Brent crude hit $99.38 per barrel by 8 a.m. Eastern on September 3, a gain of $3.27 from the previous morning and roughly $31.50 higher than where it traded a year ago. The benchmark is now flirting with triple digits for the first time since a brief spike earlier in 2026, when prices touched around $120 before partially cooling off.
The proximate cause is familiar by now: the Strait of Hormuz, the 21-mile-wide channel through which roughly a fifth of the world’s oil supply passes, is once again looking like a bottleneck with real teeth.
What’s driving the spike
Renewed US airstrikes on Iranian missile and radar infrastructure have reignited hostilities that a June ceasefire was supposed to quiet.
Shipping data tells the story more clearly than any diplomatic statement. Tanker transits through Hormuz dropped to as few as six vessels on a recent day, compared to a 10-day rolling average of around 13. Cut the flow through the world’s most critical oil chokepoint roughly in half and prices respond accordingly.
The disruption isn’t confined to Iranian exports. Iraq, Kuwait, and the UAE have begun trimming their own output, not because OPEC told them to, but because storage facilities and logistics networks are buckling under the strain.
Year-over-year, Brent prices are up approximately 41% to 45%.
The inflation problem oil is creating
Analysts have already begun revising their Brent price forecasts upward, and several are flagging increased odds of Federal Reserve tightening.
Settlement prices on September 3 landed somewhat below the $99.38 intraday peak, with Brent closing in the $95 to $97 range.
Broader market ripple effects
US officials made statements on September 3 suggesting an interest in curtailing long-term hostilities, which may have contributed to the pullback from intraday highs. The market appears to be weighing actions more heavily than words, which explains why Brent settled well above pre-escalation levels even as officials talked de-escalation.
Traders should watch tanker transit data through Hormuz as the most reliable real-time indicator of actual supply disruption severity. If transit numbers stay depressed near six vessels per day rather than recovering toward the 13-vessel average, the path to $100 and beyond becomes considerably shorter.
