IMF: Closure of Strait of Hormuz raises prospect of energy crisis

The International Monetary Fund (IMF) has warned that closure of the Strait of Hormuz could spark a major energy shock, pushing energy prices and inflation higher and tightening financial conditions globally. IMF chief economist Pierre‑Olivier Gourinchas set out the institution’s assessment in the foreword to the April 2026 World Economic Outlook, noting the conflict’s abrupt negative impact on the global outlook.

The warning follows sustained disruptions to oil and gas infrastructure in the Gulf and a U.S. blockade of key shipping lanes, which have sharply reduced effective flows through the chokepoint. The IMF’s report records downward revisions to near‑term growth forecasts and higher inflation projections, and describes scenario analysis where continued supply dislocations would materially worsen macroeconomic outcomes. Statements accompanying the report highlighted the risk that prolonged disruptions could elevate inflation expectations and squeeze financial markets.

Markets have reacted with heightened volatility: crude benchmarks and prompt physical prices have at times traded at substantial premia to futures, while headline Brent and WTI levels have oscillated above or below the $100 per barrel mark depending on intraday news and ceasefire prospects. International Energy Agency commentary and market reports indicate extreme tightness in near‑term delivery markets and record‑high spreads for middle distillates, feeding through to higher retail fuel and shipping costs in affected regions.

In a broader economic and political context, the IMF’s assessment underscores how geopolitical shocks to energy supply can transmit rapidly into global price dynamics, trade balances and monetary policy dilemmas. Higher energy import bills threaten current account positions in many economies, while elevated inflation complicates central bank policymaking where the choice between fighting inflation and supporting growth becomes more fraught. The IMF notes that policy coordination and de‑escalation are important to limit spillovers.

Analysts point to the IMF’s scenario framing: a baseline assumes a relatively short disruption and moderate price impact, an adverse case assumes more persistent supply shocks, and a severe case—where infrastructure damage and extended closures continue into next year—could bring global growth close to recession and inflation significantly higher. Market participants will watch diplomatic developments, inventory releases, and production responses from major producers as key determinants of the path ahead.