Ok, I'm from the Reading area (quite expensive at everything) originally, and I go to uni in Southampton, so I see the prices of petrol in both areas. Reading is SO expensive. It broke the £1 mark when the prices went up a while back, but settled back down to around 94-96p quite soon after. Southampton is about 4-5p cheaper usually, so never went above £1, which is good.
Now, prices around Reading ar 99p, with some places at >£1. I only noticed this when I went to Southampton on wednesday and saw the petrol was 96p!
So yes, it's going up, a lot, which is sad =(