European diesel futures and the U.S. dollar surged on speculation of a domestic diesel export ban. The U.S. government is considering the move to protect local supplies and reduce record-high prices.
Global diesel markets face existing strain from conflicts in the Middle East and Ukraine. These tensions have already reduced exports from major producers Russia and Saudi Arabia.
President Trump publicly supports the ban as officials evaluate its feasibility. Analysts warn the policy could disrupt markets in Europe and Latin America.
Industry groups argue the ban might force U.S. refiners to cut production. This shift could paradoxically increase domestic prices for other fuels like gasoline.