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These shares were sold in multiple transactions at prices ranging from $50.455 to $50.505, 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 range set forth in footnote (1) to this Form 4."}],"balance_after":46570,"source":{"system":"sec-edgar","filing":"0001209191-17-013946","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1510295/000120919117013946/doc4.xml","form_type":"4"}},{"id":4427772,"issuer":{"id":2903,"kind":"organization","name":"Marathon Petroleum Corp"},"owners":[{"id":150993,"kind":"person","name":"Swearingen John S","position":1,"cik":"0001635437","reported_name":"Swearingen John S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Trans. & Logistics"}}],"security":"Common Stock","published_at":"2017-02-23T22:41:52.000Z","date":"2017-02-21","kind":"exercise","acquired":true,"shares":17136,"price":25.875,"value":443394.0,"ownership":{"direct":true},"balance_after":63706,"source":{"system":"sec-edgar","filing":"0001209191-17-013946","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1510295/000120919117013946/doc4.xml","form_type":"4"}},{"id":4467898,"issuer":{"id":3003,"kind":"organization","name":"MPLX LP"},"owners":[{"id":150993,"kind":"person","name":"Swearingen John S","position":1,"cik":"0001635437","reported_name":"Swearingen John S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"VP, Crude Oil & Ref Prod Pipe"}}],"security":"Common Units (Limited Partner Interests)","published_at":"2017-02-03T16:33:29.000Z","date":"2017-02-01","kind":"grant","acquired":true,"shares":60,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":7743,"source":{"system":"sec-edgar","filing":"0001209191-17-007432","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1552000/000120919117007432/doc4.xml","form_type":"4"}},{"id":4468773,"issuer":{"id":2903,"kind":"organization","name":"Marathon Petroleum Corp"},"owners":[{"id":150993,"kind":"person","name":"Swearingen John S","position":1,"cik":"0001635437","reported_name":"Swearingen John S","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Sr. VP, Trans. & Logistics"}}],"security":"Common Stock","published_at":"2017-02-03T14:34:48.000Z","date":"2017-02-01","kind":"grant","acquired":true,"shares":827,"price":0,"value":0.0,"ownership":{"direct":true},"balance_after":46570,"source":{"system":"sec-edgar","filing":"0001209191-17-007388","document":"doc4.xml","document_sequence":1,"table":"nonDerivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1510295/000120919117007388/doc4.xml","form_type":"4"}}]}