Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details)

v3.10.0.1
Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Current assets:    
Cash and cash equivalents $ 129,440 $ 99,058
Receivables:    
Oil and natural gas sales 52,073 45,443
Joint interest 19,366 19,754
Income taxes 65,240 13,006
Total receivables 136,679 78,203
Prepaid expenses and other assets 20,470 13,419
Total current assets 286,589 190,680
Oil and natural gas properties and other, net 576,073 579,016
Restricted deposits for asset retirement obligations 26,072 25,394
Income taxes receivable   52,097
Other assets 69,418 60,393
Total assets 958,152 907,580
Current liabilities:    
Accounts payable 46,464 83,665
Undistributed oil and natural gas proceeds 22,649 20,129
Asset retirement obligations 27,923 23,613
Current maturities of long-term debt:    
Principal 189,829  
Carrying value adjustments 34,917 22,925
Current maturities of long-term debt - carrying value 224,746 22,925
Accrued liabilities 20,505 17,930
Total current liabilities 342,287 168,262
Long-term debt:    
Principal 713,365 889,790
Carrying value adjustments 47,605 79,337
Long term debt, less current portion - carrying value 760,970 969,127
Asset retirement obligations, less current portion 289,297 276,833
Other liabilities 73,007 66,866
Shareholders’ deficit:    
Common stock 1 1
Additional paid-in capital 548,196 545,820
Retained earnings (deficit) (1,031,439) (1,095,162)
Treasury stock, at cost (24,167) (24,167)
Total shareholders' equity (deficit) (507,409) (573,508)
Total liabilities and shareholders' equity (deficit) 958,152 907,580
Parent Company    
Current assets:    
Cash and cash equivalents 129,440 99,058
Receivables:    
Oil and natural gas sales 8,109 5,665
Joint interest 19,366 19,754
Income taxes 193,594 128,835
Total receivables 221,069 154,254
Prepaid expenses and other assets 16,739 11,154
Total current assets 367,248 264,466
Oil and natural gas properties and other, net 416,539 430,354
Restricted deposits for asset retirement obligations 26,072 25,394
Income taxes receivable   52,097
Other assets 607,463 505,304
Total assets 1,417,322 1,277,615
Current liabilities:    
Accounts payable 38,445 76,703
Undistributed oil and natural gas proceeds 21,390 18,762
Asset retirement obligations 21,663 22,488
Current maturities of long-term debt:    
Principal 189,829  
Carrying value adjustments 34,917  
Current maturities of long-term debt - carrying value 224,746 22,925
Accrued liabilities 20,523 18,058
Total current liabilities 326,767 158,936
Long-term debt:    
Principal 713,365 889,790
Carrying value adjustments 47,605 79,337
Long term debt, less current portion - carrying value 760,970 969,127
Asset retirement obligations, less current portion 164,010 152,883
Other liabilities 663,239 566,375
Shareholders’ deficit:    
Common stock 1 1
Additional paid-in capital 548,196 545,820
Retained earnings (deficit) (1,021,694) (1,091,360)
Treasury stock, at cost (24,167) (24,167)
Total shareholders' equity (deficit) (497,664) (569,706)
Total liabilities and shareholders' equity (deficit) 1,417,322 1,277,615
Guarantor Subsidiaries    
Receivables:    
Oil and natural gas sales 44,161 39,778
Total receivables 44,161 39,778
Prepaid expenses and other assets 3,700 2,265
Total current assets 47,861 42,043
Oil and natural gas properties and other, net 121,075 152,464
Other assets 544,029 453,306
Total assets 712,965 647,813
Current liabilities:    
Accounts payable 6,457 6,962
Undistributed oil and natural gas proceeds 1,259 1,367
Asset retirement obligations 6,260 1,125
Current maturities of long-term debt:    
Accrued liabilities 128,336 115,701
Total current liabilities 142,312 125,155
Long-term debt:    
Asset retirement obligations, less current portion 125,275 123,950
Shareholders’ deficit:    
Additional paid-in capital 704,885 704,885
Retained earnings (deficit) (259,507) (306,177)
Total shareholders' equity (deficit) 445,378 398,708
Total liabilities and shareholders' equity (deficit) 712,965 647,813
Non-Guarantor Adjustments    
Receivables:    
Oil and natural gas sales (197)  
Total receivables (197)  
Prepaid expenses and other assets 31  
Total current assets (166)  
Oil and natural gas properties and other, net 48,003  
Other assets (46,464)  
Total assets 1,373  
Current liabilities:    
Accounts payable 1,562  
Current maturities of long-term debt:    
Total current liabilities 1,562  
Long-term debt:    
Asset retirement obligations, less current portion 12  
Shareholders’ deficit:    
Retained earnings (deficit) (201)  
Total shareholders' equity (deficit) (201)  
Total liabilities and shareholders' equity (deficit) 1,373  
Eliminations    
Receivables:    
Income taxes (128,354) (115,829)
Total receivables (128,354) (115,829)
Total current assets (128,354) (115,829)
Oil and natural gas properties and other, net (9,544) (3,802)
Other assets (1,035,610) (898,217)
Total assets (1,173,508) (1,017,848)
Current maturities of long-term debt:    
Accrued liabilities (128,354) (115,829)
Total current liabilities (128,354) (115,829)
Long-term debt:    
Other liabilities (590,232) (499,509)
Shareholders’ deficit:    
Additional paid-in capital (704,885) (704,885)
Retained earnings (deficit) 249,963 302,375
Total shareholders' equity (deficit) (454,922) (402,510)
Total liabilities and shareholders' equity (deficit) $ (1,173,508) $ (1,017,848)