Marathon Petroleum Corp — Director's Dealing 2015

May 6, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Marathon Petroleum Corp (MPC)
CIK: 0001510295
Period of Report: 2015-05-04

Reporting Person: Shaffner George P. (Sr. VP, HES&S (See Remarks))

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-05-04	Common Stock	M	3490	$25.74	Acquired	17772.2601	Direct
2015-05-04	Common Stock	M	17297	$25.74	Acquired	35069.2601	Direct
2015-05-04	Common Stock	M	5426	$51.75	Acquired	40495.2601	Direct
2015-05-04	Common Stock	S	3490	$101.45	Disposed	37005.2601	Direct
2015-05-04	Common Stock	S	17297	$101.43	Disposed	19708.2601	Direct
2015-05-04	Common Stock	S	5426	$101.50	Disposed	14282.2601	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-05-04	Stock Option (right to buy)	$51.75	M	5426	Disposed	2017-05-30	Common Stock (5426)	Direct
2015-05-04	Stock Option (right to buy)	$25.74	M	3490	Disposed	2020-05-26	Common Stock (3490)	Direct
2015-05-04	Stock Option (right to buy)	$25.74	M	17297	Disposed	2020-05-26	Common Stock (17297)	Direct

Footnotes

F1: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.40 to $101.57, inclusive. The reporting person undertakes to provide to Marathon Petroleum Corporation, any security holder of Marathon Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) (2) and (3) to this Form 4.

F2: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.15 to $101.74, inclusive. The reporting person undertakes to provide to Marathon Petroleum Corporation, any security holder of Marathon Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) (2) and (3) to this Form 4.

F3: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $101.50 to $101.53, inclusive. The reporting person undertakes to provide to Marathon Petroleum Corporation, any security holder of Marathon Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnotes (1) (2) and (3) to this Form 4.

F4: Includes .068213 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.

F5: This option, originally in the amount of 20,787, is exercisable as follows: 3,490 shares on June 30,2011, 8,648 shares on May 26, 2012 and 8,649 shares on May 26, 2013.