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Below is a table of the Phillips 66 shares outstanding history going back to 4/30/2012:
Also see: PSX Market Cap History PSX YTD Return |
Phillips 66 Shares Outstanding History — Phillips 66 Share Count Over Time
As of 6/30/2026 Phillips 66 has 399.02 million PSX shares outstanding. Investors often track the PSX shares outstanding history to compare shareholder return trends against the change in share count over time.
This page shows PSX share count trends over time, with 58 historical shares outstanding datapoints presented, dating back to 4/30/2012.
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Phillips 66 Historical Shares Outstanding: -3.12% CAGR 
Mouse over chart for data details
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| PSX Stock Price Chart |
| About Phillips 66 |
| Phillips 66 is a diversified and integrated downstream energy provider that manufactures, transports and markets products that drive the global economy. Co.'s Midstream segment provides crude oil and refined petroleum product transportation, terminating and processing services, as well as natural gas and natural gas liquids (NGL) transportation, storage, fractionation, gathering, processing and marketing services, mainly in the U.S.. Its Chemicals segment consists of its 50% equity investment in Chevron Phillips Chemical Co. LLC, which manufactures and markets petrochemicals and plastics on a worldwide basis. We show 58 historical shares outstanding datapoints in our coverage of PSX's shares outstanding history. Understanding the changing numbers of Phillips 66 shares outstanding — and comprehending the concept of differing number of shares outstanding in general comparing companies like Phillips 66 versus peers — is critical for investors. Many "beginner" or "novice" investors will look at one stock trading at a price of $10 per share and another trading at a price of $20 per share and think the latter company is worth twice as much. Of course, that is a completely meaningless comparison without also knowing how many shares outstanding there are for each of the two companies. Furthermore, via issuance of new shares over time, or the repurchase of existing shares, the number of shares outstanding can fluctuate over the course of history. With this page we aim to empower investors researching Phillips 66 by allowing them to research Phillips 66 shares outstanding history as well as any other stock in our coverage universe. |
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| PSX Share Performance |
| Shares Outstanding Peers |
| Phillips 66 (PSX) is categorized under the Energy sector; to help you further research historical shares outstanding numbers, below are some other companies in the same sector:
PSXP Shares Outstanding History PTEN Shares Outstanding History PUMP Shares Outstanding History PVAC Shares Outstanding History PXD Shares Outstanding History QEP Shares Outstanding History QES Shares Outstanding History RCON Shares Outstanding History RDC Shares Outstanding History REN Shares Outstanding History More Energy companies » |
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