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Roger R. Hemminghaus, retired Chairman and CEO of Ultramar Diamond Shamrock Corp., a petroleum refining and marketing company in San Antonio. Mr. Hemminghaus served on the board of directors of NCE from 1997 until 2000 and on the board of directors of Southwestern Public Service Company from 1994 until 1997. He serves on the board of directors of CTS Corporation and Tandy Brands Accessories Corp. Mr. Hemminghaus is former Chairman of the Federal Reserve Bank of Dallas; he serves on the National Executive Council of the Boy Scouts of America, as Vice Chairman of the Development Board of the University of Texas at San Antonio, regent of Texas Lutheran University, and director and former chairman of the Southwest Research Institute. Mr. Hemminghaus earned a B.S. degree in chemical engineering from Auburn University and has done graduate work in business and nuclear engineering.
Director since 2000 | 