If you are leasing your tank, consider buying one as soon as possible. I bought a 500 gallon one 6 years ago and a 1000 gallon one 4 years ago. That way I am not locked into the tank leaser. That saves me an average of 25 cents per gallon right off the top. I joined a local group buy club and we competitively bid for the lowest price, which brings it down even more. With the capacity I have, I fill them in June or July when the price is lowest. This last year I paid 89 cents a gallon. Topped them off at $1.29 a gallon in November, and it is now at 2.39 / gallon. I calculated these tanks have already paid for themselves twice over. You are warmer weather then I have, but you might want to check it out.