Brunei–Malaysia border claim a continental shelf beyond its 200 nautical mile limit. It defined its current "territorial sea and continental shelf" boundary with Malaysia in accordance with the North Borneo (Definition of Boundaries) Order in Council 1958 and Sarawak (Definition of Boundaries) Order in Council 1958 up to the 100 fathom isobath, and its "territorial sea, exclusive economic zone and continental shelf" boundary with Malaysia up to the 200 nautical mile limit in accordance with 16 May 2009 Exchange of Letters between the two countries. No details of the boundaries were however given. Brunei said its full submission which should bear the
Brunei and Malaysia Brunei and Malaysia Brunei and Malaysia: " Why Sultan Omar Ali Saifuddin Refused to Join the Federation " is a 2013 book written by Isa Bin Ibrahim, a prominent member of the delegation of Sultan Omar Ali Saifuddin of Brunei with Neil Lawson QC, a London lawyer acting as the constitutional adviser on the formation of Malaysia. The book offers an inside perspective on Brunei's determination to retain its territory as an oil-rich self-governing state, contrasted with the British desire that Brunei should become part of the new federation to help counter the regional influence of China. Tunku Abdul Rahman