US-Iran war spikes Brent above $100, then eases
US-Iran war disrupts Hormuz shipping The US-Iran war nearly halted oil tanker traffic through the Strait of Hormuz, a key waterway for global oil. This supply fear pushed Brent above $100 in July and later above $108.
This war and its supply disruption were the main new force driving Brent's price in Q3.
Weak demand and rising supply cap gains Weak Chinese fuel demand, OPEC+ increasing production quotas, Saudi price cuts, and lower demand forecasts from IEA and OPEC all limited how high Brent could go despite the war.
These factors acted as a counterweight, preventing even larger price spikes.
Supply swings from workarounds and attacks In August, workarounds restored about half of Hormuz oil flows, easing prices. In September, pipeline attacks and a full Hormuz closure briefly halved Saudi output, pushing Brent above $108 before recovering exports and reserve releases brought it back below $100.
These back-and-forth supply changes caused big price swings during the quarter.
Lingering risks keep Brent above $100 Rejected ceasefire offers, a third US aircraft carrier in the region, and China halting fuel exports kept supply fears alive, holding Brent above $100 by quarter-end.
These unresolved risks supported Brent's elevated price at the end of the period.