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Debt and Credit Agreements | 9 Months Ended
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Sep. 30, 2018
Debt Disclosure [Abstract] |
Debt and Credit Agreements | Debt and Credit Agreements The Company’s debt and credit agreements consisted of the following:
(In thousands) |  | September 30, 2018 |  | December 31, 2017
Total debt |  |  |  |
6.51% weighted-average senior notes (1) |  | $ | 124,000 |  |  | $ | 361,000 |
9.78% senior notes (2) |  | 67,000 |  |  | 67,000 |
5.58% weighted-average senior notes |  | 175,000 |  |  | 175,000 |
3.65% weighted-average senior notes |  | 925,000 |  |  | 925,000 |
Revolving credit facility |  | — |  |  | — |
Unamortized debt issuance costs |  | (5,152 | ) |  | (6,109 | )
|  | $ | 1,285,848 |  |  | $ | 1,521,891 |
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(1) | Includes $237.0 million of current portion of long-term debt at December 31, 2017, which the Company paid in July 2018.
(2) | Includes $67.0 million of current portion of long-term debt at September 30, 2018 and December 31, 2017, respectively.
The borrowing base under the terms of the Company's revolving credit facility is redetermined annually in April. In addition, either the Company or the banks may request an interim redetermination twice a year or in connection with certain acquisitions or divestitures of oil and gas properties. Effective April 18, 2018, the borrowing base and available commitments were reaffirmed at $3.2 billion and $1.7 billion, respectively. At September 30, 2018, the Company had no borrowings outstanding under its revolving credit facility and had unused commitments of $1.8 billion. At September 30, 2018, the Company was in compliance with all restrictive financial covenants for both its revolving credit facility and senior notes.

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- Definition The entire disclosure for long-term debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -URI http://asc.fasb.org/topic&trid=2208564 + Details
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