United States securities and exchange commission logo January 21, 2022 Kathryn Mikells Chief Financial Officer Exxon Mobil Corporation 5959 Las Colinas Boulevard Irving, Texas 75039-2298 Re: Exxon Mobil Corporation Form 10-K for the Fiscal Year Ended December 31, 2020 Filed February 24, 2021 File No. 001-02256 Dear Ms. Mikells: We have completed our review of your filing. We remind you that the company and its management are responsible for the accuracy and adequacy of their disclosures, notwithstanding any review, comments, action or absence of action by the staff. Sincerely, Division of Corporation Finance Office of Energy & Transportation