Learn About Oil and Gas Drilling, Fracking

Questions have been raised about drilling for Marcellus Shale gas and the potential for contamination of water supplies as a result of the chemcials used to fracture the gas-producing seams. Energy In Depth offers a short video of how a well is drilled and fracked, and resources explaining why drilled wells are not a source of ground water contamination. The video is of a traditional (not horizontal) well, but the concepts are the same.