Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Net revenue:
Oil revenue, net	$ 12,776	$ 32,679	$ 26,057	$ 69,154
Other revenue	39	2	70	80
Total net revenue	12,815	32,681	26,127	69,234
Operating and administrative expenses:
Lease operating expense	8,102	12,694	14,775	24,062
General and administrative expense	6,451	9,347	11,926	15,547
Geological, geophysical and engineering expense	746	3,520	1,104	28,741
Depreciation, depletion and amortization expense	7,955	11,648	14,859	23,154
Standby costs	2,225	1,409	3,368	2,599
Other expense		756		756
Total operating and administrative expenses	25,479	39,374	46,032	94,859
Operating loss	(12,664)	(6,693)	(19,905)	(25,625)
Other income (expense):
Income (loss) from investment in Ecuador property, net	216	(47)	169	(94)
Interest expense, net	(4,280)	(4,080)	(8,578)	(10,290)
Loss on extinguishment of debt	(3,786)	(7,318)	(3,786)	(7,318)
Gain on derivatives	1,277	8,407	729	2,039
Interest income	38	7	47	10
Other expense	(818)	(198)	(1,147)	(245)
Total other expense, net	(7,353)	(3,229)	(12,566)	(15,898)
Loss before income taxes	(20,017)	(9,922)	(32,471)	(41,523)
Income tax benefit	(377)	(1,422)	(47)	(5,732)
Net loss	$ (19,640)	$ (8,500)	$ (32,424)	$ (35,791)
Basic net loss per share (in Dollars per share)	$ (0.17)	$ (0.07)	$ (0.28)	$ (0.31)
Diluted net loss per share (in Dollars per share)	$ (0.17)	$ (0.07)	$ (0.28)	$ (0.31)
Basic weighted average common shares outstanding (in Shares)	115,935	115,573	115,862	115,543
Diluted weighted average common shares outstanding (in Shares)	115,935	115,573	115,862	115,543