The dramatic escalation in tensions between Israel and Iran caused a spike in the price of crude and raised fears among oil traders about disruption to shipping in the Strait of Hormuz, one of the world’s most vital waterways.

The conflict between Israel and Iran has reached an unprecedented level, with verbal threats and aerial engagement with ballistic, cruise missiles, and drones.

LONDON (Reuters) -Iran is maintaining crude oil supply by loading tankers one at a time and moving floating oil storage much closer to China, two vessel tracking firms told Reuters, as the country seeks to keep a key source of revenue while under attack from Israel.