Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Condensed Consolidating Financial Information - Condensed Consolidating Balance Sheets (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Current assets:        
Cash and cash equivalents $ 99,557 $ 1,275,875 $ 112,974 $ 142,340
Restricted cash 0 185,000    
Accounts receivable—oil and natural gas 182,213 136,761    
Accounts receivable - related parties 0 16    
Accounts receivable - intercompany 0 0    
Prepaid expenses and other current assets 4,912 3,135    
Short-term derivative instruments - asset 78,847 3,488    
Total current assets 365,529 1,604,275    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 9,169,156 6,071,920    
Other property and equipment 86,754 68,986    
Accumulated depletion, depreciation, amortization and impairment (4,153,733) (3,789,780)    
Property and equipment, net 5,102,177 2,351,126    
Other assets:        
Equity investments and investments in subsidiaries 302,112 243,920    
Long-term derivative instruments 8,685 5,696    
Deferred tax asset 1,208 4,692    
Inventories 8,227 4,504    
Other assets 19,814 8,932    
Total other assets 340,046 267,744    
Total assets 5,807,752 4,223,145    
Current liabilities:        
Accounts payable and accrued liabilities 553,609 265,124    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 120 195    
Short-term derivative instruments 32,534 119,219    
Current maturities of long-term debt 622 276    
Total current liabilities 586,885 384,814    
Long-term derivative instruments 2,989 26,759    
Asset retirement obligation—long-term 74,980 34,081    
Other non-current liabilities 2,963 0    
Long-term debt, net of current maturities 2,038,321 1,593,599    
Total liabilities 2,706,138 2,039,253    
Stockholders’ equity:        
Common stock 1,831 1,588    
Paid-in capital 4,416,250 3,946,442    
Accumulated other comprehensive (loss) income (40,539) (53,058)    
Retained (deficit) earnings (1,275,928) (1,711,080)    
Total stockholders’ equity 3,101,614 2,183,892 2,038,837 2,296,296
Total liabilities and stockholders’ equity 5,807,752 4,223,145    
Parent        
Current assets:        
Cash and cash equivalents 67,908 1,273,882 112,494 141,535
Restricted cash   185,000    
Accounts receivable—oil and natural gas 128,121 137,087    
Accounts receivable - related parties 0 16    
Accounts receivable - intercompany 554,439 449,517    
Prepaid expenses and other current assets 4,719 3,135    
Short-term derivative instruments - asset 78,847 3,488    
Total current assets 834,034 2,052,125    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 6,562,147 5,655,125    
Other property and equipment 86,711 68,943    
Accumulated depletion, depreciation, amortization and impairment (4,153,696) (3,789,746)    
Property and equipment, net 2,495,162 1,934,322    
Other assets:        
Equity investments and investments in subsidiaries 2,361,575 236,327    
Long-term derivative instruments 8,685 5,696    
Deferred tax asset 1,208 4,692    
Inventories 5,816 3,095    
Other assets 12,483 8,932    
Total other assets 2,389,767 258,742    
Total assets 5,718,963 4,245,189    
Current liabilities:        
Accounts payable and accrued liabilities 416,249 255,966    
Accounts payable - intercompany 63,373 31,202    
Asset retirement obligation—current 120 195    
Short-term derivative instruments 32,534 119,219    
Current maturities of long-term debt 622 276    
Total current liabilities 512,898 406,858    
Long-term derivative instruments 2,989 26,759    
Asset retirement obligation—long-term 63,141 34,081    
Other non-current liabilities 0      
Long-term debt, net of current maturities 2,038,321 1,593,599    
Total liabilities 2,617,349 2,061,297    
Stockholders’ equity:        
Common stock 1,831 1,588    
Paid-in capital 4,416,250 3,946,442    
Accumulated other comprehensive (loss) income (40,539) (53,058)    
Retained (deficit) earnings (1,275,928) (1,711,080)    
Total stockholders’ equity 3,101,614 2,183,892    
Total liabilities and stockholders’ equity 5,718,963 4,245,189    
Guarantors        
Current assets:        
Cash and cash equivalents 31,649 1,993 479 804
Restricted cash   0    
