Brent Near $100 as Iran Ties Hormuz Reopening to Blockade End

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Brent crude holds near $100 as Tehran demands the US naval blockade end before the Strait of Hormuz reopens, leaving the crude oil price exposed to every diplomatic signal.

Lead

The standoff between the United States and Iran over the Strait of Hormuz is keeping oil volatile, with Brent crude trading between $103 and $105 a barrel in the week to Oct. 11 and West Texas Intermediate near $92. Tehran maintains that the US naval blockade of Iranian ports must be lifted before it restores normal navigation through the waterway, which carried about one-fifth of global oil supply before the war began in late February. Washington has so far declined to meet that condition on Iran's terms.

What Is Iran Demanding to Reopen the Strait of Hormuz?

Iran is demanding an end to the US naval blockade, the release of frozen assets and relief from oil-export restrictions in return for reopening the strait. Foreign Minister Abbas Araghchi set out a seven-day plan at the United Nations General Assembly on Sept. 25. Under it, Washington would take agreed steps in the first four or five days, normal navigation would resume on day six, and talks on a broader settlement, including the nuclear programme, would start on day seven.

President Donald Trump rejected the proposal on Sept. 26, calling it unacceptable. Brent rose more than 3% on the following Monday to nearly $108. Since then the tone has softened. Trump has described "productive discussions" with Tehran, with Qatar mediating, and said the US would not attack Iran before the Nov. 3 midterm elections. The blockade, reinstated in July after attacks on commercial vessels, remains in force, and Washington has added sanctions on Iranian oil-shipping networks.

Why Is the Crude Oil Price Staying Near $100?

The crude oil price stays elevated because physical supply through the Gulf remains impaired, and the diplomatic path to restoring it is unresolved. Brent closed at $83.30 on July 12 after jumping 9.6% on the blockade's reinstatement, its largest daily gain since 2020. It has since climbed about $20.

Shipping data show why. Transits through Hormuz totalled 132 in the week of Sept. 21-27, against a pre-war norm of roughly 130 crossings a day. Tanker freight rates for Persian Gulf voyages have hit record highs, and maritime agencies logged attacks on 11 vessels in a single week.

Other pressures compound the strain:

• A Gulf of Mexico hurricane shut in about 1.3 million barrels a day of US output.
• The US Strategic Petroleum Reserve is near record lows, limiting Washington's capacity to cushion a new shock.
• Higher prices and freight costs have led some forecasters to trim fourth-quarter Chinese import estimates by about 400,000 barrels a day.

How Are Forecasters Reading the Disruption?

Forecasters have raised price expectations but still assume some normalisation. A Reuters poll of 30 analysts on Sept. 30 lifted the 2026 Brent average forecast to $89.05 from $85.08 in August, with most respondents not expecting a supply surplus before 2027. Goldman Sachs (GS) estimates Gulf exports, including shipments with transponders switched off, reached 23.3 million barrels a day in the latest week, near 2025 averages. HSBC (HSBC) and DBS Bank no longer expect full restoration of traffic soon, and HSBC describes the strait as "structurally impaired."

Geopolitical Dimension

The dispute is a sequencing problem. Iran wants the economic pressure lifted first. Washington wants the strait open and nuclear talks under way before it concedes. Each side's leverage is the other's cost: Iran's closure raises energy prices for US consumers ahead of the midterms, while the blockade chokes Iranian export revenue.

Supreme Leader Mojtaba Khamenei has pledged to keep the strait effectively closed, which limits Tehran's room to reopen it without a visible concession. For Gulf producers, the risk is lasting. Storage limits earlier this year forced output cuts of about 10 million barrels a day, and exporters outside the waterway cannot easily replace lost volumes.

What Comes Next for Oil Prices?

Oil prices will track whether the two sides agree on a phased exchange of blockade relief for navigation. A deal along those lines would remove a large part of the risk premium. Failure, or a renewed run of tanker attacks, would put the late-September high near $108 back in play.

The Nov. 3 midterms set the near-term political clock. Trump's pledge to refrain from strikes lowers the odds of military escalation before then, but it does not reopen the strait. Trading Economics projects Brent at about $108.60 by the end of the fourth quarter.

Outlook

Brent is pinned near $100 by a closed bargaining loop: Tehran wants the blockade lifted first, and Washington wants the strait reopened and talks resumed. Qatar-mediated talks are active, and strike risk has eased until the midterms. Until a sequenced agreement emerges, shipping data, tanker attacks and statements from Tehran and Washington will keep driving oil in both directions.