Stock photography, photos: Niger Delta Oil Derrick - Nigeria Stock photos of An oil well in the Niger Delta, Bayelsa State. The Niger Delta is the richest oil producing area in all of Africa. Nigeria, West Africa Photograph: © Robert Burch Click for a larger image and more information Keywords associated with this stock photo: africa, Nigeria, west africa, delta, nun river, niger delta, bayelsa state, oil, well, derrick, industrial, energy, production, gas, transportation