Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details)

v3.5.0.2
Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2014
Current assets:        
Cash and cash equivalents $ 73,351 $ 85,414 $ 7,463 $ 23,666
Receivables:        
Oil and natural gas sales 35,772 35,005    
Joint interest and other 17,688 22,012    
Total receivables 53,460 57,017    
Prepaid expenses and other assets 16,145 26,879    
Total current assets 142,956 169,310    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 7,937,338 7,902,494    
Furniture, fixtures and other 20,898 20,802    
Total property and equipment 7,958,236 7,923,296    
Less accumulated depreciation, depletion and amortization 7,371,677 6,933,247    
Net property and equipment 586,559 990,049    
Deferred income taxes 12,395 27,595    
Restricted deposits for asset retirement obligations 26,767 15,606    
Income tax receivables 52,097      
Other assets 11,823 5,462    
Total assets 832,597 1,208,022    
Current liabilities:        
Accounts payable 83,309 109,797    
Undistributed oil and natural gas proceeds 21,239 21,439    
Asset retirement obligations 90,150 84,335    
Accrued liabilities 19,573 11,922    
Long-term debt 8,763      
Total current liabilities 223,034 227,493    
Long-term debt 1,014,221 1,196,855    
Asset retirement obligations, less current portion 256,656 293,987    
Other liabilities 16,683 16,178    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 537,496 423,499    
Retained earnings (deficit) (1,191,327) (925,824)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (677,997) (526,491)    
Total liabilities and shareholders’ equity (deficit) 832,597 1,208,022    
Parent Company        
Current assets:        
Cash and cash equivalents 73,351 85,414 $ 7,463 $ 23,666
Receivables:        
Oil and natural gas sales   2,742    
Joint interest and other 17,688 121,190    
Income taxes 99,276      
Total receivables 116,964 123,932    
Prepaid expenses and other assets 13,048 25,375    
Total current assets 203,363 234,721    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 5,700,543 5,682,793    
Furniture, fixtures and other 20,898 20,802    
Total property and equipment 5,721,441 5,703,595    
Less accumulated depreciation, depletion and amortization 5,345,682 5,258,563    
Net property and equipment 375,759 445,032    
Deferred income taxes 9,573 27,251    
Restricted deposits for asset retirement obligations 26,767 15,606    
Income tax receivables 52,097      
Other assets 374,421 498,782    
Total assets 1,041,980 1,221,392    
Current liabilities:        
Accounts payable 77,088 100,282    
Undistributed oil and natural gas proceeds 19,308 20,463    
Asset retirement obligations 68,936 63,716    
Accrued liabilities 19,669 11,922    
Long-term debt 8,763      
Total current liabilities 193,764 196,383    
Long-term debt 1,014,221 1,196,855    
Asset retirement obligations, less current portion 136,662 173,105    
Other liabilities 375,330 329,129    
Shareholders’ deficit:        
Common stock 1 1    
Additional paid-in capital 537,496 423,499    
Retained earnings (deficit) (1,191,327) (1,073,413)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (677,997) (674,080)    
Total liabilities and shareholders’ equity (deficit) 1,041,980 1,221,392    
Guarantor Subsidiaries        
Receivables:        
Oil and natural gas sales 36,305 32,263    
Total receivables 36,305 32,263    
Prepaid expenses and other assets 3,097 1,504    
Total current assets 39,402 33,767    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 2,236,795 2,219,701    
Total property and equipment 2,236,795 2,219,701    
Less accumulated depreciation, depletion and amortization 2,025,995 1,822,273    
Net property and equipment 210,800 397,428    
Deferred income taxes 2,822 344    
Other assets 311,913 266,748    
Total assets 564,937 698,287    
Current liabilities:        
Accounts payable 6,221 9,515    
Undistributed oil and natural gas proceeds 1,931 976    
Asset retirement obligations 21,214 20,619    
Accrued liabilities 99,180 99,178    
Total current liabilities 128,546 130,288    
Asset retirement obligations, less current portion 119,994 120,882    
Shareholders’ deficit:        
Additional paid-in capital 704,885 704,885    
Retained earnings (deficit) (388,488) (257,768)    
Total shareholders’ equity (deficit) 316,397 447,117    
Total liabilities and shareholders’ equity (deficit) 564,937 698,287    
Eliminations        
Receivables:        
Oil and natural gas sales (533)      
Joint interest and other   (99,178)    
Income taxes (99,276)      
Total receivables (99,809) (99,178)    
Total current assets (99,809) (99,178)    
Property and equipment - at cost:        
Less accumulated depreciation, depletion and amortization   (147,589)    
Net property and equipment   147,589    
Other assets (674,511) (760,068)    
Total assets (774,320) (711,657)    
Current liabilities:        
Accrued liabilities (99,276) (99,178)    
Total current liabilities (99,276) (99,178)    
Other liabilities (358,647) (312,951)    
Shareholders’ deficit:        
Additional paid-in capital (704,885) (704,885)    
Retained earnings (deficit) 388,488 405,357    
Total shareholders’ equity (deficit) (316,397) (299,528)    
Total liabilities and shareholders’ equity (deficit) $ (774,320) $ (711,657)