Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Operating revenues
Oil and gas sales	$ 46,499	$ 99,707	$ 156,955	$ 303,370
Other revenues	653	639	2,210	1,610
Total operating revenues	47,152	100,346	159,165	304,980
Operating costs and expenses
Lease operating	8,872	11,183	32,930	30,306
Production and ad valorem taxes	2,513	5,044	9,292	18,248
Exploration	5,556	266	6,184	3,278
Depletion, depreciation and amortization	52,766	50,491	156,151	137,490
Accretion of ARO liability	210	206	610	573
General and administrative	9,628	6,925	27,572	18,723
Other operating			4,188
Total operating expenses	79,545	74,115	236,927	208,618
Operating income (loss)	(32,393)	26,231	(77,762)	96,362
Other income (expense)
Interest expense	(16,722)	(11,849)	(47,553)	(34,659)
Net gain (loss) on commodity derivatives	90,483	41,163	111,714	(9,785)
Other income (expense)	(7)	30	(1,631)	97
Other income (expense), net	73,754	29,344	62,530	(44,347)
Income (loss) before income tax	41,361	55,575	(15,232)	52,015
Income tax provision (benefit)	6,519	5,550	(4,590)	5,736
Net income (loss)	34,842	50,025	(10,642)	46,279
Net income (loss) attributable to non-controlling interests	21,604	40,893	(7,625)	37,835
Net income (loss) attributable to controlling interests	$ 13,238	$ 9,132	$ (3,017)	$ 8,444
Earnings (loss) per share:
Basic (in dollars per share)	$ 0.44	$ 0.73	$ (0.12)	$ 0.68
Diluted (in dollars per share)	$ 0.44	$ 0.73	$ (0.12)	$ 0.68
Weighted average shares outstanding:
Basic	30,432	12,508	25,591	12,503
Diluted	30,432	12,573	25,591	12,540