Standard & Poor's Announces Change to U.S. Index

NEW YORK, Nov. 21 /PRNewswire/ -- Transocean Inc. (new) (NYSE:RIG) will replace Transocean Inc. (old) (NYSE:RIG) in the S&P 500 after the close of trading on Monday, November 26. Transocean is acquiring GlobalSantaFe Corp. (NYSE:GSF) in a transaction that involves the shares of both companies being converted into a new class of stock.

Standard & Poor's will monitor this transaction, and post any relevant updates on its website: www.standardandpoors.com.

Transocean provides offshore contract drilling services for oil and gas wells. Headquartered in Houston, TX, the company will be added to the S&P 500 GICS (Global Industry Classification Standard) Oil & Gas Drilling Sub-Industry index.

    Following is a summary of the change:


                      S&P 500 INDEX - November 26, 2007

             COMPANY           GICS ECONOMIC SECTOR      GICS SUB-INDUSTRY
    ADDED    Transocean (new)         Energy             Oil & Gas Drilling
    DELETED  Transocean (old)         Energy             Oil & Gas Drilling


Additions to and deletions from an S&P equity index do not in any way reflect an opinion on the investment merits of the companies concerned.

About Standard & Poor's

Standard & Poor's, a division of The McGraw-Hill Companies (NYSE:MHP), is the world's foremost provider of financial market intelligence, including independent credit ratings, indices, risk evaluation, investment research and data. With approximately 8,500 employees, including wholly owned affiliates, located in 21 countries, Standard & Poor's is an essential part of the world's financial infrastructure and has played a leading role for more than 140 years in providing investors with the independent benchmarks they need to feel more confident about their investment and financial decisions. For more information, visit http://www.standardandpoors.com.

About The McGraw-Hill Companies:

Founded in 1888, The McGraw-Hill Companies (NYSE:MHP) is a leading global information services provider meeting worldwide needs in the financial services, education and business information markets through leading brands such as Standard & Poor's, McGraw-Hill Education, BusinessWeek and J.D. Power and Associates. The Corporation has more than 280 offices in 40 countries. Sales in 2006 were $6.3 billion. Additional information is available at http://www.mcgraw-hill.com.

Source: Standard & Poor's

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