Nigerian Ports Authority in Cross River State, Calabar is the home of the Eastern Naval Command of the Nigerian Navy. Port facilities are located 55 nautical miles up the Calabar River. Delta Port, Rivers Port and Onne Port are located in the petroleum and natural gas producing Niger River Delta region of Nigeria. Delta Port in Delta State includes the ports of Warri, Burutu, Sapele and petroleum terminals at Escravos and Forcados. The Rivers Port Complex in coastal Rivers State comprises Port of Port Harcourt, Okrika Refined Petroleum Oil Jetty, Haastrup/Eagle Bulk Cement Jetty, Kidney Island Jetty, Ibeto Jetty, Macobar Jetty and Bitumen
Brass River at Yenagoa and flows south to discharge into the Gulf of Guinea. The tidal flats of the river have a reticulate drainage pattern, with higher elevation at the edges of the flats than at the center. Discharge varies depending on the season and state of the tide: An 1893 navigation guide says of the river, The mouth of the river is protected by a sand bar, which in 1893 could not be crossed by vessels with more than draft. Akassa creek, inland from the mouth of the river, provided a route from the Brass river to the Nun river for