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Marathon Petroleum Corporation Announces Retirement of Executive Vice President Garry L. Peiffer

FINDLAY, Ohio, Nov. 15, 2013 - Garry L. Peiffer, executive vice president, Corporate Planning and Investor & Government Relations, Marathon Petroleum Corporation (MPC), has announced his intention to retire effective Jan. 1, 2014.

"Throughout the past 39 years, Garry has made significant contributions to the success of the company," said Gary R. Heminger, MPC`s president and CEO. "His leadership was instrumental as we charted the course for a joint venture between Marathon and Ashland in 1998, and then again when MPC was launched in 2011. His knowledge of the business has provided a depth of insight and counsel that cannot be matched. Garry has held numerous leadership positions and has been a true ambassador for MPC, representing the company well with our numerous stakeholders, including investors, industry analysts and elected officials."

Heminger added, "I am appreciative of Garry`s many years of service and commitment to the company. I wish him and his family well in the coming years."

Mr. Peiffer began his career with Marathon Oil Company in 1974. During his career, he held a variety of management positions with increasing responsibilities. These responsibilities included supervisor of employee savings and retirement plans, controller of Speedway Petroleum Corporation and numerous other marketing and logistics positions. In 1987, Mr. Peiffer was appointed to the president`s Commission on Executive Exchange serving for a year in the Pentagon as special assistant to the assistant secretary of defense for production and logistics. In 1988, he returned to Marathon Oil and was named vice president of Finance and Administration for Emro Marketing Company. He served as assistant controller, Refining, Marketing and Transportation beginning in 1992. Mr. Peiffer was named senior vice president of Finance and Commercial Services for Marathon Ashland Petroleum LLC in 1998. He was named to his current position in July 2011. In 2012, he also became president of MPLX GP LLC and serves on its board of directors.

Mr. Peiffer is a member of the Blanchard Valley Health System board of trustees; the Blanchard Valley Port Authority board; the Fifth Third Bank (Northwestern Ohio) board of directors; and the Findlay-Hancock County Community Foundation board of trustees.

Mr. Peiffer graduated from Bowling Green State University with a bachelor`s degree in accounting.

About Marathon Petroleum Corporation

MPC is the nation`s fourth-largest refiner, with a crude oil refining capacity of approximately 1.7 million barrels per calendar day in its seven-refinery system. Marathon brand gasoline is sold through approximately 5,100 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 1,470 convenience stores in nine states. MPC also owns, leases or has ownership interests in approximately 8,300 miles of pipeline. Through subsidiaries, MPC owns the general partner of MPLX LP, a midstream master limited partnership. 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.

Investor Relations Contacts:                                    Media Contact:
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Beth Hunter (419) 421-2559
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MPC Announces Retirement of Garry L. Peiffer

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Source: Marathon Petroleum Corporation via Thomson Reuters ONE