evidence: Kuwait is largely a desert, except for Al-Jahrāʾ oasis, at the western end of Kuwait Bay, and a few fertile patches in the southeastern and coastal areas. Kuwaiti territory includes nine offshore islands, the largest of which are the uninhabited Būbiyān and Al-Warbah. The island of Faylakah, which is located near the entrance of Kuwait Bay, has been populated since prehistoric times. A territory of 2,200 square miles (5,700 square km) along the gulf was shared by Kuwait and Saudi Arabia as a neutral zone until a political boundary was agreed on in 1969. Each of the two countries now administers half of the territory (called the Neutral, or Partitioned, Zone), but they continue to share equally the revenues from oil production in the entire area. Although the boundary with Saudi Arabia is defined, the border with Iraq remains in dispute.