Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details)

v3.8.0.1
Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($)
$ in Thousands
Sep. 30, 2017
Dec. 31, 2016
Sep. 30, 2016
Dec. 31, 2015
Current assets:        
Cash and cash equivalents $ 106,164 $ 70,236 $ 73,351 $ 85,414
Receivables:        
Oil and natural gas sales 39,165 43,073    
Joint interest 21,877 21,885    
Insurance reimbursement   30,100    
Income taxes 11,623 11,943    
Total receivables 72,665 107,001    
Prepaid expenses and other assets 15,073 14,504    
Total current assets 193,902 191,741    
Oil and natural gas properties and other, net 555,254 547,053    
Restricted deposits for asset retirement obligations 25,339 27,371    
Income tax receivables 52,097 52,097    
Other assets 60,779 11,464    
Total assets 887,371 829,726    
Current liabilities:        
Accounts payable 72,197 81,039    
Undistributed oil and natural gas proceeds 20,084 26,254    
Asset retirement obligations 29,456 78,264    
Long-term debt 11,147 8,272    
Accrued liabilities 26,550 9,200    
Total current liabilities 159,434 203,029    
Long-term debt:        
Principal 873,733 873,733    
Carrying value adjustments 108,884 138,722    
Long term debt, less current portion - carrying value 982,617 1,012,455    
Asset retirement obligations, less current portion 275,560 256,174    
Other liabilities 67,031 17,105    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 545,422 539,973    
Retained earnings (deficit) (1,118,527) (1,174,844)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (597,271) (659,037)    
Total liabilities and shareholders’ equity (deficit) 887,371 829,726    
Parent Company        
Current assets:        
Cash and cash equivalents 106,164 70,236 $ 73,351 $ 85,414
Receivables:        
Oil and natural gas sales 4,866 2,173    
Joint interest 21,877 21,885    
Insurance reimbursement   30,100    
Income taxes 120,402 111,215    
Total receivables 147,145 165,373    
Prepaid expenses and other assets 13,884 12,448    
Total current assets 267,193 248,057    
Oil and natural gas properties and other, net 402,385 360,966    
Restricted deposits for asset retirement obligations 25,339 27,371    
Income tax receivables 52,097 52,097    
Other assets 493,965 394,931    
Total assets 1,240,979 1,083,422    
Current liabilities:        
Accounts payable 65,581 74,306    
Undistributed oil and natural gas proceeds 18,582 24,493    
Asset retirement obligations 27,613 62,261    
Long-term debt 11,147 8,272    
Accrued liabilities 26,572 9,293    
Total current liabilities 149,495 178,625    
Long-term debt:        
Principal 873,733 873,733    
Carrying value adjustments 108,884 138,722    
Long term debt, less current portion - carrying value 982,617 1,012,455    
Asset retirement obligations, less current portion 148,468 142,376    
Other liabilities 554,366 408,050    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 545,422 539,973    
Retained earnings (deficit) (1,115,223) (1,173,891)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (593,967) (658,084)    
Total liabilities and shareholders’ equity (deficit) 1,240,979 1,083,422    
Guarantor Subsidiaries        
Receivables:        
Oil and natural gas sales 34,299 40,900    
Total receivables 34,299 40,900    
Prepaid expenses and other assets 1,189 2,056    
Total current assets 35,488 42,956    
Oil and natural gas properties and other, net 156,172 187,040    
Other assets 441,133 344,742    
Total assets 632,793 574,738    
Current liabilities:        
Accounts payable 6,616 6,733    
Undistributed oil and natural gas proceeds 1,502 1,761    
Asset retirement obligations 1,843 16,003    
Accrued liabilities 108,757 99,179    
Total current liabilities 118,718 123,676    
Long-term debt:        
Asset retirement obligations, less current portion 127,092 113,798    
Shareholders’ deficit:        
Additional paid-in capital 704,885 704,885    
Retained earnings (deficit) (317,902) (367,621)    
Total shareholders’ equity (deficit) 386,983 337,264    
Total liabilities and shareholders’ equity (deficit) 632,793 574,738    
Eliminations        
Receivables:        
Income taxes (108,779) (99,272)    
Total receivables (108,779) (99,272)    
Total current assets (108,779) (99,272)    
Oil and natural gas properties and other, net (3,303) (953)    
Other assets (874,319) (728,209)    
Total assets (986,401) (828,434)    
Current liabilities:        
Accrued liabilities (108,779) (99,272)    
Total current liabilities (108,779) (99,272)    
Long-term debt:        
Other liabilities (487,335) (390,945)    
Shareholders’ deficit:        
Additional paid-in capital (704,885) (704,885)    
Retained earnings (deficit) 314,598 366,668    
Total shareholders’ equity (deficit) (390,287) (338,217)    
Total liabilities and shareholders’ equity (deficit) $ (986,401) $ (828,434)