Marathon Petroleum Company

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FINDLAY, Ohio, July 27, 2011 - Marathon Petroleum Corporation (NYSE: MPC), the
nation's fifth largest refiner, today announced the appointment of Timothy T.
Griffith to the position of vice president of finance and treasurer, effective
Aug. 1.

"We are delighted to welcome Tim to Marathon Petroleum," said Don Templin,
senior vice president and chief financial officer. "His extensive capital
markets, risk management, cash management and investment experience across a
wide variety of industries makes him a perfect fit for our leadership team."

Templin said that Griffith will play a crucial role at Marathon Petroleum: "As a
well established company that is newly-listed on the NYSE, maintaining our
investment grade profile and capital efficiency are among our primary strategic
objectives. Tim will be an instrumental part of that ongoing focus."

Griffith served as the capital planning officer at Comerica Incorporated and
held positions as a derivatives specialist at Citicorp Securities in New York
and Chicago before securing a position as assistant treasurer at Lear
Corporation, where he was responsible for risk management, capital markets, and
international finance.

Subsequent to his position with Lear, Griffith was appointed vice president &
treasurer of Cooper-Standard Automotive, a tier one supplier to the global
automotive industry headquartered in Novi, Michigan. At Cooper-Standard,
Griffith had executive responsibility for the company's global treasury
operations and investor relations activities.

Griffith comes to MPC from Smurfit-Stone Container Corporation, a $6.5 billion
publicly traded paper-based packaging company in St. Louis, Missouri, where he
had executive responsibility for the company's investor interface and treasury
operations, including capital structure, cash management, insurance, and
investment oversight.

Griffith earned a Bachelor of Arts in economics from Michigan State University
in 1991 and a Master of Business Administration from the University of Michigan
in 1997.  Griffith is also a chartered financial analyst, a designation he has
held since 1995.

                                     # # #

About Marathon Petroleum Corporation

Marathon Petroleum Corporation (MPC) is the nation's fifth largest refiner with
a crude capacity in excess of 1.1 million barrels per day in its six-refinery
system. Marathon brand gasoline is sold through 5,100 independently owned
locations across 18 states. In addition, Speedway LLC, an MPC subsidiary, owns
and operates the nation's fourth largest convenience store chain with
approximately 1,350 locations in seven states. MPC also owns, operates, leases
or has ownership interest in approximately 9,600 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.

Media Contacts:
Angelia Graves (419) 421-2703
Robert Calmus (419) 421-3127

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





MPC press release - Timothy Griffith appointment: 
http://hugin.info/147922/R/1534096/467489.pdf




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Source: Marathon Petroleum Company via Thomson Reuters ONE

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