Abstract: A leakage containment device for containing leakage from an oil tank supplying oil to a heating system includes a container including a bottom wall and a perimeter wall being coupled to and extending upwardly from the bottom wall to define an interior space. An upper edge of the perimeter wall defines an upper open end of the container to permit an oil tank to be placed in the interior space. A lid is hingedly coupled to the upper edge of the perimeter wall. The lid selectively closes the upper open end of the container when the lid is in a closed position over the upper open end. The lid is pivoted away from the upper open end to permit access to the upper open end.