Plains All American Pipeline (PAA) Stock Looks Undervalued On Earnings But Mixed On Fair Value

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Plains All American Pipeline has delivered a very strong 5 year share price return, but the latest valuation checks present a more mixed picture that stops short of calling the stock an outright bargain.

• The gain of around 236% over 5 years points to a stock that has already rewarded patient investors and raises the bar for what counts as good value today.

• Plans to lift capital spending in 2026 to US$400 million to US$450 million may support future earnings, but higher investment also introduces execution and return on capital risk if projects underperform expectations.

• With a value score of 4 out of 6, Plains All American Pipeline screens as moderately cheap on some measures, while other checks suggest only a fair price rather than a clear discount.

The issue now is whether Plains All American Pipeline’s current valuation still offers enough potential to justify the risk after such a strong multi year run.

Plains All American Pipeline delivered 31.7% returns over the last year. See how this stacks up to the rest of the Oil and Gas industry.

Is Plains All American Pipeline Still Cheap on Earnings?

P/E is a useful cross check for Plains All American Pipeline because earnings remain a key reference point for how the market values its cash generating ability. The stock currently trades on a P/E of about 20.7x, which is slightly below the peer group average of 21.8x and above the broader Oil and Gas industry average of 13.4x. That combination points to a company priced at a premium to the sector overall, but not stretched relative to closer peers.

On Simply Wall St’s fair P/E estimate of 24.6x, which reflects factors such as Plains All American Pipeline’s margins, risk profile and size, the current 20.7x multiple implies a discount to what the model suggests as a more tailored benchmark. Despite the recent announcement of higher 2026 capital spending, the market is not assigning a higher P/E than that implied fair level.

Putting those reference points together, the current P/E multiple suggests that Plains All American Pipeline stock may be trading below the valuation implied by this particular model.

See what the numbers say about this price — find out in our valuation breakdown.

The Plains All American Pipeline Narrative: What Would Justify Today’s Price?

Simply Wall St Narratives give you a way to connect Plains All American Pipeline’s current valuation puzzle to concrete assumptions about its future growth, margins and earnings by spelling out what would need to happen for the stock to be worth much more or much less than today’s price. Each narrative ties a fair value to a specific mix of potential catalysts and risks so you can track over time which version of Plains All American Pipeline’s story appears to be unfolding on the Community page.

If you have a number driven view on whether Plains All American Pipeline’s higher 2026 capital spending guidance of US$400 million to US$450 million delivers, share a Narrative and be one of the early voices shaping how the Simply Wall St community tracks this story.

Setting out your case on Plains All American Pipeline now gives you a clear reference point you can return to as new results and project updates arrive.

Do you think there’s more to the story for Plains All American Pipeline? Head over to our Community to see what others are saying!

The Bottom Line

For Plains All American Pipeline, current market multiples hint at an undervalued stock, but broader checks paint a more mixed picture that leaves less room for error. The key question is whether the planned increase in 2026 capital spending can earn solid returns without eroding the company’s financial discipline. For now, the valuation debate hinges on a single issue: whether those projects translate into durable earnings power or simply justify why the market is cautious about paying up from here.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Companies discussed in this article include PAA.

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