CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Share data	3 Months Ended				9 Months Ended
	Sep. 30, 2011		Sep. 30, 2010		Sep. 30, 2011		Sep. 30, 2010
Operating Revenues:
Gas sales	$ 551,757		$ 483,886		$ 1,543,667		$ 1,378,873
Gas marketing	176,787		161,324		549,243		461,576
Oil sales	2,157		3,238		7,387		10,320
Gas gathering	36,541		33,715		107,961		87,303
Other	13		9		498		2,160
Total Operating Revenues	767,255		682,172		2,208,756		1,940,232
Operating Costs and Expenses:
Gas purchases - midstream services	175,236		158,095		545,518		457,555
Operating expenses	63,911		52,929		175,763		140,438
General and administrative expenses	35,600		35,158		112,955		104,735
Depreciation, depletion and amortization	179,113		151,284		514,180		434,307
Taxes, other than income taxes	17,677		14,570		49,429		38,654
Total operating costs and expenses	471,537		412,036		1,397,845		1,175,689
Operating Income	295,718		270,136		810,911		764,543
Interest Expense:
Interest on debt	16,696		14,574		48,380		42,702
Other interest charges	902		503		3,414		1,447
Interest capitalized	(11,941)		(8,488)		(32,531)		(24,872)
Total Interest Expense	5,657	[1]	6,589	[1]	19,263	[1]	19,277	[1]
Other income (loss), net	(122)		326		321		265
Income before income taxes	289,939		263,873		791,969		745,531
Provision for Income Taxes:
Current	3,491		(5,274)		3,691		(2,574)
Deferred	111,275		108,509		309,042		293,690
Total Provision for Income Taxes	114,766	[1]	103,235	[1]	312,733	[1]	291,116	[1]
Net income	175,173		160,638		479,236		454,415
Less: Net Loss Attributable to noncontrolling interest	0		(103)		0		(192)
Net income attributable to Southwestern Energy	$ 175,173		$ 160,741		$ 479,236		$ 454,607
Earnings Per Share:
Net Income Attributable to Southwestern Energy stockholders - Basic	$ 0.50		$ 0.47		$ 1.38		$ 1.32
Net income attributable to Southwestern Energy stockholders - Diluted	$ 0.50		$ 0.46		$ 1.37		$ 1.30
Weighted Average Common Shares Outstanding:
Basic	347,239,793		345,587,569		347,070,330		345,326,985
Diluted	349,998,789		349,228,576		349,891,885		349,308,957

[1] (1) Interest income, interest expense and the provision for income taxes by segment are allocated as they are incurred at the corporate level.