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Marathon Oil Announces Executive Change

Marathon Oil Announces Executive Change

HOUSTON, Dec. 10, 2012 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE:
MRO) announced today that David E. Roberts, Jr., executive vice president and
chief operating officer, has resigned in order to pursue other interests.
Roberts' resignation is effective Dec. 14, 2012.

Since joining Marathon in 2006, Roberts has been an important contributor to
the Company's upstream success.The Company's board of directors and
management team thank him for the contributions he has made to Marathon and
offer their best wishes to him in his future endeavors.


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