The February blockade of the Strait of Hormuz left a lasting impression on Washington, and the response now taking shape is not a short-term fix but a structural one. Tehran’s decision to shut the chokepoint at the outset of the joint U.S./Israeli operation sent oil prices spiking more than 70 percent almost overnight, a shock severe enough that the prospect of the blockade dragging into the November midterms became a central factor pushing Trump toward a ceasefire. Having lived through that scenario once, the U.S. and its allies are now working to make sure Iran’s most potent card loses most of its value.

The Strait of Hormuz is irreplaceable for Iran. It is increasingly optional for everyone else. Two decades of Gulf state infrastructure investment have built a parallel export system that bypasses the corridor entirely, and the trend is accelerating. The strategic implication is that Iran’s chokepoint leverage is depreciating in real time.

Saudi Arabia’s East-West pipeline, the Petroline, runs from Abqaiq to Yanbu on the Red Sea. Capacity has been expanded incrementally and now sits near five million barrels per day. In a Hormuz disruption scenario, the Saudis can route the bulk of their crude to a Red Sea terminal that exits via Bab el-Mandeb, a strait the Houthis can harass but the kingdom can defend more easily than a Gulf corridor ringed by Iranian territory. Yanbu is not a perfect substitute. It is a serviceable one.

Every serious analysis of Hormuz closure scenarios eventually arrives at the same question: how much oil can get out without using the strait? The answer, consistently, is not enough — and understanding why requires examining the bypass infrastructure that exists, the infrastructure that has been proposed, and the fundamental mismatch between pipeline capacity and the volumes the strait normally moves.

The numbers establish the problem. On a normal day, somewhere between 17 and 21 million barrels of crude oil and petroleum products transit Hormuz. The combined nameplate capacity of all existing bypass pipelines is a fraction of that figure, and nameplate capacity is not operational capacity. The infrastructure must be maintained, staffed, protected, and in some cases reversed from its normal flow direction before it becomes useful in a closure scenario. The gap between what the strait moves and what the alternatives can handle does not close quickly.