Why a 21-Mile Stretch of Water Is Shaking the Entire World Economy

The Strait of Hormuz, explained for everyone

By Yasir | ISN Global News | March 14, 2026

The US-Israel war on Iran has closed the Strait of Hormuz — the world's most important energy chokepoint. Here's exactly what that means for oil prices, your grocery bill, and Pakistan.

You have been hearing the words "Strait of Hormuz" every day for two weeks. Oil prices are above $100. Petrol is getting expensive. Economists are warning of recession. Politicians are panicking.

But what actually is the Strait of Hormuz? Why does a narrow strip of water between Iran and Oman have the power to shake every economy on earth — including Pakistan's? And how did we get here?

This article explains everything, simply and clearly.

First — What Is the Strait of Hormuz?

Picture a bottleneck. A narrow passage of water, just 21 miles wide at its tightest point, sitting between Iran on one side and Oman on the other. On a map it looks almost insignificant — a small gap between two countries at the bottom of the Persian Gulf.

But through that gap flows the lifeblood of the modern world.

The Strait of Hormuz's two unidirectional sea lanes carry around 20 million barrels of oil per day — roughly 20% of the entire world's seaborne oil trade — primarily from producers like Saudi Arabia, the UAE, Iraq, and Qatar. Every supertanker leaving Kuwait, every LNG cargo from Qatar, every barrel of Saudi crude heading to Asia passes through this single chokepoint.

There is no real alternative. Alternative pipeline routes exist — Saudi Arabia's East-West Pipeline and the UAE's Fujairah pipeline — but terminal infrastructure limits their throughput, and they could not offset a full Strait closure.

This is why, when the US and Israel launched their war on Iran on February 28, the Strait of Hormuz immediately became the most dangerous body of water on earth.

What Happened When the War Started?

Iran's response to the US-Israeli strikes was swift, calculated, and aimed directly at the global economy.

The IRGC issued warnings prohibiting vessel passage through the strait, leading to an effective halt in shipping traffic. Tanker traffic dropped first by approximately 70%, with over 150 ships anchoring outside the strait to avoid attack. Shortly after, traffic dropped to near zero.

A commander in Iran's Revolutionary Guard said the strait was "closed" and that any vessel attempting to pass through would be set "ablaze." Major shipping companies including Maersk, CMA CGM, and Hapag-Lloyd suspended all transits through the strait.

The message was clear: Iran could not match American and Israeli airpower in the skies. But it could strangle the world's oil supply from the ground — and it did.

How Bad Is the Damage to Global Oil Supply?

In one word: historic.

The IEA has declared this the largest supply disruption in the history of the global oil market. With crude and oil product flows through the Strait plunging from around 20 million barrels per day before the war to a trickle, Gulf countries have cut total oil production by at least 10 million barrels per day.

Global oil supply is projected to plunge by 8 million barrels per day in March alone. To put that in perspective — the entire oil output of Russia is around 9–10 million barrels per day. The war has effectively removed nearly one Russia's worth of oil from global markets in a matter of days.

Brent crude — the international oil benchmark — surged above $100 per barrel, with futures touching close to $120 at peak. Asian stock markets including Tokyo, Seoul, and Hong Kong opened sharply lower as traders weighed the prospect of weeks, or even months, of energy market turmoil.

The emergency response has been the largest in history: IEA member countries agreed to release an unprecedented 400 million barrels of oil from their emergency reserves to cushion the blow. It has not been enough to bring prices back down.

It Is Not Just Oil — Everything Is At Risk

Here is what most people miss: the Strait of Hormuz is not just an oil pipeline. It is a global supply chain artery.

Around 30% of Europe's jet fuel supply originates from or transits through the strait, while one-fifth of the world's entire LNG supply passes through the waterway.

Qatar had already stopped gas production on March 2 and declared Force Majeure on gas contracts on March 4. Qatar's Energy Minister warned that if the war continues, other Gulf energy producers may be forced to halt exports entirely — and that "this will bring down economies of the world."

