1. Report 2013-B: Pipeline Performance in Alberta, 1990–2012;AER,2013
2. Performance of European Cross-country oil Pipelines: Statistical Summary of Reported Spillages in 2013 and Since 1971;CONCAWE,2015
3. 9th EGIG Report 1970–2013: Gas Pipeline Incidents;EGIG,2015
4. Pipeline Product Loss Incidents and Faults Report (1962–2013);UKOPA,2014