Carbon Disclosure Project 2009 Global 500 Report

BRAZIL OPERATIONS
GALLERY: Transocean Driller in the shipyard

RESPONSIBILITY
GALLERY: 2009 Beach Cleanup in Galveston

AROUND RIG
GALLERY: Celebrating a Year of “Making a Difference”

Transocean Ranked Among World’s Top 50 Companies in Latest Carbon Disclosure Project 2009 Global 500 Report

Transocean this fall was ranked among the world’s top 50 companies in the Carbon Disclosure Project (CDP) 2009 Global 500 Report.

For the second consecutive year, Transocean was featured in CDP’s “Carbon Disclosure Leadership Index.” This prestigious index, a key component of CDP’s annual Global 500 Report, which represents 475 institutional investors with $55 trillion in assets under management, highlights the constituent companies within the FTSE Global 500 Index which have displayed the most professional approach to corporate governance in respect of climate change disclosure practices.

Companies are scored on their climate change disclosure and high scores indicate good internal data management and understanding of climate-change related issues affecting the company.

In addition to this listing, Transocean also ranked as one of the top three companies in the new CDP Performance Scoring Initiative for the energy sector along with Royal Dutch Shell and Total. Transocean was also recognized as the top-performing energy sector company in the CDP’s S&P 500 Performance Scoring Initiative.

“I am delighted to see Transocean listed in the leadership index, which demonstrates that our overall environmental-improvement efforts, in particular, emissions management, are being recognized,” said Adrian Rose, Vice President, Quality, Health, Safety and Environment.

The index, compiled by PricewaterhouseCoopers (PwC) on behalf of CDP provides an evaluation tool for institutional investors. It comprises 50 constituents of the Global 500 Index based on analysis of the responses to CDP’s 2009 Questionnaire which focused on greenhouse gas emissions, emissions reduction targets and risks and opportunities associated with climate change.

The Global 500 Report, including names of companies featured in the Carbon Disclosure Leadership Index, can be found at www.cdproject.net.