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Asset Retirement Obligations (Tables)
12 Months Ended
Dec. 31, 2015
Asset Retirement Obligations Tables  
Asset Retirement Obligations (ARO)
   2015  2014
Balance, beginning of year  $749,013   $682,203 
Liabilities incurred upon acquisition of properties   204,493    —   
Liabilities settled   (28,684)   —   
Accretion expense   70,375    66,810 
Revisions of prior estimates   —      —   
           
Balance, end of year   995,197    749,013 
Less current asset retirement obligations   (409,621)   (191,843)
           
Long-term asset retirement obligations  $585,576   $557,170