Eyes on the Strait of Hormuz as oil tankers start moving

US and Iranian officials have signed a 'memorandum of understanding' to end the war which began in March. Oil and LNG prices are expected to fall as ship traffic resumes. Dozens of Ukrainian drones have struck the biggest oil refinery in Russia's capital Moscow. Many parts of Russia have suffered fuel shortages in recent weeks. And Cuba's Communist government has approved reforms to try and revive its economy in the face US oil blockade.