Each Webminefield owned by the Crystal Confederation will drain 25kt fuel per turn from each ship that is stuck inside the webminefield. This effect is cumulative, multiple overlapping webminefields will drain multiple times. If a webminefield is owned by any other race than the Crystal Confederation, it will not drain any fuel. It will however inflict the typical fuel losses when a webmine is struck. Crystalline are always immune to web drain, even if they are each opponents in a Giant Melee game.