Transocean's Latest Fleet Update Summary

Transocean Ltd. has issued a monthly Fleet Update Summary which includes new contracts, significant changes to existing contracts, and changes in estimated planned out-of-service time of 15 or more days since May 15, 2014.

• The high-specification jackup, GSF Magellan, is held for sale.
• Estimated 2014 planned out-of-service time decreased by a net five days; estimated 2015 planned out-of-service time increased by a net 29 days.

About Transocean
Transocean is a leading international provider of offshore contract drilling services for oil and gas wells. The company specializes in technically demanding sectors of the global offshore drilling business with a particular focus on deepwater and harsh environment drilling services, and believes that it operates one of the most versatile offshore drilling fleets in the world.

Transocean owns or has partial ownership interests in, and operates a fleet of, 77 mobile offshore drilling units consisting of 46 high-specification floaters (ultra-deepwater, deepwater and harsh-environment drilling rigs), 21 midwater floaters and 10 high-specification jackups. In addition, the company has nine ultra-deepwater drillships and five high-specification jackups under construction.

For more information about Transocean: www.deepwater.com.