22/09/2019 · The exploration of coal in Nigeria started much earlier in 1916 at the Ogbete Mine in Enugu although it was first discovered in 1909. The Nigerian coal is regarded as one of the best coal in the world due to its low sulphur and ash content which makes it ecofriendly.
02/06/2020 · 6. Nigerian National Petroleum Corporation NNPC. NNPC was established on April 1, 1977, as a merger of Nigerian Petroleum Corporation and Nigerian Federal Ministry of Mines and steel and between1978 and 1989. They have constructed refineries in .