Company: RIG
Filing Date: 2025-09-24
Form Type: 424B5
Source: 0001451505-25-000097
Chunk: 62

Company: Transocean Ltd.
Filing Date: 2025-09-24
Form: 424B5
Chunk 62
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#### ABOUT TRANSOCEAN LTD.
Transocean Ltd. is a leading international provider of offshore contract drilling services for oil and gas wells. As of June 28, 2024, we owned or had partial ownership interests in and operated 36 mobile offshore drilling units, consisting of 28 ultra-deepwater floaters and eight harsh environment floaters.

We provide, as our primary business, contract drilling services in a single operating segment, which involves contracting our mobile offshore drilling rigs, related equipment and work crews to drill oil and gas wells. We specialize in technically demanding regions of the global offshore drilling business with a particular focus on ultra-deepwater and harsh environment drilling services. Our drilling fleet is one of the most versatile fleets in the world, consisting of drillships and semisubmersible floaters used in support of offshore drilling activities and offshore support services on a worldwide basis.

We perform contract drilling services by deploying our high-specification fleet in a single, global market that is geographically dispersed in oil and gas exploration and development areas throughout the world. Although rigs can be moved from one region to another, the cost of moving rigs and the availability of rig-moving vessels may cause the supply and demand balance to fluctuate somewhat between regions. Still, significant variations between regions do not tend to persist long term because of rig mobility. The location of our rigs and the allocation of resources to operate, build or upgrade our rigs are determined by the activities and needs of our customers.

Transocean Ltd. is a Swiss corporation with its registered office in Steinhausen, Canton of Zug and with principal executive offices located at Turmstrasse 30, 6312 Steinhausen, Switzerland. Transocean Ltd.’s telephone number at that address is +41 (41) 749 0500. Shares of Transocean Ltd.’s common stock are listed on the NYSE under the symbol “RIG.”

#### ABOUT TRANSOCEAN INC.
Transocean Inc. is a direct, wholly owned subsidiary of Transocean Ltd. Transocean Inc. is the issuer of certain notes and debentures that have been guaranteed by Transocean Ltd. Transocean Inc.’s principal executive offices are located at 36C Dr. Roy’s Drive, Bermuda House, 4th Floor, George Town, Grand Cayman, Cayman Islands KY1-1003, and its telephone number at that address is +1 (345) 745 4500.

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