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CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
REVENUES      
Oil and gas sales $ 160,331 $ 217,485 $ 418,330
Midstream services 5,688 6,122 6,705
Drilling rig services 0 23 28,028
Other operating revenues 123,392 8,742 15,393
Total revenues 289,411 232,372 468,456
COSTS AND EXPENSES      
Production 70,920 87,557 105,296
Exploration:      
Abandonments and impairments 3,536 6,509 20,647
Seismic and other 925 1,318 2,314
Midstream services 2,173 1,688 2,212
Drilling rig services 3,938 5,238 19,232
Depreciation, depletion and amortization 145,614 162,262 154,356
Impairment of property and equipment 7,593 41,917 12,027
Accretion of asset retirement obligations 4,364 3,945 3,662
General and administrative 22,988 22,788 34,524
Other operating expenses 5,046 12,585 2,547
Total costs and expenses 267,097 345,807 356,817
Operating income (loss) 22,314 (113,435) 111,639
OTHER INCOME (EXPENSE)      
Interest expense (93,693) (54,422) (50,907)
Gain on early extinguishment of long-term debt 3,967 0 0
Loss on change in fair value of common stock warrants (229,980) 0 0
Gain (loss) on commodity derivatives (20,289) 12,519 4,789
Impairment of investments and other (4,797) 2,003 3,047
Total other income (expense) (344,792) (39,900) (43,071)
Income (loss) before income taxes (322,478) (153,335) 68,568
Income tax (expense) benefit 30,327 55,139 (24,687)
NET INCOME (LOSS) $ (292,151) $ (98,196) $ 43,881
Net income (loss) per common share:      
Basic (in dollars per share) $ (20.87) $ (8.07) $ 3.61
Diluted (in dollars per share) $ (20.87) $ (8.07) $ 3.61
Weighted average common shares outstanding:      
Basic (in shares) 14,000 12,170 12,167
Diluted (in shares) 14,000 12,170 12,167