Over the period of 2011 to 2018, state governments in Nigeria accrued a total revenue (Federal Allocation and Internal Revenue) of over US$125 billion. Lagos and Rivers states alone were responsible for 20%, and along with Akwa Ibom, Delta and Bayelsa, just over 40%. The total figure is equal to the estimated amount lost by the country by failure to pass the Petroleum Industry Bill over the same period.