An expanded Iranian exclusion zone near the Strait of Hormuz could disrupt global oil shipping and raise energy costs, as roughly one-third of seaborne oil passes through the waterway.
Most affected
Oil tanker operators and shippers — Face potential exclusion or attack risk in the disputed waters. Energy consumers globally — Could face supply disruptions and higher fuel costs if shipping is blocked.
Likely next
Whether Iran formally declares the expanded exclusion zone's boundaries and whether US or international shipping continues to operate within it.