The study of oil supply resiliency aims to share Japan experience with ASEAN countries in dealing with oil supply disruption either from abroad or domestically as a result of natural or artificial disasters. After the Great East Japan Earthquake in 2011, Japan supply of oil products, gas, and electricity was disrupted in some regions. As a result, the government and the industry comprehensively reviewed their energy policies after the event. Domestic oil supply was one of the issues, and a set of measures were taken to ensure the stable supply and the swift recovery in case of disruption.