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
Mar. 31, 2017
Dec. 31, 2016
Mar. 31, 2016
Dec. 31, 2015
Current assets:        
Cash and cash equivalents $ 102,485 $ 1,275,875 $ 454,377 $ 112,974
Restricted Cash 0 185,000    
Accounts receivable—oil and gas 158,154 136,761    
Accounts receivable - related parties 39 16    
Accounts receivable - intercompany   0    
Prepaid expenses and other current assets 16,005 7,639    
Short-term derivative instruments 18,925 3,488    
Total current assets 295,608 1,608,779    
Property and equipment:        
Oil and natural gas properties 8,146,321 6,071,920    
Other property and equipment 75,107 68,986    
Accumulated depletion, depreciation, amortization and impairment (3,855,629) (3,789,780)    
Property and equipment, net 4,365,799 2,351,126    
Other assets:        
Equity investments and investments in subsidiaries 251,370 243,920    
Long-term derivative instruments 23,515 5,696    
Deferred tax asset 4,692 4,692    
Other assets 12,945 8,932    
Total other assets 292,522 263,240    
Total assets 4,953,929 4,223,145    
Current liabilities:        
Accounts payable and accrued liabilities 406,139 265,124    
Accounts payable - intercompany 0 0    
Asset retirement obligation—current 195 195 75  
Derivative instruments 67,179 119,219    
Current maturities of long-term debt 452 276    
Total current liabilities 473,965 384,814    
Long-term derivative instrument 5,259 26,759    
Asset retirement obligation—long-term 41,142 34,081 28,471  
Long-term debt, net of current maturities 1,631,809 1,593,599    
Total liabilities 2,152,175 2,039,253    
Stockholders’ equity:        
Common stock 1,828 1,588    
Paid-in capital 4,408,236 3,946,442    
Accumulated other comprehensive (loss) income (51,685) (53,058)    
Retained (deficit) earnings (1,556,625) (1,711,080)    
Total stockholders’ equity 2,801,754 2,183,892 2,220,789 2,038,837
Total liabilities and stockholders’ equity 4,953,929 4,223,145    
Reportable Legal Entities | Parent        
Current assets:        
Cash and cash equivalents 71,934 1,273,882 453,743 112,494
Restricted Cash   185,000    
Accounts receivable—oil and gas 106,008 137,087    
Accounts receivable - related parties 39 16    
Accounts receivable - intercompany 447,275 449,517    
Prepaid expenses and other current assets 12,330 6,230    
Short-term derivative instruments 18,925 3,488    
Total current assets 656,511 2,055,220    
Property and equipment:        
Oil and natural gas properties 5,869,066 5,655,125    
Other property and equipment 75,064 68,943    
Accumulated depletion, depreciation, amortization and impairment (3,855,594) (3,789,746)    
Property and equipment, net 2,088,536 1,934,322    
Other assets:        
Equity investments and investments in subsidiaries 2,120,462 236,327    
Long-term derivative instruments 23,515 5,696    
Deferred tax asset 4,692 4,692    
Other assets 8,765 8,932    
Total other assets 2,157,434 255,647    
Total assets 4,902,481 4,245,189    
Current liabilities:        
Accounts payable and accrued liabilities 326,175 255,966    
Accounts payable - intercompany 35,005 31,202    
Asset retirement obligation—current 195 195    
Derivative instruments 67,179 119,219    
Current maturities of long-term debt 452 276    
Total current liabilities 429,006 406,858    
Long-term derivative instrument 5,259 26,759    
Asset retirement obligation—long-term 34,653 34,081    
Long-term debt, net of current maturities 1,631,809 1,593,599    
Total liabilities 2,100,727 2,061,297    
Stockholders’ equity:        
Common stock 1,828 1,588    
Paid-in capital 4,408,236 3,946,442    
Accumulated other comprehensive (loss) income (51,685) (53,058)    
Retained (deficit) earnings (1,556,625) (1,711,080)    
Total stockholders’ equity 2,801,754 2,183,892    
Total liabilities and stockholders’ equity 4,902,481 4,245,189    
Reportable Legal Entities | Guarantors        
Current assets:        
Cash and cash equivalents 30,550 1,993 634 479
Restricted Cash   0    
Accounts receivable—oil and gas 52,146 37,496    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany 35,434 1,151    
Prepaid expenses and other current assets 3,675 1,409    
Short-term derivative instruments 0 0    
Total current assets 121,805 42,049    
Property and equipment:        
Oil and natural gas properties 2,277,984 417,524    
Other property and equipment 43 43    
Accumulated depletion, depreciation, amortization and impairment (35) (34)    
Property and equipment, net 2,277,992 417,533    
Other assets:        
Equity investments and investments in subsidiaries 40,661 33,590    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Other assets 4,180 0    
Total other assets 44,841 33,590    
Total assets 2,444,638 493,172    
Current liabilities:        
Accounts payable and accrued liabilities 79,964 9,158    
Accounts payable - intercompany 447,577 457,163    
Asset retirement obligation—current 0 0    
Derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities 527,541 466,321    
Long-term derivative instrument 0 0    
Asset retirement obligation—long-term 6,489 0    
Long-term debt, net of current maturities 0 0    
Total liabilities 534,030 466,321    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital 1,872,598 33,822    
Accumulated other comprehensive (loss) income 0 0    
Retained (deficit) earnings 38,010 (6,971)    
Total stockholders’ equity 1,910,608 26,851    
Total liabilities and stockholders’ equity 2,444,638 493,172    
Reportable Legal Entities | Non-Guarantor        
Current assets:        
Cash and cash equivalents 1 0 0 1
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 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 46,838 45,213    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Other assets 0 0    
Total other assets 46,838 45,213    
Total assets 46,839 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 257,700 257,026    
Accumulated other comprehensive (loss) income (49,613) (50,931)    
Retained (deficit) earnings (161,375) (161,008)    
Total stockholders’ equity 46,712 45,087    
Total liabilities and stockholders’ equity 46,839 45,213    
Eliminations        
Current assets:        
Cash and cash equivalents 0 0 $ 0 $ 0
Restricted Cash   0    
Accounts receivable—oil and gas   (37,822)    
Accounts receivable - related parties 0 0    
Accounts receivable - intercompany (482,709) (450,668)    
Prepaid expenses and other current assets 0 0    
Short-term derivative instruments 0 0    
Total current assets (482,709) (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 (1,956,591) (71,210)    
Long-term derivative instruments 0 0    
Deferred tax asset 0 0    
Other assets 0 0    
Total other assets (1,956,591) (71,210)    
Total assets (2,440,029) (560,429)    
Current liabilities:        
Accounts payable and accrued liabilities 0 0    
Accounts payable - intercompany (482,709) (488,491)    
Asset retirement obligation—current 0 0    
Derivative instruments 0 0    
Current maturities of long-term debt 0 0    
Total current liabilities (482,709) (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 (482,709) (488,491)    
Stockholders’ equity:        
Common stock 0 0    
Paid-in capital (2,130,298) (290,848)    
Accumulated other comprehensive (loss) income 49,613 50,931    
Retained (deficit) earnings 123,365 167,979    
Total stockholders’ equity (1,957,320) (71,938)    
Total liabilities and stockholders’ equity $ (2,440,029) $ (560,429)