Brunei–Malaysia border Continental Shelf for the extended continental shelf in the South China Sea, which was lodged on 6 May 2009, continued to not recognise Brunei's continental shelf, EEZ and extended continental shelf claims. Coordinates and maps delineating Malaysia's 200 nautical mile limit off the coast of its Borneo states of Sabah and Sarawak form a continuous line from its intersecting point with the 200 nautical mile limit for the Philippines in the north, and the Indonesia-Malaysia maritime border in the south, despite Brunei forming an enclave in northern Sarawak which should have resulted in a break in Malaysia's 200 nautical mile
Brunei–Malaysia border Exchange of Letters were not revealed immediately after the signing on 16 March 2009 and news and information regarding the implementation of the terms the agreement, as well as its impact, has been scarce. However, a Brunei news report on 23 April 2010, more than a year after the signing, quoting the Sultanate's Second Minister for Foreign Affairs and Trade Lim Jock Seng, said Brunei had "retained ownership" of the two petroleum blocks which Malaysia had previously claimed. Lim was also quoted as saying that the matter was "sorted out during last year's agreement". However, as the question to Lim