Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Operations

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Condensed Consolidated Statements of Operations - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2017
Sep. 30, 2016
Sep. 30, 2017
Sep. 30, 2016
Income Statement [Abstract]        
Revenues $ 110,281 $ 107,403 $ 357,997 $ 284,773
Operating costs and expenses:        
Lease operating expenses 35,134 37,520 106,817 118,611
Production taxes 340 482 1,304 1,378
Gathering and transportation 4,108 5,161 15,635 16,651
Depreciation, depletion, amortization and accretion 36,489 51,500 116,843 172,726
Ceiling test write-down of oil and natural gas properties   57,912   279,063
General and administrative expenses 15,631 12,692 45,379 45,370
Derivative (gain) loss 2,879 412 (4,765) 2,861
Total costs and expenses 94,581 165,679 281,213 636,660
Operating income (loss) 15,700 (58,276) 76,784 (351,887)
Interest expense:        
Incurred 11,554 23,693 34,284 81,280
Capitalized   (75)   (520)
Gain on exchange of debt   123,960 7,811 123,960
Other (income) expense, net (41) (73) 5,073 1,209
Income (loss) before income tax expense (benefit) 4,187 42,139 45,238 (309,896)
Income tax expense (benefit) 5,484 (3,789) (11,079) (44,393)
Net income (loss) $ (1,297) $ 45,928 $ 56,317 $ (265,503)
Basic and diluted earnings (loss) per common share $ (0.01) $ 0.48 $ 0.39 $ (3.25)