Exhibit 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in Registration Statement No. 333-175245 of Marathon Petroleum Corporation on Form S-8 of our report related to the financial statements and supplemental schedule of the Marathon Petroleum Thrift Plan dated June 24, 2013, appearing in this Annual Report on Form 11-K for the year ended December 31, 2012.
/s/ McConnell & Jones LLP
Houston, Texas
June 24, 2013
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