Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Statement of Operations (Details)

v3.7.0.1
Supplemental Guarantor Information - Condensed Consolidating Statement of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Condensed Income Statements Captions [Line Items]        
Revenues $ 123,323 $ 99,655 $ 247,716 $ 177,370
Operating costs and expenses:        
Lease operating expenses 31,519 36,622 71,683 81,091
Production taxes 449 370 964 896
Gathering and transportation 5,318 6,398 11,527 11,490
Depreciation, depletion, amortization and accretion 40,364 57,493 80,354 121,226
Ceiling test write-down of oil and natural gas properties   104,592   221,151
General and administrative expenses 16,474 16,235 29,748 32,678
Derivative (gain) loss (3,689) 4,942 (7,644) 2,449
Total costs and expenses 90,435 226,652 186,632 470,981
Operating income (loss) 32,888 (126,997) 61,084 (293,611)
Interest expense:        
Incurred 11,436 29,773 22,730 57,587
Capitalized   (102)   (445)
Gain on exchange of debt 8,056   7,811  
Other expense, net 5,168 (24) 5,114 1,282
Income (loss) before income tax benefit 24,340 (156,644) 41,051 (352,035)
Income tax benefit (8,975) (35,722) (16,563) (40,604)
Net income (loss) 33,315 (120,922) 57,614 (311,431)
Parent Company        
Condensed Income Statements Captions [Line Items]        
Revenues 57,417 43,914 111,124 74,426
Operating costs and expenses:        
Lease operating expenses 17,325 19,254 41,027 44,199
Production taxes 449 370 964 896
Gathering and transportation 2,578 2,469 5,144 4,022
Depreciation, depletion, amortization and accretion 21,433 22,648 40,587 43,271
General and administrative expenses 7,662 7,360 13,438 13,973
Derivative (gain) loss (3,689) 4,942 (7,644) 2,449
Total costs and expenses 45,758 57,043 93,516 108,810
Operating income (loss) 11,659 (13,129) 17,608 (34,384)
Earnings (loss) of affiliates 18,941 (40,765) 36,468 (113,794)
Interest expense:        
Incurred 11,436 29,735 22,730 57,430
Capitalized   (64)   (288)
Gain on exchange of debt 8,056   7,811  
Other expense, net 5,168 (24) 5,114 1,282
Income (loss) before income tax benefit 22,052 (83,541) 34,043 (206,602)
Income tax benefit (12,051) (35,114) (25,090) (38,790)
Net income (loss) 34,103 (48,427) 59,133 (167,812)
Guarantor Subsidiaries        
Condensed Income Statements Captions [Line Items]        
Revenues 65,906 55,741 136,592 102,944
Operating costs and expenses:        
Lease operating expenses 14,194 17,368 30,656 36,892
Gathering and transportation 2,740 3,929 6,383 7,468
Depreciation, depletion, amortization and accretion 18,143 31,934 38,248 70,095
Ceiling test write-down of oil and natural gas properties   35,008   85,392
General and administrative expenses 8,812 8,875 16,310 18,705
Total costs and expenses 43,889 97,114 91,597 218,552
Operating income (loss) 22,017 (41,373) 44,995 (115,608)
Interest expense:        
Incurred   38   157
Capitalized   (38)   (157)
Income (loss) before income tax benefit 22,017 (41,373) 44,995 (115,608)
Income tax benefit 3,076 (608) 8,527 (1,814)
Net income (loss) 18,941 (40,765) 36,468 (113,794)
Eliminations        
Operating costs and expenses:        
Depreciation, depletion, amortization and accretion 788 2,911 1,519 7,860
Ceiling test write-down of oil and natural gas properties   69,584   135,759
Total costs and expenses 788 72,495 1,519 143,619
Operating income (loss) (788) (72,495) (1,519) (143,619)
Earnings (loss) of affiliates (18,941) 40,765 (36,468) 113,794
Interest expense:        
Income (loss) before income tax benefit (19,729) (31,730) (37,987) (29,825)
Net income (loss) $ (19,729) $ (31,730) $ (37,987) $ (29,825)