Motorists have been hit by an 11th successive week of fuel price rises.
The average cost of a litre of petrol stands at £1.31 at UK forecourts, with diesel costing £1.35, Government figures show.
Fuel has not been more expensive than current levels since July 2014.
Over the past six months the cost of filling up a typical 55-litre family car that runs on petrol or diesel has risen by around £6.
There is growing speculation that the eight-year freeze on fuel duty could be scrapped in this autumn’s Budget.
Fuel duty has been kept at a rate of 58p per litre since 2011. Mr Hammond said this has saved the average car driver £850 compared with the pre-2010 escalator.
Steve Gooding, director of the RAC Foundation, said: “We’re still 12-14p away from the record pump prices seen back in 2012 when oil was trading as high as 120 US dollars a barrel, whilst today Brent crude is nearer to 80 US dollars a barrel.
“However, if sterling remains weak against the dollar then we could be testing those forecourt highs with oil at no more than 90-95 US dollars a barrel.
“With all the uncertainty in the world that is not a far-fetched scenario.”
Howard Cox, founder of the Fair Fuel UK campaign, said: “The unprecedented pump prices are hitting motorists and small businesses hard, yet the Chancellor is hell bent on hiking duty on the already highest taxed drivers in the world.
“He stubbornly refuses any notion of an independent pump price monitoring body to check the opaque world of the fuel supply chain.
“He is completely out of touch with reality, wallowing in the billions of increased VAT revenue of the past year as oil prices have soared. It is manifestly dishonest and unfair on hard-pressed drivers and the economy.”