U.S. diesel prices hit an all-time high on Sept. 22, and President Trump has voiced support for a temporary ban on diesel exports to bring costs down. But the plan could backfire: America already refines more diesel than it needs, and industry group AFPM warns a ban would cut refiners' output, push gasoline prices up too, and invite retaliation from trading partners.
Diesel at the pump has climbed 83% in 2026. On Sept. 22 the national average reached an all-time high of $6.5276 a gallon. With midterm elections due in November, Republican lawmakers from states including Iowa and Tennessee have proposed a temporary ban on diesel exports to ease costs for farmers and truckers. President Trump told reporters he was open to the idea: "I've said let's not send out the diesel."
Why the U.S. exports diesel at all
The high pump prices are not a supply problem. U.S. refineries produce about 5.3 million barrels a day of distillate fuel, against domestic diesel demand of about 3.6 million barrels a day. The country exports roughly 1.5 million barrels a day of diesel, about 20% of the diesel traded internationally. A ban on crude oil exports had been in place for decades before it was lifted in 2015. That earlier ban traced back to the 1973 Arab oil embargo.
A short-term fix that could raise long-term costs
According to Bloomberg analysis, a ban could create a domestic diesel glut that lowers prices in some regions in the short run, though other regions would see little relief because of how diesel is refined, shipped, and sold regionally. The American Fuel & Petrochemical Manufacturers trade group said a ban would force refiners to cut diesel production, which could also reduce gasoline output and raise pump prices for everyone. It also warned a ban would likely draw retaliation from countries that sell the U.S. oil and gas, pushing up the cost of fuel imports and deepening trade tensions with trading partners.
Energy stocks face a new risk
The Vanguard Energy ETF (VDE), where refiners make up about 13.7% of holdings, has returned about 41% over the past year. The Motley Fool's Ben Gran does not expect the ban to pass, since politicians from oil-producing states oppose it and it may not meaningfully lower fuel costs for long. Still, the fact that the export ban is even being discussed is itself a warning sign for energy investors watching the fund.
Source: Fool
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