CONSOLIDATED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Revenues:
Oil and gas production revenues	$ 94,275	$ 68,499	$ 64,615
Other	56	74	7
Total revenue	94,331	68,573	64,622
Operating costs and expenses:
Lease operating	25,361	24,806	21,581
Production taxes	8,510	6,613	5,766
Depreciation, depletion, and amortization	26,632	23,016	16,194
Impairment	6,025	19,774	0
General and administrative (including stock-based compensation of $1,987, $2,091 and $2,114, respectively)	12,876	10,712	9,433
Operating expenses	79,404	84,921	52,974
Operating income (loss)	14,927	(16,348)	11,648
Other (income) expense:
Interest income	(3)	(4)	(7)
Interest expense	4,580	5,520	4,898
Amortization of deferred financing fees	1,367	937	1,762
Gain on sale of properties	(33,377)	0	0
Loss on derivative contracts - realized	5,035	459	676
Gain on derivative contracts - unrealized	(2,561)	(2,669)	(7,476)
Earnings from equity method investment	0	(2,207)	(2,187)
Other	539	97	316
Total other (income) expense	(24,420)	2,133	(2,018)
Income (loss) before income tax	39,347	(18,481)	13,666
Income tax benefit (expense)	(700)	(310)	77
Net income (loss)	$ 38,647	$ (18,791)	$ 13,743
Net income (loss) - per common share - basic (in dollars per share)	$ 0.42	$ (0.20)	$ 0.15
Net income (loss) - per common share - diluted (in dollars per share)	$ 0.41	$ (0.20)	$ 0.15