Santos (ASX:STO) After Cutting 2026 Guidance Still Has An Undervalued Case

Santos (ASX:STO) cut its 2026 production guidance to 99 to 105 million barrels of oil equivalent, down from 101 to 111 MMboe, even as the Barossa and Pikka projects progress toward higher output levels.

See our latest analysis for Santos.

Santos shares have been gaining positive momentum, with a 1-month share price return of 13.21% and a year to date share price return of 29.59%. The 5-year total shareholder return of 55.41% points to solid long term compounding, despite a more modest 1-year total shareholder return of 7.37% as investors weigh the revised 2026 production guidance.

If you are reassessing Santos after its updated outlook, it could be a good moment to see what other energy related plays are doing through our screener of 90 nuclear energy infrastructure stocks

The question now is whether Santos shares are reacting mainly to a cooler production outlook or to a reset in sentiment after a strong run, and how that balance lines up against the current valuation.

Most Popular Narrative: 10.3% Undervalued

The most followed valuation narrative on Santos pegs fair value at A$8.89 a share versus the last close at A$7.97, which implies upside that some investors may feel is not fully reflected in the current price.

Santos (ASX: STO) experienced a sharp share price drop after the failed A$36 billion takeover by a consortium led by ADNOC. While the deal’s withdrawal removed a near-term premium, it highlighted the strategic value of Santos’ LNG and gas assets. The offer implied a potential upside of approximately 30 to 35% from pre-bid levels, suggesting the market may still be underpricing the company.

Read the complete narrative.

Want to understand why this narrative still sees upside in Santos after a failed A$36b approach and recent profit strength? The key is how it ties production growth, margin assumptions and future cash generation into a single fair value number, and where that sits versus recent market pricing.

Result: Fair Value of A$8.89 (UNDERVALUED)

Have a read of the narrative in full and understand what's behind the forecasts.

However, Santos investors still face project execution and regulatory setbacks that could hit valuations if Barossa, Pikka or other approvals and timelines are disappointing.

Find out about the key risks to this Santos narrative.

Next Steps

If this Santos story feels finely balanced between risk and reward, take a moment now to review the full picture for yourself through 2 key rewards and 1 important warning sign.

Looking for more investment ideas beyond Santos?

If Santos has your attention, do not stop here. Broaden your watchlist now so you are not relying on a single story when markets shift.

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• Spot potential value opportunities early by scanning the 8 high quality undervalued stocks and seeing which stocks align with your return and risk preferences.
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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.

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