural gas properties | (1,122) | (1,122)
Other | 753 | 623
Total deferred tax asset | 5,457 | 5,017
Less: valuation allowance | $ (5,457) | $ (5,017)
Total deferred tax assets |  |

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