Accounts receivable—oil and natural gas 54,092 37,496    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany 63,374 1,151    
Prepaid expenses and other current assets 193 0    
Short-term derivative instruments - asset 0 0    
Total current assets 149,308 40,640    
Property and equipment:        
Oil and natural gas properties, full-cost accounting 2,607,738 417,524    
Other property and equipment 43 43    
Accumulated depletion, depreciation, amortization and impairment (37) (34)    
Property and equipment, net 2,607,744 417,533    
Other assets:        
Equity investments and investments in subsidiaries 77,744 33,590    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Inventories 2,411 1,409    
Other assets 7,331 0    
Total other assets 87,486 34,999    
Total assets 2,844,538 493,172    
Current liabilities:        
Accounts payable and accrued liabilities 137,361 9,158    
Accounts payable - intercompany 554,313 457,163    
Asset retirement obligation—current 0 0    
Short-term derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities 691,674 466,321    
Long-term derivative instruments 0 0    
Asset retirement obligation—long-term 11,839 0    
Other non-current liabilities 2,963      
Long-term debt, net of current maturities 0 0    
Total liabilities 706,476 466,321    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 1,915,598 33,822    
Accumulated other comprehensive (loss) income 0 0    
Retained (deficit) earnings 222,464 (6,971)    
Total stockholders’ equity 2,138,062 26,851    
Total liabilities and stockholders’ equity 2,844,538 493,172    
Non-Guarantor        
Current assets:        
Cash and cash equivalents 0 0 1 1
Restricted cash 0 0    
Accounts receivable—oil and natural 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 - asset 0 0    
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 57,641 45,213    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Inventories 0 0    
Other assets 0 0    
Total other assets 57,641 45,213    
Total assets 57,641 45,213    
Current liabilities:        
Accounts payable and accrued liabilities 0 0    
Accounts payable - intercompany 127 126    
Asset retirement obligation—current 0 0    
Short-term derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities 127 126    
Long-term derivative instruments 0 0    
Asset retirement obligation—long-term 0 0    
Other non-current liabilities 0      
Long-term debt, net of current maturities 0 0    
Total liabilities 127 126    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 259,307 257,026    
Accumulated other comprehensive (loss) income (38,593) (50,931)    
Retained (deficit) earnings (163,200) (161,008)    
Total stockholders’ equity 57,514 45,087    
Total liabilities and stockholders’ equity 57,641 45,213    
Eliminations        
Current assets:        
Cash and cash equivalents 0 0 $ 0 $ 0
Restricted cash 0 0    
Accounts receivable—oil and natural gas   (37,822)    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany (617,813) (450,668)    
Prepaid expenses and other current assets 0 0    
Short-term derivative instruments - asset 0 0    
Total current assets (617,813) (488,490)    
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 (2,194,848) (71,210)    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Inventories 0 0    
Other assets 0 0    
Total other assets (2,194,848) (71,210)    
Total assets (2,813,390) (560,429)    
Current liabilities:        
Accounts payable and accrued liabilities (1) 0    
Accounts payable - intercompany (617,813) (488,491)    
Asset retirement obligation—current 0 0    
Short-term derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities (617,814) (488,491)    
Long-term derivative instruments 0 0    
Asset retirement obligation—long-term 0 0    
Other non-current liabilities 0      
Long-term debt, net of current maturities 0 0    
Total liabilities (617,814) (488,491)    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital (2,174,905) (290,848)    
Accumulated other comprehensive (loss) income 38,593 50,931    
Retained (deficit) earnings (59,264) 167,979    
Total stockholders’ equity (2,195,576) (71,938)    
Total liabilities and stockholders’ equity $ (2,813,390) $ (560,429)