"In October 1973, the Organization of Arab Petroleum Exporting Countries (OAPEC) announced that it was implementing a total oil embargo against countries that had supported Israel at any point during the 1973 Yom Kippur War, which began after Egypt and Syria launched a large-scale surprise attack in an ultimately unsuccessful attempt to recover the territories that they had lost to Israel during the 1967 Six-Day War. In an effort that was led by Faisal of Saudi Arabia,[1] the initial countries that OAPEC targeted were Canada, Japan, the Netherlands, the United Kingdom, and the United States."
https://en.wikipedia.org/wiki/1973_oil_crisis