propane gas prices tend to help fluctuate and modify almost constantly. Propane is any gas that’s very popular to run engines but can also be used for heating in certain residential homes. Like any commodity how much demand there is made for propane gas affects the value. One other factor that affects the amount propane costs would be the current price connected with crude oil. If crude oil costs a lot of money at the moment then a chances are in which propane will too.