The Sludge Fen[57, 7]
is an oil field the northeast corner of the Barrens. Occupied by the Venture Trading Company for their oil refining projects, the fen is one of the Oil platforms that can be visited in game. This is a dangerous area to adventure in, as the cowardly Venture Co. employees will rush for help if they are attacked. Sludge Fen is led by Tinkerer Sniggles, Foreman Grills and Engineer Whirleygig.