Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Revenues:
Oil and gas sales	$ 127,946	$ 143,123	$ 396,068	$ 446,537
Price-risk management and other, net	804	(591)	3,317	(2,499)
Total Revenues	128,750	142,532	399,385	444,038
Costs and Expenses:
General and administrative, net	11,952	11,378	36,025	32,687
Depreciation, depletion, and amortization	58,987	54,404	181,638	163,141
Accretion of asset retirement obligation	1,191	1,183	3,465	3,482
Lease operating cost	26,634	26,206	85,330	78,296
Severance and other taxes	10,680	13,527	35,840	39,223
Interest expense, net	13,762	8,439	40,546	25,449
Total Costs and Expenses	123,206	115,137	382,844	342,278
Income from Continuing Operations Before Income Taxes	5,544	27,395	16,541	101,760
Provision for Income Taxes	2,422	10,388	6,821	37,822
Income from Continuing Operations	3,122	17,007	9,720	63,938
Income from Discontinued Operations, net of taxes	0	(31)	0	14,247
Net Income	$ 3,122	$ 16,976	$ 9,720	$ 78,185
Per Share Amounts-
Basic: Income from Continuing Operations (in dollars per share)	$ 0.07	$ 0.39	$ 0.22	$ 1.48
Gain from Discontinued Operations, net of taxes (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.33
Net Income (in dollars per share)	$ 0.07	$ 0.39	$ 0.22	$ 1.81
Diluted: Income from Continuing Operations (in dollars per share)	$ 0.07	$ 0.39	$ 0.22	$ 1.47
Gain from Discontinued Operations, net of taxes (in dollars per share)	$ 0.00	$ 0.00	$ 0.00	$ 0.33
Net Income (in dollars per share)	$ 0.07	$ 0.39	$ 0.22	$ 1.80
Weighted Average Shares Outstanding - Basic	42,901	42,470	42,812	42,365