The area in and around the Persian Gulf has world’s largest crude oil. Industries relating to crude oil are the main industries in this area. Al-Safaniya, the world’s largest offshore oil field is in the Persian Gulf. Many countries with large crude oil are in this area. They are called Persian Gulf States, that is, the countries around the Persian Gulf. These countries are Iran, Bahrain, Kuwait, Oman, Qatar, Saudi Arabia and the United Arab Emirates. Iraq (with its small portion touching the Persian Gulf) is not called a Persian Gulf State.