On Fri, 22 Jun 2012 05:07:18 -0700 (PDT), Jim K wrote:

better trend data going back 4 years here

http://www.cheapestoil.co.uk/articles/trend.aspx

There are period options on the Boiler Juice one as well, or you can embed a
bit of coe in your own site:

http://www.boilerjuice.com/Press-and-media_42.html

What I don't like about the cheapest oil one is that you have to work out the
p/l from guesstimated total from the graph. Who quotes oil prices by the
total cost? It always p/l It also only has 500 and 900l as options. A few
companies offer a discount for 1000l or above, most do for 2000l and above.
Oh it needs javascript for the radio buttons to work as well.

--
Cheers
Dave.