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Marathon Oil Publishes 2011 Corporate Social Responsibility (CSR) Report

HOUSTONJuly 10, 2012 (GLOBE NEWSWIRE) -- Marathon Oil Corporation (NYSE: MRO) today announced it has published its "Living Our Values 2011 Corporate Social Responsibility (CSR) Report," which provides information on the Company's non-financial performance and its actions to promote sustainable social, environmental and economic benefits.

This is Marathon Oil's first report as an independent international energy company, following the successful 2011 spin-off of its refining, marketing and transportation business. The new report continues to track the Company's CSR progress across 16 goals in the areas of governance, society, environment and the workplace.

"While Marathon Oil continues to evolve and adapt to the ever-changing economic, geopolitical and competitive landscape, we maintain our focus on our long-standing commitment to Living Our Values - incorporating core principles related to health and safety, environmental stewardship, honesty and integrity, corporate citizenship and a high performance team culture into all aspects of our business," said Clarence P. Cazalot Jr., Marathon Oil's chairman, president and CEO.

The report contains a "2011 Performance Report Card" for the Company's CSR targets and provides examples of specific policies, programs and practices designed to achieve these goals. Marathon Oil's 2011 CSR milestones included exceeding its goals for reducing greenhouse gas emissions and improving energy efficiency. The Company also improved its safety performance in 2011 from the prior year.

Marathon Oil Corporation is an independent international energy company. Based in Houston, TexasMarathon Oil had net proved reserves at the end of 2011 of 1.8 billion barrels of oil equivalent in North AmericaEurope and Africa. The "Living Our Values 2011 Corporate Social Responsibility Report" and other information about Marathon Oil are available on the Company's website at

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

Source:  Marathon Oil Corporation


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