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Marathon Petroleum market cap MPC

Share price times shares outstanding: what the whole company sells for, since 2011.

Today, Oct 23, 2026
$128.4B
Highest close in our data
$134.3B
Oct 2026

Marathon Petroleum is worth $128.4B at the close on Oct 23, 2026, at $457.22 a share.

That is up 115% over the last year and up 205% over five years.

Its highest close in our data was $134.3B in Oct 2026.

Market cap over time

Open the interactive chart, with overlays and comparisons

Year by year

YearEnd of yearLowHighChange
2026 so far$128.4B$49.6B$134.3B+161%
2025$49.2B$37.8B$60.4B+13%
2024$43.6B$42.9B$79.2B−23%
2023$56.3B$45.4B$62.3B+3%
2022$54.5B$43.3B$58.7B+38%
2021$39.4B$28.1B$43.1B+46%
2020$26.9B$12.3B$39.1B−31%
2019$39.2B$30.1B$45.7B−3%
2018$40.2B$31B$46.4B+25%
2017$32.2B$25.4B$32.4B+21%
2016$26.6B$16.8B$26.8B−4%
2015$27.6B$21.7B$31.8B+10%
2014$25.1B$22.2B$28.2B−6%
2013$26.8B$20.2B$30.1B+29%
2012$20.7B$11.3B$21.3B+75%
2011$11.9B$9.6B$13.8Bn/a

Against its peers

Companies in Oil & Gas Refining & Marketing nearest Marathon Petroleum's size, closest first, today.

CompanyMarket cap
MPCMarathon Petroleum$128.4B
VLOValero Energy$120.7B
PSXPhillips 66$113B
DINOHF Sinclair$21.6B
Peer median$113B

What the market cap tells you

Share price times shares outstanding: what the whole company sells for today.

Size, not quality. Large caps move slower and are covered more. That is all it tells you.

More on Marathon Petroleum

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.