Oil prices jumped about 8% Tuesday as the U.S.-Israel air war against Iran blocked shipments through the Strait of Hormuz, now closed for a fourth day. Brent hit $83.81 a barrel, its highest since July 2024, while U.S. gasoline and diesel futures surged past $3 a gallon. Iraq cut output by over 1 million barrels per day. President Trump is reviewing options to control energy prices, including use of the Strategic Petroleum Reserve.