Roger W. Wallace
Roger Windham Wallace is "vice president for government affairs at Pioneer Natural Resources Company, an independent oil and gas company based in Irving, Texas. Formerly he served as president and CEO of Investamex, an investment and consulting firm he co-founded in 1993 focusing on business opportunities in Mexico and Latin America." 
"From August of 1991 until the summer of 1993, Roger Wallace was the Minister Counselor for Commercial Affairs at the United States Embassy in Mexico City. He also was Co-Chair of the U.S.-Mexico Environmental Business Committee. From 1989 to August 1991, he served as the Deputy Under Secretary for International Trade at the U.S. Department of Commerce. As Deputy Under Secretary, he was responsible for coordinating the Commerce Department's role during the preparatory phases of the North American Free Trade Agreement negotiations, for which he received the Department’s highest award. Prior to going to Washington, Mr. Wallace organized the activities of the newly created Texas Department of Commerce and served as Deputy Director.
"Mr. Wallace currently serves as Co-Chair of the Woodrow Wilson Center’s Mexico Institute Advisory Board. He is also a member of the Council of Foreign Relations and the Board of the Atlantic Council. He has served as Chairman of the Asia Society of Texas, Vice Chairman of the American Center for International Leadership, President of the Amundsen Institute of U.S.-Mexico Studies, Trustee of the Salzburg Seminar in American Studies and Chairman of the Executive Council of the Mexican Center at the University of Texas." 
"He has a B.A. from Washington and Lee University and an M.A. from the Fletcher School of Law and Diplomacy." 
Texans for Public Justice report, via WhiteHouseforSale, that Wallace, a "former senior vice president of Public Strategies who then became a self-employed consultant", "headed the International Trade Administration as a deputy undersecretary" under President George H.W. Bush's Commerce Secretary Robert Mosbacher, "serving as a top proponent of the North American Free Trade Agreement. After Mosbacher canceled an appearance before the National Council of La Raza’s 1991 annual convention at the last minute, he left Wallace to take the bullet. La Raza members were angry with Mosbacher for refusing to adjust the 1990 census, which failed to count millions of minorities. Some members booed Wallace and others walked out on his address. Wallace is a long-time GOP fundraiser, who headed the first President Bush’s Houston-area presidential campaign in 1980. When Reagan won the GOP nomination that year, Wallace joined his national campaign. In the private sector he was an assistant to oil tycoon Roy M. Huffington and headed Mosbacher’s venture capital firm, Mosbacher de Mexico. He also started his own oil investment firm, Tobin-Windham Interests. George W. Bush appointed Wallace to the Inter-American Foundation."