5. Brunei Darussalam
GDP per capita $55,111.20
90% of Brunei Darussalam’s GDP comes crude oil and natural gas production. The country is the 4th largest producer of oil in Southeast Asia. Brunei is one of only two countries in 2011 that had public debt at 0% of GDP. Brunei relies heavily on foreign imports for food which has concerned leaders about the increasing integration in the world economy will undermine the internal social cohesion.