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Market News/Article

News & analysis

NY —·Local —

Oil Jumps as Iran Ties Hormuz Reopening to Sanctions Relief

Brent's 4.2% climb to about $103 a barrel came as Washington denied an outright diesel export ban, leaving refiners to curb shipments voluntarily while rate markets priced a near-70% chance of an October hike.

By PREVICT Research·Thu 24 Sep 2026 · 15:30 UTC
Illustrative photograph: Industrial complex with steam rising from stacks
Photo by Josep M Bové (Jobove) - Reus on Unsplash

Key points

  • Brent rose 4.2% to about $103 a barrel and WTI gained 2.5% to $92.8 after Iran's president linked reopening the Strait of Hormuz to lifting sanctions and the US blockade.
  • The US administration denied an outright diesel export ban, saying it is working with refiners to limit exports voluntarily.
  • Strong US PMIs and hawkish Fed commentary pushed the 2-year yield up 14bp and the 10-year up 15bp, with markets pricing just under a 70% chance of an October hike and a year-end fed funds rate near 4.25%.

Brent crude rose 4.2% to around $103 a barrel and WTI gained 2.5% to $92.8 after Iran's President Pezeshkian said the Strait of Hormuz would stay closed as long as sanctions and the US blockade remain in place, according to Westpac. Dated Brent traded near $120.

The oil move had two drivers. Iran's condition on Hormuz supplied the supply-side trigger, while reports of a US diesel export ban added to the rally. The administration denied an outright ban and said it was working with refiners to voluntarily limit exports, leaving the actual constraint on distillate shipments short of a formal prohibition.

Rates reinforced the pressure. Strong US PMIs and hawkish Fed commentary lifted the 2-year yield 14 basis points and the 10-year 15 basis points. Markets priced just under a 70% chance of an October hike, a December hike in full, and a year-end fed funds rate around 4.25%.

The dollar strengthened, and the Australian dollar weakened ahead of labour data even as markets continued to price a high probability of further RBA tightening. Attention also turns to the Trump-Xi meeting, though expectations for a major breakthrough remain low.

Why it matters

The mechanism is a supply-side price shock meeting a hawkish rate path: an oil rally that lifts headline inflation pressure while front-end yields rise and the dollar firms. That combination is the difficult part for risk assets, since it tightens conditions through both energy costs and discount rates at once. The condition that would weaken this read is a durable reopening of Hormuz or a formal, binding export restriction being replaced by the voluntary arrangement now described, either of which would remove part of the crude premium. A further leg higher would require the standoff to persist alongside the rate market holding its October hike pricing.

Related markets

BRENTGLDGOLDSPYUSOWTIXLEXLIXLY

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