1. U.S. Chemical Safety and Hazard Investigation Board Interim Investigation Report Chevron Richmond Refinery Fire Chevron Richmond Refinery Richmond CA August 6 2012. (http://www.csb.gov/chevron-refinery-fire).
2. The Report of the BP U.S. Refineries Independent Safety Review Panel January2007. (http://www.bp.com/liveassets/bp_internet/globalbp/globalbp_uk_english/SP/STAGING/local_assets/assets/pdfs/Baker_panel_report.pdf).