Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidating Financial Information - Condensed Consolidating Balance Sheets (Details)

v3.2.0.727
Condensed Consolidating Financial Information - Condensed Consolidating Balance Sheets (Details) - USD ($)
$ in Thousands
Jun. 30, 2015
Dec. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Current assets:        
Cash and cash equivalents $ 525,488 $ 142,340 $ 75,293 $ 458,956
Restricted cash 75,005 0    
Accounts receivable—oil and gas 86,621 103,858    
Accounts receivable - related parties 90 46    
Accounts receivable - intercompany   0    
Prepaid expenses and other current assets 15,168 3,714    
Short-term derivative instruments 77,350 78,391    
Total current assets 779,722 328,349    
Property and equipment:        
Oil and natural gas properties 4,798,835 3,923,154    
Other property and equipment 22,930 18,344    
Accumulated depletion, depreciation, amortization and impairment (1,211,308) (1,050,879)    
Property and equipment, net 3,610,457 2,890,619    
Other assets:        
Equity investments and investments in subsidiaries 362,391 369,581    
Derivative instruments 25,871 24,448    
Other assets 25,418 19,396    
Total other assets 413,680 413,425    
Total assets 4,803,859 3,632,393    
Current liabilities:        
Accounts payable and accrued liabilities 318,725 371,410    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 75 75 795  
Short-term derivative instruments 937      
Deferred tax liability - current 26,508 27,070    
Current maturities of long-term debt 1,738 168    
Total current liabilities 347,983 398,723    
Long-term derivative instrument 2,753 0    
Asset retirement obligation—long-term 21,202 17,863 15,181  
Deferred tax liability 201,022 203,195    
Long-term debt, net of current maturities 963,593 716,316    
Total liabilities 1,536,553 1,336,097    
Stockholders’ equity:        
Common stock 1,081 856    
Paid-in capital 2,816,930 1,828,602    
Accumulated other comprehensive income (loss) (38,412) (26,675)    
Retained earnings (accumulated deficit) 487,707 493,513    
Total stockholders’ equity 3,267,306 2,296,296 2,188,499 2,050,238
Total liabilities and stockholders’ equity 4,803,859 3,632,393    
Parent [Member]        
Current assets:        
Cash and cash equivalents 524,240 141,535 72,921 451,431
Restricted cash 75,005      
Accounts receivable—oil and gas 86,558 103,762    
Accounts receivable - related parties 90 46    
Accounts receivable - intercompany 48,401 45,222    
Prepaid expenses and other current assets 15,168 3,714    
Short-term derivative instruments 77,350 78,391    
Total current assets 826,812 372,670    
Property and equipment:        
Oil and natural gas properties 4,760,793 3,887,874    
Other property and equipment 22,887 18,301    
Accumulated depletion, depreciation, amortization and impairment (1,211,281) (1,050,855)    
Property and equipment, net 3,572,399 2,855,320    
Other assets:        
Equity investments and investments in subsidiaries 353,243 360,238    
Derivative instruments 25,871 24,448    
Other assets 25,418 19,396    
Total other assets 404,532 404,082    
Total assets 4,803,743 3,632,072    
Current liabilities:        
Accounts payable and accrued liabilities 318,609 371,089    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 75 75    
Short-term derivative instruments 937      
Deferred tax liability - current 26,508 27,070    
Current maturities of long-term debt 1,738 168    
Total current liabilities 347,867 398,402    
Long-term derivative instrument 2,753      
Asset retirement obligation—long-term 21,202 17,863    
Deferred tax liability 201,022 203,195    
Long-term debt, net of current maturities 963,593 716,316    
Total liabilities 1,536,437 1,335,776    
Stockholders’ equity:        
Common stock 1,081 856    
Paid-in capital 2,816,930 1,828,602    
Accumulated other comprehensive income (loss) (38,412) (26,675)    
Retained earnings (accumulated deficit) 487,707 493,513    
Total stockholders’ equity 3,267,306 2,296,296    
Total liabilities and stockholders’ equity 4,803,743 3,632,072    
Guarantors [Member]        
Current assets:        
Cash and cash equivalents 1,247 804 2,371 7,525
Accounts receivable—oil and gas 63 96    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany 55 27    
Prepaid expenses and other current assets   0    
Short-term derivative instruments 0 0    
Total current assets 1,365 927    
