My column in the newest issue of the online magazine Model Railroad Hobbyist (available free like all issues of MRH at http://model-railroad-hobbyist.com/ ) is about modeling a bulk oil dealer. My starting point was a series of photos of prototype oil dealers I have been taking for years. That information in turn was my basis to kitbash and rearrange a Walthers McGraw Oil kit, adding some scratchbuilt components, to create a realistic model.
The article naturally also includes elements from my prior blog posts about Associated Oil history (which you can read at: http://modelingthesp.blogspot.com/2013/12/associated-oil-company-background.html ) and Associated tank cars (available at this link: http://modelingthesp.blogspot.com/2014/02/associated-oil-company-tank-car-fleet.html ). In fact, some of the background research for those two posts was done with a model of a bulk oil dealer in mind.
This Associated oil dealer is just one of the oil depots I plan for the layout. I already have a small Union 76 dealer, modified from a Chooch kit, which is shown in a photo in the MRH article. I will also add a Richfield dealer and possibly also Chevron if I have space.
If the article is of interest, it is on the March 2014 issue of MRH. To obtain it in various formats, go to: http://model-railroad-hobbyist.com/magazine/mrh-2014-03-mar .