PRESS RELEASE: Transocean Ltd. to Present at the Credit Suisse 2013 Energy Summit

Transocean Ltd. / Transocean Ltd. to Present at the Credit Suisse 2013 Energy Summit . Processed and transmitted by Thomson Reuters ONE. The issuer is solely responsible for the content of this announcement.

ZUG, SWITZERLAND--(Marketwire - January 31, 2013) - Transocean Ltd. (NYSE: RIG) (SIX: RIGN) today announced that Steven L. Newman, President and Chief Executive Officer of the company, will address attendees at the Credit Suisse 2013 Energy Summit in Vail, Colorado. Mr. Newman is scheduled to present on Tuesday, February 5, 2013, at 10:25 a.m., MST.

A live broadcast of the presentation and a replay will be publicly accessible through the company's web site at www.deepwater.com. Go to the "Investor Relations" link and select "News & Events," followed by "Presentations." Participants are encouraged to log onto the site at least 15 minutes before the scheduled presentation to ensure that minimum software requirements are met.

About Transocean

Transocean is a leading international provider of offshore contract drilling services for oil and gas wells. The company specializes in technically demanding sectors of the global offshore drilling business with a particular focus on deepwater and harsh environment drilling services, and believes that it operates one of the most versatile offshore drilling fleets in the world.

Transocean owns or has partial ownership interests in, and operates a fleet of, 82 mobile offshore drilling units consisting of 48 High-Specification Floaters (Ultra-Deepwater, Deepwater and Harsh-Environment drilling rigs), 25 Midwater Floaters and nine High-Specification Jackups. In addition, we have six Ultra- Deepwater Drillships and three High-Specification Jackups under construction.

For more information about Transocean, please visit the website www.deepwater.com.

Analyst Contacts: Thad Vayda +1 713-232-7551

Diane Vento +1 713-232-8015

Media Contact: Guy A. Cantwell +1 713-232-7647

This announcement is distributed by Thomson Reuters on behalf of Thomson Reuters clients. The owner of this announcement warrants that: (i) the releases contained herein are protected by copyright and other applicable laws; and (ii) they are solely responsible for the content, accuracy and originality of the information contained therein.

Source: Transocean Ltd. via Thomson Reuters ONE [HUG#1674812]

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Transocean Ltd. Chemin de Blandonnet 10 Vernier Switzerland

ISIN: CH0048265513;

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   January 31, 2013 16:15 ET (21:15 GMT)- - 04 15 PM EST 01-31-13