Situated below Jebel Dukhan, Well #1 was the first ever oil well in the southern part of the Arabian Gulf. The well which was operated by The Bahrain Petroleum Company (Bapco) produced first oil on 16 October 1932 at an initial rate of 9,500 bopd. In 1970 the field peaked at 79,000 bopd, and after that it started to decline to around 32,000 bopd by 2009.