Marathon Oil Corporation announced on July 31, 2008, that it was evaluating the potential separation of its businesses into two independent publicly traded companies. It is still anticipated that the results of this effort will be reviewed by the Board of Directors and that a decision will be made during the fourth quarter 2008, with the separation likely to occur during the first quarter 2009 should the decision be made to separate. In the interim, Marathon will continue to issue commercial paper in the normal course of business with all issued paper maturing and settling prior to any potential separation date.