Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011		Jun. 30, 2010
Revenues:
Oil and gas sales	$ 159,213	$ 105,051	$ 303,414		$ 215,076
Price-risk management and other, net	(1,785)	1,849	(1,908)		1,670
Total Revenues	157,428	106,900	301,506		216,746
Costs and Expenses:
General and administrative, net	10,866	8,037	21,309		17,288
Depreciation, depletion, and amortization	55,816	39,029	108,737		77,303
Accretion of asset retirement obligation	1,163	975	2,299		1,929
Lease operating cost	26,706	19,936	52,090		38,584
Severance and other taxes	12,383	11,641	25,696		23,213
Interest expense, net	8,622	8,214	17,010		16,540
Total Costs and Expenses	115,556	87,832	227,141		174,857
Income from Continuing Operations Before Income Taxes	41,872	19,068	74,365		41,889
Provision for Income Taxes	15,190	6,555	27,434		15,136
Income from Continuing Operations	26,682	12,513	46,931		26,753
Income (loss) from Discontinued Operations, net of taxes	14,346	(54)	14,278		(89)
Net Income	$ 41,028	$ 12,459	$ 61,209	[1]	$ 26,664
Per Share Amounts-
Basic: Income from Continuing Operations	$ 0.62	$ 0.32	$ 1.09		$ 0.70
Income (loss) from Discontinued Operations, net of taxes	$ 0.33	$ 0.00	$ 0.33		$ 0.00
Net Income	$ 0.95	$ 0.32	$ 1.42		$ 0.69
Diluted: Income from Continuing Operations	$ 0.61	$ 0.32	$ 1.08		$ 0.69
Income (loss) from Discontinued Operations, net of taxes	$ 0.33	$ 0.00	$ 0.33		$ 0.00
Net Income	$ 0.95	$ 0.32	$ 1.41		$ 0.69
Weighted Average Shares Outstanding - Basic	42,436	37,845	42,313		37,749

[1] [2] Unaudited