Iran planned to announce a maritime exclusion zone and preferred shipping corridor through the Strait of Hormuz for vessels lacking Iranian permission after missile attacks involving U.S. warships and the disabling of three Iranian oil tankers. Brent crude reached $99.25 a barrel on September 8, while West Texas Intermediate rose 2.6% to $93.91, as traffic through the waterway fell sharply and markets assessed the risk of broader supply disruption. Qatar, China and Oman pursued diplomacy to reopen the strait, while Houthi attacks in Saudi Arabia, fighting near the Bab al-Mandab Strait and renewed strikes in Lebanon added to regional tensions.