Day 166. The Treasury secretary set a horizon for the strait. “What we are going to see over the course of the next two years,” Scott Bessent said Friday, “is the strait is going to become irrelevant.” Planned pipelines will carry Gulf oil overland to ports beyond Iran’s coastline. Grant him the crude. Oil was never the strait’s only cargo.

At Ras Laffan on Qatar’s Persian Gulf coast, the world’s largest LNG export complex ordinarily supplies roughly a fifth of global LNG. QatarEnergy’s force-majeure notices now reach September for some customers. The Persian Gulf accounts for a third of the world’s urea exports. Urea more than doubled from about $400 a ton to above $850 in April, then fell to $453 by June. Those swings reach American farms in the fertilizer spread on cornfields and the exhaust-fluid tanks of modern diesel trucks.

Qatar supplies a third of the world’s helium, extracted at Ras Laffan from natural gas processed alongside LNG. Spot prices doubled after the shutdown. Chip fabs use it to cool wafers, MRI machines to keep magnets cold, and some high-capacity hard drives are sealed with it. India makes urea with imported LNG, so the strait enters the fertilizer chain twice. None of it fits in a crude pipeline.

By late April, U.S. natural gas had fallen nine percent from pre-closure levels; Europe’s benchmark was up 35%, Asia’s 51%. From a Treasury window, where abundant domestic gas sits behind finite export capacity, the strait can look irrelevant. Europe and Asia buy the scarcity. The map decides who pays first. It doesn’t decide what matters.

On Day 150, I wrote that war teaches Americans geography, one chokepoint at a time. The syllabus has moved on to chemistry. You can build a pipeline around a strait. You can’t build one around the periodic table.