Nigeria's Dangote Refinery represents an extraordinary industrial achievement and a textbook case of how import substitution can fail consumers when market structure goes unconsidered. The 700,000 barrel-per-day facility — built for roughly $20bn, now the subject of Africa's largest-ever IPO — has cut petrol imports from 400,000bpd to about 83,000bpd. By any engineering or trade-balance metric, that is transformational. By the metric that matters to 220 million Nigerians — what fuel costs at the pump — the revolution has not arrived. Petrol prices have surged from roughly 185 naira per litre to over 1,000 naira, a fivefold increase driven by the simultaneous removal of the fuel subsidy and the shift to market-based pricing. The subsidy's elimination was long overdue — it consumed billions, disproportionately benefited the wealthy, and drained foreign reserves. But its removal coincided with the rise of a single dominant refiner, meaning Nigerian consumers walked from a subsidised import dependency straight into an uncompetitive domestic market with no price anchor. The structural problem is simple: Dangote buys crude at international benchmark prices, often in dollars when domestic supply falls short, and sells refined product into a market where it faces almost no competition. State-owned refineries in Port Harcourt, Warri, and Kaduna have absorbed an estimated $18-25bn in rehabilitation spending over two decades and remain effectively dormant. There is no credible second producer to discipline pricing. The "crude-for-naira" mechanism was supposed to shield domestic refiners from exchange-rate volatility, but the refinery has still been forced into dollar-denominated purchases on the international market when Nigerian producers cannot deliver enough feedstock. Aliko Dangote's framing of the IPO as the "People's IPO" deserves scrutiny. An IPO is a liquidity event for existing shareholders and a capital-raising mechanism — it does not redistribute value to fuel consumers. The prosperity Dangote describes sharing flows to investors who can afford to buy shares on the Nigerian Stock Exchange, not to the households spending a growing share of income on petrol, diesel, and generator fuel. The rhetorical packaging is the opposite of the economic mechanism. The downstream effects on ordinary Nigerians are severe and compounding. Higher fuel prices feed directly into transport costs, food prices, and the cost of running the backup generators that substitute for Nigeria's inadequate electricity grid. This is not a single price shock but a structural repricing of daily life, and it has already triggered protests and trade union action. The inflation channel runs fuel → transport → food → everything, with no circuit breaker. The policy menu is visible but politically difficult: accelerate rehabilitation of state refineries to create actual competition, provide facilities for small and medium-scale refiners, mandate pricing transparency, enforce existing antimonopoly provisions, and redirect former subsidy spending into electricity infrastructure and public transport. The compressed natural gas programme could relieve pressure but has not yet reached meaningful scale. Each of these interventions requires the government to act against the interests of its most powerful industrial actor — the same actor staging Africa's largest IPO. Nigeria's refining transformation is real, and the trade-balance improvement is significant. But the country has executed a structural swap: dependence on foreign refiners for dependence on one domestic refiner. Without competition, transparency, and regulatory enforcement, the surplus from eliminating import costs flows upward to the refinery's balance sheet, not outward to Nigerian households. The IPO makes this extraction permanent and liquid.