Oil Above $94: What UK Operators Face Now

What the oil price spike means for UK operating costs

Brent crude rose roughly $2 on 11 June after Trump posted on Truth Social that US forces would hit Iran "very hard" if no deal were reached, as reported by City AM. The move took the benchmark above $94, its highest level since the Strait of Hormuz was first blocked earlier in the current standoff. Before that disruption, Brent had been trading in the low-to-mid $80s, meaning the cumulative geopolitical premium now sits at roughly $10 per barrel.

For UK businesses, that premium transmits quickly. Diesel and heating oil track Brent with a short lag. Freight surcharges, already elevated by Hormuz-related shipping diversions, are likely to widen further. Any firm running a fleet, heating commercial premises, or importing goods by road faces a measurable cost increase that compounds month on month if prices stay at or above current levels.

Electricity prices are also exposed. The UK's gas-fired power stations still set the marginal price in most half-hour settlement periods, and gas markets move in sympathy with oil during supply-side shocks. Operators on flexible procurement contracts will see the effect within days; those on fixed deals have breathing room, but only until the next renewal.

Kharg Island and the Strait of Hormuz: supply risks in numbers

Kharg Island, located in the northern Persian Gulf, handles approximately 90 per cent of Iran's crude exports, amounting to an estimated 1.5 million to 1.7 million barrels per day. Trump suggested on Truth Social that US forces could "assume total control" of the island and other Iranian oil infrastructure, likening the plan to the recent operation that removed Venezuelan leader Nicolás Maduro, as reported by City AM.

"At some point in the not too distant future, we will be taking Kharg Island, and other oil infrastructure points, and assume total control of their Oil and Gas Markets, much like we have with Venezuela, which is working out brilliantly for both Venezuela and the United States of America."

Iranian state television reported explosions near the Strait of Hormuz, which remains blocked, according to City AM. The strait is the world's most critical oil chokepoint; roughly 20 per cent of global oil consumption passes through it daily, according to the US Energy Information Administration. A prolonged closure forces tankers onto far longer routes around the Cape of Good Hope, adding weeks to delivery times and significant cost to every cargo.

The supply picture is already tight. OPEC+ production cuts have kept spare capacity thin. Removing Kharg Island's output, whether through seizure or destruction, would take a further 1.5 million-plus barrels per day off the market. That is a volume large enough to push Brent well beyond current levels if the disruption persists for more than a few days.

For UK importers, the concern is not just price but availability. Refined product markets in north-west Europe draw on a global crude pool. Any sustained tightening in the Gulf ripples through to petrol, diesel, jet fuel, and petrochemical feedstocks within weeks.

UK government vacuum: no defence secretary at the worst moment

The escalation coincides with a period of unusual vulnerability in Whitehall. John Healey resigned as Defence Secretary after concluding that the government's Defence Investment Plan "falls well short of what is required for defence and the country at this dangerous time," according to his resignation letter as reported by City AM. He accused the Treasury of being "unwilling to commit the resources that the nation needs to defend the country at this time of rising threats."

The vacancy leaves the UK without a defence secretary during an active military escalation involving a NATO ally. It is the first such gap during a live conflict threat since the Falklands era, according to parliamentary historians. For businesses, the immediate question is one of coordination: who in government is leading on energy security contingency planning, and who is the point of contact for critical national infrastructure operators if the situation in the Gulf deteriorates further?

Prime Minister Sir Keir Starmer's authority has been weakened by the departure, City AM reported, particularly because defence and national security had been a relative reputational strength. The political uncertainty adds a layer of risk for firms that depend on clear government signalling during supply crises.

What operators should be doing now

The situation is fluid, but the cost exposure is concrete. Several areas merit immediate attention from finance directors and operations leads at UK mid-market firms.

Energy procurement

Firms on flexible energy contracts should review their exposure to spot price movements. Those with fixed contracts expiring in the next quarter face renewal at significantly higher rates unless Brent retreats. Speaking to brokers now, rather than at renewal, gives more room to negotiate or layer hedges.

Freight and logistics

Haulage and shipping surcharges are likely to rise again. Operators should request updated fuel surcharge schedules from logistics providers and, where possible, model the impact of oil at $100 and $110 on landed costs. Building those scenarios into margin forecasts now avoids surprises later.

Supply-chain diversification

Any firm sourcing goods or raw materials that transit the Strait of Hormuz, or that depend on petrochemical inputs, should map alternative supply routes and secondary suppliers. The diversion around the Cape of Good Hope adds roughly two to three weeks to shipping times from the Gulf to northern Europe, according to industry estimates.

Cash-flow stress testing

Higher input costs compress margins. Finance teams should stress-test working capital models against a scenario in which energy and freight costs remain 10 to 15 per cent above current levels for the remainder of the quarter. Early identification of pinch points allows time to arrange facilities or adjust payment terms with suppliers.

Monitoring government response

With no defence secretary in post and political attention divided, government communication on energy contingency measures may be slower than usual. Firms in energy-intensive sectors should monitor updates from the Department for Energy Security and Net Zero and from trade bodies that act as conduits for Whitehall guidance.

None of these steps guarantee insulation from a further escalation. But the firms that scenario-planned during previous Gulf disruptions, including the 2019 tanker seizures and the 2022 energy crisis, consistently reported shorter recovery times and smaller margin hits than those that waited. The pattern is worth noting.