31JUL

Brent spot rises $13 to $128.30

3 min read

09:44UTC

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.

← Back to Caverns restart, 21 points short of November Jump to analysis ↓

EconomicAssessed

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

Cross-border power traders

The France-Germany day-ahead spread flipped from a EUR 17.20 German premium on 1 August to a EUR 4.15 French premium on 3 August, the same day French curtailment peaked. They cannot yet attribute the flip to curtailment alone, since a like-for-like overnight comparison shows French nuclear output rising while wind fell and demand returned on the weekday step.

EDF

River-cooling limits took 7.6 GW, 12 per cent of its fleet, offline on 3 August, the highest curtailment since the heatwave began, with an easing forecast to 4.3 GW on 4 August and 3 GW after. It manages the cut as a recurring seasonal constraint, expecting it to lift with river temperature, not repair.

Gasunie

TTF, the Dutch hub it operates, drifted to roughly EUR 55 to 58 per MWh across the window, staying inside its recent range through both the German spark reversal and the French curtailment. It reads a flat hub price as evidence that neither event this window carried enough weight to move the fuel leg on its own.

German gas-fired generators

Record German solar of 18,761 MW on 2 August pushed the clean spark spread to minus 18.48 EUR/MWh, a loss-making day, before it returned to plus 16.20 on 3 August. They now price dispatch against post-solar residual load rather than wind alone, since the sign flipped inside 48 hours on unchanged fuel and carbon costs.

European Commission (DG Energy)

Its implementing-measures register logged transposition notices from only Portugal and Slovakia against Wednesday's Article 94 deadline for Directive (EU) 2024/1788, with 25 states silent. It expects the register to fill only gradually, since filing routinely lags legislating and any infringement track against non-notifying states runs on a slower clock than the deadline itself.

Spain's LNG terminal operators

Spain's 9,145 GWh terminal inventory is the largest single stock in the EU LNG network, an option value that can reroute cargoes wherever the winter strip pays best rather than a cavern gas obligation tied to a fixed date. That flexibility matters more as Germany's cavern shortfall pushes more of the winter security question onto import infrastructure.

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