The ASEAN+6 group comprises the ten countries of the Association of Southeast Asian Nations (ASEAN) and six other countries in the Asia-Pacific region: Australia, the People’s Republic of China ('China'), India, Japan, Korea and New Zealand. This group includes the world’s fastest-growing and most dynamic energy consumption centres. They are led by China, India and ASEAN, the emerging Asian economies, whose share of global energy demand is expected to reach 40% by 2040, up from only 20% in 2000.Energy demand in the ASEAN+6 countries is set to take diverse paths. In India, for example, low per capita energy use and a high population growth rate indicate the potential for substantial energy demand growth. In Japan, by contrast, a declining population and increasing energy efficiencies are contributing to a continuous fall in energy consumption. Countries of the region also differ in their natural resource wealth and their levels of socio-economic and technological development.These countries share common challenges, however, in ensuring the security of their energy supplies. Given their shared geographical location, they could help one another meet these energy security challenges by deepening regional co-operation.This report starts by giving an overview of the energy security issues of the region. Subsequent chapters cover the key energy sectors of oil, natural gas and electricity. They identify the main energy security issues, including a high level of vulnerability to natural disasters and heavy dependence on imports of fossil fuels, which must pass through major global chokepoints. The report provides policy advice, primarily for the region’s developing countries, based on the emergency response systems and accumulated experience in energy security of the International Energy Agency and its member countries.