Iran War Disrupts Hormuz Strait; Crude Flows Drop 30%, Brent Above $95, Global Supply Chains Strained

The Iran war has materialized as a genuine energy shock of historic proportions. The Strait of Hormuz, through which roughly one-third of the world's maritime oil trade normally flows, has seen throughput collapse to the lowest quarterly average since 1990. Saudi Arabia reported to OPEC that its own production fell to a 36-year low in April, a direct consequence of export disruptions and facilities damage. Brent crude now trades above $95 per barrel, and some North Sea crudes are even fetching premiums as supply tightens. This is not a minor geopolitical risk premium; it is a material supply disruption with knock-on effects across every energy-importing economy.

The supply chain fallout is acute. Firms are stockpiling goods and raw materials at the highest rates since the 2022 post-pandemic crisis, according to the GEP Global Supply Chain Volatility Index. Companies fear that sustained higher energy costs will cascade into transport, manufacturing, and input costs. Ukraine is targeting higher corn exports on the back of favorable weather, but fertilizer shortages due to the Iran conflict constrain yields. Taiwan's semiconductor export margins face compression. Japan's inflationThe rate at which prices rise across an economy.-fighting efforts are complicated by energy import bills rising sharply; the central bank may need to rethink its hawkish policy stance if yen weakness becomes entrenched.

Central banks are raising inflationThe rate at which prices rise across an economy. forecasts across the board. Fitch downgraded Bangladesh's outlook to negative, citing vulnerability to the Middle East energy shock. Turkey's central bank faces mounting pressure to raise interest-rate forecasts, complicating its already-difficult inflation mandate. Czech officials acknowledge that monetary policy remains restrictive even after inflation jumped. The Fed and ECB now face a dilemma: supply-driven inflation may not respond to rate hikes, yet tightening further risks deepening recession risk.

The narrative's weakness is that Hormuz flows may partially recover if de-escalation talks gain traction or if US naval presence deters further attacks. Tanker diversions around Africa (longer routes, higher costs) could be a temporary workaround. However, if the conflict broadens or key production facilities are damaged, the shock deepens. Energy importers are hedging supply risk, which props up crude futures but creates consumer cost drag; this is the classic stagflation setup.