Probably best use is as a small wonder a'la Iron Works but with a commercial bonus. Oil should be required to be inside city borders. Naturally, that's not what you have to use it for, this might as well be a city improvement.
Basic structure is based on a picture I found in the net but basically everything covering it is my own stuff. There's also a wonder splash included.
Basic structure is based on a picture I found in the net but basically everything covering it is my own stuff. There's also a wonder splash included.