National Oilwell Appoints David Harrison to Board

National-Oilwell, Inc. announced that David D. Harrison, Executive Vice President and Chief Financial Officer of Pentair, Inc., has been appointed to National Oilwell's board of directors. Mr. Harrison fills a vacancy on the board, and his term will expire at the 2006 annual meeting of stockholders.

Harrison, 56, has served as Executive Vice President and CFO of Pentair since February 2000. He also served as Executive Vice President and CFO of Pentair from 1994 to 1996. Pentair is a diversified manufacturer serving customers worldwide in its core businesses: tools, water technologies, and enclosures, with approximately 12,000 employees and 2002 sales of $2.6 billion. He was Executive Vice President and CFO and a director of Coltec Industries from 1996 to 1999. From 1972 through 1994, Mr. Harrison held various international and domestic positions with a combination of General Electric and Borg-Warner Chemicals.

Harrison, a Certified Management Accountant, holds a Master's Degree in Financial Management from Ohio University and a Bachelor's Degree from Marietta College. He serves on the Ohio University MBA Advisory Board and the Twin Cities Salvation Army Advisory Board.

Pete Miller, National Oilwell's Chairman, President and Chief Executive Officer, said "David Harrison brings significant experience in international and manufacturing arenas as well as in finance and accounting to the board and the Company. His appointment is in keeping with our commitment to increase the independence of National Oilwell's board of directors and brings the composition of the board to a majority of independent directors. David will be a valuable addition to the National Oilwell board and I am delighted to welcome him."