v3.8.0.1
Consolidated Statements of Operations - USD ($)
 12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
REVENUES:      
Oil, NGLs and gas sales $ 105,349,000 $ 90,302,000 $ 131,336,000
EXPENSES:      
Lease operating 17,902,000 19,250,000 28,972,000
Production and ad valorem taxes 8,644,000 8,217,000 11,085,000
Exploration 3,657,000 3,923,000 4,439,000
General and administrative [1] 24,333,000 24,734,000 28,341,000
Termination costs     1,436,000
Impairment of oil and gas properties 0 0 220,197,000
Depletion, depreciation and amortization 70,521,000 79,044,000 109,319,000
Total expenses 125,057,000 135,168,000 403,789,000
OPERATING LOSS (19,708,000) (44,866,000) (272,453,000)
OTHER:      
Interest expense, net (21,053,000) (27,259,000) (25,066,000)
Gain on debt extinguishment 5,053,000   10,563,000
Write-off of debt issuance costs   (563,000)  
Commodity derivative (loss) gain (262,000) (5,484,000) 19,275,000
Other income 32,000 1,511,000 172,000
LOSS BEFORE INCOME TAX PROVISON (BENEFIT) (35,938,000) (76,661,000) (267,509,000)
INCOME TAX PROVISON (BENEFIT):      
Current (66,000)   (265,000)
Deferred 76,487,000 (24,418,000) (93,140,000)
NET LOSS $ (112,359,000) $ (52,243,000) $ (174,104,000)
LOSS PER SHARE:      
Basic $ (1.35) $ (1.26) $ (4.30)
Diluted $ (1.35) $ (1.26) $ (4.30)
WEIGHTED AVERAGE SHARES OUTSTANDING:      
Basic 83,404,104 41,488,206 40,464,283
Diluted 83,404,104 41,488,206 40,464,283
[1] Includes non-cash share-based compensation expense as follows: