Quarterly report pursuant to Section 13 or 15(d)

Supplemental Guarantor Information - Condensed Consolidating Statement of Cash Flows (Details)

v3.7.0.1
Supplemental Guarantor Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Operating activities:        
Net income (loss) $ 33,315 $ (120,922) $ 57,614 $ (311,431)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:        
Depreciation, depletion, amortization and accretion 40,364 57,493 80,354 121,226
Ceiling test write-down of oil and natural gas properties   104,592   221,151
Gain on exchange of debt (8,056)   (7,811)  
Debt issuance costs write-off/ amortization of debt items     836 1,880
Share-based compensation     3,466 5,121
Derivative (gain) loss (3,689) 4,942 (7,644) 2,449
Cash receipts on derivative settlements, net     2,208 4,746
Deferred income taxes     212 19,285
Changes in operating assets and liabilities:        
Oil and natural gas receivables     3,675 1,226
Joint interest receivables     1,965 1,763
Insurance reimbursements     30,100  
Income taxes     (16,960) (57,931)
Prepaid expenses and other assets     (3,575) (10,365)
Escrow deposit - Apache lawsuit     (49,500)  
Asset retirement obligation settlements     (36,021) (25,156)
Accounts payable, accrued liabilities and other     6,666 14,767
Net cash provided by (used in) operating activities     65,585 (11,269)
Investing activities:        
Investment in oil and natural gas properties and equipment     (43,800) (17,712)
Changes in operating assets and liabilities associated with investing activities     (827) (34,122)
Proceeds from sales of assets       1,500
Purchases of furniture, fixtures and other     (853) (70)
Net cash used in investing activities     (45,480) (50,404)
Financing activities:        
Borrowings of long-term debt - revolving bank credit facility       340,000
Repayments of long-term debt - revolving bank credit facility       (192,000)
Other     (372) 83
Net cash provided by (used in) financing activities     (18,021) 148,083
Increase in cash and cash equivalents     2,084 86,410
Cash and cash equivalents, beginning of period     70,236 85,414
Cash and cash equivalents, end of period 72,320 171,824 72,320 171,824
Parent Company        
Operating activities:        
Net income (loss) 34,103 (48,427) 59,133 (167,812)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:        
Depreciation, depletion, amortization and accretion 21,433 22,648 40,587 43,271
Gain on exchange of debt (8,056)   (7,811)  
Debt issuance costs write-off/ amortization of debt items     836 1,880
Share-based compensation     3,466 5,121
Derivative (gain) loss (3,689) 4,942 (7,644) 2,449
Cash receipts on derivative settlements, net     2,208 4,746
Deferred income taxes     212 21,099
Earnings (loss) of affiliates (18,941) 40,765 (36,468) 113,794
Changes in operating assets and liabilities:        
Oil and natural gas receivables     (1,095) 1,177
Joint interest receivables     1,965 1,763
Insurance reimbursements     30,100  
Income taxes     (25,487) (57,931)
Prepaid expenses and other assets     (3,165) (9,405)
Escrow deposit - Apache lawsuit     (49,500)  
Asset retirement obligation settlements     (25,044) (12,702)
Accounts payable, accrued liabilities and other     81,785 (783)
Net cash provided by (used in) operating activities     64,078 (53,333)
Investing activities:        
Investment in oil and natural gas properties and equipment     (41,854) (8,600)
Changes in operating assets and liabilities associated with investing activities     (1,266) (670)
Proceeds from sales of assets       1,000
Purchases of furniture, fixtures and other     (853) (70)
Net cash used in investing activities     (43,973) (8,340)
Financing activities:        
Borrowings of long-term debt - revolving bank credit facility       340,000
Repayments of long-term debt - revolving bank credit facility       (192,000)
Other     (372) 83
Net cash provided by (used in) financing activities     (18,021) 148,083
Increase in cash and cash equivalents     2,084 86,410
Cash and cash equivalents, beginning of period     70,236 85,414
Cash and cash equivalents, end of period 72,320 171,824 72,320 171,824
Guarantor Subsidiaries        
Operating activities:        
Net income (loss) 18,941 (40,765) 36,468 (113,794)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:        
Depreciation, depletion, amortization and accretion 18,143 31,934 38,248 70,095
Ceiling test write-down of oil and natural gas properties   35,008   85,392
Deferred income taxes       (1,814)
Changes in operating assets and liabilities:        
Oil and natural gas receivables     4,770 49
Income taxes     8,527  
Prepaid expenses and other assets     (74,591) (17,424)
Asset retirement obligation settlements     (10,977) (12,454)
Accounts payable, accrued liabilities and other     (938) 32,014
Net cash provided by (used in) operating activities     1,507 42,064
Investing activities:        
Investment in oil and natural gas properties and equipment     (1,946) (9,112)
Changes in operating assets and liabilities associated with investing activities     439 (33,452)
Proceeds from sales of assets       500
Net cash used in investing activities     (1,507) (42,064)
11.00% 1.5 Lien Term Loan, Due November 2019        
Financing activities:        
Payment of interest     (4,113)  
11.00% 1.5 Lien Term Loan, Due November 2019 | Parent Company        
Financing activities:        
Payment of interest     (4,113)  
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020        
Financing activities:        
Payment of interest     (7,335)  
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Parent Company        
Financing activities:        
Payment of interest     (7,335)  
8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021        
Financing activities:        
Payment of interest     (6,201)  
8.50%/10.00% Third Lien PIK Toggle Notes, Due June 2021 | Parent Company        
Financing activities:        
Payment of interest     (6,201)  
Eliminations        
Operating activities:        
Net income (loss) (19,729) (31,730) (37,987) (29,825)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:        
Depreciation, depletion, amortization and accretion 788 2,911 1,519 7,860
Ceiling test write-down of oil and natural gas properties   69,584   135,759
Earnings (loss) of affiliates $ 18,941 $ (40,765) 36,468 (113,794)
Changes in operating assets and liabilities:        
Prepaid expenses and other assets     74,181 16,464
Accounts payable, accrued liabilities and other     $ (74,181) $ (16,464)