CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues
Crude oil	$ 63,058	$ 58,723
Natural gas liquids (NGLs)	7,127	9,071
Natural gas	12,039	14,886
(Loss) gain on sales of property and equipment, net	(549)	756
Other	1,523	975
Total revenues	83,198	84,411
Operating expenses
Lease operating	7,805	9,143
Gathering, processing and transportation	3,579	4,154
Production and ad valorem taxes	5,959	3,580
General and administrative	10,943	12,141
Exploration	6,295	7,998
Depreciation, depletion and amortization	51,576	50,817
Total operating expenses	86,157	87,833
Operating loss	(2,959)	(3,422)
Other income (expense)
Interest expense	(14,479)	(14,774)
Derivatives	(7,761)	(305)
Other	27	1
Loss from operations before income taxes	(25,172)	(18,500)
Income tax benefit	8,789	6,601
Net loss	(16,383)	(11,899)
Preferred stock dividends	(1,725)	0
Loss attributable to common shareholders - Basic and Diluted	$ (18,108)	$ (11,899)
Loss per share:
Basic (in dollars per share)	$ (0.33)	$ (0.26)
Diluted (in dollars per share)	$ (0.33)	$ (0.26)
Weighted average shares outstanding - basic	55,341	45,945
Weighted average shares outstanding - diluted	55,341	45,945