Global diesel supply has fallen approximately 8%, or roughly 2 million barrels per day, as Ukrainian attacks disrupt Russian refining and Middle Eastern conflict constrains fuel production and exports. International Energy Agency figures cited by The Wall Street Journal indicate lost Middle Eastern diesel output is about three times the volume lost from Russia. U.S. retail diesel prices have surpassed $6.50 a gallon, while European markets face rising prices and tight replacement supplies. Russia extended its diesel-export ban until the end of October after further Ukrainian drone strikes, including an attack on one of its largest refineries. U.S. lawmakers are considering a diesel-export ban, with Rep. Tim Burchett introducing legislation and Senate Majority Leader John Thune backing the proposal, although Energy Secretary Chris Wright and Interior Secretary Doug Burgum oppose it. The shortage reflects disrupted Middle Eastern infrastructure, Russian refinery outages, restricted Hormuz tanker traffic and limited global spare refining capacity. A Lukoil-owned Romanian refinery with capacity of about 50,000 barrels per day remains idle amid sanctions and a delayed proposed sale to Carlyle Group.