83, Oman's Saiad Sultan, defeated ruler of Muscat, was granted sovereignty over Gwadar, a coastal city located in the Makran region of what is now the far southwestern corner of Pakistan, near the present-day border of Iran and at the mouth of the Gulf of Oman. He was to continue this sovereignty, via an appointed wali (or "governor"), after regaining control of Muscat, and he maintained close relations with the Emirs of Sindh. The Sultans of Muscat retained sovereignty over Gwadar until 1958.
In 1955, Makran acceded to Pakistan and was made a district – although Gwadar, at the time, was not included in Makran. On 8 September 1958, Pakistan purchased the Gwadar enclave from Oman for $3 million. Gwadar then became a tehsil in the Makran district.
Jebel Akhdar War
The Hajar Mountains, of which the Jebel Akhdar, or Green Mountain, is a part, separated the country into two distinct regions: the interior, known as Oman, and the coastal area dominated by the capital, Muscat. Imam Ghalib bin Ali Al Hinai (1912 – 29 November 2009) was the elected Imam of The Imamate of Oman. Relations between the Sultan of Muscat, Said bin Taimur, and Imam Ghalib were ruptured over a dispute concerning the right to grant oil concessions. A subsidiary of the Iraq Petroleum Company was intensely interested in some promising geological formations near Fahud. Under the terms of a 1920 treaty, the Sultan of Muscat was responsible for the external affairs of Oman. The Sultan claimed all dealings with the oil company as his prerogative. The Imam, on the other hand, claimed that since the oil was in his territory, anything dealing with it was an internal matter. In December 1955, Sultan Said bin Taimur sent troops of the Muscat and Oman Field Force to occupy the main centres in Oman, including Nizwa, the capital of the Imamate of Oman, and Ibri. Imam Ghalib bin Ali along with his younger brother Talib bin Ali Al Hinai, led the Imamate of Oman in the Jebel