I don't know if this is true, but I heard on the news last night that they're expecting the prices to hit around $7 a gallon in some places.

Edit:

That now seems to be the case for our petrol if the prices were in USD/US Gallon rather than GBP/litre.

Over here unleaded petrol is now around 90p per litre. Used to be 68p per litre.

So: £0.90/litre * 3.78 = £3.40/US Gallon.

£3.40 = $6

You think you guys have it tough?! Come live over here! Look at what we pay for one US Gallon of petrol!