Quarterly report pursuant to Section 13 or 15(d)

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

v3.2.0.727
Supplemental Guarantor Information - Condensed Consolidating Statement of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Dec. 31, 2014
Condensed Income Statements Captions [Line Items]          
Revenues $ 149,066 $ 262,994 $ 276,973 $ 517,510  
Operating costs and expenses:          
Lease operating expenses 45,130 61,765 98,461 117,384  
Production taxes 1,000 1,842 1,637 3,834  
Gathering and transportation 4,793 3,985 9,617 9,281  
Depreciation, depletion, amortization and accretion 103,342 128,236 228,809 251,542  
Ceiling test write-down of oil and natural gas properties 252,772 0 513,162 0 $ 0
General and administrative expenses 19,757 19,682 40,523 43,270  
Derivative loss 1,078 13,079 1,078 20,571  
Total costs and expenses 427,872 228,589 893,287 445,882  
Operating income (loss) (278,806) 34,405 (616,314) 71,628  
Interest expense:          
Incurred 26,116 21,454 49,062 42,912  
Capitalized (2,024) (2,159) (3,807) (4,231)  
Debt issuance costs write-off and other, net 1,685 0 1,683 0  
Income (loss) before income tax expense (benefit) (304,583) 15,110 (663,252) 32,947  
Income tax expense (benefit) (44,134) 5,273 (147,708) 11,921  
Net income (loss) (260,449) 9,837 (515,544) 21,026  
Parent Company          
Condensed Income Statements Captions [Line Items]          
Revenues 90,465 156,033 167,808 302,156  
Operating costs and expenses:          
Lease operating expenses 30,104 40,846 67,742 80,172  
Production taxes 1,000 1,842 1,637 3,834  
Gathering and transportation 2,769 2,232 5,334 5,580  
Depreciation, depletion, amortization and accretion 58,023 68,921 129,374 132,117  
Ceiling test write-down of oil and natural gas properties 181,300   371,995    
General and administrative expenses 10,856 10,269 22,615 21,850  
Derivative loss 1,078 13,079 1,078 20,571  
Total costs and expenses 285,130 137,189 599,775 264,124  
Operating income (loss) (194,665) 18,844 (431,967) 38,032  
Earnings (loss) of affiliates (54,548) 10,252 (119,552) 21,940  
Interest expense:          
Incurred 25,322 20,617 47,554 41,294  
Capitalized (1,230) (1,322) (2,299) (2,613)  
Debt issuance costs write-off and other, net 1,685   1,683    
Income (loss) before income tax expense (benefit) (274,990) 9,801 (598,457) 21,291  
Income tax expense (benefit) (14,541) (36) (82,913) 265  
Net income (loss) (260,449) 9,837 (515,544) 21,026  
Guarantor Subsidiaries          
Condensed Income Statements Captions [Line Items]          
Revenues 58,601 106,961 109,165 215,354  
Operating costs and expenses:          
Lease operating expenses 15,026 20,919 30,719 37,212  
Gathering and transportation 2,024 1,753 4,283 3,701  
Depreciation, depletion, amortization and accretion 45,319 59,315 99,435 119,425  
Ceiling test write-down of oil and natural gas properties 71,472   141,167    
General and administrative expenses 8,901 9,413 17,908 21,420  
Total costs and expenses 142,742 91,400 293,512 181,758  
Operating income (loss) (84,141) 15,561 (184,347) 33,596  
Interest expense:          
Incurred 794 837 1,508 1,618  
Capitalized (794) (837) (1,508) (1,618)  
Income (loss) before income tax expense (benefit) (84,141) 15,561 (184,347) 33,596  
Income tax expense (benefit) (29,593) 5,309 (64,795) 11,656  
Net income (loss) (54,548) 10,252 (119,552) 21,940  
Eliminations          
Operating costs and expenses:          
Earnings (loss) of affiliates 54,548 (10,252) 119,552 (21,940)  
Interest expense:          
Income (loss) before income tax expense (benefit) 54,548 (10,252) 119,552 (21,940)  
Net income (loss) $ 54,548 $ (10,252) $ 119,552 $ (21,940)