Doyle L. Arnold joined Group 1 as an independent director in February 2015. Previously, he served as Vice Chairman and Chief Financial Officer of Zions Bancorporation. Mr. Arnold was formerly Group Executive Vice President for Corporate Strategy and Development at Bank of America Corporation in San Francisco. He has served in a variety of executive management positions at BankAmerica, and prior to that at Wells Fargo & Company. Mr. Arnold also served as Senior Deputy Comptroller of the Currency and Executive Assistant to the Deputy Secretary of the Treasury during the Reagan administration. He has served as Chief Financial and Administrative Officer of Bankserv, Inc., a leading electronic payments company. Mr. Arnold is a graduate of Rice University, and has an M.B.A. from Stanford University.