Brunei–Malaysia border Total, allowing it to resume operations in the area after suspending activities since 2003. The Production Sharing Agreement for CA2 was signed on 13 December 2010. This block is run by a consortium of PETRONAS Carigali Brunei Ltd (operator), Canam Brunei Oil Ltd. (Murphy), Shell Deep Water Borneo Ltd, ConocoPhillips & Diamond E&P B.V. (Mitsubishi). During the 15th Annual Brunei-Malaysia leaders' consultation which was held on 12 September 2011, the Sultan of Brunei Hassanal Bolkian and Malaysian Prime Minister Najib Razak released a joint statement declaring that the Brunei National Petroleum Company and Petroliam Nasional Berhad (PETRONAS) will work on
Indonesia–Malaysia border the area. The dispute started with Malaysia issuing a map in 1979 of its territorial sea and continental shelf which included the Ambalat block. The map drew Malaysia's maritime boundary in a southeast direction into the Celebes Sea after it leaves the eastmost point on land on Sebatik island. This would include the Ambalat block, or a large part of it, within the Malaysian continental shelf. Indonesia has, like the other neighbours of Malaysia, objected to the map. Indonesia has never officially announced the exact locations of its maritime boundaries but claimed during its arguments in the Sipadan Case that