8th September 2026
Brent crude has surged to almost $100 a barrel, with OilPrice.com showing prices around $99 on Tuesday, as the continuing conflict in the Middle East threatens global oil supplies.
The immediate concern for Britain is not whether oil briefly crosses the symbolic $100 threshold. It is whether prices remain at this level or move considerably higher for weeks or months.
That would put further pressure on an economy already struggling with inflation and weak growth.
Oil prices feed directly into the cost of petrol and diesel, but the effects go much further. Higher fuel costs increase the price of transporting food and other goods, raise costs for manufacturers and put pressure on airlines, farmers and other energy-intensive businesses.
Eventually, some of those costs reach consumers.
For motorists, the first warning will be at the filling station. For households already facing high living costs, another increase in petrol and diesel prices would be unwelcome. For businesses, particularly those dependent on road transport, the impact could be considerably greater.
The timing is particularly difficult for the Government.
UK inflation was 2.9% in July, still well above the Bank of England's 2% target. The Bank has been gradually reducing interest rates, but a sustained oil-price increase could make further cuts more difficult.
That creates an uncomfortable dilemma. Higher oil prices weaken household purchasing power and increase business costs, potentially slowing the economy. At the same time, they push inflation upwards.
The Bank of England cannot produce more oil by raising interest rates. But it may nevertheless have to keep rates higher for longer if the increase in energy prices begins to feed into wider inflation.
The immediate cause of the oil surge is the disruption to supplies from the Middle East. Oil shipments through the region have fallen sharply, with estimates suggesting flows have dropped from around 18 million barrels a day before the conflict to about 11 million.
So far, the market has avoided an even larger price shock because some supplies continue to move through alternative routes and other producers are increasing output.
But the situation could change rapidly.
If the disruption becomes more severe, particularly around the Strait of Hormuz, oil could move well beyond $100.
For Britain, that would expose an uncomfortable weakness: despite the growth of renewable energy and electric vehicles, the economy remains heavily dependent on oil for transport.
That makes the transition away from fossil fuels not simply an environmental issue but an economic and national-security issue.
Britain needs to reduce its exposure to international energy shocks by developing reliable domestic electricity supplies, expanding renewable generation, improving the electricity grid and making electric transport economically attractive.
But there is an important condition.
Electricity must be affordable.
There is little economic benefit in replacing petrol and diesel with electric vehicles if households and businesses face electricity prices that undermine the advantage.
The same applies to British manufacturing. If the Government wants Britain to remain competitive in industries such as cars, buses and trains, energy costs will be an increasingly important part of that equation.
The oil price therefore provides another warning that energy policy cannot be separated from economic policy.
Britain cannot control events in the Middle East. It can control how vulnerable its economy is to them.
Brent at $99 is not yet a crisis.
But if it settles above $100 and stays there, Britain could soon discover that the consequences extend far beyond the price displayed at the petrol pump.
The closer oil gets to $100, the more important it becomes for Britain to ask a simple question: how much longer can the economy afford to remain vulnerable to energy shocks it cannot control?