Annual report pursuant to Section 13 and 15(d)

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details)

v3.3.1.900
Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Current assets:        
Cash and cash equivalents $ 85,414 $ 23,666 $ 15,800 $ 12,245
Receivables:        
Oil and natural gas sales 35,005 67,242    
Joint interest and other 22,012 43,645    
Total receivables 57,017 110,887    
Prepaid expenses and other assets 26,879 36,347    
Total current assets 169,310 170,900    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 7,902,494 8,045,666    
Furniture, fixtures and other 20,802 23,269    
Total property and equipment 7,923,296 8,068,935    
Less accumulated depreciation, depletion and amortization 6,933,247 5,575,078    
Net property and equipment 990,049 2,493,857    
Deferred income taxes 27,595      
Restricted deposits for asset retirement obligations 15,606 15,444    
Other assets 5,462 9,307    
Total assets 1,208,022 2,689,508    
Current liabilities:        
Accounts payable 109,797 194,109    
Undistributed oil and natural gas proceeds 21,439 37,009    
Asset retirement obligations 84,335 36,003    
Accrued liabilities 11,922 17,377    
Total current liabilities 227,493 284,498    
Long-term debt, less current maturities 1,196,855 1,352,120    
Asset retirement obligations, less current portion 293,987 354,565    
Deferred income taxes   175,326    
Other liabilities 16,178 13,691    
Shareholders’ equity:        
Common stock 1 1    
Additional paid-in capital 423,499 414,580    
Retained earnings (deficit) (925,824) 118,894    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (526,491) 509,308 540,610 541,187
Total liabilities and shareholders’ equity (deficit) 1,208,022 2,689,508    
Parent Company        
Current assets:        
Cash and cash equivalents 85,414 23,666 $ 15,800 $ 12,245
Receivables:        
Oil and natural gas sales 2,742 41,820    
Joint interest and other 121,190 142,885    
Total receivables 123,932 184,705    
Prepaid expenses and other assets 25,375 28,728    
Total current assets 234,721 237,099    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 5,682,793 6,038,915    
Furniture, fixtures and other 20,802 23,269    
Total property and equipment 5,703,595 6,062,184    
Less accumulated depreciation, depletion and amortization 5,258,563 4,442,899    
Net property and equipment 445,032 1,619,285    
Deferred income taxes 27,251      
Restricted deposits for asset retirement obligations 15,606 15,444    
Other assets 498,782 966,112    
Total assets 1,221,392 2,837,940    
Current liabilities:        
Accounts payable 100,282 188,654    
Undistributed oil and natural gas proceeds 20,463 36,130    
Asset retirement obligations 63,716 30,711    
Accrued liabilities 11,922 17,437    
Total current liabilities 196,383 272,932    
Long-term debt, less current maturities 1,196,855 1,352,120    
Asset retirement obligations, less current portion 173,105 235,876    
Deferred income taxes   49,819    
Other liabilities 329,129 417,885    
Shareholders’ equity:        
Common stock 1 1    
Additional paid-in capital 423,499 414,580    
Retained earnings (deficit) (1,073,413) 118,894    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (674,080) 509,308    
Total liabilities and shareholders’ equity (deficit) 1,221,392 2,837,940    
Guarantor Subsidiaries        
Receivables:        
Oil and natural gas sales 32,263 25,422    
Total receivables 32,263 25,422    
Prepaid expenses and other assets 1,504 7,619    
Total current assets 33,767 33,041    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 2,219,701 2,006,751    
Total property and equipment 2,219,701 2,006,751    
Less accumulated depreciation, depletion and amortization 1,822,273 1,132,179    
Net property and equipment 397,428 874,572    
Deferred income taxes 344      
Other assets 266,748 357,992    
Total assets 698,287 1,265,605    
Current liabilities:        
Accounts payable 9,515 5,455    
Undistributed oil and natural gas proceeds 976 879    
Asset retirement obligations 20,619 5,292    
Accrued liabilities 99,178 99,180    
Total current liabilities 130,288 110,806    
Asset retirement obligations, less current portion 120,882 118,689    
Deferred income taxes   125,507    
Shareholders’ equity:        
Additional paid-in capital 704,885 703,440    
Retained earnings (deficit) (257,768) 207,163    
Total shareholders’ equity (deficit) 447,117 910,603    
Total liabilities and shareholders’ equity (deficit) 698,287 1,265,605    
Eliminations        
Receivables:        
Joint interest and other (99,178) (99,240)    
Total receivables (99,178) (99,240)    
Total current assets (99,178) (99,240)    
Property and equipment - at cost:        
Less accumulated depreciation, depletion and amortization (147,589)      
Net property and equipment 147,589      
Other assets (760,068) (1,314,797)    
Total assets (711,657) (1,414,037)    
Current liabilities:        
Accrued liabilities (99,178) (99,240)    
Total current liabilities (99,178) (99,240)    
Other liabilities (312,951) (404,194)    
Shareholders’ equity:        
Additional paid-in capital (704,885) (703,440)    
Retained earnings (deficit) 405,357 (207,163)    
Total shareholders’ equity (deficit) (299,528) (910,603)    
Total liabilities and shareholders’ equity (deficit) $ (711,657) $ (1,414,037)