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Communications:
Guy Cantwell (email)
(713) 232-7647

Investor Relations:
R. Thaddeus Vayda (email)
(713) 232-7551

Investor Relations:
Diane Vento (email)
(713) 232-8015

Investor Relations  Shareholder Services  Shareholder Services
Transfer Agent and Registrar
Computershare Shareowner Services LLC
P.O. Box 358015
Pittsburgh, PA 15252
Phone: 1.877.397.7229 (toll-free)
Over seas: 1.212.815.3700
E-Mail: shrrelations@bnymellon.com
Internet: www.computershare.com
Auditors
Ernst & Young LLP
Houston, Texas

Ernst & Young Ltd.
Zurich, Switzerland

Direct Purchase Plan Information
Computershare Shareowner Services LLC, the Transfer Agent for Transocean Ltd., offers a direct purchase and sale plan for the shares of Transocean Ltd. The plan, BuyDirect, provides both registered stockholders and interested first-time investors an affordable alternative for buying and selling the company's shares.

For more information on the plan including a complete enrollment package, please contact Computershare at 1-877-397-7229 (toll-free) or via their website at www.computershare.com.