Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheets) (Details)

v3.5.0.2
Condensed Consolidating Financial Statements (Condensed Consolidating Balance Sheets) (Details) - USD ($)
$ in Thousands
Sep. 30, 2016
Dec. 31, 2015
Sep. 30, 2015
Dec. 31, 2014
Current assets:        
Cash and cash equivalents $ 364,276 $ 112,974 $ 228,111 $ 142,340
Accounts receivable—oil and gas 127,788 71,872    
Accounts receivable - related parties 96 16    
Accounts receivable - intercompany   0    
Prepaid expenses and other current assets 10,740 3,905    
Short-term derivative instruments 39,363 142,794    
Deferred tax asset 38 0    
Total current assets 542,301 331,561    
Property and equipment:        
Oil and natural gas properties 5,816,458 5,424,342    
Other property and equipment 54,460 33,171    
Accumulated depletion, depreciation, amortization and impairment (3,613,662) (2,829,110)    
Property and equipment, net 2,257,256 2,628,403    
Other assets:        
Equity investments 251,309 242,393    
Long-term derivative instruments 15,262 51,088    
Deferred tax asset 4,203 74,925    
Other assets 5,512 6,364    
Total other assets 276,286 374,770    
Total assets 3,075,843 3,334,734    
Current liabilities:        
Accounts payable and accrued liabilities 304,341 265,128    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 75 75 75  
Short-term derivative instruments 37,220 437    
Deferred tax liability 0 50,697    
Current maturities of long-term debt 220 179    
Total current liabilities 341,856 316,516    
Long-term derivative instrument 14,907 6,935    
Asset retirement obligation—long-term 32,910 26,362 23,073  
Long-term debt 961,050 946,084    
Total liabilities 1,350,723 1,295,897    
Stockholders’ equity:        
Common stock 1,253 1,082    
Paid-in capital 3,245,393 2,824,303    
Accumulated other comprehensive (loss) income (50,816) (55,177)    
Retained (deficit) earnings (1,470,710) (731,371)    
Total stockholders’ equity 1,725,120 2,038,837 2,871,130 2,296,296
Total liabilities and stockholders’ equity 3,075,843 3,334,734    
Parent        
Current assets:        
Cash and cash equivalents 363,279 112,494 226,161 141,535
Accounts receivable—oil and gas 133,159 72,241    
Accounts receivable - related parties 96 16    
Accounts receivable - intercompany 384,280 326,475    
Prepaid expenses and other current assets 10,270 3,905    
Short-term derivative instruments 39,363 142,794    
Deferred tax asset 38      
Total current assets 930,485 657,925    
Property and equipment:        
Oil and natural gas properties 5,425,128 5,108,258    
Other property and equipment 54,417 33,128    
Accumulated depletion, depreciation, amortization and impairment (3,613,630) (2,829,081)    
Property and equipment, net 1,865,915 2,312,305    
Other assets:        
Equity investments 241,342 231,892    
Long-term derivative instruments 15,262 51,088    
Deferred tax asset 4,203 74,925    
Other assets 5,512 6,364    
Total other assets 266,319 364,269    
Total assets 3,062,719 3,334,499    
Current liabilities:        
Accounts payable and accrued liabilities 291,217 264,893    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 75 75    
Short-term derivative instruments 37,220 437    
Deferred tax liability   50,697    
Current maturities of long-term debt 220 179    
Total current liabilities 328,732 316,281    
Long-term derivative instrument 14,907 6,935    
Asset retirement obligation—long-term 32,910 26,362    
Long-term debt 961,050 946,084    
Total liabilities 1,337,599 1,295,662    
Stockholders’ equity:        
Common stock 1,253 1,082    
Paid-in capital 3,245,393 2,824,303    
Accumulated other comprehensive (loss) income (50,816) (55,177)    
Retained (deficit) earnings (1,470,710) (731,371)    
Total stockholders’ equity 1,725,120 2,038,837    
Total liabilities and stockholders’ equity 3,062,719 3,334,499    
Guarantors        
Current assets:        
Cash and cash equivalents 996 479 1,949 804
Accounts receivable—oil and gas 16,283 54    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany 5,970 60    
Prepaid expenses and other current assets 470 0    
Short-term derivative instruments 0 0    
Deferred tax asset 0      
Total current assets 23,719 593    
Property and equipment:        
Oil and natural gas properties 392,059 316,813    
Other property and equipment 43 43    
Accumulated depletion, depreciation, amortization and impairment (32) (29)    
Property and equipment, net 392,070 316,827    
Other assets:        
Equity investments 26,540 0    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Other assets   0    
Total other assets 26,540      
Total assets 442,329 317,420    
Current liabilities:        
Accounts payable and accrued liabilities 40,557 527    
Accounts payable - intercompany 384,346 326,541    
Asset retirement obligation—current   0    
Short-term derivative instruments   0    
Deferred tax liability   0    
Current maturities of long-term debt 0 0    
Total current liabilities 424,903 327,068    
Long-term derivative instrument 0 0    
Asset retirement obligation—long-term 0 0    
Long-term debt 0 0    
Total liabilities 424,903 327,068    
Stockholders’ equity:        
Common stock   0    
Paid-in capital 26,822 322    
Accumulated other comprehensive (loss) income   0    
Retained (deficit) earnings (9,396) (9,970)    
Total stockholders’ equity 17,426 (9,648)    
Total liabilities and stockholders’ equity 442,329 317,420    
Non-Guarantor        
Current assets:        
Cash and cash equivalents 1 1 1 1
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    
Deferred tax asset 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 48,596 50,644    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Other assets   0    
Total other assets 48,596 50,644    
Total assets 48,597 50,645    
Current liabilities:        
Accounts payable and accrued liabilities 1 0    
Accounts payable - intercompany 125 124    
Asset retirement obligation—current   0    
Short-term derivative instruments   0    
Deferred tax liability   0    
Current maturities of long-term debt 0 0    
Total current liabilities 126 124    
Long-term derivative instrument 0 0    
Asset retirement obligation—long-term 0 0    
Long-term debt 0 0    
Total liabilities 126 124    
Stockholders’ equity:        
Common stock   0    
Paid-in capital 256,065 241,553    
Accumulated other comprehensive (loss) income (46,925) (55,177)    
Retained (deficit) earnings (160,669) (135,855)    
Total stockholders’ equity 48,471 50,521    
Total liabilities and stockholders’ equity 48,597 50,645    
Eliminations        
Current assets:        
Cash and cash equivalents 0 0 $ 0 $ 0
Accounts receivable—oil and gas (21,654) (423)    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany (390,250) (326,535)    
Prepaid expenses and other current assets   0    
Short-term derivative instruments 0 0    
Deferred tax asset 0      
Total current assets (411,904) (326,958)    
Property and equipment:        
Oil and natural gas properties (729) (729)    
Other property and equipment   0    
Accumulated depletion, depreciation, amortization and impairment   0    
Property and equipment, net (729) (729)    
Other assets:        
Equity investments (65,169) (40,143)    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Other assets   0    
Total other assets (65,169) (40,143)    
Total assets (477,802) (367,830)    
Current liabilities:        
Accounts payable and accrued liabilities (27,434) (292)    
Accounts payable - intercompany (384,471) (326,665)    
Asset retirement obligation—current   0    
Short-term derivative instruments   0    
Deferred tax liability   0    
Current maturities of long-term debt 0 0    
Total current liabilities (411,905) (326,957)    
Long-term derivative instrument 0 0    
Asset retirement obligation—long-term 0 0    
Long-term debt 0 0    
Total liabilities (411,905) (326,957)    
Stockholders’ equity:        
Common stock   0    
Paid-in capital (282,887) (241,875)    
Accumulated other comprehensive (loss) income 46,925 55,177    
Retained (deficit) earnings 170,065 145,825    
Total stockholders’ equity (65,897) (40,873)    
Total liabilities and stockholders’ equity $ (477,802) $ (367,830)