U.S.–Iran Conflict Scenarios: Supply Chain Disruption Risk

–Iran tensions could manifest in two distinct supply chain disruption profiles: a short-term acute conflict with immediate but bounded shocks, and a prolonged standoff causing structural trade flow changes. The Strait of Hormuz, through which roughly 20% of global maritime oil passes, emerges as the critical chokepoint; even brief closures would spike energy costs and force massive rerouting of Asian-bound petrochemical shipments. Supply chain professionals face a dual planning challenge: short-term conflict scenarios demand inventory buffers and carrier diversification, while prolonged scenarios require fundamental reassessment of sourcing geography and modal selection.

The implications extend beyond energy. Electronics, automotive, and chemical manufacturers relying on just-in-time supply from the Gulf region would face weeks of lead-time extension and cost inflation if routing shifts from shortest-path ocean freight to longer circumnavigation routes or air premium services. Port congestion at non-Iran alternatives (UAE, Oman, India) would amplify delays.

Companies with heavy Iranian or Gulf-dependent supply chains face the highest risk; those with geographic diversification and buffer inventory are better positioned. Logistics strategists should treat this as a stress-test trigger: model inventory policies under prolonged transit delays, establish alternative sourcing contracts, and pre-negotiate carrier capacity for rerouting scenarios. Scenario planning tools that simulate Strait closure, route extension, and modal cost increases are essential for quantifying exposure and validating mitigation strategies.