The 1986 Price Collapse: $30 → $5 in Six Years
In 1980, oil traded at approximately $30 per barrel. By early 1986, it had collapsed to less than $5 — an 83% decline. The cause was an oil glut: OPEC members overshot production quotas, non-OPEC producers increased supply, and demand stagnated. Nigeria, which had based its entire fiscal planning on oil revenue, faced catastrophe. The 1986 Structural Adjustment Program (SAP) was the IMF/World Bank response: devalue the naira by 66% (from N1.6 to N4.4 per dollar), remove import subsidies, slash public expenditure, and liberalize trade. The result was a deep recession, a 50% drop in real wages, and social unrest so severe that the military partially reversed SAP by 1988. The 'lost decade' had begun.
