NYSE: RIG 3.02 0.2 6.21% 1:00 P.M. ET Transocean MENU BOUNDLESS At Transocean, we are closely monitoring and following guidance provided by the World Health Organization (WHO) and the Centers for Disease Control and Prevention (CDC) to protect and keep our workers offshore and onshore healthy and safe. Learn more about our efforts below. COVID-19 PRESS RELEASE / 11.01.2021 - Transocean Ltd. Reports Third Quarter 2021 Results read more > PERFORMANCE More collaborative. More efficient. More productive. PROVE IT OUR FLEET Ultra-deepwater and harsh-environment floaters. Whatever your job demands, we are ready to respond and deliver, with the right assets, anywhere in the world. EXPLORE THE FLEET ULTRA-DEEPWATER WHERE WE OPERATE In the deepest waters and the harshest environments - where you need us to be, we're there. REGION: North America REGION: South America REGION: Norway REGION: UK North Sea & Northern Europe REGION: Black Sea, Mediterranean, North & Sub-Saharan Africa REGION: Middle East & South Asia REGION: Australia & Southeast Asia VIEW MARKETING CONTACTS SAFETY Protecting people, the environment, and equipment as we drill the wells our customers require. STEP ONTO A SAFER RIG OUR PEOPLE Experience a professional work environment that encourages collaboration, where a committed team can exceed expectations. BROWSE POSITIONS INVESTORS NYSE: RIG 3.02 0.2 6.21% 1:00 P.M. ET ANALYZE THE NUMBERS CONTACT US Your goals and your success align with our mission. LET'S COLLABORATE BACK TO TOP Transocean ABOUT CONTACT ©2021 TRANSOCEAN LTD. LEGAL/PRIVACY NOTICE

NYSE: RIG 3.02 0.2 6.21% 1:00 P.M. ET Transocean MENU IRS FORMS 8937 The information contained herein and in the attachment does not constitute tax, accounting or legal advice and does not purport to be complete or to describe the consequences that may apply to particular categories of securityholders. Transocean does not provide tax, accounting or legal advice. Any tax statements contained herein and in the attachment were not intended or written to be used, and cannot be used, for the purpose of avoiding penalties imposed under the Internal Revenue Code. You are urged to consult your own tax advisor regarding the particular consequences of the distribution to you, including the applicability and effect of all U.S. federal, state, local and foreign tax laws. IRS Form 8937 - New Notes IRS Form 8937 - Exchange Offers - 2020 IRS Form 8937 - Exchange Offers - 2021 IRS Form 8937 - Ocean Rig Acquisition IRS Form 8937 - Songa Compulsory Acquisition IRS Form 8937 - Songa Voluntary Acquisition IRS Form 8937 - 2016 Distributions IRS Form 8937 - 2016 Merger IRS Form 8937 - 2015 Distributions IRS Form 8937 - 2014 Distributions STATEMENTS Statement under 1.1273-2(f)(9) - New Notes BACK TO TOP Transocean ABOUT CONTACT ©2021 TRANSOCEAN LTD. LEGAL/PRIVACY NOTICE