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Transocean Ltd.

For the period ended Nov 2, 2026. Filed Nov 2, 2026.

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A notice of a major event between regular reports, such as results, a deal or a change of executives. It is often the first formal record of the news.

Nov 2, 2026 · Filed Nov 2, 2026

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RIG$5.24+2.7%Stored close · as of Nov 6, 2026
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EX-99.1 · Notes

Notes

(1)Revenue efficiency is defined as actual operating revenues, excluding revenues for contract terminations and reimbursements, for the measurement period divided by the maximum revenue calculated for the measurement period, expressed as a percentage. Maximum revenue is defined as the greatest amount of contract drilling revenues the drilling unit could earn for the measurement period, excluding revenues for incentive provisions, reimbursements and contract terminations. See the accompanying schedule entitled “Revenue Efficiency.”
(2)Contract backlog is defined as the maximum contractual operating dayrate multiplied by the number of days remaining in the firm contract period, including certain performance-based provisions for which achievement is probable, and excluding provisions for mobilization, demobilization, contract preparation, other incentive provisions or reimbursement revenues, which are not expected to be material to our contract drilling revenues. The contract backlog represents the maximum contract drilling revenues that can be earned considering the reported operating dayrate in effect during the firm contract period.
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