CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues and other income:
Natural gas, NGLs and oil sales	$ 325,483	$ 572,017
Derivative fair value income (loss)	122,839	(146,850)
Loss on the sale of assets	(175)	(353)
Brokered natural gas, marketing and other	14,485	32,528
Total revenues and other income	462,632	457,342
Costs and expenses:
Direct operating	37,137	39,795
Transportation, gathering and compression	89,426	74,161
Production and ad valorem taxes	9,928	11,678
Brokered natural gas and marketing	21,562	34,129
Exploration	7,886	14,846
Abandonment and impairment of unproved properties	11,491	9,995
General and administrative	48,329	49,212
Termination costs	5,950
Deferred compensation plan	(5,624)	(2,035)
Interest	39,207	45,401
Depletion, depreciation and amortization	147,290	128,682
Total costs and expenses	412,582	405,864
Income before income taxes	50,050	51,478
Income tax expense:
Current		6
Deferred	22,366	18,951
Total income tax expense	22,366	18,957
Net income	$ 27,684	$ 32,521
Net income per common share:
Basic	$ 0.16	$ 0.20
Diluted	$ 0.16	$ 0.20
Dividends paid per common share	$ 0.04	$ 0.04
Weighted average common shares outstanding:
Basic	166,039	160,794
Diluted	166,066	161,825