Breaking: Trump calls for ban on U.S. diesel exports; U.S. is world's largest exporter

President Trump's call to ban U.S. diesel exports targets a major global supply source, tightening availability for import-dependent regions and raising refined-product price volatility. The move could distort crack spreads, shift refinery utilization, and heighten policy and regulatory uncertainty across the energy complex. Near term, markets may reprice U.S. refining margins and broader crude-product linkages amid potential retaliatory trade and logistics disruptions.