"Major military punishment" that was Trump's warning on social media Thursday morning, addressed to both Iran and the Houthis, after one of the most disruptive nights for global oil shipping in years. Markets did not wait for the diplomats. Brent crude futures hit $100.06 a barrel, crossing that threshold for the first time since May 26, while West Texas Intermediate jumped nearly 5% to around $91.
The trigger was a sequence of events that compressed into roughly 24 hours. Houthi militants in Yemen claimed attacks on two Saudi oil tankers in the Red Sea, saying the ships had violated a maritime blockade the group announced earlier in the week. Saudi authorities have not confirmed damage, but several tankers already bound for India and China had changed course days earlier after the Houthis threatened to block Saudi-linked vessels from the Bab el-Mandeb Strait, the narrow chokepoint connecting the Red Sea to the Gulf of Aden. Then came the bigger shock: Iran declared the Strait of Hormuz "fully closed" to unauthorized tankers, warning that any vessel wanting to pass would need prior coordination with Iranian authorities. The U.S. military, meanwhile, completed its 12th consecutive night of strikes on Iran, and Iran's Islamic Revolutionary Guard Corps reported that one of three tankers caught fire near a mined shipping route south of the strait. Together, Hormuz and Bab el-Mandeb carry a substantial share of the world's seaborne crude. A sustained closure of both would force tankers to reroute around the southern tip of Africa, adding weeks and significant cost to every voyage.
The White House had accused Iran of "not being serious" about peace talks just a day before the closures, which made Thursday's escalation feel less like a surprise and more like a next step. The U.S. Energy Information Administration added an odd footnote to the supply picture: a surprise build of 2 million barrels in crude inventories for the week ending July 17, bringing total commercial stocks to 411.7 million barrels. On any other day that number would have pushed prices lower. It barely registered.
Energy stocks moved in the opposite direction from the rest of the market. ExxonMobil gained about 1.5% in premarket trading and Chevron climbed roughly 1.9%, while S&P 500 futures dropped more than 1% ahead of the opening bell. The split tells the story plainly: traders are pricing in a prolonged disruption, not a one-day spike.
This article is for informational purposes only and does not constitute financial or investment advice.
