Quarterly report pursuant to Section 13 or 15(d)

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

v3.7.0.1
Condensed Consolidating Financial Information (Condensed Consolidating Balance Sheets) (Details) - USD ($)
$ in Thousands
Jun. 30, 2017
Dec. 31, 2016
Jun. 30, 2016
Dec. 31, 2015
Current assets:        
Cash and cash equivalents $ 117,555 $ 1,275,875 $ 396,437 $ 112,974
Restricted Cash 0 185,000    
Accounts receivable—oil and natural gas 164,154 136,761    
Accounts receivable - related parties 185 16    
Accounts receivable - intercompany   0    
Prepaid expenses and other current assets 4,279 3,135    
Short-term derivative instruments 46,416 3,488    
Total current assets 332,589 1,604,275    
Property and equipment:        
Oil and natural gas properties 8,500,790 6,071,920    
Other property and equipment 79,521 68,986    
Accumulated depletion, depreciation, amortization and impairment (3,937,656) (3,789,780)    
Property and equipment, net 4,642,655 2,351,126    
Other assets:        
Equity investments and investments in subsidiaries 256,265 243,920    
Long-term derivative instruments 19,761 5,696    
Deferred tax asset 4,692 4,692    
Inventories 19,303 4,504    
Other assets 18,890 8,932    
Total other assets 318,911 267,744    
Total assets 5,294,155 4,223,145    
Current liabilities:        
Accounts payable and accrued liabilities 495,734 265,124    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 195 195 75  
Derivative instruments 28,106 119,219    
Current maturities of long-term debt 595 276    
Total current liabilities 524,630 384,814    
Long-term derivative instrument 8,198 26,759    
Asset retirement obligation—long-term 43,934 34,081 29,993  
Long-term debt, net of current maturities 1,802,554 1,593,599    
Total liabilities 2,379,316 2,039,253    
Stockholders’ equity:        
Common stock 1,828 1,588    
Paid-in capital 4,410,871 3,946,442    
Accumulated other comprehensive (loss) income (47,171) (53,058)    
Retained (deficit) earnings (1,450,689) (1,711,080)    
Total stockholders’ equity 2,914,839 2,183,892 1,883,440 2,038,837
Total liabilities and stockholders’ equity 5,294,155 4,223,145    
Reportable Legal Entities | Parent        
Current assets:        
Cash and cash equivalents 72,062 1,273,882 395,703 112,494
Restricted Cash   185,000    
Accounts receivable—oil and natural gas 121,565 137,087    
Accounts receivable - related parties 185 16    
Accounts receivable - intercompany 459,503 449,517    
Prepaid expenses and other current assets 4,113 3,135    
Short-term derivative instruments 46,416 3,488    
Total current assets 703,844 2,052,125    
Property and equipment:        
Oil and natural gas properties 6,142,757 5,655,125    
Other property and equipment 79,478 68,943    
Accumulated depletion, depreciation, amortization and impairment (3,937,621) (3,789,746)    
Property and equipment, net 2,284,614 1,934,322    
Other assets:        
Equity investments and investments in subsidiaries 2,179,931 236,327    
Long-term derivative instruments 19,761 5,696    
Deferred tax asset 4,692 4,692    
Inventories 13,591 3,095    
Other assets 10,834 8,932    
Total other assets 2,228,809 258,742    
Total assets 5,217,267 4,245,189    
Current liabilities:        
Accounts payable and accrued liabilities 385,908 255,966    
Accounts payable - intercompany 39,564 31,202    
Asset retirement obligation—current 195 195    
Derivative instruments 28,106 119,219    
Current maturities of long-term debt 595 276    
Total current liabilities 454,368 406,858    
Long-term derivative instrument 8,198 26,759    
Asset retirement obligation—long-term 37,308 34,081    
Long-term debt, net of current maturities 1,802,554 1,593,599    
Total liabilities 2,302,428 2,061,297    
Stockholders’ equity:        
Common stock 1,828 1,588    
Paid-in capital 4,410,871 3,946,442    
Accumulated other comprehensive (loss) income (47,171) (53,058)    
Retained (deficit) earnings (1,450,689) (1,711,080)    
Total stockholders’ equity 2,914,839 2,183,892    
Total liabilities and stockholders’ equity 5,217,267 4,245,189    
Reportable Legal Entities | Guarantors        
Current assets:        
Cash and cash equivalents 45,493 1,993 733 479
