Disclosures about Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Schedule of Financial Assets and Liabilities Measured at Fair Value

The following summarizes the fair value of the Company’s derivative assets and liabilities according to their fair value hierarchy as of the reporting dates indicated (in thousands):

	December 31, 2015
	Level 1		Level 2			Level 3		Total
Commodity derivative contracts
Assets:
Short-term derivative instruments	$	—	$	83,262		$	—	$	83,262
Long-term derivative instruments		—		25,839			—		25,839
Total derivative instrument - asset	$	—	$	109,101		$	—	$	109,101
Liabilities:
Short-term derivative instruments	$	—	$	(34,518	)	$	—	$	(34,518	)
Long-term derivative instruments		—		(15,142	)		—		(15,142	)
Total derivative instruments - liability		—		(49,660	)		—		(49,660	)
Net commodity derivative asset	$	—	$	59,441		$	—	$	59,441

	December 31, 2014
	Level 1		Level 2			Level 3		Total
Commodity derivative contracts
Assets:
Short-term derivative instruments	$	—	$	80,911		$	—	$	80,911
Long-term derivative instruments		—		70,805			—		70,805
Total derivative instrument - asset	$	—	$	151,716		$	—	$	151,716
Liabilities:
Short-term derivative instruments	$	—	$	(29,326	)	$	—	$	(29,326	)
Long-term derivative instruments		—		(31,275	)		—		(31,275	)
Total derivative instruments - liability		—		(60,601	)		—		(60,601	)
Net commodity derivative asset	$	—	$	91,115		$	—	$	91,115