CONSOLIDATED STATEMENTS OF OPERATIONS (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	$ 105,804	$ 76,918	$ 200,736	$ 155,960
Natural gas services	365	452	774	955
Drilling rig services	2,425		2,685
Gain on sales of assets	949	113	14,521	399
Total revenues	109,543	77,483	218,716	157,314
COSTS AND EXPENSES
Production	26,133	20,567	50,953	41,494
Exploration:
Abandonments and impairments	174	2,891	1,051	5,769
Seismic and other	2,167	974	3,445	2,634
Natural gas services	285	306	548	654
Drilling rig services	1,919	419	2,705	1,081
Depreciation, depletion and amortization	25,342	25,437	49,086	51,049
Impairment of property and equipment	4,424	11,114	4,424	11,114
Accretion of abandonment obligations	697	647	1,371	1,294
General and administrative	3,037	7,832	15,536	14,056
Loss on sales of assets and impairment of inventory	107	1,443	303	1,443
Total costs and expenses	64,285	71,630	129,422	130,588
Operating income	45,258	5,853	89,294	26,726
OTHER INCOME (EXPENSE)
Interest expense	(9,175)	(6,244)	(15,587)	(12,353)
Loss on early extinguishment of long-term debt			(4,594)
Gain (loss) on derivatives	28,187	20,983	(18,158)	31,284
Other	1,900	1,016	2,987	1,844
Total other income (expense)	20,912	15,755	(35,352)	20,775
Income before income taxes	66,170	21,608	53,942	47,501
Income tax expense	(23,502)	(7,645)	(19,149)	(16,863)
NET INCOME	$ 42,668	$ 13,963	$ 34,793	$ 30,638
Net income per common share:
Basic (in dollars per share)	$ 3.51	$ 1.15	$ 2.86	$ 2.52
Diluted (in dollars per share)	$ 3.51	$ 1.15	$ 2.86	$ 2.52
Weighted average common shares outstanding:
Basic (in shares)	12,162	12,146	12,159	12,146
Diluted (in shares)	12,163	12,146	12,159	12,146