ZUG, SWITZERLAND--(Marketwire - February 14, 2012) - Transocean Ltd. (NYSE: RIG) (SIX: RIGN) today issued a monthly fleet update summary which includes newly signed contracts, significant changes to existing contracts, and estimated out of service time since our quarterly fleet status report dated January 16, 2012. The Fleet Status now reflects changes in estimated out of service time of 15 days or longer for all rig classifications since the previously issued comprehensive report. It can be accessed at www.deepwater.com by clicking on the Fleet Status Report link found in the toolbar.

Forward-Looking Statements
Statements regarding the estimated duration of client contracts, contract dayrate amounts, future contract commencement dates and locations, planned shipyard projects and other out of service time, as well as any other statements that are not historical facts in the report, are forward-looking statements that involve certain risks, uncertainties and assumptions. These include but are not limited to operating hazards and delays, risks associated with international operations, actions by customers and other third parties, the future prices of oil and gas and other factors detailed in the company's most recent Form 10-K and other filings with the Securities and Exchange Commission. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those indicated.

About Transocean
Transocean is a leading international provider of offshore contract drilling services for oil and gas wells. Transocean owns or has partial ownership interests in and operates a fleet of 134 mobile offshore drilling units consisting of 50 High-Specification Floaters (Ultra-Deepwater, Deepwater and Harsh-Environment semisubmersibles and drillships), 25 Midwater Floaters, nine High-Specification Jackups, 49 Standard Jackups and one swamp barge. In addition, we have two Ultra-Deepwater Drillships and four High-Specification Jackups under construction. Transocean's fleet specializes in technically demanding sectors of the global offshore drilling business with a particular focus on deepwater and harsh environment drilling services. We believe we operate one of the most versatile mobile offshore drilling fleets in the world.
For more information about Transocean, please visit our website at www.deepwater.com. 

Contact Information
Analyst Contacts:

Thad Vayda
+1 713-232-7551

Chris Kettmann
+1 713-232-7420

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