Chevron CEO Warns Diesel Export Curbs Could Raise US Prices

Chevron CEO Mike Wirth has warned that restricting U.S. diesel exports could backfire, raising prices in some parts of the country and creating supply concerns for allies. Speaking at the Energy Intelligence Forum in London on October 6, 2026, Wirth argued that limiting exports would remove fuel from an already tight global market, potentially harming American consumers rather than helping them. “Restricting supply, which an export ban would do… constrains supplies at the time when the world needs them. The U.S. is not independent of world markets,” Wirth said, according to Reuters.

The warning comes as global diesel markets face mounting pressure due to international conflicts and lower refined-fuel supplies. Wirth described the energy system as more fragile than earlier in the U.S.-Israeli war, with thinning oil and fuel supply buffers. The G7 nations recently agreed to release 100 million barrels of crude oil and diesel from strategic reserves to increase available supplies, amid discussions of possible U.S. diesel export restrictions.

For U.S. farmers, higher diesel prices are already adding significant expenses during harvest season. The American Farm Bureau Federation found that the farm diesel price increased from $3.01 per gallon in September 2025 to $5.61 per gallon in September 2026, adding approximately $2,227 to the fall harvest diesel bill for a representative 279-acre corn farm. Higher diesel prices affect farmers both directly through machinery operating costs and indirectly through higher transportation expenses.

U.S. diesel inventories remain low, with the U.S. Energy Information Administration forecasting that inventories would fall below 100 million barrels in September 2026 and remain below the five-year low through much of 2027. Low inventories reduce protection against supply disruptions and periods of stronger demand, particularly during harvest season. Wirth’s argument is that limiting exports would constrain available global supplies without necessarily delivering lower prices for American consumers.