http://www.ecy.wa.gov/programs/swfa/industrial/oil_tesoro.html

http://en.wikipedia.org/wiki/Oil_refinery

http://www.magnegas.com/Magnegas-Refineries.html

http://www.texastriallawyer.com/industrial_accidents/index.htm

http://losangeles.citysearch.com/profile/32503642/los_angeles_ca/industrial_service_oil.html

http://www.resalinc.com/index.html

http://www.business.com/directory/chemicals/petrochemicals/solvents/

http://www.pall.com/chemical_products.asp?fi=C&pc=Systems+(Industrial)

http://www.fieldspecialtiesinc.com/index.html

http://ludb.clui.org/tag/TX/Petrochemical+Plant+;2F+Oil+Refinery/Industrial/

http://www.cormetech.com/refineries.htm

http://www.synergyoilgas.com/default.asp