Rex Wayne Tillerson (born March 23, 1952) is an American businessman. He is the chairman and chief executive officer (CEO) of ExxonMobil.
Tillerson began his career as an engineer and holds a bachelor’s degree in civil engineering from the University of Texas at Austin. Tillerson joined Exxon in 1975, and by 1989 had become general manager of the Exxon USA central production division. In 1995 he became president of Exxon Yemen Inc. and Esso Exploration and Production Khorat Inc. In 2006, Tillerson was elected chairman and chief executive officer of Exxon, the world’s 6th largest company by revenue. Tillerson retired from Exxon effective December 31, 2016, and was succeeded by Darren Woods. He is a member of the National Academy of Engineering.