Marathon Petroleum Corp — Director's Dealing 2011

Dec 21, 2011

SEC Form 4/A — Form 4/A

Issuer: Marathon Petroleum Corp (MPC)
CIK: 0001510295
Period of Report: 2011-06-30

Reporting Person: Peiffer Garry L. (Executive VP (See Remarks))

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-06-30	Common Stock	A	18356	—	Acquired	18356	Direct

Footnotes

F1: Adjusted distribution resulting from the spin-off of Issuer from Marathon Oil Corporation on June 30, 2011 ("the "Spin-Off").

F2: The amount previously reported in this row was estimated as of July 5, 2011 based on preliminary information regarding the Spin-Off. That previous report included a footnote indicating that in the event final amounts differed from those estimated as of July 5, a subsequent filing would provide any corrections necessary. The amount reflected in this row represents such a correction.

F3: This amended Form 4 is being filed to include 3,373 shares acquired in a pro-rata distribution of Issuer shares from Marathon Oil Corporation in connection with the Spin-Off and were omitted from the Reporting Person's Form 4, which was filed on July 5, 2011. Such shares were also omitted from the Reporting Person's subsequent Form 4, which was filed on December 7, 2011.