I did a search for MMO and found an online company that is selling it for $115.64 a gallon with free shipping. I bet they move a lot of it at that sweet price.
http://www.shoplet.com/Marvel-mystery-oil-Marvel-Mystery-Oils-014/SEPTLS465014/spdv
http://www.shoplet.com/Marvel-mystery-oil-Marvel-Mystery-Oils-014/SEPTLS465014/spdv