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Reconciliation of Asset Retirement Obligations (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Reconciliation Of Asset Retirement Obligations Details    
Balance, beginning of year $ 995,197 $ 749,013
Liabilities incurred upon acquisition of properties 0 204,493
Liabilities settled (4,530) (28,684)
Accretion expense 94,333 70,375
Balance, end of year 1,085,000 995,197
Less current asset retirement obligations (425,200) (409,621)
Long-term asset retirement obligations $ 659,800 $ 585,576