<h2>A 33-Kilometre Bottle Neck That Controls the World's Energy</h2>
<p>If you were to design a single geographic point that maximised the leverage any one country could exert over the global economy you might arrive at something very much like the Strait of Hormuz. It is a narrow band of water lying between the southern coast of Iran to the north and the Sultanate of Oman to the south at the point where the Persian Gulf narrows before opening into the Gulf of Oman and the Arabian Sea beyond. At its narrowest navigable point the strait measures approximately 33 kilometres — roughly the distance a reasonably fit adult could walk in a day. And through this 33-kilometre gap flows approximately 20 to 21 million barrels of crude oil and refined petroleum products every single day under normal operational conditions. That daily volume represents roughly 20 percent of all petroleum traded internationally — one barrel in every five that fuels ships aircraft factories cars and homes anywhere in the world begins its journey to market by passing through this strip of water between Iran and Oman.</p>
<p>The physical shipping lanes within the strait are narrower than the total width. Vessels moving in and out follow designated traffic separation lanes that are each approximately 3.2 kilometres wide with a 3.2 kilometre separation zone between them — meaning the actual navigable corridor for commercial traffic is a remarkably thin channel whose management requires continuous coordination between maritime traffic authorities and a constant stream of very large vessels. Supertankers the longest of which can measure more than 330 metres — longer than three football pitches end to end — transit these lanes daily requiring careful navigation in a space that leaves relatively little room for error. The width of the strait and the narrowness of the shipping lanes mean that relatively small physical disruptions — mines placed in the shipping channel armed vessels interdicting commercial traffic or simply the credible threat of attack sufficient to drive up insurance premiums beyond what ship owners are willing to bear — can reduce or halt commercial traffic without requiring the physical presence of a naval force large enough to block the waterway entirely.</p>
<h2>Who Controls the Strait of Hormuz?</h2>
<p>The legal status of the Strait of Hormuz under international law is clearer than its operational status under geopolitical reality. Under the United Nations Convention on the Law of the Sea (UNCLOS) the strait qualifies as an international strait used for international navigation meaning that all vessels have the right of transit passage through it — a right that exists independently of the wishes of the coastal states bordering the waterway. Both Iran and Oman border the strait and both are parties to or observers of the relevant international maritime law frameworks. The right of transit passage means that commercial vessels warships and aircraft all have the legal right to pass through the strait without permission from Iran or Oman provided they do so in a continuous and expeditious manner.</p>
<p>The practical reality however is different from the legal framework. Iran has long asserted a broader interpretation of its rights over the strait claiming that it has the authority to regulate or restrict traffic in ways that go beyond what UNCLOS permits. Iran's Islamic Revolutionary Guard Corps Navy maintains a significant presence in and around the strait operating fast boats that have previously harassed commercial vessels and has demonstrated through repeated incidents the capacity to interdict or threaten commercial traffic in ways that can effectively close the waterway even without formally announcing a blockade. In the 2026 Iran war Iran combined formal announcements of closure with physical interdiction activity — drone attacks on commercial vessels mining of shipping lanes and IRGC Navy harassment — in a way that the United States Central Command was unable to entirely prevent without mounting a continuous and resource-intensive naval escort operation of its own. The gap between the legal principle of free transit and the operational reality of transit security in a conflict involving Iran is precisely the vulnerability that makes the Strait of Hormuz the world's most strategically dangerous chokepoint.</p>
<h2>What Flows Through Hormuz Every Day</h2>
<p>The 20 to 21 million barrels of oil that transit the Strait of Hormuz on an average day do not originate from a single country or serve a single destination. They represent the combined export flows of Saudi Arabia the world's largest oil exporter by volume Iraq Kuwait the United Arab Emirates Qatar and to a lesser extent Bahrain and Iran itself. Saudi Arabia exports approximately 7 to 8 million barrels per day through the strait making it by far the largest single contributor to Hormuz oil traffic. Iraq exports 3 to 4 million barrels daily through the same waterway. Kuwait and the UAE each export 2 to 3 million barrels daily. These exports flow primarily toward Asia — Japan South Korea China India and other fast-growing Asian economies collectively account for approximately 75 to 80 percent of Hormuz oil traffic by destination — with smaller but significant flows toward Europe and beyond.</p>
<p>Liquefied natural gas is the other major energy commodity transiting Hormuz with Qatar — the world's second largest LNG exporter — shipping substantial volumes through the strait to customers in Asia and Europe. Qatar's LNG exports represent a particularly significant dependency because LNG infrastructure is even more capital-intensive and fixed than oil infrastructure meaning that disrupting Qatari LNG flows has severe and long-lasting consequences for the gas-dependent economies of Europe that came to rely heavily on Qatari supply following the reduction of Russian gas flows. The combination of oil from Saudi Arabia Iraq Kuwait and the UAE and LNG from Qatar means that the Strait of Hormuz is not merely an oil chokepoint but a comprehensive energy chokepoint whose closure threatens both petroleum and gas supplies simultaneously — a combination that makes any extended closure the single largest potential supply shock the global energy system faces.</p>
<h2>What Happens When the Strait Closes</h2>
<p>The 2026 Iran war provided the world with a live demonstration of what a partial Hormuz closure does to global energy markets. Brent crude rose from approximately 75 dollars per barrel before the conflict began to above 110 dollars during the peak of the closure — an increase of approximately 47 percent driven almost entirely by supply disruption rather than by any change in underlying demand. For oil-importing economies that price increase translated directly into higher gasoline prices higher inflation higher interest rates and lower consumer purchasing power. The United States saw gasoline prices rise more than 50 percent in three months. Japan and South Korea — which are among the most Hormuz-dependent oil importers in the world — faced acute supply squeezes that required emergency releases from strategic petroleum reserves and the rapid diversion of import flows to more expensive alternative suppliers from Atlantic Basin and West African producers. The 1600 commercial ships that spent weeks stranded in or near the strait during the peak of the closure represented not just a logistical problem but an economic loss running into billions of dollars per day in disrupted trade stranded assets and foregone deliveries.</p>
<p>There are no fully adequate alternatives to the Strait of Hormuz for the volume of oil and gas that currently transits it. Saudi Arabia operates the East-West Pipeline which can carry approximately 5 million barrels per day from its eastern oil fields to the Red Sea port of Yanbu bypassing the strait — but this capacity covers only a portion of Saudi's own export flows and does nothing for Iraq Kuwait the UAE or Qatar. The UAE operates the Abu Dhabi Crude Oil Pipeline which can carry approximately 1.5 million barrels per day to the Gulf of Oman south of the strait again a useful but partial bypass. No alternative exists for the scale and diversity of the combined Hormuz flows. This is why the world has been negotiating so urgently since the June 15 memorandum of understanding — the economic logic of reopening the strait is so compelling for every party involved that the incentives for reaching a deal are as powerful as any in modern diplomatic history.</p