![Click to see original Image in a new window](https://i2.wp.com/media.premiumtimesng.com/wp-content/files/2022/02/Adulterated-fuel.jpg) Despite importing refined petroleum products due to the failure of its moribund refineries, which have gulped over N4.15trillion in maintenance since 2015, oil-rich Nigeria has the eight cheapest petrol in the world, costing about $0.40 (N166) per litre.
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