Rex W. Tillerson an American national born in 1952 is the CEO of Exxon Mobil Corporation. The company tops the Fortune 500 list with a revenue of 452926 million USD. He is a Bachelor in Civil Engineering from the University of Texas. He is the CEO since 2006. He joined the company in 1975 as a Production Engineer before becoming the President in 2004 and becoming the CEO in 2006. His reputation as a solid hands on guy has made his growth easier and his knowledge of the field is impeccable.