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
Oil and gas sales	$ 26,018	$ 23,117	$ 76,091	$ 65,688
Operating expenses
Lease operating expense and taxes	7,894	7,666	24,335	21,632
Depreciation, depletion and amortization	7,604	5,608	20,582	15,531
General and administrative	3,684	4,003	10,847	11,617
Total operating expenses	19,182	17,277	55,764	48,780
Income from operations	6,836	5,840	20,327	16,908
Other income (expense)
Interest and other income	27	97	62	225
Interest expense	(749)	(896)	(2,093)	(2,649)
Gain (loss) on derivative financial instruments	4,001	(746)	266	5,517
Total other income (expense)	3,279	(1,545)	(1,765)	3,093
Income before taxes	10,115	4,295	18,562	20,001
Deferred income tax benefit	(69)	(25)	(76)	(68)
Net income	10,184	4,320	18,638	20,069
Less dividends and accretion on preferred shares	3	3	8	16
Net income applicable to common stockholders	$ 10,181	$ 4,317	$ 18,630	$ 20,053
Earnings per share - Basic (in dollars per share)	$ 0.14	$ 0.06	$ 0.26	$ 0.29
Earnings per share - Diluted (in dollars per share)	$ 0.14	$ 0.06	$ 0.26	$ 0.28
Weighted average common shares outstanding - Basic (in shares)	70,877,106	70,463,901	70,812,083	70,305,292
Weighted average common shares outstanding - Diluted (in shares)	71,950,576	71,548,470	72,065,686	71,355,853