Nigeria's petrol price just moved again. The refinery that was supposed to end this dependence still can't.

Dangote Refinery raised its wholesale petrol price 6.7% to ₦1,350 a litre on September 12, its fourth increase since August 21. Retail prices have followed, reaching roughly ₦1,400 a litre in Lagos and Abuja and as high as ₦1,500 in parts of the north. (News Central)

Dangote has actually tightened its grip on domestic crude this year. Reuters reported the refinery secured 16 million barrels of Nigerian crude for October, about 520,000 barrels a day, covering most of its 700,000-barrel daily need and nearly double what it was sourcing domestically a year ago. That's real progress on the supply side. But Brent crude has risen more than 70% since January, past $100 a barrel, as the Middle East conflict keeps disrupting global supply, and even a mostly Nigerian-sourced refinery still prices its output off that international benchmark. Domestic refining has changed the supply chain. It hasn't insulated Nigerian petrol prices from what crude costs on the world market.

For households, this lands in three places at once. Transport fares, generator costs, and, with a short lag, the price of anything that had to move or be made using either.

Nigeria refines its own fuel now. Nigeria still pays the world's price for it. Both are true.