Quarterly report pursuant to Section 13 or 15(d)

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

v3.10.0.1
Supplemental Guarantor Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Operating activities:        
Net income $ 46,260 $ (1,297) $ 109,983 $ 56,317
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation, depletion, amortization and accretion 36,969 36,489 114,807 116,843
Gain on exchange of debt       (7,811)
Amortization of debt items and other items     1,796 1,271
Share-based compensation     3,808 5,449
Derivative (gain) loss (288) 2,879 5,931 (4,765)
Cash receipts on derivative settlements, net     (3,091) 3,924
Deferred income taxes     363 321
Changes in operating assets and liabilities:        
Oil and natural gas receivables     (4,039) 3,906
Joint interest receivables     3,261 8
Insurance reimbursements       31,740
Income taxes     (139) 320
Prepaid expenses and other assets     (8,467) 2,194
Escrow deposit - Apache lawsuit       (49,500)
Asset retirement obligation settlements     (22,764) (56,226)
Cash advances from JV partners     27,014 (786)
Accounts payable, accrued liabilities and other     66,389 27,115
Net cash provided by operating activities     294,852 130,320
Investing activities:        
Investment in oil and natural gas properties and equipment     (59,161) (79,088)
Changes in operating assets and liabilities associated with investing activities     (20,261) 5,679
Acquisition of property interest     (16,782)
Purchases of furniture, fixtures and other       (905)
Proceeds from sale of assets     50,474
Net cash used in investing activities     (45,730) (74,314)
Financing activities:        
Other     (26) (372)
Net cash used in financing activities     (9,117) (20,078)
Increase in cash and cash equivalents     240,005 35,928
Cash and cash equivalents, beginning of period     99,058 70,236
Cash and cash equivalents, end of period 339,063 106,164 339,063 106,164
Parent Company        
Operating activities:        
Net income 46,959 (467) 116,626 58,666
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation, depletion, amortization and accretion 19,170 18,804 58,544 59,391
Gain on exchange of debt       (7,811)
Amortization of debt items and other items     1,796 1,271
Share-based compensation     3,808 5,449
Derivative (gain) loss (288) 2,879 5,931 (4,765)
Cash receipts on derivative settlements, net     (3,091) 3,924
Deferred income taxes     363 321
Earnings of affiliates (25,977) (13,251) (72,646) (49,719)
Changes in operating assets and liabilities:        
Oil and natural gas receivables     (2,281) (2,694)
Joint interest receivables     3,261 8
Insurance reimbursements       31,740
Income taxes     (18,382) (9,259)
Prepaid expenses and other assets     (36,764) 1,326
Escrow deposit - Apache lawsuit       (49,500)
Asset retirement obligation settlements     (15,860) (41,381)
Cash advances from JV partners     27,014 (786)
Accounts payable, accrued liabilities and other     196,880 127,387
Net cash provided by operating activities     265,199 123,568
Investing activities:        
Investment in oil and natural gas properties and equipment     (36,462) (68,831)
Changes in operating assets and liabilities associated with investing activities     (13,307) 2,174
Acquisition of property interest     (16,782)  
Purchases of furniture, fixtures and other       (905)
Proceeds from sale of assets     50,474  
Net cash used in investing activities     (16,077) (67,562)
Financing activities:        
Other     (26) (372)
Net cash used in financing activities     (9,117) (20,078)
Increase in cash and cash equivalents     240,005 35,928
Cash and cash equivalents, beginning of period     99,058 70,236
Cash and cash equivalents, end of period 339,063 106,164 339,063 106,164
Guarantor Subsidiaries        
Operating activities:        
Net income 25,977 13,251 72,646 49,719
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation, depletion, amortization and accretion 15,568 16,855 48,125 55,103
Changes in operating assets and liabilities:        
Oil and natural gas receivables     (1,194) 6,600
Income taxes     18,243 9,579
Prepaid expenses and other assets     (116,777) (95,523)
Asset retirement obligation settlements     (6,904) (14,845)
Accounts payable, accrued liabilities and other     8,157 (3,881)
Net cash provided by operating activities     22,296 6,752
Investing activities:        
Investment in oil and natural gas properties and equipment     (14,547) (10,257)
Changes in operating assets and liabilities associated with investing activities     (7,749) 3,505
Net cash used in investing activities     (22,296) (6,752)
Non-Guarantor Adjustments        
Operating activities:        
Net income 1,018   817  
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation, depletion, amortization and accretion 514   678  
Changes in operating assets and liabilities:        
Oil and natural gas receivables     (564)  
Prepaid expenses and other assets     9,297  
Accounts payable, accrued liabilities and other     (2,871)  
Net cash provided by operating activities     7,357  
Investing activities:        
Investment in oil and natural gas properties and equipment     (8,152)  
Changes in operating assets and liabilities associated with investing activities     795  
Net cash used in investing activities     (7,357)  
11.00% 1.5 Lien Term Loan, Due November 2019        
Financing activities:        
Payment of interest     (6,171) (6,170)
11.00% 1.5 Lien Term Loan, Due November 2019 | Parent Company        
Financing activities:        
Payment of interest     (6,171) (6,170)
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020        
Financing activities:        
Payment of interest     (2,920) (7,335)
9.00%/10.75% Second Lien PIK Toggle Notes, Due May 2020 | Parent Company        
Financing activities:        
Payment of interest     (2,920) (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 (27,694) (14,081) (80,106) (52,068)
Adjustments to reconcile net income to net cash provided by operating activities:        
Depreciation, depletion, amortization and accretion 1,717 830 7,460 2,349
Earnings of affiliates $ 25,977 $ 13,251 72,646 49,719
Changes in operating assets and liabilities:        
Prepaid expenses and other assets     135,777 96,391
Accounts payable, accrued liabilities and other     $ (135,777) $ (96,391)