Unaudited Condensed Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Revenues
Crude oil and natural gas sales	$ 1,138,460	$ 981,170	$ 3,223,605	$ 2,595,416
Crude oil and natural gas sales to affiliates	21,821	28,666	77,094	74,843
Gain (loss) on derivative instruments, net	473,999	(203,774)	171,801	(89,548)
Crude oil and natural gas service operations	11,048	8,825	31,418	29,876
Total revenues	1,645,328	814,887	3,503,918	2,610,587
Operating costs and expenses
Production expenses	95,700	66,790	255,911	201,250
Production and other expenses to affiliates	1,674	260	2,870	1,055
Production taxes and other expenses	97,399	84,334	272,726	223,718
Exploration expenses	13,514	8,173	29,532	29,138
Crude oil and natural gas service operations	4,337	6,654	18,390	22,567
Depreciation, depletion, amortization and accretion	363,677	244,721	963,409	695,189
Property impairments	85,561	42,167	223,085	161,960
General and administrative expenses	43,980	34,070	134,435	103,761
(Gain) loss on sale of assets, net	(5,411)	(325)	952	(112)
Total operating costs and expenses	700,431	486,844	1,901,310	1,438,526
Income from operations	944,897	328,043	1,602,608	1,172,061
Other income (expense):
Interest expense	(73,912)	(62,756)	(209,728)	(171,609)
Loss on Extinguishment of Debt	(24,517)	0	(24,517)	0
Other	393	584	1,945	1,765
Total other income (expense)	(98,036)	(62,172)	(232,300)	(169,844)
Income before income taxes	846,861	265,871	1,370,308	1,002,217
Provision for income taxes	313,340	98,373	507,015	370,822
Net income	$ 533,521	$ 167,498	$ 863,293	$ 631,395
Basic net income per share (in dollars per share)	$ 1.45	$ 0.45	$ 2.34	$ 1.72
Diluted net income per share (in dollars per share)	$ 1.44	$ 0.45	$ 2.33	$ 1.71