The war involving the United States, Israel, and Iran has caused big problems for the world's oil supply. A very important narrow sea passage called the Strait of Hormuz – through which a large part of the world's oil normally travels by ship – has seen almost all traffic stop because of the conflict. As a result, the global price of Brent crude oil, which is the main benchmark that many countries use, recently climbed as high as $119 per barrel. This is very close to the hig