Ahmed Zaki Yamani was a Saudi Arabian politician who was Minister of Oil (Petroleum) and Mineral Resources from 1962 to 1986, and a minister in the Organization of the Petroleum Exporting Countries (OPEC) for 25 years. With degrees from various institutions including New York University School of Law, Harvard Law School, and a doctorate from the University of Exeter, Yamani became a close adviser to the Saudi government in 1958 and then became oil minister in 1962. He is known for his role during the 1973 oil embargo, when he spurred OPEC to quadruple the price of crude oil.