This photo was taken in the evening. With proper lighting, work on a site can continue at night. There are three Xerxes by Shawcor 100,000-liter tanks buried underground at this location. Underground tanks offer temperature stability. They require less maintenance and provide greater site flexibility when compared with aboveground storage tanks.
This is an example of a standard retail refueling facility. The regular fuel and premium fuel would be blended to offer a mid grade fuel option. In total, the station would likely offer three gasoline products (regular, mid-grade and premium) and diesel.