Wholesale motor oil prices are rising rapidly, and some industry executives are warning of imminent shortages caused by the war with Iran.

Global oil inventories fell 250M barrels in two months as the Iran war blocks the Strait of Hormuz, triggering a worldwide scramble for energy supplies.

As the Iran war upped oil prices, transportation and warehousing costs rose 5% in April and wholesale energy prices rocketed 7.8%, per the Bureau of Labor Statistics.