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Bidco Oil Refinery, Calref, Caltex Refinery, Congalaise de Raffinage, Engen Refinery, Kaduna Petroleum Refining Company (KPRC), Kaduna Refinery, Natref, Port Harcourt Petroleum Refining Company (PHRC), Port Harcourt Refinery, Refinery of Alger, Refinery of Arzew, Refinery of Hassi Messaoud, Refinery of Skikda, Sapref, Sasol I, Sasol II, Sasol III, Warri Refinery