8NOV

Brent spot rises $13 to $128.30

3 min read

19:56UTC

The EIA's daily series shows physical Brent climbing from $115.22 on 20 October to $128.30 on 23 October, the steepest leg on the day Iran's Guards claimed hits on oil transfers.

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ConflictAssessed

Key takeaway

Physical Brent rose $13 in three sessions to $128.30 on 23 October.

Brent spot, the physical price the US Energy Information Administration (EIA) tracks, rose from $115.22 a barrel on Tuesday 20 October to $128.30 by Friday 23 October, according to the EIA's daily series⁠¹. It closed at $128.12 on Monday 26 October and $123.10 on Tuesday 27 October. The spot series tracks cargoes loading within weeks, the oil refiners need now.

At $128 a barrel the crude alone cost about 80 US cents a litre, before refining, freight and tax. The biggest of the three rises, $8.02 to $125.39, came on 22 October, the day Iran's Revolutionary Guards claimed attacks on tankers moving oil from ship to ship at sea.

Spot peaked at $135.51 on 2 October, the day the G7 pledged up to 100 million barrels. It last closed above $130 on 9 October, at $130.03, and fell to a low of $115.22 on 20 October before the climb.

Stock releases add barrels on land, and the G7 barrels flow over four months. The attacks on transfers and Iran's notice against a single shipowner fall on the freight leg instead, where moving crude from The Gulf to Asia already cost more than $37 a barrel by mid-October.

Deep Analysis

In plain English

Brent is the world's main benchmark for crude oil prices. The spot price is what buyers pay for oil delivered soon, rather than in future months. The US government's energy statistics office tracks that price every day. Between 20 and 23 October it rose by about $13 a barrel, a fast climb. The biggest jump came on the day Iran's Revolutionary Guards said they attacked tankers moving oil between ships at sea. Higher crude prices usually feed into fuel prices a few weeks later.

Deep Analysis

Root Causes

Ship-to-ship transfers are how much of the region's crude, sanctioned and legal alike, changes hands at sea. Attacks on transfers raise the cost of moving oil without destroying any production, so the price signal lands on spot cargoes first.

The G7 release acts on a different part of the chain. It adds barrels to markets near the reserves, mostly in North America, Europe and Japan, and flows over months, while the shortage of delivered Gulf cargoes is immediate.

What could happen next?

Consequence
Fuel retailers are likely to pass the late-October rise into pump prices in November.
Risk
A confirmed strike on a Gulf export terminal would push spot back towards its early-October peak.

Source Landscape

This story draws on neutral-leaning sources

Primary parallel: After Iraq invaded Kuwait in August 1990, Brent rose from about $17 a barrel in July to above $40 by October. The rise came from fear over Gulf supply routes as much as from barrels lost, since Saudi Arabia raised output to cover most of the shortfall.

Counter-parallel: On 17 January 1991, the day the air war against Iraq began, oil fell by about $10 a barrel in a single session. Once traders judged that Gulf export routes would stay open, the risk price collapsed faster than it had built.

Immediately, refiners buying prompt cargoes paid about $13 a barrel more in three sessions. Those margins pass into diesel and jet fuel within weeks, and Asian importers, who take most Gulf crude, feel it first.

Structurally, the gap between the cost of oil at sea and the cost of oil in storage favours countries with large strategic reserves. Importers without them, much of South Asia and Africa, face the spot price with no buffer.

Consensus view: The US Energy Information Administration's daily series ties the sharpest move, $8.02 on 22 October, to the day the IRGC Navy claimed hits on ships during ship-to-ship transfers. On that reading the market is pricing attacks on how Gulf oil moves, not a loss of oil in the ground.

Counter-view: The G7's pledge of up to 100 million barrels was meant to cap prices, yet spot rose $13 in three sessions. Stock releases add crude on land in consuming countries, while Asian refiners need cargoes delivered from The Gulf, so a release in the West does little for a buyer in Mumbai or Ningbo.

Key tension: Whether spot prices now follow supply volumes, which stock releases can offset, or freight and insurance risk on the sea leg, which they cannot.

Sources:US Energy Information Administration

Mentions:EIA →Brent Crude →IRGC Navy →G7 →Iran →Iraq →Kuwait →Ningbo →Mumbai →Saudi Arabia →Japan →North America →

First Reported In

Update #183 · Iran threatens legal action on Sinokor ships

US Energy Information Administration· 29 Oct 2026

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Causes and effects

Caused by

IRGC says it hit 4 oil transfer ships

Brent spot's biggest daily rise came on 22 October, the day the IRGC Navy claimed hits on transfer ships.

Occurred 22 Oct 2026

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This Event

Brent spot rises $13 to $128.30

Refiners buying prompt cargoes paid about $13 a barrel more in three sessions.

Different Perspectives

Office for Budget Responsibility

The OBR's 28 October forecast assumed $82 oil for 2026 and 2027, from market prices for the ten working days to 19 August, and blamed dearer wholesale energy on the war without naming Iran. It expects CPI inflation close to 4% in early 2027 even at that price.

Hengaw, Kurdish rights group

Hengaw reported the 3 November hangings of Amirhossein Maleki and Amirhossein Ebrahimi in Isfahan, saying Ebrahimi was tortured into confessing and that nine of 12 people sentenced to death in the case have now been hanged. Iran's judiciary holds that the defendants killed members of the security forces.

FINTRAC, Canada's financial intelligence unit

FINTRAC worked with the US Treasury on the 6 November designation of eight money services businesses in British Columbia, Ontario and Quebec. Treasury says the businesses still operate, some under new names, so closing them falls to Ottawa.

Abdul Qadir al-Dakhil, Governor of Nineveh

Al-Dakhil cancelled three Mosul International Airport contracts on 7 November over alleged links to armed groups, after meeting Prime Minister Ali al-Zaidi in Baghdad. He named no group or company, and said the contracts will go to international companies.

Kuwait

Kuwait condemned the Houthi missile fired towards the Madinah region on 5 November and restated its support for Saudi Arabia, the Qatar News Agency reported. Its state tanker company, Kuwait Oil Tankers Company, is among the Gulf state fleets on Iran's expanded Hormuz list.

Scott Bessent, US Treasury Secretary

Treasury designated an alleged Chandigarh false-flag network on 4 November and eight Canadian exchangers on 6 November, while State sanctioned alleged MANPADS intermediaries. None of the actions touches an oil buyer; they target the paper, cash and procurement around Iran's trade.

Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.