This webpage examines the natural gas sector's practice of hydraulic fracturing. This practice is also known as fracking, fracing and fraccing. The website is organized into four primary areas, including the importance of unconventional gas reservoirs, the conduct of hydraulic fracturing, its regulation, and potential environmental impacts of fracturing. Empirical data from the Colorado Oil and Gas Conservation Commission , Duke University, and the National Research Council are used to critically assess the risk of potential impacts. Other sources of information from government, industry, environmental organizations are provided for additional inquiry.