Blockade prevented $25 billion in Iranian oil exports, CENTCOM commander says

Key Facts

U.S. Central Command commander Brad Cooper said in a statement dated October 16, 2026, that the U.S. naval blockade had prevented Iran from exporting $25 billion worth of oil, according to the Associated Press in a report published by the Times of Israel. The estimate coincided with a buildup of Iranian crude on tankers and disruptions to the movement of some cargoes inside the Strait of Hormuz. Vortexa estimated in a report carried by Reuters on October 13 that about 83 million barrels of Iranian oil were aboard tankers. Of that total, the company said 43 million barrels were stranded west of the Strait of Hormuz because of the blockade. In a more recent update dated October 21, United Against Nuclear Iran identified at least 52 tankers loaded with Iranian oil. The organization said the tankers were operating along the Iranian coast, where crude cargoes were accumulating amid export restrictions.

Reuters reported in September that Iran had become reliant on selling oil held in floating storage in Asian waters to supply China. That reliance came as Iran was unable to replace the volumes sold with new shipments, while crude accumulated inside the strait. In the report, published by Investing.com, the agency described Iran's supply position by saying Tehran "can only sell crude to China from floating storage in Asia, which it cannot replenish." On the demand side, Vortexa said in its October report carried by Reuters that Russian crude had filled the gap in China's oil requirements. The company said the availability of those supplies had reduced China's urgency to secure Iranian oil. The difficulty of getting new Iranian cargoes to Asian storage thus coincided with the Chinese buyer obtaining Russian crude to meet its needs, according to Vortexa's description of supply movements.

Across the region, Middle East oil flows averaged more than 24 million barrels per day in the week ended October 18, 2026, according to Kpler data cited by the Wall Street Journal. That average included oil flowing through the Strait of Hormuz as well as shipments transported via alternative routes. The pre-war comparison level was 23.3 million barrels per day, meaning regional flows exceeded that level despite disruptions to Iranian shipments caused by the blockade. In the United States, the Energy Information Administration reported a 3.1 million-barrel decline in commercial crude inventories in the week ended October 16. Total inventories stood at 412.5 million barrels after the weekly decline, according to the agency's official summary. The figures cover commercial crude oil inventories, excluding volumes held in the U.S. Strategic Petroleum Reserve.

In oil trading, Brent crude futures settled at $108.82 a barrel on October 21, 2026, according to Reuters. The settlement marked a gain of 3 cents, a slight increase of 0.03% for the session. On the political front, Investing.com cited Iranian state media reporting President Masoud Pezeshkian's position on the conditions for any negotiations with the United States. Pezeshkian told Pakistani army chief Asim Munir during the latter's visit to Tehran that "any negotiations" required Washington first to "lift pressure, threats and sanctions." The U.S. Energy Information Administration provided its outlook for prices in the period ahead in its October report. The agency forecast that Brent spot prices would average $105 a barrel in the fourth quarter of 2026.