Phillips 66 rose twofold in a year. Valero Energy rose 2.7-fold.

Same industry

PSX against four refining peers, a year at 100

PSX is up 2.1 times in a year. Valero Energy is up 2.7 times and Marathon Petroleum 2.4. Of these four, Conocophillips (+46.5%) and Chevron (+38.7%) did less. Weekly closes, Oct 10, 2025 = 100, on a log scale so a 2.7-fold rise and a 38.7% rise both read honestly.

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PSX ×2.1. Valero Energy ×2.7, Marathon Petroleum ×2.4, Conocophillips +46.5%, Chevron +38.7%. Weekly closes, Oct 10, 2025 = 100, log scale.

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End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in PSX’s SEC industry (Petroleum Refining) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.

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