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Debt | 9 Months Ended
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Sep. 30, 2025
Debt Disclosure [Abstract] |
Debt | Note 6 — Debt Amended and Restated Senior Secured Revolving Credit Agreement In April 2023, Noble entered into the Amended and Restated Senior Secured Revolving Credit Agreement, dated April 18, 2023, and as amended on June 24, 2024 (the “2023 Revolving Credit Agreement”), by and among Noble Finance II LLC (“Noble Finance II”), Noble International Finance Company, Noble Drilling A/S, and certain additional subsidiaries of Noble Finance II as from time to time designated by Noble Finance II, as borrowers, the lenders and issuing banks party thereto from time to time, and JPMorgan Chase Bank, N.A., as administrative agent, collateral agent, and security trustee. The revolving credit facility under the 2023 Revolving Credit Agreement (the “2023 Revolving Credit Facility”) provides for commitments of $550.0 million with maturity in 2028. The guarantors (the “Guarantors”) under the 2023 Revolving Credit Facility are the same subsidiaries of Noble Finance II that are or will be guarantors of the 2030 Notes (as defined below). As of September 30, 2025, we had no borrowings outstanding and $18.0 million of letters of credit issued under the 2023 Revolving Credit Agreement. 8.000% Senior Notes due 2030 On April 18, 2023, Noble Finance II, a wholly owned subsidiary of Noble, issued $600.0 million in aggregate principal amount of its 8.000% Senior Notes due 2030 (the “Initial 2030 Notes”). On August 22, 2024, Noble Finance II issued an additional $800.0 million in aggregate principal amount of its 8.000% Senior Notes due 2030 (the “Additional 2030 Notes” and, together with the Initial 2030 Notes, the “2030 Notes”) at a premium of 103% bringing the total outstanding principal amount to $1.4 billion. The 2030 Notes were issued pursuant to an indenture, dated April 18, 2023 (as supplemented or otherwise modified from time to time, the “Noble Indenture”), among Noble Finance II, certain subsidiaries of Noble Finance II party thereto, as guarantors, and U.S. Bank Trust Company, National Association, as trustee, paying agent, and registrar. The 2030 Notes are unconditionally guaranteed on a senior unsecured basis by the Guarantors and will be unconditionally guaranteed on the same basis by certain of Noble Finance II’s future subsidiaries that guarantee certain indebtedness of Noble Finance II and the Guarantors, including the 2023 Revolving Credit Facility. The 2030 Notes will mature on April 15, 2030, and interest on the 2030 Notes is payable semi-annually in arrears on each April 15 and October 15, commencing October 15, 2023, to holders of record on the April 1 and October 1 immediately preceding the related interest payment date, at a rate of 8.000% per annum. 8.500% Senior Secured Second Lien Notes due 2030 On September 21, 2023, Diamond Foreign Asset Company and Diamond Finance, LLC (collectively referred to as the “Issuers”) issued $550.0 million aggregate principal amount of 8.500% Senior Secured Second Lien Notes due October 2030 (the “Diamond Second Lien Notes”) with interest payable semi-annually in arrears on April 1 and October 1 of each year, beginning on April 1, 2024. The Diamond Second Lien Notes are fully and unconditionally guaranteed, jointly and severally, on a senior secured basis by Noble Offshore Drilling, Inc. (formerly known as Dolphin Merger Sub 2, Inc. and as successor by merger with Diamond Offshore Drilling, Inc.) (“NODI”) and each of its existing restricted subsidiaries (other than the Issuers) and by certain of NODI’s future restricted subsidiaries. The Diamond Second Lien Notes obligate NODI and its subsidiaries to comply with an indenture dated as of September 21, 2023 (as supplemented and otherwise modified from time to time, the “Diamond Second Lien Indenture”), among the Issuers, NODI, certain of its subsidiaries party thereto, as guarantors, and HSBC Bank USA, National Association, as trustee and collateral agent. The Diamond Second Lien Indenture contains covenants that, among other things, restrict NODI’s ability and the ability of certain of its subsidiaries to: (i) incur additional debt and issue certain preferred stock; (ii) incur or create liens; (iii) make certain dividends, distributions, investments, and other restricted payments; (iv) sell or otherwise dispose of certain assets; (v) engage in certain transactions with affiliates; and (vi) merge, consolidate, amalgamate, or sell, transfer, lease, or otherwise dispose of all, or substantially all, of the assets of NODI and such subsidiaries taken as a whole. These covenants are subject to important exceptions and qualifications. Diamond Credit Agreement On September 4, 2024, in connection with the closing of the Diamond Transaction, Noble terminated Diamond’s $300.0 million senior secured revolving credit facility under the Diamond Credit Agreement (as defined herein). The revolving commitments under the Diamond Credit Agreement were scheduled to mature on April 22, 2026. At the time of the Diamond Transaction and the termination of the commitments under the Diamond Credit Agreement, Diamond had no outstanding borrowings under the Diamond Credit Agreement. Fair Value of Debt Fair value represents the amount at which an instrument could be exchanged in a current transaction between willing parties. The estimated fair value of our debt instruments was based on the quoted market prices for similar issues or on the current rates offered to us for debt of similar remaining maturities (Level 2 measurement). The fair value of the 2023 Revolving Credit Facility approximates its respective carrying amount as its interest rate is variable and reflective of market rates. The following table presents the carrying value, net of unamortized debt issuance costs and discounts or premiums, and the estimated fair value of our total debt, not including the effect of unamortized debt issuance costs, respectively:
|  | September 30, 2025 |  | December 31, 2024
|  | Carrying Value |  | Estimated Fair Value |  | Carrying Value |  | Estimated Fair Value
Senior secured notes |  |  |  |  |  |  |  |
8.000% Senior Notes due April 2030 |  | $ | 1,401,041 |  |  | $ | 1,449,784 |  |  | $ | 1,401,214 |  |  | $ | 1,414,266 |
8.500% Senior Secured Second Lien Notes due October 2030 |  | 575,878 |  |  | 583,193 |  |  | 578,972 |  |  | 571,428 |
Credit facility |  |  |  |  |  |  |  |
Amended and Restated Senior Secured Revolving Credit Facility |  | — |  |  | — |  |  | — |  |  | — |
Total debt |  | 1,976,919 |  |  | 2,032,977 |  |  | 1,980,186 |  |  | 1,985,694 |
Less: Current maturities of long-term debt |  | — |  |  | — |  |  | — |  |  | — |
Long-term debt |  | $ | 1,976,919 |  |  | $ | 2,032,977 |  |  | $ | 1,980,186 |  |  | $ | 1,985,694 |

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