U.S. Refiners Post Record Margins as Fuel Inventories Tighten and Prices Rise
U.S. refinery margins climbed to fresh record highs for a third straight session as shrinking domestic fuel inventories and worsening tensions in the Middle East raise the prospect of supply shortfalls. Diesel demand and constrained supplies have driven refiners' economics, while gasoline stockpiles have fallen sharply, lifting retail prices and sq…