Marathon Petroleum earned more in one quarter than in all of 2025

Marathon Petroleum made $7.4 billion of net income in the September 2026 quarter, more than the $4.0 billion it earned in the whole of 2025. Calculated from the filed results, one quarter brought in about 1.8 times the previous year's profit. A refiner buys crude oil and sells gasoline, diesel and jet fuel, so its earnings depend on the gap between those prices, the crack spread. That gap is what changed.

The company's results put the cause plainly: refining earnings rose mainly on higher market crack spreads in every region it operates in. Marathon also ran its plants harder than it had planned. Crude utilization reached 100% last quarter, against the 94% management had guided in August.

The company's own yardstick for how much of that market margin it keeps, which it calls capture, went the other way. Capture was 93% last quarter, down from 112% the quarter before. Maria Khoury, the chief financial officer, blamed by-products whose prices rose less than benchmark gasoline and diesel: "Secondary products were a material headwind, the largest we have seen on an absolute basis to capture". Rick Hessling, another executive, said October looked the same. He also said Marathon leaves out of capture some crude-cost gains that other refiners count in theirs, so the figure does not compare neatly across companies. Either way, the profit came from the market rather than from Marathon keeping a larger share of it.

In the same results, Marathon announced that it had agreed to sell its St. Paul Park and Mandan refineries, with related midstream assets, to CVR Energy for $4.2 billion, of which Marathon keeps $3.45 billion. The rest goes to its pipeline affiliate MPLX, at nine times the logistics assets' forecast 2027 adjusted EBITDA. The deal is expected to close by the end of this year, and Khoury said the refining proceeds will be taxed. Maryann Mannen, the chief executive, said the company does not intend to shrink its refining footprint and wants to put capital into the Gulf Coast instead.

The cash pile is already large. Cash, equivalents and short-term investments reached $13.6 billion at the end of September, including cash held at MPLX, and that was after $3 billion of share buybacks during the quarter. The board added $5 billion to the buyback authorization. In August, Mannen put the cash the company needs to hold at roughly $1 billion; on the latest call management spoke of a targeted cash framework, and neither the call nor the release put a number on it.

How much of the sale proceeds goes into Gulf Coast projects waits for the detailed capital plan, which Mannen said comes with the fourth-quarter results in February. She said growth spending has averaged a little over $1 billion a year and that the total for 2027 is likely to be higher if more goes to the Gulf Coast.

That plan will be drawn up against an outlook management has stretched. In August it expected the strong conditions to last through the year and into the next. This time Mannen said margins should stay elevated "through at least mid-2027", with better-than-normal conditions through the end of the decade, and pointed to 10 million barrels a day of refining capacity offline around the world. The quarter's profit, the sale proceeds and the cash pile all rest on that market, which management expects to stay elevated until at least the middle of next year.