Transocean to Delist From SIX Swiss Exchange

Transocean Ltd.

announced today its intent to delist its shares from the SIX Swiss Exchange (SIX). The company expects the SIX listing authorities to approve its delisting application prior to year-end and the related delisting to occur in the first quarter of 2016. The company will remain incorporated in Switzerland and its shares will continue to be listed and traded on the New York Stock Exchange (NYSE). Forward-Looking Statements The statements described in this press release that are not historical facts are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. These statements contain words such as "possible," "intend," "will," "if," "expect" or other similar expressions. Forward-looking statements are based on management's current expectations and assumptions, and are subject to inherent uncertainties, risks and changes in circumstances that are difficult to predict. As a result, actual results could differ materially from those indicated in these forward-looking statements. Factors that could cause actual results to differ materially include, but are not limited to, changes in tax estimates, impairment of goodwill, asset impairments, operating hazards