1 September 2026
Executive Summary
The US-Iran conflict has entered another dangerous phase after the first direct exchange of military attacks in approximately a month.
US forces struck Iranian positions on Larak Island in the Strait of Hormuz after Washington said Iranian forces were preparing launchers to fire rockets carrying sea mines into the waterway.
Iran responded by launching missiles at two US air bases in Jordan.
President Donald Trump subsequently warned that the United States would respond again, saying Washington would “hit them hard”, although he also said the renewed exchange did not necessarily mean a return to full-scale war.
The situation has now become even more serious.
UKMTO has reported that a commercial tanker was struck by three projectiles while sailing out of the Strait of Hormuz. No casualties or environmental impact were reported.
The simultaneous messages are important.
Neither side is openly saying it wants a new full-scale war.
Both sides are nevertheless demonstrating that they are prepared to use direct military force.
That creates a highly unstable escalation environment.
UK Impact
For UK companies, the immediate commercial consequences extend well beyond businesses physically operating in the Gulf.
Brent crude has moved above $91 a barrel as markets respond to renewed military confrontation and shipping risk.
Exposure could emerge through:
- Fuel prices.
- Aviation costs.
- Road transport.
- Shipping.
- Petrochemicals.
- Plastics.
- Manufacturing inputs.
- Inflation.
- Interest rates.
- Insurance premiums.
Hormuz itself also remains far from normal.
Kpler data cited by Reuters recorded just five commodity-vessel transits on Monday, compared with a recent ten-day average of around 14.
No liquid tankers were recorded among those five transits.
Vessels operating without active AIS transponders are not captured in those figures, so they should not be treated as a complete vessel count.
Nevertheless, the figures reinforce the central point:
political discussion about reopening is still running substantially ahead of normal commercial traffic.
Global Impact
The conflict is now combining three different forms of pressure:
**military force
- economic sanctions
- maritime restriction**
That matters because one can continue even if another temporarily eases.
A ceasefire in military exchanges would not automatically:
- Reopen Hormuz.
- Restore tanker confidence.
- Remove sanctions.
- Restore insurance capacity.
- Rebuild inventories.
- Lower energy prices immediately.
Conversely, improved maritime access would not prevent another military exchange from reversing confidence.
The US Strategic Petroleum Reserve has also fallen to approximately 286.6 million barrels, its lowest level since November 1982.
That reduces one of the world’s most important emergency energy buffers at precisely the time geopolitical risk remains elevated.
The tanker incident is particularly important.
It moves the risk from theoretical disruption into direct exposure for commercial shipping.
Our View
Businesses should now plan around an escalation cycle, rather than attempting to predict a single end point.
Companies should ask:
- What happens if US and Iranian strikes continue intermittently?
- Which operations are sensitive to oil above $100?
- Which suppliers rely indirectly upon Gulf energy?
- Are freight contracts indexed to fuel?
- What inventory sits outside the affected region?
- Could insurance premiums change during a voyage?
- Can suppliers absorb another energy-price spike?
- Do contracts contain usable escalation or force-majeure provisions?
- Are alternative shipping routes commercially realistic?
- How quickly could sanctions change after another military exchange?
- Which decisions depend upon the assumption that the conflict is de-escalating?
- Has marine insurance been reconfirmed following direct attacks on commercial vessels?
The most important risk is not necessarily continuous warfare.
It may be repeated episodes of escalation separated by periods that appear temporarily calmer.
That can be especially difficult for businesses because it discourages both normal operations and decisive contingency planning.
Risk Indicator: CRITICAL – GEOPOLITICAL, ENERGY & MARITIME
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The information contained within these Market Alerts is provided for general market awareness and informational purposes only. It does not constitute financial, legal, investment, regulatory or insurance advice. Whilst every effort has been made to ensure accuracy at the time of publication using multiple reputable and independently verified sources, geopolitical events, legislation, regulation and market conditions may change rapidly. Readers should obtain appropriate professional advice before acting upon any information contained herein.
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