The price of oil has risen above $100 a barrel for the first time since July as the escalating conflict in the Middle East threatens further disruption to global supplies.
Brent crude, the international benchmark for oil prices, rose 2.7% to about $100.6 after tensions increased in the Gulf amid the latest tit-for-tat exchange of fire between the US and Iran.
The US military said it had “destroyed” multiple Iranian tankers, after Tehran attempted to strike a US navy warship with ballistic missiles. The exchange came after Iran-backed Houthis attacked four cities in Saudi Arabia the previous night, wounding more than 70 people and setting oil installations ablaze.
UK and mainland Europe gas prices also soared on Wednesday. The benchmark Dutch gas contract rose by almost 4% to €78.73 a megawatt hour, the highest since January 2023. Meanwhile, the British contract rose by 7.77p to 196.57p a therm, the highest since December 2022.
On Tuesday, the Bank of England governor, Andrew Bailey, said the latest rise in oil prices was putting pressure on inflation and interest rates.
“The risks, I’m afraid, are on the upside,” he told MPs. “And that’s really the risks coming from energy prices.”
The oil price has jumped by a quarter since early August as hopes for a permanent resolution to the six-month-old war faded and as fighting flared again.
The energy companies BP, Shell and the British Gas owner, Centrica, were among the top performers across the FTSE 100 on Wednesday morning, with their shares rising by at least 1% on the back of the higher oil price. The index was down by 0.5% overall.
The climb in costs has hit UK motorists, with petrol at the pump reaching an average of 166.2p a litre on Tuesday, the highest level in four years, according to the motoring body the AA.
The AA said diesel hit an average of 187.7p, a price it last reached in May. Prices for a litre of petrol have risen 4.4p since the August bank holiday, with diesel up 4.1p.
Brent is up more than 60% this year, and has risen above the $100 mark for three periods so far in 2026.
China, the world’s largest importer of crude, has increased purchases in recent days, after a hiatus that had been a factor keeping oil prices somewhat in check in the early part of the conflict.
“For the direction of crude prices, we are also monitoring Chinese crude imports as a key indicator,” said Giovanni Staunovo, a commodity analyst at UBS Global Wealth Management, in a note.
“Chinese crude imports recovered to nearly 9m barrels per day in August, up from the June low of 7.15m, but still lower compared to the [pre-conflict] February imports of 12.6m. It looks like the recovery trend could continue.”
Oil prices have fluctuated in the six months since the start of Tehran’s block on the strait of Hormuz prompted what many feared would be the greatest energy supply disruption in history.
In the first weeks after the first US-Israeli attacks on Iran in late February, oil prices soared past $100 a barrel and analysts predicted that prices could rise to as high as $150 as flows through Hormuz came to a halt.
The oil price peaked at $126 in April during the conflict but later fell back amid hopes of a ceasefire in the region. The price then began to climb again after a memorandum of understanding between the US and Iran fell apart and hostilities restarted.
Gas prices have also risen on the back of the conflict. UK natural gas prices hit the highest level in three and a half years this month.
The rise in energy prices has stoked fears around inflation and the prospect of higher interest rates this year. In the US, economists are expecting at least one interest rate rise from the Federal Reserve by the end of the year.
