Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Natural Gas is one of the principle sources of energy for many of the world's day-to-day needs and activities. Today natural gas accounts for 22% of the world energy mix and demand is growing and offers many advantages compared with other fossil fuels: a relatively low greenhouse signature, energy efficiency and ease of use. It has many applications including heating buildings, generating electricity, providing heat and power to industry and vehicles. Learn more about natural gas, its components, various types and extraction methods, as well as data about its production, proven reserves and gas pipe lines in this book.