Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details)

v3.4.0.3
Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($)
$ in Thousands
Mar. 31, 2016
Dec. 31, 2015
Mar. 31, 2015
Dec. 31, 2014
Current assets:        
Cash and cash equivalents $ 370,623 $ 85,414 $ 8,367 $ 23,666
Receivables:        
Oil and natural gas sales 27,903 35,005    
Joint interest and other 17,006 22,012    
Total receivables 44,909 57,017    
Prepaid expenses and other assets 23,035 26,879    
Total current assets 438,567 169,310    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 7,895,402 7,902,494    
Furniture, fixtures and other 20,802 20,802    
Total property and equipment 7,916,204 7,923,296    
Less accumulated depreciation, depletion and amortization 7,108,925 6,933,247    
Net property and equipment 807,279 990,049    
Deferred income taxes 32,553 27,595    
Restricted deposits for asset retirement obligations 16,171 15,606    
Other assets 4,225 5,462    
Total assets 1,298,795 1,208,022    
Current liabilities:        
Accounts payable 92,045 109,797    
Undistributed oil and natural gas proceeds 20,654 21,439    
Asset retirement obligations 83,778 84,335    
Accrued liabilities 39,486 11,922    
Current portion of long-term debt 138,999      
Total current liabilities 374,962 227,493    
Long-term debt, less current maturities 1,345,954 1,196,855    
Asset retirement obligations, less current portion 275,986 293,987    
Other liabilities 16,357 16,178    
Shareholders’ equity (deficit):        
Common stock 1 1    
Additional paid-in capital 426,035 423,499    
Retained earnings (deficit) (1,116,333) (925,824)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (714,464) (526,491)    
Total liabilities and shareholders’ equity (deficit) 1,298,795 1,208,022    
Parent Company        
Current assets:        
Cash and cash equivalents 370,623 85,414 $ 8,367 $ 23,666
Receivables:        
Oil and natural gas sales 197 2,742    
Joint interest and other 116,184 121,190    
Total receivables 116,381 123,932    
Prepaid expenses and other assets 19,776 25,375    
Total current assets 506,780 234,721    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 5,668,440 5,682,793    
Furniture, fixtures and other 20,802 20,802    
Total property and equipment 5,689,242 5,703,595    
Less accumulated depreciation, depletion and amortization 5,276,838 5,258,563    
Net property and equipment 412,404 445,032    
Deferred income taxes 31,003 27,251    
Restricted deposits for asset retirement obligations 16,171 15,606    
Other assets 424,515 498,782    
Total assets 1,390,873 1,221,392    
Current liabilities:        
Accounts payable 82,318 100,282    
Undistributed oil and natural gas proceeds 18,915 20,463    
Asset retirement obligations 66,816 63,716    
Accrued liabilities 39,486 11,922    
Current portion of long-term debt 138,999      
Total current liabilities 346,534 196,383    
Long-term debt, less current maturities 1,345,954 1,196,855    
Asset retirement obligations, less current portion 154,272 173,105    
Other liabilities 335,043 329,129    
Shareholders’ equity (deficit):        
Common stock 1 1    
Additional paid-in capital 426,035 423,499    
Retained earnings (deficit) (1,192,799) (1,073,413)    
Treasury stock, at cost (24,167) (24,167)    
Total shareholders’ equity (deficit) (790,930) (674,080)    
Total liabilities and shareholders’ equity (deficit) 1,390,873 1,221,392    
Guarantor Subsidiaries        
Receivables:        
Oil and natural gas sales 27,706 32,263    
Total receivables 27,706 32,263    
Prepaid expenses and other assets 3,259 1,504    
Total current assets 30,965 33,767    
Property and equipment - at cost:        
Oil and natural gas properties and equipment 2,226,962 2,219,701    
Total property and equipment 2,226,962 2,219,701    
Less accumulated depreciation, depletion and amortization 1,908,552 1,822,273    
Net property and equipment 318,410 397,428    
Deferred income taxes 1,550 344    
Other assets 272,483 266,748    
Total assets 623,408 698,287    
Current liabilities:        
Accounts payable 9,727 9,515    
Undistributed oil and natural gas proceeds 1,739 976    
Asset retirement obligations 16,962 20,619    
Accrued liabilities 99,178 99,178    
Total current liabilities 127,606 130,288    
Asset retirement obligations, less current portion 121,714 120,882    
Shareholders’ equity (deficit):        
Additional paid-in capital 704,885 704,885    
Retained earnings (deficit) (330,797) (257,768)    
Total shareholders’ equity (deficit) 374,088 447,117    
Total liabilities and shareholders’ equity (deficit) 623,408 698,287    
Eliminations        
Receivables:        
Joint interest and other (99,178) (99,178)    
Total receivables (99,178) (99,178)    
Total current assets (99,178) (99,178)    
Property and equipment - at cost:        
Less accumulated depreciation, depletion and amortization (76,465) (147,589)    
Net property and equipment 76,465 147,589    
Other assets (692,773) (760,068)    
Total assets (715,486) (711,657)    
Current liabilities:        
Accrued liabilities (99,178) (99,178)    
Total current liabilities (99,178) (99,178)    
Other liabilities (318,686) (312,951)    
Shareholders’ equity (deficit):        
Additional paid-in capital (704,885) (704,885)    
Retained earnings (deficit) 407,263 405,357    
Total shareholders’ equity (deficit) (297,622) (299,528)    
Total liabilities and shareholders’ equity (deficit) $ (715,486) $ (711,657)