Property and equipment:        
Oil and natural gas properties 38,771 35,990    
Other property and equipment 43 43    
Accumulated depletion, depreciation, amortization and impairment (27) (24)    
Property and equipment, net 38,787 36,009    
Other assets:        
Equity investments and investments in subsidiaries   0    
Derivative instruments 0 0    
Other assets   0    
Total assets 40,152 36,936    
Current liabilities:        
Accounts payable and accrued liabilities 116 321    
Accounts payable - intercompany 48,326 45,143    
Asset retirement obligation—current   0    
Deferred tax liability - current   0    
Current maturities of long-term debt   0    
Total current liabilities 48,442 45,464    
Long-term derivative instrument 0      
Asset retirement obligation—long-term 0 0    
Deferred tax liability   0    
Long-term debt, net of current maturities 0 0    
Total liabilities 48,442 45,464    
Stockholders’ equity:        
Common stock   0    
Paid-in capital 322 322    
Accumulated other comprehensive income (loss)   0    
Retained earnings (accumulated deficit) (8,612) (8,850)    
Total stockholders’ equity (8,290) (8,528)    
Total liabilities and stockholders’ equity 40,152 36,936    
Non-Guarantor [Member]        
Current assets:        
Cash and cash equivalents 1 1 1 0
Restricted cash 0      
Accounts receivable—oil and gas 0 0    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany 0 0    
Prepaid expenses and other current assets 0 0    
Short-term derivative instruments 0 0    
Total current assets 1 1    
Property and equipment:        
Oil and natural gas properties   0    
Other property and equipment   0    
Accumulated depletion, depreciation, amortization and impairment   0    
Property and equipment, net   0    
Other assets:        
Equity investments and investments in subsidiaries 164,112 180,217    
Derivative instruments 0 0    
Other assets   0    
Total other assets 164,112 180,217    
Total assets 164,113 180,218    
Current liabilities:        
Accounts payable and accrued liabilities   0    
Accounts payable - intercompany 130 106    
Asset retirement obligation—current   0    
Deferred tax liability - current   0    
Current maturities of long-term debt   0    
Total current liabilities 130 106    
Long-term derivative instrument 0      
Asset retirement obligation—long-term 0 0    
Deferred tax liability   0    
Long-term debt, net of current maturities 0 0    
Total liabilities 130 106    
Stockholders’ equity:        
Common stock   0    
Paid-in capital 235,347 227,079    
Accumulated other comprehensive income (loss) (38,412) (26,675)    
Retained earnings (accumulated deficit) (32,952) (20,292)    
Total stockholders’ equity 163,983 180,112    
Total liabilities and stockholders’ equity 164,113 180,218    
Eliminations [Member]        
Current assets:        
Cash and cash equivalents 0 0 $ 0 $ 0
Restricted cash 0      
Accounts receivable—oil and gas   0    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany (48,456) (45,249)    
Prepaid expenses and other current assets   0    
Short-term derivative instruments 0 0    
Total current assets (48,456) (45,249)    
Property and equipment:        
Oil and natural gas properties (729) (710)    
Other property and equipment   0    
Accumulated depletion, depreciation, amortization and impairment   0    
Property and equipment, net (729) (710)    
Other assets:        
Equity investments and investments in subsidiaries (154,964) (170,874)    
Derivative instruments 0 0    
Other assets   0    
Total other assets (154,964) (170,874)    
Total assets (204,149) (216,833)    
Current liabilities:        
Accounts payable and accrued liabilities   0    
Accounts payable - intercompany (48,456) (45,249)    
Asset retirement obligation—current   0    
Deferred tax liability - current   0    
Current maturities of long-term debt   0    
Total current liabilities (48,456) (45,249)    
Long-term derivative instrument 0      
Asset retirement obligation—long-term 0 0    
Deferred tax liability   0    
Long-term debt, net of current maturities 0 0    
Total liabilities (48,456) (45,249)    
Stockholders’ equity:        
Common stock   0    
Paid-in capital (235,669) (227,401)    
Accumulated other comprehensive income (loss) 38,412 26,675    
Retained earnings (accumulated deficit) 41,564 29,142    
Total stockholders’ equity (155,693) (171,584)    
Total liabilities and stockholders’ equity $ (204,149) $ (216,833)