Marathon Oil Corp. elects president and CEO

Clarence P. Cazalot Jr, chairman, president and CEO of Marathon Oil Corp. (NYSE: MRO) has elected to retire on Dec. 31, 2013.

Offshore staff

HOUSTON – Clarence P. Cazalot Jr, chairman, president and CEO of Marathon Oil Corp. (NYSE: MRO) has elected to retire on Dec. 31, 2013, after almost 14 years leading the company and 41 years in the oil and gas industry. Cazalot will continue as executive chairman through Dec. 31, 2013.

The Marathon Oil board of directors has elected Lee M. Tillman to the board of directors and to succeed Cazalot as president and CEO effective Aug. 1, 2013.

Most recently, Tillman served as vice president of engineering for ExxonMobil Development Co. He holds a Bachelor of Science degree in chemical engineering with honors from Texas A&M University and a Ph.D. in chemical engineering from Auburn University.

The board intends to nominate Dennis H. Reilley, currently Marathon Oil lead director, as non-executive chairman upon Cazalot’s retirement.

6/13/2013

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