Koraleski succeeds the late Jim Young, who served as Union Pacific chairman from January 2007 until his death in February 2014. Since joining the railroad in 1972, Koraleski has served in a number of senior leadership roles, including controller of Union Pacific, executive vice president of marketing and sales and executive vice president of finance and information technology. He was named president and chief executive officer in March 2012 and was elected to the board of directors in July 2012.
Dillon is the chairman of The Kroger Co., based in Cincinnati, Ohio. Kroger employs 375,000 associates who serve customers in more than 3,700 supermarkets, convenience and jewelry stores in 34 states and the District of Columbia. Kroger also operates 38 U.S. food processing plants. Dillon is a member of the board of directors of DirecTV and also serves on the board of trustees for the University of Cincinnati Foundation, the board of trustees for the Urban League of Greater Cincinnati, the board of trustees for the University of Kansas Endowment and the board of directors for Catalyst.
"Dave understands rail operations from a customer point of view," said Koraleski. "Having led a large retail business, Dave brings a unique perspective and strong knowledge of complex logistics operations to Union Pacific."