NIGERIAN NATIONAL PETROLEUM CORPORATION (NNPC)
Oil Conglomerate (Petroleum Exploration, Development & Production, Petroleum Engineering Data Processing, Petroleum Refining, Petrochemical Production, Marketing of Crude Oil, Petroleum Products and Petrochemicals, Gas ...
EUNISELL LTD.
Chemical and Specialty Fluid Management Services for the Oil & Gas Industry
DK GLOBAL ENERGY RESOURCES LIMITED
An indigenous Nigerian company whose activities include procurement of crude oil, refined products, petrochemicals, natural and liquid gas for its major worldwide clients, including oil exploration.