Crude oil fell sharply after Washington and Tehran agreed a 2-week cease-fire deal that included allowing shipping to transit the key Strait of Hormuz

The price of oil seesawed in trading in response to U.S. President Donald Trump's imminent threat to obliterate Iranian power plants and bridges.

Earlier, U.S. stocks swung sharply during regular trading as uncertainty about the war with Iran increased after Trump had threatened that a “whole civilization will die tonight."