Grandt Line Products Inc
Midwest Petroleum Distributors Accessory Set

Includes Pump House, Loading Dock & 3 Oil Tanks (Use #5908 for Office)
Walthers Part # 300-5907, p. 516 Walthers 2011 HO Scale Reference
HO scale, $32.00, not currently in stock at Walthers, Expected: TBA

 
Found in big cities and small towns, small gasoline and oil distributors like this have been part of the American scene since the 1920s. Still found at trackside, this detailed HO Scale model includes a Pump House, Loading Dock and three Oil Tanks.
 
The Corrugated Iron Warehouse #300-5908, sold separately, can be used as a main office/storage building with this kit.