Marathon Oil Schedules Second Quarter 2013 Financial Results Release and Conference Call

Marathon Oil Schedules Second Quarter 2013 Financial Results Release and
Conference Call

HOUSTON, July 10, 2013 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE:
MRO) announced today it plans to issue its second quarter 2013 earnings news
release on Tuesday, Aug. 6, after the close of U.S. financial markets.
Prepared remarks about the quarter along with accompanying slides will be
available on the Company's website approximately one hour after the issuance
of the earnings news release. The Company will conduct a question-and-answer
conference call, which will be webcast live, on Wednesday, Aug. 7, at 9 a.m.
EDT.

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., executive chairman, Lee M. Tillman, president and CEO, and Janet
F. Clark, executive vice president and chief financial officer. The call will
include forward-looking information.

All of the above information can be accessed by visiting Marathon Oil's
website at http://www.MarathonOil.com. The prepared comments, slide
presentation and replay of the question-and-answer session will be available
on the website through Sept. 7, 2013. Additional financial information,
including earnings releases and other investor-related material, is available
online and on Marathon Oil's app for mobile devices.

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