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Derivative Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2015
Derivative Financial Instruments Tables [Abstract]  
Detail Schedule of Realized and Unrealized Gains and Losses

The following table summarizes the pre-tax realized and unrealized gains and losses the Company recognized related to its natural gas derivative instruments in the Consolidated Statements of Operations for the years ended December 31, 2015, 2014 and 2013:

For the Year Ended December 31,
Commodity Derivatives:201520142013
Realized gain (loss) on commodity derivatives-natural gas (1)$146,801$(48,170)$(20,552)
Realized gain (loss) on commodity derivatives-crude oil (1)-506(326)
Unrealized gain (loss) on commodity derivatives (1)(104,190)130,066(25,876)
Total gain (loss) on commodity derivatives$42,611$82,402$(46,754)
(1) Included in gain (loss) on commodity derivatives in the Consolidated Statements of Operations.