Marathon Oil (MRO)

Statement Regarding the Delivery of a Single Set of Proxy Materials to Households With Multiple Marathon Stockholders

If you have consented to the delivery of only one set of proxy materials to multiple Marathon stockholders who share your address, then only one proxy statement is being delivered to your household unless we have received contrary instructions from one or more of the stockholders sharing your address. We will deliver promptly upon oral or written request a separate copy of the proxy statement to any stockholder at your address. If you wish to receive a separate copy of the proxy statement, you may call us at (713) 629-6600 (please ask for Investor Relations) or write to us at Marathon Oil Corporation, Investor Relations Office, P.O. Box 3128, Houston, Texas, 77210-3128. Stockholders sharing an address who now receive multiple copies of the proxy statement may request delivery of a single copy by calling us at the above number or writing to us at the above address.

Statement Regarding the Delivery of a Single Set of Proxy Materials to Households With Multiple Marathon Stockholders

If you have consented to the delivery of only one set of proxy materials to multiple Marathon stockholders who share your address, then only one proxy statement is being delivered to your household unless we have received contrary instructions from one or more of the stockholders sharing your address. We will deliver promptly upon oral or written request a separate copy of the proxy statement to any stockholder at your address. If you wish to receive a separate copy of the proxy statement, you may call us at (713) 629-6600 (please ask for Investor Relations) or write to us at Marathon Oil Corporation, Investor Relations Office, P.O. Box 3128, Houston, Texas, 77210-3128. Stockholders sharing an address who now receive multiple copies of the proxy statement may request delivery of a single copy by calling us at the above number or writing to us at the above address.