Company overview
Plains All American Pipeline, L.P., through its subsidiaries, engages in the pipeline transportation, terminaling, storage, and gathering of crude oil and natural gas liquids (NGL) in the United States and Canada. The company operates through two segments, Crude Oil and NGL. The Crude Oil segment offers gathering and transporting crude oil through pipelines, trucks, and on barges or railcars. This segment provides terminaling, storage, and other related services, as well as merchant activities. The NGL segment is involved in natural gas processing and NGL fractionation, storage, transportation, and terminaling. This segment also includes ethane, propane, normal butane, iso-butane, and natural gasoline derived from natural gas production and processing activities, as well as crude oil refining processes. Its NGL components are used for various applications, such as heating, engine, and industrial fuels. The company was founded in 1981 and is headquartered in Houston, Texas. Plains All American Pipeline, L.P. operates as a subsidiary of Plains GP Holdings, L.P.
Daily valuation snapshot
These values come from the daily market snapshot dated 2026-10-08. TTM means trailing twelve months. Use the market date when comparing PAA with another company.
| Daily close (USD) | $24.42 |
| Market capitalization (USD) | $17,229,932,953.2 |
| Price / earnings (TTM) | 6.23 |
| Price / book | 1.21 |
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Read PAA's valuation metrics
Company size
Plains All American Pipeline, L.P. Common Units representing Limited Partner Interests's recorded market capitalization is $17,229,932,953.2. It measures the market value of the company's equity, rather than its revenue or cash balance.
Price relative to earnings
PAA's recorded P/E is 6.23: about $6.23 of share price for each $1 of trailing annual earnings per share. Compare that multiple with earnings growth and companies in the same business.
Price relative to book equity
PAA's recorded price-to-book ratio is 1.21. That compares its market equity value with recorded book equity. Examine its business and balance sheet to understand why those values differ.
Research Plains All American Pipeline, L.P. Common Units representing Limited Partner Interests with Aurora
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