CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2014		Jun. 30, 2013		Jun. 30, 2014		Jun. 30, 2013
Net income	$ 171,389		$ 143,983		$ 203,910		$ 68,373
Other comprehensive income (loss):
Realized loss (gain) on hedge derivative contract settlements reclassified into natural gas, NGLs and oil sales from other comprehensive income, net of taxes							(14,840)	[1]
De-designated hedges reclassified into natural gas, NGLs and oil sales, net of taxes	(3,046)	[2]	(18,616)	[2]	(4,286)	[2]	(26,041)	[2]
De-designated hedges reclassified to derivative fair value income, net of taxes			(547)	[3]			(1,937)	[3]
Change in unrealized deferred hedging (losses) gains, net of taxes							(4,203)	[4]
Total comprehensive income	$ 168,343		$ 124,820		$ 199,624		$ 21,352

[1] Amounts are net of income tax benefit of $9,488 for the six months ended June 30, 2013.

[2] Amounts are net of income tax benefit of $1,866 for the three months ended June 30, 2014 and $2,790 for the six months ended June 30, 2014. Amounts are net of income tax benefit of $11,902 for the three months ended June 30, 2013 and $16,649 for the six months ended June 30, 2013.

[3] Amounts relate to transactions not probable of occurring and are presented net of income tax benefit of $350 for the three months ended June 30, 2013 and $1,239 for the six months ended June 30, 2013.

[4] Amounts are net of income tax benefit of $2,687 for the six months ended June 30, 2013.