Oil Prices Plummet as U.S. and Iran Negotiate Ceasefire

Global crude oil prices suffered their steepest monthly decline since 2020 in May 2026, with Brent and West Texas Intermediate (WTI) futures dropping roughly 10% in a single week. The decline followed reports that Donald Trump and Iranian negotiators reached a tentative agreement to extend a ceasefire for 60 days and lift shipping restrictions in the Strait of Hormuz, which has been effectively closed since February 28.

While the deal seeks to restore flow through the maritime chokepoint, contradictions remain regarding its finalization. President Trump indicated he would make a final determination in the Situation Room, while the Iranian Foreign Ministry maintained that no final understanding had been reached. U.S. Secretary of State Marco Rubio noted progress but asserted that any deal is unfeasible if Iran retains control of the strait. Simultaneously, the U.S. Treasury Department tightened sanctions on Iran's shadow oil economy, adding eight tankers and 15 entities to its OFAC list.

Energy executives warn that the price drop may be premature. Chevron CEO Mike Wirth and ExxonMobil's Neil Chapman cautioned that global inventories are at critically low levels and that full normalization could take months due to the need to clear mines and manage vessel congestion. The International Energy Agency further warned that full normalization of shipping may not occur until 2027.