Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Revenues:
Oil and gas sales	$ 33,376	$ 41,920	$ 69,373	$ 83,466
Gas gathering revenue	37	55	81	112
Total revenues	33,413	41,975	69,454	83,578
Expenses:
Lease operating expenses	9,085	10,206	18,750	19,709
Production taxes	(1,917)	(538)	(768)	624
Depreciation, depletion and amortization	15,762	14,657	30,992	28,719
Ceiling test write-downs	53,485	12,973	73,596	18,907
General and administrative	5,999	4,280	11,578	8,678
Accretion of asset retirement obligation	517	427	1,017	1,179
Interest expense	2,413	2,255	4,683	4,949
Total expenses	85,344	44,260	139,848	82,765
Other income (expense):
Other income	123	197	272	277
Derivative expense	(375)		(375)
Other operating income (expense), net	(252)	197	(103)	277
Income (loss) from operations	(52,183)	(2,088)	(70,497)	1,090
Income tax expense (benefit)	1,049	(330)	61	(329)
Net income (loss)	(53,232)	(1,758)	(70,558)	1,419
Preferred stock dividend	1,288	1,287	2,570	2,567
Net loss available to common stockholders	$ (54,520)	$ (3,045)	$ (73,128)	$ (1,148)
Basic
Net loss per share	$ (0.87)	$ (0.05)	$ (1.17)	$ (0.02)
Diluted
Net loss per share	$ (0.87)	$ (0.05)	$ (1.17)	$ (0.02)
Weighted average number of common shares:
Basic	62,363	61,917	62,289	61,793
Diluted	62,363	61,917	62,289	61,793