Americans were hurt the most; 160 billion dollars in additional fuel costs following the war with Iran The research of the Finnish Center for Energy and Clean Air Research shows that disruption of the fuel supply following the US-Israel war against Iran and the practical closure of the Strait of Hormuz imposed an additional cost of 468 billion dollars on the consumers of 169 countries of the world, and the Americans bore the largest financial burden of 16 billion dollars for this war and additional costs of 16 billion dollars.