Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details)

v3.7.0.1
Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Jun. 30, 2016
Dec. 31, 2015
Current assets:        
Cash and cash equivalents $ 72,320 $ 70,236 $ 171,824 $ 85,414
Receivables:        
Oil and natural gas sales 39,397 43,073    
Joint interest 19,920 21,885    
Insurance reimbursement   30,100    
Income taxes 12,027 11,943    
Total receivables 71,344 107,001    
Prepaid expenses and other assets 21,944 14,504    
Total current assets 165,608 191,741    
Oil and natural gas properties and other, net 550,681 547,053    
Restricted deposits for asset retirement obligations 28,712 27,371    
Income tax receivables 68,974 52,097    
Other assets 60,996 11,464    
Total assets 874,971 829,726    
Current liabilities:        
Accounts payable 58,283 81,039    
Undistributed oil and natural gas proceeds 21,270 26,254    
Asset retirement obligations 52,432 78,264    
Long-term debt 11,147 8,272    
Accrued liabilities 13,122 9,200    
Total current liabilities 156,254 203,029    
Long-term debt:        
Principal 873,733 873,733    
Carrying value adjustments 110,604 138,722    
Long term debt, less current portion - carrying value 984,337 1,012,455    
Asset retirement obligations, less current portion 265,428 256,174    
Other liabilities 66,909 17,105    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 543,439 539,973    
Retained earnings (deficit) (1,117,230) (1,174,844)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (597,957) (659,037)    
Total liabilities and shareholders’ equity (deficit) 874,971 829,726    
Parent Company        
Current assets:        
Cash and cash equivalents 72,320 70,236 $ 171,824 $ 85,414
Receivables:        
Oil and natural gas sales 3,268 2,173    
Joint interest 19,920 21,885    
Insurance reimbursement   30,100    
Income taxes 119,732 111,215    
Total receivables 142,920 165,373    
Prepaid expenses and other assets 19,480 12,448    
Total current assets 234,720 248,057    
Oil and natural gas properties and other, net 392,445 360,966    
Restricted deposits for asset retirement obligations 28,712 27,371    
Income tax receivables 68,974 52,097    
Other assets 481,201 394,931    
Total assets 1,206,052 1,083,422    
Current liabilities:        
Accounts payable 51,932 74,306    
Undistributed oil and natural gas proceeds 19,626 24,493    
Asset retirement obligations 44,776 62,261    
Long-term debt 11,147 8,272    
Accrued liabilities 13,122 9,293    
Total current liabilities 140,603 178,625    
Long-term debt:        
Principal 873,733 873,733    
Carrying value adjustments 110,604 138,722    
Long term debt, less current portion - carrying value 984,337 1,012,455    
Asset retirement obligations, less current portion 144,292 142,376    
Other liabilities 532,305 408,050    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 543,439 539,973    
Retained earnings (deficit) (1,114,758) (1,173,891)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (595,485) (658,084)    
Total liabilities and shareholders’ equity (deficit) 1,206,052 1,083,422    
Guarantor Subsidiaries        
Receivables:        
Oil and natural gas sales 36,129 40,900    
Total receivables 36,129 40,900    
Prepaid expenses and other assets 2,464 2,056    
Total current assets 38,593 42,956    
Oil and natural gas properties and other, net 160,708 187,040    
Other assets 418,924 344,742    
Total assets 618,225 574,738    
Current liabilities:        
Accounts payable 6,351 6,733    
Undistributed oil and natural gas proceeds 1,644 1,761    
Asset retirement obligations 7,656 16,003    
Accrued liabilities 107,705 99,179    
Total current liabilities 123,356 123,676    
Long-term debt:        
Asset retirement obligations, less current portion 121,136 113,798    
Shareholders’ deficit:        
Additional paid-in capital 704,885 704,885    
Retained earnings (deficit) (331,152) (367,621)    
Total shareholders’ equity (deficit) 373,733 337,264    
Total liabilities and shareholders’ equity (deficit) 618,225 574,738    
Eliminations        
Receivables:        
Income taxes (107,705) (99,272)    
Total receivables (107,705) (99,272)    
Total current assets (107,705) (99,272)    
Oil and natural gas properties and other, net (2,472) (953)    
Other assets (839,129) (728,209)    
Total assets (949,306) (828,434)    
Current liabilities:        
Accrued liabilities (107,705) (99,272)    
Total current liabilities (107,705) (99,272)    
Long-term debt:        
Other liabilities (465,396) (390,945)    
Shareholders’ deficit:        
Additional paid-in capital (704,885) (704,885)    
Retained earnings (deficit) 328,680 366,668    
Total shareholders’ equity (deficit) (376,205) (338,217)    
Total liabilities and shareholders’ equity (deficit) $ (949,306) $ (828,434)