Marathon Petroleum Corp. to Report Third-Quarter Financial Results on November 3, 2026

Marathon Petroleum Corp. (NYSE: MPC ) will host a conference call on Tuesday, November 3, 2026, at 11 a.m. EST to discuss 2026 third-quarter financial results. Interested parties may listen to the conference call by visiting MPC's website at www.marathonpetroleum.com . A replay of the webcast will be available on MPC's website for one month. Financial information, including the earnings release and other investor-related material, will also be available online prior to the conference call and webcast at www.marathonpetroleum.com .

About Marathon Petroleum Corporation MPC is a leading, integrated, downstream and midstream energy company headquartered in Findlay, Ohio. The company operates the nation's largest refining system. MPC's marketing system includes branded locations across the United States, including Marathon brand retail outlets. MPC also owns the general partner and majority limited partner interest in MPLX LP, a midstream company that owns and operates gathering, processing, and fractionation assets, as well as crude oil and light product transportation and logistics infrastructure. More information is available at www.marathonpetroleum.com .

Investor Relations Contacts: (419) 421-2071 Brian Worthington, Vice President, Investor Relations Alyx Teschel, Director, Investor Relations Media Contact: (419) 421-3577 Jamal Kheiry, Communications Manager