Across the whole of Britain, approximately 4 million households are not connected to mains gas heating. See below for some helpful resources if your property is off-gas.
ACRE, Citizens Advice and the Federation of Petroleum Suppliers (FPS) have produced "Best Practice for Oil Buying Groups". This document gives you more information on buying groups:
Price Comparison Sites
If you would like more information on switching your off-gas energy supplier, there are a few websites where you can compare and save: