The Strait of Hormuz—just 55 kilometres wide—has once again become the epicenter of global anxiety. This narrow sliver of water, separating Iran from Oman, channels roughly 20–30% of the world’s daily oil shipments. Any disruption here sends immediate shockwaves through markets, economies, and households around the globe.
The latest crisis began on 27 February 2026, when the United States and Israel launched strikes on Iran. Tehran retaliated with missile attacks on U.S. bases as far afield as Qatar and Oman, and closed the Strait of Hormuz, even threatening to set ships ablaze. Shipping companies, wary of confrontation, have already rerouted vessels, and tanker traffic in the Persian Gulf has dropped by 70%.
Why does this matter so much? Around 13 million barrels of oil per day flow through Hormuz, carrying the lifeblood of major producers: Saudi Arabia, Iraq, the UAE, and Iran. Alternative pipelines—from Saudi Arabia’s East-West line to the UAE’s Habshan-Fujairah route—can only handle a fraction of this volume. Even a short-lived closure has immediate consequences: February 2025 saw crude spike 6% after just a partial shutdown. A full, prolonged blockade could dwarf historical oil crises, pushing energy costs sky-high, sparking inflation, and threatening global recession.
Historically, oil disruptions at Hormuz have been devastating. The 1973 OPEC embargo quadrupled crude prices in two months, triggering recession and stock market collapses. The 1979 Iranian Revolution cut global oil output by just seven percent, yet crude prices doubled, creating shortages and economic instability worldwide. Today, Iran produces less globally, but Hormuz remains irreplaceable: Ras Tanura, Saudi Arabia’s key Persian Gulf port, exports over 5 million barrels per day, and a disruption here cannot be offset quickly.
Already, Brent crude has surged to US$79 per barrel and West Texas Intermediate to US$71, with prices at the pump climbing in North America and Europe. For countries like Canada, a net oil exporter, global price spikes still translate into higher fuel and goods costs, even as domestic producers benefit from rising revenues. The economic ripple is immediate and unavoidable.
Military and logistical realities make a Hormuz closure even more dangerous. Clearing the strait under threat could take weeks or months, involving naval patrols, drones, missiles, and submarines. Iran’s alternative pipelines are limited, diverting only a fraction of the usual flow, leaving global markets exposed. Even temporary disruptions would ripple across energy, transport, manufacturing, and inflation worldwide.
This crisis also presents opportunities for strategic energy players. Canada and other nations could leverage existing infrastructure to supply Asian markets, historically dependent on Gulf shipments. But speed is critical: the vacuum left by Hormuz will not remain unfilled, and competing producers will act swiftly.
The lesson is clear: the Strait of Hormuz is not just a narrow waterway—it is the pulse of the global energy system. A single blockade has the power to drive oil prices higher, disrupt economies, and reshape geopolitical alignments. In a hyper-connected world, a crisis here is a crisis everywhere.
The coming weeks will determine whether this remains a short-term shock or the opening chapter of a broader Middle Eastern conflagration. But one truth is already undeniable: when Hormuz sneezes, the world catches a cold.
