Why Oil Hit $117: What the Iran Strike Threat Means for Fuel Prices

WarBrief Live | October 24, 2026 | Markets and Energy

Brent crude, the international oil benchmark, closed at $116.72 a barrel on October 23, 2026, its highest settlement since April, after rising as high as $117.45 during the day. The jump was driven less by oil that has already stopped flowing than by fear about oil that might stop flowing next: renewed United States strikes on Iran, retaliation against Gulf energy infrastructure, and another week of attacks and claims around the Strait of Hormuz. This article explains what actually moved the price, what remains unverified, and what it means for fuel prices, inflation and household budgets in the United States, the United Kingdom and the European Union.

This is an educational explainer about energy markets. It is not financial advice, and it does not forecast a specific pump price or recommend buying or selling any security or commodity.

Why did oil prices jump to $117 on October 23, 2026?

The short answer is that traders repriced the risk of a wider war. On October 23, President Trump told a rally in Florida that the United States “may do another little Epic Fury”, referring to the US military campaign against Iran that began on February 28, 2026. The remark followed an interview in which Tom Barrack, the US ambassador to Turkey and Washington’s point man on Syria, said of a possible strike this weekend: “Absolutely.” Markets heard two things at once: a possible near-term strike, and a possible intensification after the US midterm elections on November 3, when political constraints on escalation may loosen.

Analysts quoted in coverage of the rally tied the move directly to those reports. Richard Hunter, an analyst at Interactive Investor, said widespread reports that the United States was considering renewed military strikes on Iran after the midterm elections, rather than pursuing a diplomatic route, were enough for the price to rise. Susannah Streeter, chief investment strategist at the broker Wealth Club, as reported in Guardian coverage, said fears were rising that American and Israeli forces could be ordered to strike Iran’s energy infrastructure after the November 3 elections. RBC Capital Markets strategist Helima Croft, also quoted in coverage, argued that the direction of travel pointed to near-term military escalation in the Middle East.

That interpretation is consistent with the market data. Brent had traded at about $72 a barrel in February, before the Iran war began, and reached about $126 by the end of April, according to Guardian reporting summarised in syndicated coverage. It then fell back sharply in July. The October 23 settlement therefore does not set a new wartime record, but it does mark a return to the upper part of the wartime range, and the highest settlement since April 29 or 30, depending on the settlement series cited.

What happened in the Gulf in the week before the price spike?

Three separate strands converged in the same week, and it is important not to merge them into a single confirmed event.

First, Houthi attacks on Saudi Arabia intensified. A drone attack killed two workers at the Shaybah oil field, and Saudi Aramco cleared its headquarters in Dhahran on October 23, according to a market newsletter summarising the week. The United States then ordered the departure of non-emergency personnel and family members from Saudi Arabia only, a scope the State Department later clarified after wider reports suggested departures across several Gulf embassies. On October 24, the Saudi-led coalition said it had intercepted a ballistic missile launched towards Riyadh by the Houthis, with two explosions heard in the capital early on Saturday, and a drone intercepted in the Eastern Province, according to Agence France-Presse reporting. That October 24 interception is a new development after the October 23 settlement, and it underlines why traders are not treating the risk as past.

Second, claims about tankers in the Strait of Hormuz multiplied, but confirmation did not. Iranian state television reported on October 23 that seven oil tankers had either been struck or hit naval mines. Earlier in the week, Iran’s Islamic Revolutionary Guard Corps had claimed to have hit four commercial ships in the strait. President Trump called the seven-tanker claims “fake hits”, and no independent monitor had confirmed them in the coverage reviewed for this article. The discrepancy between four and seven, and the absence of named vessels, is itself the story: markets priced the possibility of a shipping disruption, not a verified one.

Third, the military build-up continued in public view. Morningstar’s week-in-oil summary reported that the United States has a third aircraft carrier strike group and an additional Marine expeditionary unit en route to the Middle East, while some troops have been moved off bases in the region. Reuters commentary on October 24 noted that oil flows through Hormuz had fallen from a peak of about 17 million barrels per day in early October to about 11 million barrels per day in recent days, according to Kpler data, even as producers and shippers continued to sail through the waterway. In other words, the system adapted, but at higher cost and higher risk.

By the numbers: what is confirmed and what is only reported?

Caveat: figures labelled CONFIRMED are confirmed by at least two independent settlement or market reports, or by a reputable outlet citing settlement data. Figures labelled REPORTED ONLY rest on a single claimant or an unverified claim, and should not be treated as established fact.

What does a $117 oil price mean for US, UK and EU readers?

For most readers, the transmission chain is crude to wholesale fuel to the pump, then to food, freight and inflation, and it works with a lag. Higher crude does not raise the price at every forecourt on the same day. Wholesale prices, refinery margins, currency movements and retailer pricing all sit between the Brent settlement and the pump, and retail prices typically take several days to reflect a market move, according to UK fuel-price coverage of the October rise.

In the United Kingdom, the starting point was already painful. The RAC reported diesel at 199.18p a litre on September 28, 2026, and petrol at 174.13p. Reuters reported on October 21 that average British diesel pump prices had hit 2.00 pounds a litre for the first time, while US prices had hit a record $6.53 a gallon in September. A sustained Brent price above $110 therefore does not need a new supply shock to keep pressure on UK pump prices; it only needs to stay there. Diesel matters more than petrol for the wider economy, because hauliers, farmers, construction firms and delivery businesses run on it, and sustained diesel increases feed through into food, building materials and everyday goods.

