Nigeria National Petroleum Corporation Plc | 1,460 followers on LinkedIn. The Nigeria National Petroleum Corporation Plc (NNPC ) was established on 1 April 1977 as a merger of the Nigerian National Oil Corporation and the Federal Ministry of Mines and Steel.Products‎: ‎Crude Oil‎, Gas, petroleum products, Headquarters‎: ‎Abuja, FCT‎, Nigeria Industry‎: ‎Oil and gas