Refinery

A Refinery is a rather ramshackle structure, albeit a versatile one. Having existed for at least thirty years before the events of StarCraft, it was designed to speed up the ardous process of Vespene mining on the more desolate Terran worlds of the Koprulu Sector. Built on a Vespene geyser to harvest Vespene gas from it, Space Construction Vehicles pick up the gas and deliver it to a Command Center.