Business Segments (Tables)

6 Months Ended

Jun. 30, 2016

Segment Reporting [Abstract]

Schedule of Segment Reporting Information

The following tables present our segment information:

	Three Months Ended June 30,						Six Months Ended June 30,
	2016			2015			2016			2015
	(in thousands)
Segment revenues:
Oil and gas exploration and production	$	18,218		$	48,437		$	106,878		$	189,836
Gas marketing	1,879			2,523			4,050			5,756
Total revenues	$	20,097		$	50,960		$	110,928		$	195,592
Segment income (loss) before income taxes:
Oil and gas exploration and production	$	(118,508	)	$	(44,364	)	$	(152,541	)	$	16,161
Gas marketing	(246		)	(313		)	(653		)	(338		)
Unallocated	(35,023		)	(32,309		)	(113,952		)	(65,024		)
Loss before income taxes	$	(153,777	)	$	(76,986	)	$	(267,146	)	$	(49,201	)

	June 30, 2016		December 31, 2015
	(in thousands)
Segment assets:
Oil and gas exploration and production	$	2,244,799	$	2,294,288
Gas marketing	4,117		4,217
Unallocated	22,754		72,038
Total assets	$	2,271,670	$	2,370,543