UPDATE 2-Marathon Oil taps Exxon Mobil executive as next CEO

Thu Jun 13, 2013 11:50am EDT

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June 13 (Reuters) - Marathon Oil Corp has tapped an Exxon Mobil Corp executive to become its next CEO when Clarence Cazalot retires at the end of the year.

Lee Tillman, Exxon Mobil's vice president of engineering, will take the top post at the energy exploration company in January 2014, Marathon Oil said on Thursday.

Tillman's experience in some of the world's most complex energy fields, including Norway, Scotland and Indonesia, will help Marathon Oil as it works to expand its operations in Canada's oil sands, America's shale fields, and in Iraq and Angola.

Tillman, 51, has worked at Exxon Mobil since 1989 after earning a Ph.D. at Auburn University. A chemical engineer by training, he is a car enthusiast and once said in an interview that as a child, he dreamed of racing Formula 1 cars.

Tillman will join Marathon Oil on Aug. 1 as president and Cazalot, 62, will stay on as executive chairman through the end of the year.

It was not immediately clear if Tillman will remain at Exxon Mobil through August. Exxon Mobil declined to comment.

Dennis Reilley, Marathon Oil's current lead director, will be nominated to become non-executive chairman once Cazalot retires, the company said.

In 2011, Houston-based Marathon Oil spun off its refining unit into Marathon Petroleum.

Shares of Marathon Oil rose 1.5 percent to $33.90 in morning trading.

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