FINDLAY, Ohio, April 17, 2012 - Marathon Petroleum Corporation (NYSE: MPC) announced today that it will host a conference call on Tuesday, May 1, at 10 a.m. EDT to provide an update on company operations and to discuss 2012 first-quarter financial results, which will be released earlier that day.

MPC participants will be Gary Heminger, president and chief executive officer; Garry Peiffer, executive vice president of Corporate Planning and Investor & Government Relations; Don Templin, senior vice president and chief financial officer; and C. Michael Palmer, senior vice president of Supply, Distribution and Planning. The call will be hosted by Pam Beall, vice president of Investor Relations and Government & Public Affairs.

Interested parties may listen to the conference call on MPC's website at http://www.marathonpetroleum.com:
http://www.marathonpetroleum.com/ by clicking on the "2012 First-Quarter Financial Results" link. Replays of the conference call will be available on the company's website through Tuesday, May 15. Financial information, including the earnings release and other investor-related material, also will be available online.

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About Marathon Petroleum Corporation

MPC is the nation's fifth-largest refiner with a crude capacity of approximately 1.2 million barrels per calendar day in its six-refinery system. Marathon brand gasoline is sold through more than 5,000 independently owned retail outlets across 18 states. In addition, Speedway LLC, an MPC subsidiary, owns and operates the nation's fourth-largest convenience store chain, with approximately 1,370 convenience stores in seven states. MPC also owns, leases or has ownership interests in approximately 8,300 miles of pipeline. MPC's fully integrated system provides operational flexibility to move crude oil, feedstocks and petroleum-related products efficiently through the company's distribution network in the Midwest, Southeast and Gulf Coast regions. For additional information about the company, please visit our website at http://www.marathonpetroleum.com:
http://www.marathonpetroleum.com/.

Investor Relations Contacts:
Pamela Beall (419) 429-5640
Beth Hunter (419) 421-2559

Media Contacts:
Angelia Graves (419) 421-2703
Jamal Kheiry (419) 421-3312


MPC Announces 2012 1Q Earnings Call:
http://hugin.info/147922/R/1603342/506845.pdf


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Source: Marathon Petroleum Company via Thomson Reuters ONE
HUG#1603342