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Supplementary Financial Information Gas and Oil (Details) - USD ($)
Dec. 31, 2016
Dec. 31, 2015
SUPPLEMENTARY FINANCIAL INFORMATION ON OIL AND NATURAL GAS EXPLORATION Details    
Oil and gas sales $ 764 $ 820
Operating expenses (703) (1,183)
Depreciation, depletion and amortization (494) (617)
Impairment of oil and gas properties 0 (2,717)
Results of operations of exploration $ (398) $ (3,697)