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OIL AND NATURAL GAS PROPERTIES (Details) (USD $)
3 Months Ended 6 Months Ended
Mar. 31, 2013
Dec. 31, 2012
Mar. 31, 2012
Mar. 31, 2013
Mar. 31, 2012
Oil and Natural Gas Properties          
Reduction of carrying value of assets $ 2,179,000   $ 1,854,000 $ 4,506,000 $ 1,854,000
Oil and natural gas properties
         
Oil and Natural Gas Properties          
Reduction of carrying value of assets $ 2,179,000 $ 2,327,000 $ 0 $ 4,506,000 $ 0