Marathon Oil Publishes 2013 Corporate Social Responsibility (CSR) Report

Marathon Oil Publishes 2013 Corporate Social Responsibility (CSR) Report

HOUSTON, June 17, 2014 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE:
MRO) today announced it has published its "2013 Living Our Values Corporate
Social Responsibility (CSR) Report," an annual report that provides
information on the Company's non-financial performance and its efforts to
promote greater economic, social and environmental sustainability.

The new report highlights the Company's unwavering commitment to living its
long-standing core values of health and safety, environmental stewardship,
openness and honesty, strong community partnerships and an engaged,
solution-driven workforce.

"To support our business activities and put our values into action, Marathon
Oil sets corporate-level CSR commitments that our local asset teams are
responsible for achieving," said Lee M. Tillman, Marathon Oil's president and
CEO. "Local operations work with key stakeholders to identify specific impacts
and issues and then implement CSR programs to address them. This integrated,
solution-driven approach ensures that CSR programs help us build
relationships, meet the most critical needs and deliver real benefits
locally."

Marathon Oil has adopted eight corporate-level commitments covering
governance, society, environment and the workplace. For each commitment, the
report outlines progress made in 2013 and primary activities planned for 2014.
Responding to stakeholder feedback, this year's report includes enhanced
transparency and reporting for environmental performance.

Again this year, the report is available in a digital-only format at
http://www.marathonoil.com/lov2013/.

Marathon Oil Corporation is a global exploration and production company. Based
in Houston, Texas, the Company had net proved reserves at the end of 2013 of
approximately 2.2 billion barrels of oil equivalent in North America, Europe
and Africa. The"2013 Living Our Values Corporate Social Responsibility
Report"athttp://www.marathonoil.com/Social_Responsibility/Reportingand
other information about Marathon Oil are available on the Company's website
athttp://www.marathonoil.com.

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