CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Operating Revenues
Oil and gas sales	$ 83,734	$ 145,385
Transportation revenue	4,639	5,338
Total revenues	88,373	150,723
Operating Expenses
Lease operating expenses and taxes	49,557	48,357
Depreciation, depletion and amortization	66,159	56,489
Impairment expense	578,323
Transportation expenses	1,706	2,403
Acquisition expenses		4,198
General and administrative	17,703	15,271
Total operating expenses	713,448	126,718
Income (loss) from operations	(625,075)	24,005
Other income (expense)
Interest and other income	5,621	2,396
Gain on debt extinguishment	14,407
Troubled debt restructuring expense	(4,039)
Interest expense	(30,403)	(9,643)
Gain on derivative financial instruments	20,083	7,445
Loss on contingent consideration	(540)	(190)
Total other income (expense)	5,129	8
Income (loss) before provision for income taxes	(619,946)	24,013
Deferred income tax (benefit) expense	17	(17)
Net income (loss)	(619,963)	24,030
Less dividends and accretion on preferred shares	10	10
Net income (loss) applicable to common stockholders	$ (619,973)	$ 24,020
Income (loss) per common share-Basic (in dollars per share)	$ (7.55)	$ 0.31
Income (loss) per common share-Diluted (in dollars per share)	$ (7.55)	$ 0.31
Weighted average common shares outstanding-Basic	82,128,892	76,541,400
Weighted average common shares outstanding-Diluted	82,128,892	76,685,511