 Sheikh Ahmad's rule witnessed the growing economic activities in the country as the result of the discovery of a large number of oil fields in Qatar.At that time, and in January 1964, full-scale production commenced in the Idd al-Shargi field, the first seabed field in the world to be operated entirely as an offshore facility.Moreover, in 1963, the larger field at Maydan Mahzam was discovered and in 1965 an oil terminal was set up on the Island of Halul.