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Asset Retirement Obligations (Details) - USD ($)
6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Dec. 31, 2015
Asset Retirement Obligations Details      
Balance, beginning of year $ 995,197    
Accretion expense 47,810 $ 34,635  
Balance, end of year 1,043,007    
Less current asset retirement obligations (419,094)   $ (409,621)
Long-term asset retirement obligations $ 623,913   $ 585,576