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ASSET RETIREMENT OBLIGATIONS (Details) (USD $)
6 Months Ended
Jun. 30, 2013
Asset Retirement Obligations Roll forward  
Asset retirement obligations at the beginning of the period $ 11,029,206
Accretion expense 244,182
Liabilities incurred 16,727
Liabilities settled (187,976)
Revisions 5,422
Asset retirement obligations at the end of the period $ 11,107,561