Beyond energy, the disruption is cascading through supply chains most people never think about. About 85% of polyethylene exports from the Middle East flow through the Strait, affecting the price of packaging, automotive components, and consumer goods worldwide. Fertilizer shipments are also disrupted, threatening agricultural producers. The Asian garment industry, which relies on petrochemicals shipped through the Strait to produce synthetic fabrics, faces acute pressure.

In plain terms: if the Strait stays closed, the price of your groceries, your clothes, your electronics — everything — goes up.

Who Gets Hit the Hardest?

The war was started by the United States. But the countries paying the heaviest economic price are in Asia and the developing world.

The majority of crude oil shipped through the Strait of Hormuz goes to Asia — China, India, Japan, and South Korea account for nearly 70% of shipments.

Pakistan is among the most exposed countries on earth.

Qatar and the UAE account for 99% of Pakistan's LNG imports. With limited storage and procurement flexibility, analysts at Kpler warn that disruption would likely trigger fast power-sector demand destruction — meaning electricity shortages and load-shedding — rather than Pakistan being able to source alternative supplies at speed.

Pakistan was already struggling with an energy crisis before this war began. The Strait closure is not an abstract geopolitical event for ordinary Pakistanis — it is a direct threat to electricity supply, fuel prices, and the cost of everything from flour to medicine.

Economists at Goldman Sachs have modelled a scenario where oil averages $110 for two months — and find it pushes US recession probability to 25%. Oxford Economics modelled oil at $140 for two months and found it would push the eurozone, the UK, and Japan into economic contraction, and create an effective economic standstill in the United States. For developing economies like Pakistan, the thresholds are far lower.

Can the World Route Around the Problem?

The short answer is: not easily, and not quickly.

If Strait disruptions force vessel rerouting around Africa's Cape of Good Hope, the initial ocean impact takes 10–14 days to appear. But the real pressure hits within 2–5 weeks, as diverted containers arrive in clusters, terminal congestion rises, and shipping costs spiral.

The US is somewhat insulated due to its high domestic oil production — but oil trades in a global market, so the pain cannot be avoided even for America.

Washington is exploring using the US Navy to escort commercial tankers through the Strait, but the Pentagon has not yet begun such operations, citing the risks posed by Iranian attacks in the narrow waterway. The US Energy Secretary said such naval escort operations could begin by end of March.

Where Does This End?

That depends almost entirely on one question: how long does the war last?

The ultimate impact on oil and gas markets and the broader economy will depend not only on the intensity of military attacks, but crucially on the duration of disruptions to shipping through the Strait of Hormuz.

Iran's new Supreme Leader has explicitly committed to keeping the Strait closed as a pressure lever. Iran's president has offered peace conditions — reparations, recognition of rights, international guarantees — that the US has shown no sign of accepting. Meanwhile, Trump says the war will end "soon" while simultaneously deploying more Marines and warships.

The UN's trade body UNCTAD warns that many developing countries already face high debt burdens and limited fiscal space. Rising energy, transport, and food costs could strain public finances and increase pressure on household budgets, potentially heightening economic and social pressures — particularly in economies heavily dependent on imported energy, fertilizers, and staple foods.

Pakistan sits squarely in that category.

The Bottom Line

The Strait of Hormuz is 21 miles wide. The economic consequences of closing it are measured in trillions of dollars, in millions of barrels, in the price of bread in Lahore and petrol in Karachi.

This war was launched from Washington and Tel Aviv. But its economic shrapnel is landing everywhere else — hardest in the countries that had the least say in starting it, the least reserves to absorb the shock, and the least power to end it.

Understanding why that matters is the first step to demanding accountability from those who made it happen.

Yasir is a senior analyst and correspondent at ISN Global News. Follow ISN for daily coverage of the Iran war and its impact on Pakistan at isn.media