CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Revenues and other income:
Natural gas, NGLs and oil sales	$ 252,065	$ 446,067	$ 835,601	$ 1,495,601
Derivative fair value income (loss)	202,004	142,057	290,052	(28,902)
(Loss) gain on the sale of assets	(681)	167	2,053	281,878
Brokered natural gas, marketing and other	25,864	28,324	61,688	90,904
Total revenues and other income	479,252	616,615	1,189,394	1,839,481
Costs and expenses:
Direct operating	35,058	37,792	106,975	112,522
Transportation, gathering and compression	99,634	84,777	284,258	235,747
Production and ad valorem taxes	7,336	10,110	26,506	32,632
Brokered natural gas and marketing	32,331	28,706	80,924	97,610
Exploration	4,235	11,443	17,146	39,910
Abandonment and impairment of unproved properties	12,366	13,444	36,187	32,771
General and administrative	46,178	54,963	150,471	161,063
Termination costs	(77)	0	6,290	0
Deferred compensation plan	(43,705)	(46,198)	(56,611)	(37,714)
Interest	42,904	39,188	125,590	130,077
Loss on early extinguishment of debt	22,495	0	22,495	24,596
Depletion, depreciation and amortization	153,993	142,450	453,178	404,493
Impairment of proved properties and other assets	502,233	0	502,233	24,991
Total costs and expenses	914,981	376,675	1,755,642	1,258,698
(Loss) income before income taxes	(435,729)	239,940	(566,248)	580,783
Income tax (benefit) expense:
Current	0	0	0	5
Deferred	(134,781)	93,522	(174,390)	230,450
Total income tax expense (benefit)	(134,781)	93,522	(174,390)	230,455
Net (loss) income	$ (300,948)	$ 146,418	$ (391,858)	$ 350,328
Net (loss) income per common share:
Basic	$ (1.81)	$ 0.87	$ (2.36)	$ 2.11
Diluted	(1.81)	0.86	(2.36)	2.10
Dividends paid per common share	$ 0.04	$ 0.04	$ 0.12	$ 0.12
Weighted average common shares outstanding:
Basic	166,517	165,841	166,327	162,866
Diluted	166,517	166,460	166,327	163,685