Energy Secretary Chris Wright opposed an outright diesel export ban on September 23, warning that stopping shipments could raise U.S. gasoline and jet fuel prices. His comments exposed a disagreement over how to lower fuel costs a day after President Donald Trump backed restricting exports. Reuters reported Wright’s remarks.
Wright also described a narrower approach. In an interview at The Wall Street Journal’s Journal House event in New York, he said the administration would pursue voluntary restrictions while keeping the world supplied with diesel, according to Oil Price Information Service. That account describes a proposed approach, not an operating export prohibition.
The distinction matters for overseas buyers as well as American consumers. On September 22, Treasury Secretary Scott Bessent said officials were examining whether a full or partial restriction could work within the country’s refining system. Trump said he supported withholding diesel exports but acknowledged a possible effect on gasoline, Roll Call reported.
Why a diesel export ban divides officials
Supporters want more fuel available at home. In September 22 Senate floor remarks, Iowa Republican Chuck Grassley urged Trump to impose a temporary embargo through executive action to help farmers. He also suggested that oil companies could sell diesel more cheaply domestically than abroad. These were proposals for relief; the speech did not establish how much consumers would save or for how long.
Wright’s objection concerns what happens inside refineries. He said a diesel export ban could leave producers without enough storage for the diesel they make. They would then reduce refining, cutting the output of other fuels alongside diesel and putting upward pressure on gasoline and jet fuel prices. Reuters’s account presents that as his warning about a ban, not an effect already observed.
A separate S&P Global Energy CERA analysis examined a complete diesel export ban lasting from October through December 2026. Under that modeled scenario, constrained storage would encourage refiners to process less crude. Analysts estimated a reduction of about 1.9 million barrels a day, approximately 12% of U.S. refinery throughput. Those dates and quantities describe the analysts’ scenario, not an announced government timetable or a forecast for voluntary restrictions.
Price effects could also vary within the United States. Former presidential energy adviser Bob McNally predicted brief relief along the Gulf Coast and in the Upper Midwest, while he and other analysts warned that the more import-dependent Northeast and West Coast could face increases. Roll Call’s reporting underscores why a national diesel export ban would not necessarily produce the same result at every pump.
Overseas customers face a different risk
S&P’s shipping data put August U.S. diesel exports at 1.6 million barrels a day, with most going to Latin America and Europe. A diesel export ban would therefore reach beyond domestic price policy. S&P’s analysts projected higher prices in those overseas markets under their full-ban scenario. The trade estimate and forecast measure different things: actual recent shipments and a conditional future outcome.
Historical Energy Information Administration data show the trading relationships involved. In 2025, Mexico received about 220,000 barrels a day of U.S. distillate fuel oil, chiefly diesel, accounting for 17% of U.S. distillate exports. Chile ranked second and Brazil third. The United Kingdom received 89,000 barrels a day and the Netherlands 98,000. These annual figures identify customers; they do not measure a current shortage or predict how individual countries would replace lost shipments.
In Mexico, PetroIntelligence chief executive Alejandro Montufar warned that interrupted U.S. deliveries would require supplies from farther away, raising transport times and costs, El País reported. The same report cited President Claudia Sheinbaum’s Monday assurance that supply was guaranteed and diesel subsidies would continue. Her statement preceded Wright’s Wednesday remarks; it was not a response to his proposed voluntary approach.
For the diesel export ban debate, the next consequential details are the scope, participants and starting date of any restriction. The reporting reviewed does not establish those terms for an implemented voluntary plan. Predictions remain conditional, a distinction reflected in The Civic Wire’s editorial standards.