Advertisement NNPC, in a statement on Friday, said the refineries are the Port-Harcourt Refining Company (PHRC), Warri Refining and Petrochemical Company (WRPC), and Kaduna Refining and Petrochemical Company (KRPC). “NNPC is seeking to engage reputable and credible operations & maintenance (O&M) companies to operate and maintain its three (3) refineries, Port Harcourt (PHRC), Warri (WRPC), and Kaduna (KRPC) to ensure reliability and sustainability to meet the nation’s fuel supply obligation,” the statement read. NNPC added that the scope of work of the O&M contract will include long term and short term production/operations planning; production and operations execution; monitoring, reporting and optimisation of operations; reliability and inspection; process and controls engineering; and others.