On February 21, 2023, J. Kent Wells notified Marathon Oil Corporation (the Company) that he would not stand for re-election as a director of the Company at the 2023 Annual Meeting of Stockholders. Mr. Wells has served on the Board since 2019 and will continue to serve on the Board through the end of his term on May 24, 2023. Mr. Wells' decision not to stand for re-election was not the result of any disagreement relating to the Company's operations, policies or practices.

Following the end of his term, the size of the Board will be set at eight.