Phillips 66 (PSX) is back in focus after reporting second quarter 2026 results that showed higher sales, revenue and earnings, alongside progress on the planned US$5b Western Gateway Pipeline project.

Against this backdrop of strong Q2 results and the Western Gateway Pipeline announcement, Phillips 66’s momentum has been clear, with a 30 day share price return of 19.09% and a year to date share price return of 78.92%. The 1 year total shareholder return of 95.47% points to sustained interest over a longer horizon.

If you are looking for other opportunities in the energy value chain, this is a good moment to scan 38 power grid technology and infrastructure stocks

After a near 96% total return in 12 months and strong Q2 results, the question for Phillips 66 now is whether most of the rerating is already in the price or if the current valuation still points to meaningful upside ahead.

Most Popular Phillips 66 Narrative: 12.6% Overvalued

The most followed valuation narrative for Phillips 66 puts fair value at $207.53, which sits below the latest close of $233.61 and frames current pricing as rich against those assumptions.

Analysts are assuming Phillips 66's revenue will remain fairly flat over the next 3 years. Analysts assume that profit margins will increase from 3.1% today to 5.4% in 3 years time.

Read the complete narrative. Read the complete narrative.

Want to see what justifies paying above that fair value line? The narrative focuses on higher margins and a future earnings profile that looks very different to today. It explores how stable revenues and richer profitability combine with a new earnings multiple to reach that target.

Result: Fair Value of $207.53 (OVERVALUED)

However, there are still clear risks for Phillips 66, including potential pressure on refining and renewable fuels margins, as well as any disruption to Midstream cash flow stability.

Another View on Phillips 66: Our DCF Model

The analyst narrative frames Phillips 66 as 12.6% overvalued at $233.61 versus a fair value of $207.53. Our SWS DCF model points in the opposite direction and implies a fair value of $474.18, which is very far above the current share price and signals a very different risk reward picture.

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Phillips 66 for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 50 high quality undervalued stocks. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Next Steps

If this combination of confidence and caution around Phillips 66 leaves you curious, consider reviewing the data yourself and examining both sides of the story with 3 key rewards and 2 important warning signs

Looking for more investment ideas beyond Phillips 66?

If Phillips 66 has sharpened your interest in the sector, do not stop here. Broaden your watchlist with a few more focused ways to uncover potential opportunities.

• Target steady potential by weighing companies that aim to combine income with resilience through the 10 dividend fortresses.
• Hunt for potential value opportunities that pair stronger fundamentals with appealing prices using the 50 high quality undervalued stocks.
• Prioritise peace of mind by focusing on companies with sturdier financial footing through the 83 resilient stocks with low risk scores.

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.