THE TRANSMISSION BELT
Sub-Saharan Africa refines almost nothing it consumes. Nigeria has crude but ships it abroad and imports the refined product back; East Africa has neither. A Hormuz shock reaches a Nairobi pump within weeks because the chain is short and inelastic.
WHY HORMUZ REACHES NAIROBI
East Africa buys most of its diesel and jet fuel from Indian and Gulf refineries, which run on Persian Gulf crude. When the Strait closes, those refineries throttle and reroute output to premium buyers in Europe and Asia first. African importers are at the back of the queue.
THE FERTILIZER LINK
Modern nitrogen fertilizer is made from natural gas via the Haber-Bosch process — roughly 3-5% of global gas demand goes into urea and ammonia production. When energy prices spike, fertilizer prices spike on a one-month lag. Malawi's planting calendar does not wait.
THE FISCAL BUFFER
Wealthy oil importers cushion shocks with fuel subsidies or strategic reserves. Kenya's stabilization fund was drained by the 2022 shock; Malawi never had one. The same global price reaches every country, but the political damage is a function of how much the state can absorb before passing it to the pump.
THE 1973 PRECEDENT
The OPEC embargo quadrupled oil prices in months and triggered the African debt cycle that defined the 1980s. Countries borrowed in dollars to keep buying fuel, then watched the dollar surge under Volcker. Half the continent ended up in IMF structural adjustment by 1985. Every Hormuz crisis is read against that memory.