Marathon Oil Schedules First Quarter 2013 Financial Results Conference Call and Webcast

Marathon Oil Schedules First Quarter 2013 Financial Results Conference Call
and Webcast

HOUSTON, April 10, 2013 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE:
MRO) announced today that the Company's first quarter 2013 financial results
conference call will be webcast live on the Marathon Oil website on Wednesday,
May 8, at 9 a.m. EDT. The Company plans to issue its first quarter earnings
news release the previous afternoon, Tuesday, May 7, after the close of U.S.
financial markets. The timing of Marathon Oil's first quarter 2013 earnings
news release and conference call is a change from the Company's previous
quarterly schedule.

Howard J. Thill, vice president, Investor Relations and Public Affairs, will
host the call. Also participating from Marathon Oil will be Clarence P.
Cazalot, Jr., chairman, president and CEO, and Janet F. Clark, executive vice
president and chief financial officer. The call will include forward-looking
information.

Interested parties can listen to the conference call by visiting Marathon
Oil's website at http://www.MarathonOil.com and clicking on the 2013 First
Quarter Financial Results link. Replays of the conference call will be
available on the website through June 8, 2013. Financial information,
including earnings releases and other investor-related material, also is
available online and on Marathon Oil's app for mobile devices.

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CONTACT: Media Relations Contacts
         Lee Warren: 713-296-4103
         John Porretto: 713-296-4102
        
         Investor Relations Contacts
         Howard Thill: 713-296-4140
         Chris Phillips: 713-296-3213
 
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