Phillips 66 stock gains as diesel margins drive strong earnings growth

Published on 09/21/2026 at 19:30 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Phillips 66 stock closed at USD 272.99 on September 18, 2026, more than doubling year-to-date after a second quarter with USD 52.04 billion in revenue and sharply higher earnings. Analysts highlight diesel margins above USD 100 per barrel as a key profit driver for Phillips 66 stock.

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Phillips 66 stock (ISIN US7185461040) has surged on the back of exceptionally high diesel refining margins, with the shares closing at USD 272.99 on the New York Stock Exchange on September 18, 2026, up 116.03% since the start of the year per recent market data cited by 247wallst.

Strong second quarter lifts earnings

According to 247wallst, Phillips 66 generated USD 52.04 billion in revenue in the second quarter of 2026, reflecting a strong increase in sales versus the prior-year period as refining margins expanded.

The same report notes that adjusted earnings per share reached USD 9.41 in that second quarter, compared with a consensus estimate of USD 8.0855, meaning Phillips 66 delivered an earnings beat of USD 1.32 per share against expectations.

Refining momentum and valuation metrics

A comparative analysis of US refining companies from Zacks via TradingView on September 21, 2026 highlights that in the six months leading up to that date, Phillips 66 stock advanced 54.5%, while competitor Marathon Petroleum gained 82.7%, underlining the strong momentum in the refining sector overall.

The same Zacks-based overview states that Phillips 66 trades at a forward price-to-earnings ratio of 9.62 times, compared with 7.51 times for Marathon Petroleum, and that consensus expectations imply a 339.1% year-over-year increase in Phillips 66 earnings per share for 2026.

Stock price level and market context

Per recent summary data from 247wallst, Phillips 66 stock closed at USD 272.99 on September 18, 2026 on the NYSE, representing a 116.03% year-to-date gain, which places the stock among the strongest performers in the US energy space for 2026.