Should You Buy Phillips 66 Stock at its Current Premium Valuation?

Phillips 66 PSX is currently considered expensive on a relative basis, with the stock trading at a 10.25x trailing 12-month Enterprise Value to Earnings Before Interest, Taxes, Depreciation and Amortization (EV/EBITDA), which is a premium compared with the broader industry average of 5.41x. Such a premium valuation often signals strong market confidence in the company’s prospects. Valero Energy Corporation VLO and Par Pacific Holdings PARR, belonging to the same space, are valued at 6.85x and 3.29x, respectively.

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However, this elevated price necessitates a thorough assessment of the company’s fundamentals, growth potential and prevailing market conditions to check if it is justified.

PSX Expects Refining Margins to Remain Strong

On its second-quarter 2026 earnings call, PSX noted that there aren’t enough refineries or products globally right now because much refining capacity is offline and fuel inventories are low. China is also exporting less fuel than usual. This shortage helps keep refining margins, also called crack spreads, high. Management believes these shortages may take longer to resolve than in 2022, which could keep the energy major’s refining profits strong into the September quarter and potentially 2027. The broader scenario is also likely to favor other refiners like VLO and PARR.

PSX’s Resilient Business Model & Debt Reduction Focus

Although a leading refiner, PSX, unlike most of its refining peers, has diversified its business across midstream and chemicals. Along with investing in refining operations, Phillips 66 is allocating significant capital for midstream.

Midstream business, by its very definition, is stable since the company generates stable cash flows as the assets are being utilized for the long term and is less vulnerable to commodity price volatility. Hence, having a diversified business model, PSX is insulated from commodity price volatility to a great extent.

Moreover, debt reduction remains on track, with PSX targeting roughly $17 billion of total debt by 2026-end versus almost $21 billion in the second quarter, while net debt is expected to improve from $16.5 billion to lower than $16 billion.

Image Source: Phillips 66

Should You Bet on the Stock?

Investors’ strong preference for the stock is getting reflected in the price chart. In the past year, PSX has jumped 83.8%, outperforming the industry’s 81% growth. PARR and VLO have surged 175.6% and 143.1%, respectively, over the same time frame.

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Amid the positive developments, investors should also note that management highlighted ongoing regulatory policy risk, including the concern that after 2027, Renewable Identification Number (RIN) generation from foreign feedstocks could be cut in half. Given that RINs remain an important driver of the Renewable Fuels segment’s profitability, such a change could weigh on its earnings.

Thus, investors shouldn’t rush to bet on PSX stock, which is currently overvalued. However, those who have already invested can hold the stock, which carries a Zacks Rank #3 (Hold). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.

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This article originally published on Zacks Investment Research (zacks.com).

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