You might try the shopping plazas. The fast food shops there have a dump on site that the put their oil in. This is then sold to whoever by the shopping plaza. If the fast food shop agrees you could do a drum transfer and pick it up from their door. This is good for you and them as they dont have to cart it, you get the oil and dont have to worry about the plaza management as you are not taking their oil. Well it is not theirs until it goes into the plaza dump vat.
Cheers
Chaos