In the United States, the political channel matters as much as the pump channel. Reuters reported that rising fuel prices were becoming a significant political challenge for Republicans before the November midterm elections, and Morningstar noted that traders broadly expected the Federal Reserve to leave interest rates unchanged at its meeting in the week of October 26, but saw a nearly 80 percent probability of a hike in December, according to the FedWatch tool. Higher energy costs push inflation expectations higher, which can keep borrowing costs elevated even if the Fed holds rates in the short term. Reuters also reported on October 21 that high oil prices were already permeating daily life, from groceries to home loans, as transport and heating costs added to pressure on food, clothing and packaging prices.

In the European Union, the same logic applies through diesel and heating costs, and through the risk premium on shipping and insurance. The G7 agreed on October 3 to release 100 million barrels of diesel and crude from emergency reserves and pledged to refrain from energy export restrictions, according to Reuters commentary, after President Trump had threatened to ban US diesel exports. That release was designed to cap prices, not to remove the war premium, and the October 23 spike shows its limits: emergency stocks can cushion a shortage, but they cannot remove the fear of a wider war.

Why did diplomacy not calm the market on October 23?

Foreign ministers from eight countries, including Saudi Arabia, Egypt, Pakistan, Turkey, France, Germany, Britain and Italy, met in Istanbul on October 23 and warned that a new military confrontation would not resolve the conflict and would instead spread the fighting and push oil prices higher again, according to Seoul Economic Daily. Turkish Foreign Minister Hakan Fidan said military intervention in Iran was not a solution, and German Foreign Minister Johann Wadephul said Germany, France and the UK were ready to negotiate with Iran to rule out its acquisition of nuclear weapons, according to EA WorldView’s summary of the meeting.

The market reaction suggests traders discounted that diplomacy for now, for a simple reason: the ministers could warn about consequences, but they could not remove the two triggers traders were watching, namely a possible US strike and a possible Iranian or Houthi retaliation against energy infrastructure. Until one of those triggers is credibly removed, the risk premium stays in the price.

What should readers watch next?

First, watch whether the October 24 Riyadh interception is followed by further Houthi strikes on Saudi energy or transport infrastructure, and whether any tanker claim in Hormuz is independently confirmed with a named vessel. A confirmed vessel incident would be a different market event from a claimed one.

Second, watch the OPEC+ meeting on November 1, 2026, the first monthly meeting of the group since the Shaybah oilfield drone attack, at which December output targets are on the table. That meeting is covered in a separate WarBrief preview, and it will test whether producers can reassure markets without a political settlement.

Third, watch the US midterm elections on November 3 and the Federal Reserve’s December decision. Morningstar’s summary framed the week ahead as adding the Fed meeting and the midterms, both of which push Washington towards wanting oil lower. If the post-election period brings either a negotiated pause or a new strike campaign, the price response is likely to be sharp in either direction, which is why this article does not offer a single price forecast.

Readers who want the shipping context should read our analysis of the Hormuz tanker claims and our explainer on shadow fleets. For the diplomatic backdrop, see our report on the US departure order from Saudi Arabia and today’s analysis of the intelligence memo behind that order. The wider energy history is covered in our series on how the Iran war reshaped global energy geopolitics, and the sanctions mechanics in our guide to how oil sanctions work. The WarBrief conflict zones hub tracks the Gulf escalation as it develops.

Frequently asked questions

Why did oil prices jump on October 23, 2026?
Brent crude settled at $116.72 after touching $117.45 intraday, driven by reports of possible renewed US strikes on Iran, Houthi attacks on Saudi Arabia, and disputed claims about tankers in the Strait of Hormuz. Traders priced the risk of a wider war and possible damage to Gulf energy infrastructure, rather than a confirmed supply cut.

What is the difference between Brent and WTI?
Brent is the international benchmark priced in London, and it is the reference most relevant to UK and EU fuel prices. WTI, or West Texas Intermediate, is the US benchmark priced in New York. On October 23, Brent settled at $116.72 and WTI at $103.27, a gap that reflects transport, quality and regional supply differences.

Will petrol and diesel prices rise immediately?
Not immediately. Pump prices reflect wholesale fuel, refinery margins, currency movements and retailer pricing, and they typically take several days to reflect a crude move. UK diesel had already reached 2.00 pounds a litre in early October, so a sustained Brent price above $110 keeps upward pressure on prices, but no single day’s Brent settlement sets the pump price.

Could oil really reach $150 a barrel?
Rapidan Energy president Bob McNally warned that crude could reach about $150 if the conflict escalated to cause extensive damage to critical oil infrastructure. That is a scenario warning tied to a specific escalation path, not a forecast that $150 is expected. If infrastructure is not heavily damaged, that scenario does not apply.

Are the seven tankers in Hormuz confirmed damaged?
No. Iranian state television reported seven tankers struck or hit by mines, and an earlier IRGC claim mentioned four commercial ships. President Trump called the seven-tanker claims “fake hits”, and no independent monitor had confirmed named vessels in the coverage reviewed for this article. Treat the claim as reported, not confirmed.

Sources

• Reuters: How Trump’s energy dominance turned into hubris
• Morningstar / Dow Jones: The Week in Oil: Fears of US-Iran Escalation Push Brent to $117
• Seoul Economic Daily: Trump Floats New Strike on Iran as Oil Hits 6-Month High
• Reuters: From groceries to home loans, high oil prices permeate daily life
• Malay Mail / AFP: Riyadh wakes to blasts as Houthis keep up missile strikes on Saudi Arabia
• Times Now: Oil Hits $117, Highest Since April, as Trump Hints at Fresh Iran Strikes