Restricted Cash   0    
Accounts receivable—oil and natural gas 42,589 37,496    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany 45,749 1,151    
Prepaid expenses and other current assets 166 0    
Short-term derivative instruments 0 0    
Total current assets 133,997 40,640    
Property and equipment:        
Oil and natural gas properties 2,358,762 417,524    
Other property and equipment 43 43    
Accumulated depletion, depreciation, amortization and impairment (35) (34)    
Property and equipment, net 2,358,770 417,533    
Other assets:        
Equity investments and investments in subsidiaries 52,946 33,590    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Inventories 5,712 1,409    
Other assets 8,056 0    
Total other assets 66,714 34,999    
Total assets 2,559,481 493,172    
Current liabilities:        
Accounts payable and accrued liabilities 109,826 9,158    
Accounts payable - intercompany 465,561 457,163    
Asset retirement obligation—current 0 0    
Derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities 575,387 466,321    
Long-term derivative instrument 0 0    
Asset retirement obligation—long-term 6,626 0    
Long-term debt, net of current maturities 0 0    
Total liabilities 582,013 466,321    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 1,885,598 33,822    
Accumulated other comprehensive (loss) income 0 0    
Retained (deficit) earnings 91,870 (6,971)    
Total stockholders’ equity 1,977,468 26,851    
Total liabilities and stockholders’ equity 2,559,481 493,172    
Reportable Legal Entities | Non-Guarantor        
Current assets:        
Cash and cash equivalents 0 0 1 1
Restricted Cash   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 0 0    
Total current assets 0 0    
Property and equipment:        
Oil and natural gas properties 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 51,605 45,213    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Inventories 0 0    
Other assets 0 0    
Total other assets 51,605 45,213    
Total assets 51,605 45,213    
Current liabilities:        
Accounts payable and accrued liabilities 0 0    
Accounts payable - intercompany 127 126    
Asset retirement obligation—current 0 0    
Derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities 127 126    
Long-term derivative instrument 0 0    
Asset retirement obligation—long-term 0 0    
Long-term debt, net of current maturities 0 0    
Total liabilities 127 126    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 258,178 257,026    
Accumulated other comprehensive (loss) income (45,117) (50,931)    
Retained (deficit) earnings (161,583) (161,008)    
Total stockholders’ equity 51,478 45,087    
Total liabilities and stockholders’ equity 51,605 45,213    
Eliminations        
Current assets:        
Cash and cash equivalents 0 0 $ 0 $ 0
Restricted Cash   0    
Accounts receivable—oil and natural gas 0 (37,822)    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany (505,252) (450,668)    
Prepaid expenses and other current assets 0 0    
Short-term derivative instruments 0 0    
Total current assets (505,252) (488,490)    
Property and equipment:        
Oil and natural gas properties (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 (2,028,217) (71,210)    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Inventories 0 0    
Other assets 0 0    
Total other assets (2,028,217) (71,210)    
Total assets (2,534,198) (560,429)    
Current liabilities:        
Accounts payable and accrued liabilities 0 0    
Accounts payable - intercompany (505,252) (488,491)    
Asset retirement obligation—current 0 0    
Derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities (505,252) (488,491)    
Long-term derivative instrument 0 0    
Asset retirement obligation—long-term 0 0    
Long-term debt, net of current maturities 0 0    
Total liabilities (505,252) (488,491)    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital (2,143,776) (290,848)    
Accumulated other comprehensive (loss) income 45,117 50,931    
Retained (deficit) earnings 69,713 167,979    
Total stockholders’ equity (2,028,946) (71,938)    
Total liabilities and stockholders’ equity $ (2,534,198) $ (560,429)