Home to some of the most promising petroleum reserves in West Africa, the Niger Delta Basin plays host to a petroleum system known as the Agbada Formation. A number of directional factors form an oil-rich belt, which starts in the southeast offshore region and extends to the northwest offshore region. Due to geologic factors and distribution of the oceanic crust, this oil-rich belt includes sediments with the highest maturity per unit depth in the entire region.
In addition to this oil-rich belt, the Niger Delta Basin features several other areas with a high gas to oil ratio (GOR). Because many reservoirs in these areas are overpressured(under extreme pressure), exploration companies typically derive the majority of production from gas expansion.