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
Mar. 31, 2017
Dec. 31, 2016
Mar. 31, 2016
Dec. 31, 2015
Current assets:        
Cash and cash equivalents $ 126,095 $ 70,236 $ 370,623 $ 85,414
Receivables:        
Oil and natural gas sales 44,954 43,073    
Joint interest 16,843 21,885    
Insurance reimbursement   30,100    
Income taxes 11,943 11,943    
Total receivables 73,740 107,001    
Prepaid expenses and other assets 17,135 14,504    
Total current assets 216,970 191,741    
Oil and natural gas properties and other, net 538,114 547,053    
Restricted deposits for asset retirement obligations 28,224 27,371    
Income tax receivables 59,789 52,097    
Other assets 11,403 11,464    
Total assets 854,500 829,726    
Current liabilities:        
Accounts payable 81,398 81,039    
Undistributed oil and natural gas proceeds 22,366 26,254    
Asset retirement obligations 66,150 78,264    
Accrued liabilities 20,536 9,200    
Long-term debt 8,250 8,272    
Total current liabilities 198,700 203,029    
Long-term debt:        
Principal 873,733 873,733    
Carrying value adjustments 137,001 138,722    
Long term debt, less current portion - carrying value 1,010,734 1,012,455    
Asset retirement obligations, less current portion 260,650 256,174    
Other liabilities 17,226 17,105    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 541,901 539,973    
Retained earnings (deficit) (1,150,545) (1,174,844)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (632,810) (659,037)    
Total liabilities and shareholders’ equity (deficit) 854,500 829,726    
Parent Company        
Current assets:        
Cash and cash equivalents 126,095 70,236 $ 370,623 $ 85,414
Receivables:        
Oil and natural gas sales 4,177 2,173    
Joint interest 16,843 21,885    
Insurance reimbursement   30,100    
Income taxes 116,699 111,215    
Total receivables 137,719 165,373    
Prepaid expenses and other assets 14,034 12,448    
Total current assets 277,848 248,057    
Oil and natural gas properties and other, net 367,782 360,966    
Restricted deposits for asset retirement obligations 28,224 27,371    
Income tax receivables 59,789 52,097    
Other assets 412,398 394,931    
Total assets 1,146,041 1,083,422    
Current liabilities:        
Accounts payable 74,328 74,306    
Undistributed oil and natural gas proceeds 20,448 24,493    
Asset retirement obligations 49,788 62,261    
Accrued liabilities 20,663 9,293    
Long-term debt 8,250 8,272    
Total current liabilities 173,477 178,625    
Long-term debt:        
Principal 873,733 873,733    
Carrying value adjustments 137,001 138,722    
Long term debt, less current portion - carrying value 1,010,734 1,012,455    
Asset retirement obligations, less current portion 143,434 142,376    
Other liabilities 449,521 408,050    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 541,901 539,973    
Retained earnings (deficit) (1,148,860) (1,173,891)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (631,125) (658,084)    
Total liabilities and shareholders’ equity (deficit) 1,146,041 1,083,422    
Guarantor Subsidiaries        
Receivables:        
Oil and natural gas sales 40,777 40,900    
Total receivables 40,777 40,900    
Prepaid expenses and other assets 3,101 2,056    
Total current assets 43,878 42,956    
Oil and natural gas properties and other, net 172,017 187,040    
Other assets 386,092 344,742    
Total assets 601,987 574,738    
Current liabilities:        
Accounts payable 7,070 6,733    
Undistributed oil and natural gas proceeds 1,918 1,761    
Asset retirement obligations 16,362 16,003    
Accrued liabilities 104,629 99,179    
Total current liabilities 129,979 123,676    
Long-term debt:        
Asset retirement obligations, less current portion 117,216 113,798    
Shareholders’ deficit:        
Additional paid-in capital 704,885 704,885    
Retained earnings (deficit) (350,093) (367,621)    
Total shareholders’ equity (deficit) 354,792 337,264    
Total liabilities and shareholders’ equity (deficit) 601,987 574,738    
Eliminations        
Receivables:        
Income taxes (104,756) (99,272)    
Total receivables (104,756) (99,272)    
Total current assets (104,756) (99,272)    
Oil and natural gas properties and other, net (1,685) (953)    
Other assets (787,087) (728,209)    
Total assets (893,528) (828,434)    
Current liabilities:        
Accrued liabilities (104,756) (99,272)    
Total current liabilities (104,756) (99,272)    
Long-term debt:        
Other liabilities (432,295) (390,945)    
Shareholders’ deficit:        
Additional paid-in capital (704,885) (704,885)    
Retained earnings (deficit) 348,408 366,668    
Total shareholders’ equity (deficit) (356,477) (338,217)    
Total liabilities and shareholders’ equity (deficit) $ (893,528) $ (828,434)