Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Net revenue:
Oil revenue, net	$ 83,464	$ 50,585	$ 122,708
Other revenue	433	144	250
Total net revenue	83,897	50,729	122,958
Operating and administrative expenses:
Lease operating expense	28,571	24,893	52,458
General and administrative expense	23,730	24,111	28,705
Geological, geophysical and engineering expense	3,773	2,184	43,787
Depreciation, depletion and amortization expense	23,221	27,214	45,873
Standby costs	0	4,311	5,340
Other operating expense	4,277	4,430	2,266
Asset impairments	58,000	0	0
Gain on divestiture			(26,864)
Total operating and administrative expenses	141,572	87,143	151,565
Operating loss	(57,675)	(36,414)	(28,607)
Other income (expense):
Income from investment in Ecuador property, net	217	152	62
Interest expense, net	(18,670)	(16,158)	(16,115)
Loss on extinguishment of debt	(1,245)	(7,222)	(7,318)
Gain (loss) on derivatives	2	242	(2,610)
Interest income	790	182	44
Other expense	(351)	(4,268)	(159)
Total other expense, net	(19,257)	(27,072)	(26,096)
Loss before income taxes	(76,932)	(63,486)	(54,703)
Income tax expense (benefit)	30,974	(5,775)	(15,614)
Net loss	$ (107,906)	$ (57,711)	$ (39,089)
Basic net loss per share (in Dollars per share)	$ (0.93)	$ (0.50)	$ (0.34)
Diluted net loss per share (in Dollars per share)	$ (0.93)	$ (0.50)	$ (0.34)
Basic weighted average common shares outstanding (in Shares)	116,311	115,943	115,631
Diluted weighted average common shares outstanding (in Shares)	116,311	115,943	115,631