Annual report pursuant to Section 13 and 15(d)

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

v3.6.0.2
Condensed Consolidating Financial Information - Condensed Consolidating Balance Sheets (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Current assets:        
Cash and cash equivalents $ 1,275,875 $ 112,974 $ 142,340 $ 458,956
Restricted cash 185,000 0    
Accounts receivable—oil and gas 136,761 71,872    
Accounts receivable - related parties 16 16    
Accounts receivable - intercompany 0 0    
Prepaid expenses and other current assets 7,639 3,905    
Short-term derivative instruments - assets 3,488 142,794    
Total current assets 1,608,779 331,561    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 6,071,920 5,424,342    
Other property and equipment 68,986 33,171    
Accumulated depletion, depreciation, amortization and impairment (3,789,780) (2,829,110)    
Property and equipment, net 2,351,126 2,628,403    
Other assets:        
Equity investments and investments in subsidiaries 243,920 242,393    
Long-term derivative instruments 5,696 51,088    
Deferred tax asset (2016) 4,692      
Deferred tax asset (2015)   74,925    
Other assets 8,932 6,364    
Total other assets 263,240 374,770    
Total assets 4,223,145 3,334,734    
Current liabilities:        
Accounts payable and accrued liabilities 265,124 265,128    
Accounts payable - intercompany 0 0    
Asset retirement obligation 195 75    
Derivative instruments 119,219 437    
Deferred tax liability   50,697    
Current maturities of long-term debt 276 179    
Total current liabilities 384,814 316,516    
Long-term derivative instrument 26,759 6,935    
Asset retirement obligation 34,081 26,362    
Long-term debt, net of current maturities 1,593,599 946,084    
Total liabilities 2,039,253 1,295,897    
Stockholders’ equity:        
Common stock 1,588 1,082    
Paid-in capital 3,946,442 2,824,303    
Accumulated other comprehensive loss (53,058) (55,177)    
Retained (deficit) earnings (1,711,080) (731,371)    
Total stockholders’ equity 2,183,892 2,038,837 2,296,296 2,050,238
Total liabilities and stockholders’ equity 4,223,145 3,334,734    
Parent        
Current assets:        
Cash and cash equivalents 1,273,882 112,494 141,535 451,431
Restricted cash 185,000      
Accounts receivable—oil and gas 137,087 72,241    
Accounts receivable - related parties 16 16    
Accounts receivable - intercompany 449,517 326,475    
Prepaid expenses and other current assets 6,230 3,905    
Short-term derivative instruments - assets 3,488 142,794    
Total current assets 2,055,220 657,925    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 5,655,125 5,108,258    
Other property and equipment 68,943 33,128    
Accumulated depletion, depreciation, amortization and impairment (3,789,746) (2,829,081)    
Property and equipment, net 1,934,322 2,312,305    
Other assets:        
Equity investments and investments in subsidiaries 236,327 231,892    
Long-term derivative instruments 5,696 51,088    
Deferred tax asset (2016) 4,692      
Deferred tax asset (2015)   74,925    
Other assets 8,932 6,364    
Total other assets 255,647 364,269    
Total assets 4,245,189 3,334,499    
Current liabilities:        
Accounts payable and accrued liabilities 255,966 264,893    
Accounts payable - intercompany 31,202 0    
Asset retirement obligation 195 75    
Derivative instruments 119,219 437    
Deferred tax liability   50,697    
Current maturities of long-term debt 276 179    
Total current liabilities 406,858 316,281    
Long-term derivative instrument 26,759 6,935    
Asset retirement obligation 34,081 26,362    
Long-term debt, net of current maturities 1,593,599 946,084    
Total liabilities 2,061,297 1,295,662    
Stockholders’ equity:        
Common stock 1,588 1,082    
Paid-in capital 3,946,442 2,824,303    
Accumulated other comprehensive loss (53,058) (55,177)    
Retained (deficit) earnings (1,711,080) (731,371)    
Total stockholders’ equity 2,183,892 2,038,837    
Total liabilities and stockholders’ equity 4,245,189 3,334,499    
Guarantors        
Current assets:        
Cash and cash equivalents 1,993 479 804 7,525
Accounts receivable—oil and gas 37,496 54    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany 1,151 60    
Prepaid expenses and other current assets 1,409 0    
Short-term derivative instruments - assets 0 0    
