I noticed this article
MISERY FOR MOTORISTS AS PETROL HITS £6 A GALLON
http://www.dailyexpress.co.uk/posts/view/168128
Hard to get a handle on the story as they mix liter with gallon but it appears "...But some forecourts are already charging 131.9p a litre – just a penny short of the £6 gallon...."
The article also mixes taxes and fuel duty but near as I can figure out after the fuel duty goes up from 57.19p to 57.95p the fuel duty alone will be 44% of the pump price.
Around here State/Federal Tax is about 15% of pump price.
Another reason to not support the VAT tax. Once enacted at a low rate it can be changed at the needs of politicians.