We have 4 drums of the Royal Mineral Gear Oil, 2 of the 140 and 2 of the 250. This is a product that is often used as gear oil in irrigation center pivot gear boxes. One benefit is that it will not leak past a worn seal as easily. It has not been moving for us so we would sell these for $490 per drum. We sell a similar product in the Mystik line, called Centralube. Current price on a drum of that is $1300.