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Transocean Inc. Reports Ruling on Patent Infringement Lawsuit

September 1, 2006

HOUSTON--(BUSINESS WIRE)--Aug. 31, 2006--Transocean Inc.(NYSE:RIG) today announced that a jury in its patent infringementaction against GlobalSantaFe (NYSE:GSF) in the United States DistrictCourt in Houston, Texas, with respect to its dual activity patents hasfound in favor of Transocean and sustained the validity ofTransocean's U.S. patents. The court had previously ruled in late 2005that GlobalSantaFe's Development Driller I and Development Driller IIsemisubmersible rigs infringed certain of Transocean's U.S. patents.

Transocean Inc. is the world's largest offshore drillingcontractor with a fleet of 83 mobile offshore drilling units. Thecompany's mobile offshore drilling fleet, consisting of a large numberof high-specification deepwater and harsh environment drilling units,is considered one of the most modern and versatile in the world due toits emphasis on technically demanding segments of the offshoredrilling business. The company's fleet consists of 33High-Specification Floaters (semisubmersibles and drillships), 20Other Floaters, 25 Jackups and other assets utilized in the support ofoffshore drilling activities worldwide. With a current equity marketcapitalization in excess of $21 billion, Transocean Inc.'s ordinaryshares are traded on the New York Stock Exchange under the symbol\"RIG.\"

    CONTACT: Transocean Inc., Houston             Analyst Contact:             Jeffrey L. Chastain, 713-232-7551             or             Media Contact:             Guy A. Cantwell, 713-232-7647    SOURCE: Transocean Inc.