Brent at $102.31: a Hormuz risk premium meets a seasonally weak window
OPEC+ held output steady and the Brent-WTI spread widened above $11. Autumn refinery maintenance usually softens crude demand.
What happened
Seven core OPEC+ members kept November output unchanged on October 4 and meet again on November 1. Brent traded at $102.31 in early Asian trading on October 5, with the Brent-WTI spread above $11 on Strait of Hormuz threats, high insurance costs and tanker freight rates. US crude inventories rose 0.9 million barrels to 427.3 million in the week ended September 25, while distillate stocks are 14% below the five-year average.
- Seven core OPEC+ members kept November output unchanged at their October 4 meeting. The next meeting is on November 1.
- Brent traded at $102.31 in early Asian trading on October 5, with the Brent-WTI spread above $11, which traders attributed to Strait of Hormuz threats, high insurance costs and tanker freight rates.
- US commercial crude inventories rose 0.9 million barrels to 427.3 million in the week ended September 25. Distillate stocks fell 2.3 million barrels and are 14% below the five-year average. Refinery utilization was 92.5%.
Why it matters
The spread between Brent and WTI shows where the risk sits: seaborne crude exposed to the Gulf carries the premium, while landlocked US barrels do not. Tight distillate stocks heading into winter matter more for diesel and heating oil than for crude.
What history shows
In our data Brent is +39.35% over three months and +64.86% year to date, closing at 100.32 on October 5, 2026.
Heating oil, which tracks diesel, closed +114.34% year to date.
Seasonal backdrop
October and November have been soft months for crude: WTI averaged -1.77% in October and -2.66% in November since 2000, rising in 46% and 42% of years. Refinery maintenance and the end of the driving season reduce crude demand in this window.
Markets in this insight
| Market | Last | Day | 1 month | Year to date | Oct average | Oct pattern |
|---|---|---|---|---|---|---|
| Brent crude oil | 100.58 | +0.26% | +4.47% | +65.29% | -1.01% | no clear pattern |
| WTI crude oil | 89.44 | +0.01% | -2.23% | +55.76% | -1.77% | no clear pattern |
| Heating oil (ULSD) | 4.5694 | +0.53% | +0.64% | +115.48% | -0.78% | no clear pattern |
| Exxon Mobil | 164.48 | +0.29% | +3.14% | +39.42% | +1.57% | weak |
| Shell | 3,651.00 | +0.54% | +6.23% | +33.28% | +1.60% | strong |
Scenarios
Risk premium fades
Emergency stock releases and rerouted Saudi exports ease the supply fear and seasonal weakness takes over.
- Brent-WTI spread narrowing
- Lower tanker insurance rates
Supply shock deepens
A disruption in Hormuz traffic pushes Brent back above recent highs.
- Shipping incidents in the Gulf
- Further force majeure declarations
Diesel squeeze
Crude stabilises while low distillate stocks lift diesel and heating oil into winter.
- Further distillate draws in EIA data
What to watch
- Wednesday EIA inventory reports
- November 1: OPEC+ meeting