Marathon Petroleum (MPC) Surges 4.6% in a Single Session to $411
As seen on the 24/7 Wall St. homepage on October 1, 2026.
A 4.57% intraday gain to $411.10 is a big single session for a $115 billion refiner, adding billions in market value before lunch. Whether it holds into the close is the thing to watch.
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Marathon Petroleum gained roughly 4.57% during regular trading hours. For a company of this size, that kind of intraday move translates to billions of dollars added to its market value before the afternoon even begins.
The stock pushed higher almost immediately off the open, with the bulk of the gain locked in well before midday. A brief midday pullback drew buyers back in, who pushed the price toward fresh intraday highs, a sign the early move had conviction behind it.
What matters for investors now is whether the stock can hold these levels into the close. A gain that finishes near the session high sends a stronger message, and the remaining hours of trading will determine which story this turns out to be.
Marathon Petroleum is one of the largest refining operations in the country, so a move of this magnitude in a single session draws attention across the energy sector. Investors who were not positioned coming into the day are now watching to decide whether chasing this strength makes sense or whether patience is the better call.
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Mentioned: MPC