Farmlands spanning several kilometres were also destroyed as the oil tanker emptied its 33,000 litres of gasoline in the accident that happened Bakatari in Ido Local Government Area of the ancient city.
The accident, which happened on Ibadan-Abeokuta Expressway, contaminated streams in the area.
The fuel also destroyed some fish ponds at Ayegbami area.
Owner of one of the fish ponds, Alhaji Taofeek Adeogun, said many ponds were covered by the oil that streamed into them.
He lamented that millions of naira was lost in the incident.
Sweetcrude gathered that as the truck with number plate XY 85 LSR emptied its contents, there was stampede as people in the area ran for fear of explosion.
The accident, sources said, happened when one of the tyres of the tanker suddenly burst, sending the vehicle swinging off the road
Policemen from Apata Police Station were on guard to prevent people from scooping the spilled oil.