Is the support offered by the oil storage tank base really that important?

Yes, the need to provide stable bases and supports for domestic oil storage tanks both of steel and plastic construction is of paramount importance for reasons of both safety and environmental protection. If an oil storage tank is inadequately supported the oil storage tank itself can be weakened leading to the eventual failure of the oil storage tank and escape of the stored fuel. During the life of an installation an oil storage tank base will need to provide continual structural support even though ground conditions may alter from season to season and year to year.