Hi, I've just joined your forum as I came across the website whilst trying to find 'cheap' price for 1000 litres of oil.
I found, as Kenny suggested, ringing every company in my area to find the best price was my only option at getting a 'good' deal.
I live on the Suffolk/Cambridge boarder and have just ordered oil at 49.05 per ltr, . I had to haggle a bit to get this so don't be afraid to 'play' one company off the other!
I can remember purchasing oil when I bought my first house 15 years ago AT 17P per litre and I thought that was expensive!