A prolonged blockade of the Strait of Hormuz would remove up to 16 million barrels of oil per day. This scale is so massive that government strategic reserves are inadequate to fill the gap. The only mechanism to rebalance the market would be catastrophic demand destruction.
Focusing on crude's rise to $100/barrel misses the real story. Prices for refined products consumed by industries and travelers, such as diesel and jet fuel, have nearly tripled. This massive divergence reveals that the true economic pain is concentrated downstream from the oil well.
The critical threat to aluminum production isn't shipping finished goods, but the reliance on imported alumina. Regional smelters hold only 20-30 days of raw material inventory, meaning a sustained shipping disruption will force widespread production shutdowns within weeks, severely tightening the market.
The physical impact of a supply disruption isn't immediate. It takes about two weeks for tankers from the Middle East to reach Asia and over three for Europe. This lag means consumers and industries only start feeling the actual shortage weeks after the event, despite immediate price reactions.
Even a short-term crisis can create a prolonged aluminum shortage. It takes only a month to shut down a smelter, but restarting that same facility can take six months. This operational asymmetry means that supply is destroyed far more quickly than it can be restored, locking in market tightness.