Bruneian Workers Service Customers at a Shell Gas Station in Bandar Seri Begawan Brunei Darussalam on 29 June 2013 Brunei Shell is the Largest Oil and Gas Producer in Brunei Darussalam and Produces 350 000 Barrels of Oil and Gas Every Day with Over 200 Offshore Structures Brunei is the Host Country of the 20th Association of Southeast Asian Nations (asean) Regional Forum (arf) in July 2013 Brunei Darussalam Bandar Seri Begawan