The Strait of Hormuz Crisis: How One Narrow Waterway Is Shaking the Entire Global Economy

Business

The US-Israeli war on Iran has triggered what the International Energy Agency is calling the largest oil supply disruption in history. With roughly 20% of the world’s oil normally passing through the Strait of Hormuz — now effectively shut — energy prices are surging, stock markets are falling, and economists are warning of a global recession if the crisis is not resolved within weeks.

At the centre of the world’s most consequential economic crisis in decades sits a stretch of water barely 100 miles long. The Strait of Hormuz — the narrow passage between Iran and Oman — has long been described as the jugular vein of the global energy system. Since the US and Israel launched military strikes on Iran on February 28, 2026, that vein has been effectively severed.

The consequences are now radiating across every corner of the global economy.

THE ENERGY SHOCK

The numbers are staggering. According to J.P. Morgan Global Research, oil prices surged past $100 per barrel for the first time since 2022 in early March, as commercial traffic through the Strait ground to a halt. Roughly 20 million barrels of crude oil and oil products passed through the waterway daily before the conflict — approximately one fifth of the entire world’s seaborne oil supply. That flow has now been severely disrupted.

Analysts at BCA Research estimate that the world has already lost between 4.5 and 5 million barrels per day of oil supply as a direct result of the war — around 5% of total global supply. More alarming still, that figure is expected to double by mid-April as emergency reserves from the US Strategic Petroleum Reserve run dry and temporary sanctions waivers on Russian and Iranian oil expire. There is, at that point, no substitute on the horizon.

Gas prices in the United States have already climbed sharply, surpassing $4 per gallon by the end of March and hitting $5 in California. Goldman Sachs analysts have warned that if the Strait remains closed, gasoline could reach $3.50 per gallon nationally — with inflation becoming what they describe as a permanent problem.

A SHOCK THE WORLD WAS NOT READY FOR

The conflict arrived at the worst possible moment. The global economy was already navigating elevated interest rates, persistent inflation, and the aftershocks of trade tariff wars. The US economy entered 2026 growing at just 0.7% in the final quarter of 2025 — a sharp deceleration from 4.4% the prior quarter.

Now the Iran war has added a further layer of pressure that economists describe as a structural shock, not merely an episodic one. The World Economic Forum warns that what began as a battlefield crisis has hardened into a geoeconomic one, with consequences for trade routes, investment decisions, food security, and political stability that could persist for years.

The International Monetary Fund’s managing director Kristalina Georgieva issued a blunt warning in March: if the conflict is prolonged, it poses a severe inflationary risk to the global economy. Euro zone GDP growth could slow to just 0.5% in the second half of 2026, economists project, while China’s growth — already modest — could fall below 3%.

WHO IS HIT HARDEST

Asia is bearing the sharpest pain. According to data cited by Al Jazeera, approximately 84% of the crude oil and 83% of the LNG that passed through the Strait of Hormuz in 2024 was bound for Asia. With that supply now disrupted, countries from Japan to India are scrambling for alternatives at sharply higher prices.

India is particularly exposed. With thin strategic reserves and a heavy dependence on Middle Eastern crude, higher energy prices are feeding directly into inflation, weakening the rupee, and threatening growth. Wheat prices have also risen, prompting warnings from analysts that less-wealthy, food and fuel-importing nations could face acute hardship if the conflict continues through the spring.

LNG markets have been no less turbulent. On March 2, QatarEnergy suspended production at its Ras Laffan facility after an Iranian drone strike, removing a significant share of global LNG supply from the market virtually overnight. Qatar supplies 20% of the world’s LNG. Prices have risen by nearly 60% since the war began, according to senior analysts at commodities research firm Kpler.

WHAT HAPPENS NEXT

The window for avoiding a deeper crisis is narrowing. Oil industry executives and analysts told CNBC that the Strait of Hormuz needs to be reopened by mid-April — or the economic fallout will escalate dramatically. Once strategic reserve releases and sanctions waivers expire, there will be little governments can do to prevent energy prices from rising further.

Morgan Stanley analysts note that the key risk is duration. A short conflict, historically, leaves limited long-term damage to equity markets. But sustained higher oil prices broaden into wider costs — squeezing corporate earnings, pushing central banks toward tighter policy at a moment of fragile growth, and eroding consumer purchasing power in the world’s largest economies.

For now, markets remain in a state of uneasy uncertainty. Stock markets have retreated globally. Bond markets have sold off. And at the centre of it all, a 100-mile stretch of water between Iran and Oman continues to determine the fate of the world economy — one tanker at a time.