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PetroChina (SEHK:857) Stock Still Trades At A Discount On A 375% Run

Simply Wall St·08/21/2026 21:25:49
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PetroChina stock has delivered very strong long term gains over the past five years, yet the current valuation checks still suggest the shares lean cheap rather than fully priced.

  • PetroChina has returned 375.4% over the last five years, which puts recent pricing under closer scrutiny for signs of over optimism.
  • Future cash generation and capital spending needs are likely to be the key swing factors for PetroChina's valuation, since sustained cash flows can support the current share price while heavy reinvestment or weaker margins may pressure it.
  • On Simply Wall St's broader checks, PetroChina screens as undervalued in 5 of 6 valuation tests, which points to a stock that still looks cheap on several fundamental measures rather than stretched.

The issue now is whether PetroChina's recent share price strength has already reflected those positives or if there is still room for further upside in the valuation.

PetroChina delivered 43.4% returns over the last year. See how this stacks up to the rest of the Oil and Gas industry.

Is PetroChina Still Cheap on Earnings?

The P/E ratio is a useful way to check how the market is weighing PetroChina's current earnings against its share price. For a large, established oil and gas producer, earnings-based metrics often give a clearer read than revenue alone.

PetroChina trades on a P/E of about 10.0x, compared with an oil and gas industry average of roughly 13.4x and a peer group average near 11.0x. On Simply Wall St's more tailored fair P/E, which looks at earnings quality, scale and risk, PetroChina screens at about 13.8x. That is meaningfully above the current market multiple and highlights a material gap between where the stock trades and where this framework suggests it could reasonably sit.

This spread indicates the market is pricing PetroChina below both the broader industry and the modelled fair multiple, even after the strong share price gains reported over the past five years.

On the P/E multiple, PetroChina stock currently appears undervalued compared with both its sector and the modelled fair ratio.

SEHK:857 P/E Ratio as at Aug 2026
SEHK:857 P/E Ratio as at Aug 2026

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

The PetroChina Narrative: What Would Justify Today's Price?

Simply Wall St Narratives pick up where the PetroChina valuation puzzle leaves off. They explain which paths for PetroChina's growth, margins and earnings would need to hold for the stock to be worth materially more or materially less than today's price, and they do this on the Community page. Rather than rely on a single multiple, each framework lays out the assumptions behind its fair value so you can compare those with actual results over time.

You can share a PetroChina Narrative on the Simply Wall St Community page and set out a number driven view on where its growth, margins and execution go from here. Add your voice now and see how your thesis holds up as new results and updates arrive.

Do you think there's more to the story for PetroChina? Head over to our Community to see what others are saying!

The Bottom Line

PetroChina continues to screen as undervalued on market multiples, even after a very strong five year share price move. The gap between its current P/E and the industry and tailored fair P/E suggests the market is still applying a discount that broader checks do not fully support.

The key question from here is whether PetroChina can sustain cash generation and capital discipline that justify a higher multiple. That is also where the risk sits. If margins or reinvestment needs shift against it, the current discount could prove closer to fair than it looks today.

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.