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Brent back above $110 on Hormuz and Saudi attacks

Brent crude is back above $110 a barrel, a five-month high, as attacks on Hormuz shipping and Houthi strikes on Saudi Arabia keep the risk premium high, while chip stocks slid in premarket trade.

CommoditiesEquitiesMacroJuniorTrader desk · 4 sources

  • Brent rose back above $110 a barrel on 20 October, its highest in five months, on tanker attacks in the Strait of Hormuz and Houthi strikes on Saudi Arabia.

  • Triple-digit crude raises the risk of higher inflation and fuel costs, while chip and AI infrastructure shares fell in US premarket trade as investors cut risk.

  • Watch whether Brent holds $110 and whether Gulf shipping flows normalise; new dates for key oil and central bank events are due.

The trader’s angle

Oil near $110 feeds inflation and squeezes growth, and it lands as investors are already pulling money out of AI stocks. A trader has to weigh a supply shock against a risk-off equity move.

The chart

Look at where Brent sat before the latest rally and how it compares with the May level it last reached.

Brent

Brent crude

$109.68

upabove $110 later

Level at 04:56 UTC on 20 October; the Wall Street Journal had it back above $110 by 08:31 UTC.

WTI crude

$98.55

uptouched $100 intraday

Level at 04:56 UTC on 20 October, after trading above $100 earlier in the day.

Friday close, Brent

$109.86

up+3.7%

Brent futures hit a $110 session high on 17 October for the first time since May, then closed just below it.

Rally drivers

3

Russian refinery attacks, missile strikes on Saudi infrastructure and Hormuz disruption, per BusinessToday.

Oil prices reflect current supply and demand, plus a : extra money buyers pay because supply could be disrupted. The premium rises when traders fear that shipping lanes or producers will be cut off, even before barrels go missing.

The is the passage out of the Persian Gulf. Attacks on tankers there raise insurance costs and the chance that flows slow. Benchmarks such as and react to that fear quickly, which is why prices can jump on headlines.

What happened

Brent crude traded back above $110 a barrel on 20 October, its highest in five months. OilPrice.com had Brent at $109.68 and WTI at $98.55 in early trading, after both had briefly topped round numbers earlier in the day. By 08:31 UTC the Wall Street Journal reported Brent above $110.

The move extends Friday’s rally. On 17 October Brent futures reached $110 for the first time since May, then closed at $109.86, a gain of 3.7%.

Why it happened

Traders point to attacks on shipping in the Strait of Hormuz and Houthi strikes on Saudi Arabia. OilPrice.com says traders are increasingly pessimistic that normal flows out of the Persian Gulf will resume, and cites reports of intensive tanker attacks that have severely hurt flows.

BusinessToday also lists attacks on Russian refineries among the drivers. Together these hit crude supply and refined fuel at once, which keeps the risk premium high.

How it ripples through markets

From tanker attacks to inflation worries

  1. 1

    Tankers attacked in Hormuz, Saudi Arabia struck

    Gulf flows are disrupted or feared to be at risk, so buyers worry about physical supply.

  2. 2

    Risk premium rises

    upBrent

    Traders pay extra for secure barrels, because a cut-off would be costly and hard to replace.

  3. 3

    Fuel costs rise

    upFuel prices

    Crude is the main input for petrol and diesel, so higher prices are likely to pass through to retail fuel.

  4. 4

    Inflation worries build

    Dearer energy lifts headline inflation and can squeeze household spending, which is likely to weigh on growth-sensitive assets.

  5. 5

    Investors cut risk

    downChip and AI shares

    With costs rising and the AI sell-off returning, money is likely to leave high-valuation tech shares.

Why it matters for traders

Oil at these levels feeds into inflation. Analysts cited by BusinessToday expect triple-digit crude to push up global inflation and retail fuel costs, which can limit how far central banks feel able to cut or ease policy.

Equities are sending a second signal. Chip makers and AI infrastructure groups slid in US premarket trade, and investors again pulled back from risk. Higher energy costs and weaker risk appetite together tend to hurt growth-sensitive shares and favour energy producers.

What to watch

The first test is whether Brent holds above $110 or fades back toward Friday’s close. Headlines on Gulf shipping and Saudi infrastructure are likely to drive price swings in either direction.

Also watch whether the AI sell-off deepens through the US session. If oil stays high while tech falls, the pressure on inflation expectations and equity valuations compounds.

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Sources

Written by the JuniorTrader desk with AI assistance, from the reports above. Intraday levels are snapshots and may have moved since. Not investment advice.

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