When I wrote my gas pump book I mentioned in the front of the book that I did not like the use of the word "lubster" because it is used to describe items that were not used for oils. I believe this is an example of that.
It sounds like what you are describing is an Erie 165 (page 161 of my book) gas cart. Oil dispensers generally did not have a hose (although anything can be attached to anything) and if it had a hose it was generally used for gasoline.
I would suggest you get hold of Ron Scobie, he is good at making available items such as this.
Author, 1st & 2nd editions of Gas Pump ID book, 3rd edition is now available at
www.gaspumpbible.comAir Meter ID book also available