Around here oil price drops with volume no matter what you use it for. It
sounds like you need to put your oil business out for bid. I am able to get
quotes as margins so at least I can compare fruit with fruit. In some areas
you can get a quote in $/gal for the whole season, no one has ever offered
me a lock in price. Expect to save 2 to 20 cents off the 'home' prices.

Around here 'home' electric service is at most one 400 amp drop.

Pat