XML 42 R30.htm IDEA: XBRL DOCUMENT v3.6.0.2
Asset Retirement Obligations (Details) - USD ($)
3 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Dec. 31, 2015
Asset Retirement Obligations Details      
Balance, beginning of year $ 995,197    
Accretion expense 23,542 $ 16,941  
Balance, end of year 1,018,739    
Less current asset retirement obligations (419,094)   $ (409,621)
Long-term asset retirement obligations $ 599,645   $ 585,576