Average UK petrol prices have exceeded £1.51 for the first time, and a further increase is “inevitable”.

The typical cost of a litre of petrol at UK forecourts was 150.65p on Saturday and 151.25p on Sunday, according to figures from data firm Experian Catalist.

The average cost of a litre of diesel is also at a record high, reaching 154.69p on Saturday and 154.72p on Sunday.

RAC fuel spokesman Simon Williams said: “The average price of both fuels has shot up by more than 1.5p since Thursday.

“Despite the wholesale market calming slightly at the end of last week as oil fell back under 100 US dollars per barrel, prices at the pump will continue to go up as retailers buy in new stock at much higher prices.

“This week will be an important one in terms of the oil price as it’s likely to reveal the speed of the inevitable upward trend or the extent of the volatility in the market.”

Why have fuel prices increased?

Russia’s invasion of Ukraine led to oil prices reaching an eight-year high last week due to concerns over the reliability of supplies.

This affected wholesale prices paid by fuel retailers.

AA fuel price spokesman Luke Bosdet said petrol hitting 150p per litre is “a milestone that millions of motorists have dreaded”, noting that some forecourts charged only £1 per litre less than two years ago.

He warned that drivers are being hit by “record pump prices, other inflation and tax rises, along with a raft of extra charges implemented or threatened by councils for motoring in city and town centres”.

AA predict record fuel prices ‘any time soon’

AA president Edmund King said: “Russia’s attack on Ukraine and resulting geopolitical uncertainty has pushed Brent crude above 100 US dollars per barrel for the first time since 2014.

“This will result in hikes in prices at the pumps.

“New record fuel prices are likely any time soon.”

While Mr Williams warned last week that petrol prices could rise above £1.60 a litre.