There is a reason they get $$$ for electric, gas, and oil. Partly because you cant just get or make it yourself. Partly because you don't have to. I found that shopping around and juggling contracts with other suppliers for gas and oil usually saves me a little bit (5% or so over a competitor). You also need to watch the quality of the product. I use both sources in my home. Both delivered by truck. With oil, I own the tank. With gas, I rent it. You need to follow the commodities and decide if you want to lock in rates or let them float. Lately, I have not locked in anything. I also keep the wood handy in case the price of oil rises, I will hedge with wood until the prices come down. Another thing you can do IF you have some extra cash is to go to buy some stock in the resource you are using. I bought lots of oil stock. If the price of oil rises, so does my stock value, offsetting the oil cost. If it drops, well, I don't need the offsetting. Win-Win.
Or this:
http://www.floridamoves.com/real_estate/Florida/Florida.htm?WT.mc_ID=301116020200000&WT.srch=1