Total current assets 42,049 593    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 417,524 316,813    
Other property and equipment 43 43    
Accumulated depletion, depreciation, amortization and impairment (34) (29)    
Property and equipment, net 417,533 316,827    
Other assets:        
Equity investments and investments in subsidiaries 33,590 0    
Long-term derivative instruments 0 0    
Deferred tax asset (2016) 0      
Deferred tax asset (2015)   0    
Other assets 0 0    
Total other assets 33,590 0    
Total assets 493,172 317,420    
Current liabilities:        
Accounts payable and accrued liabilities 9,158 527    
Accounts payable - intercompany 457,163 326,541    
Asset retirement obligation 0 0    
Derivative instruments 0 0    
Deferred tax liability   0    
Current maturities of long-term debt 0 0    
Total current liabilities 466,321 327,068    
Long-term derivative instrument 0 0    
Asset retirement obligation 0 0    
Long-term debt, net of current maturities 0 0    
Total liabilities 466,321 327,068    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 33,822 322    
Accumulated other comprehensive loss 0 0    
Retained (deficit) earnings (6,971) (9,970)    
Total stockholders’ equity 26,851 (9,648)    
Total liabilities and stockholders’ equity 493,172 317,420    
Non-Guarantor        
Current assets:        
Cash and cash equivalents 0 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 - assets 0 0    
Total current assets   1    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 0 0    
Other property and equipment 0 0    
Accumulated depletion, depreciation, amortization and impairment 0 0    
Property and equipment, net 0 0    
Other assets:        
Equity investments and investments in subsidiaries 45,213 50,644    
Long-term derivative instruments 0 0    
Deferred tax asset (2016) 0      
Deferred tax asset (2015)   0    
Other assets 0 0    
Total other assets 45,213 50,644    
Total assets 45,213 50,645    
Current liabilities:        
Accounts payable and accrued liabilities 0 0    
Accounts payable - intercompany 126 124    
Asset retirement obligation 0 0    
Derivative instruments 0 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 0 0    
Long-term debt, net of current maturities 0 0    
Total liabilities 126 124    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 257,026 241,553    
Accumulated other comprehensive loss (50,931) (55,177)    
Retained (deficit) earnings (161,008) (135,855)    
Total stockholders’ equity 45,087 50,521    
Total liabilities and stockholders’ equity 45,213 50,645    
Eliminations        
Current assets:        
Cash and cash equivalents 0 0 $ 0 $ 0
Restricted cash 0      
Accounts receivable—oil and gas (37,822) (423)    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany (450,668) (326,535)    
Prepaid expenses and other current assets 0 0    
Short-term derivative instruments - assets 0 0    
Total current assets (488,490) (326,958)    
Property and equipment:        
Oil and natural gas properties, full-cost accounting (729) (729)    
Other property and equipment 0 0    
Accumulated depletion, depreciation, amortization and impairment 0 0    
Property and equipment, net (729) (729)    
Other assets:        
Equity investments and investments in subsidiaries (71,210) (40,143)    
Long-term derivative instruments 0 0    
Deferred tax asset (2016) 0      
Deferred tax asset (2015)   0    
Other assets 0 0    
Total other assets (71,210) (40,143)    
Total assets (560,429) (367,830)    
Current liabilities:        
Accounts payable and accrued liabilities   (292)    
Accounts payable - intercompany (488,491) (326,665)    
Asset retirement obligation 0 0    
Derivative instruments 0 0    
Deferred tax liability   0    
Current maturities of long-term debt 0 0    
Total current liabilities (488,491) (326,957)    
Long-term derivative instrument 0 0    
Asset retirement obligation 0 0    
Long-term debt, net of current maturities 0 0    
Total liabilities (488,491) (326,957)    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital (290,848) (241,875)    
Accumulated other comprehensive loss 50,931 55,177    
Retained (deficit) earnings 167,979 145,825    
Total stockholders’ equity (71,938) (40,873)    
Total liabilities and stockholders’ equity $ (560,429) $ (367,830)