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9. Derivative Instruments (Details Narrative)
9 Months Ended
Sep. 30, 2015
USD ($)
$ / Boe
bbl
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Total volume on open commodity swaps, barrels 86,750
Weighted average price per barrel | $ / Boe 73.55
Derivative liquidations | $ $ 6,255,000