Supplemental Quarterly Data (Unaudited)

12 Months Ended

Dec. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Supplemental Quarterly Data (Unaudited)

Quarterly Financial Data

	Successor
	Quarters Ended
	March 31		June 30			September 30		December 31
(in thousands)
2014:
Oil, natural gas and natural gas liquids sales	$	333,116	$	360,380		$	350,863	$	254,043
Electricity sales	9,969		10,192			11,300		8,561
Gains (losses) on oil and natural gas derivatives	3,465		(25,562		)	44,990		55,891
Total revenues and other, net	351,380		347,261			409,416		323,232
Total expenses (1)	244,156		240,116			225,834		488,741
Losses on sale of assets and other, net	3,367		4,257			49,011		64,151
Net income (loss)	79,698		79,008			115,165		(251,275		)

	Predecessor											Successor
	Periods Ended											Period Ended
	March 31			June 30		September 30			October 1, 2013 through December 16, 2013			December 17, 2013 through December 31, 2013
(in thousands)
2013:
Oil, natural gas and natural gas liquids sales	$	266,772		$	274,715	$	306,183		$	255,575		$	50,324
Electricity sales	7,589			9,513		10,046			6,844			1,444
Gains (losses) on oil and natural gas derivatives	(737		)	35,622		(45,293		)	(24,303		)	(5,049		)
Total revenues and other, net	276,123			322,338		273,014			239,827			47,118
Total expenses (1)	198,239			201,331		202,647			254,305			52,892
(Gains) losses on sale of assets and other, net	(23		)	—		—			—			10,208
Net income (loss)	32,434			61,364		28,178			(28,529		)	(19,973		)

⁽¹⁾  Includes the following expenses: lease operating, transportation, marketing, general and administrative, exploration, depreciation, depletion and amortization, impairment of long-lived assets and taxes, other than income taxes.