Superworth

Phillips 66 market cap PSX

Share price times shares outstanding: what the whole company sells for, since 2012.

Today, Oct 23, 2026
$113B
Highest close in our data
$117B
Oct 2026

Phillips 66 is worth $113B at the close on Oct 23, 2026, at $283.18 a share.

That is up 107% over the last year and up 245% over five years.

Its highest close in our data was $117B in Oct 2026.

Market cap over time

Open the interactive chart, with overlays and comparisons

Year by year

YearEnd of yearLowHighChange
2026 so far$113B$52.6B$117B+120%
2025$51.5B$39.7B$57.3B+11%
2024$46.5B$45.6B$73.1B−21%
2023$58.6B$41.7B$59B+19%
2022$49.2B$34.5B$52.6B+55%
2021$31.7B$28.9B$40.1B+4%
2020$30.5B$20.4B$48.2B−38%
2019$49.1B$36.6B$53.2B+25%
2018$39.2B$38B$56.9B−24%
2017$51.3B$39.4B$51.3B+14%
2016$45B$39.3B$47.2B+3%
2015$43.6B$33.7B$49.5B+9%
2014$40.2B$36.4B$48.9B−10%
2013$44.8B$31.7B$44.8B+42%
2012$31.6B$18.7B$33.5Bn/a

Against its peers

Companies in Oil & Gas Refining & Marketing nearest Phillips 66's size, closest first, today.

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

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 Phillips 66

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