Quarterly report pursuant to Section 13 or 15(d)

ASSET RETIREMENT OBLIGATION (Details)

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ASSET RETIREMENT OBLIGATION (Details) - USD ($)
6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
ASSET RETIREMENT OBLIGATION    
Beginning balance $ 13,055,797  
Liabilities acquired 2,979,645  
Liabilities incurred 441,244  
Liabilities settled (384,956)  
Accretion expense 445,179 $ 325,790
Ending balance $ 16,536,909