Abstract and Introduction This analysis has been implemented firstly under the project of ‘Development of information Sharing Platform on oil and HNS spills in the NOWPAP region' which was propose at the 18th MERRAC Focal Points meeting (August 2015) and approved by the 20th NOWPAP Intergovernmental meeting (November 2015). The detailed information on scope of data collection used in this analysis is as follows; Data used in this analysis was scoped from the year of 1990 to 2017Incidents of oil spillage with over 10 tons were only collected from the member states on a regular basisMERRAC established the guidelines to clear the terms and meanings to analyzeFrom 1990 to 1997, incidents of oil spill with over 50 tons were collectedThe incident data provides incident dates, locations, vessel types, incident types, pollution types and pollution quantities