U.S. diesel refining margins hit record above $106 per barrel

U.S. diesel refining margins surged above $106 per barrel, a record, as global fuel supplies tighten. Disruptions from the Iran conflict, Strait of Hormuz, and Ukrainian attacks on Russian refineries have intensified shortages. Strong exports have pushed domestic diesel inventories to record seasonal lows. Retail diesel near $5.63/gal lifts inflation concerns.