Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues
Oil and gas sales	$ 7,533	$ 6,031
Transportation revenue	979	1,238
Price risk management activities	(2,804)	5,772
Other income, net	5	4
Total revenues	5,713	13,045
Costs and expenses
Production costs	2,908	3,158
Production taxes	942	749
Exploration expenses including dry hole costs	24	510
Impairment and abandonment of equipment and properties	1,064	305
Pipeline operating costs	1,514	1,261
General and administrative	1,616	1,703
Depreciation, depletion and amortization	5,222	4,604
Total costs and expenses	13,290	12,290
Income (loss) from operations	(7,577)	755
Interest expense, net	(332)	(280)
Income (loss) before income taxes	(7,909)	475
Benefit (provision) for deferred income taxes	2,733	(147)
Net income (loss)	(5,176)	328
Preferred stock dividends	931	931
Net loss attributable to common stock	$ (6,107)	$ (603)
Net loss per common share:
Basic	$ (0.54)	$ (0.05)
Diluted	$ (0.54)	$ (0.05)
Weighted average shares outstanding:
Basic	11,305,881	11,228,752
Diluted	11,305,881	11,235,432