Nigerian National Petroleum Corporation (NNPC)
Nigerian Gas Company Limited (NGC)
Nigerian Petroleum Development Company Limited (NPDC)
Pipeline and Products Marketing Company Limited (PPMC)
Nigeria Liquified Natural Gas (NLNG)
ELF Petroleum Nigeria Limited
CHEVRON Nigeria Limited
Nigeria AGIP Oil Company Limited (NAOC)
SHELL Petroleum Development Company (SPDC), East and West
TEXACO Overseas Petroleum Company of Nigeria (TOPCON)
Power Holding Company of Nigeria (PHCN)
Nigerian Ports Plc.
Nigerian Railway Corporation (NRC)
Indorama Eleme Petrochemicals
Warri Refining and Petrochemical Company Limited (WRPC)
Kaduna Refining and Petrochemical Company Limited (KRPC)
Port Harcourt Refining Company Limited (PHRC)