Because of its proximity to the Atlantic Ocean, the people of Onna are predominantly fishermen.
Oil and Gas Industry
Onna is located near large offshore oil and gas drilling operations. Both Exxon Mobil and Total S.A. have operations in the area. Their operations have caused some controversy. Local researchers found large amounts of pollution from oil spills in and around Onna.
- ^ Dr. E. A. Akpofure. "Oil Spillage in Nigeria's Niger Delta". Urhobo Historical Society. http://www.waado.org/Environment/PetrolPolution/OilSpills/Mobil_Spill.html. Retrieved 2008-04-11.
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