What is natural gas?
Natural gas is methane (CH4), a combustible gas than can be used as fuel for automobiles, for industrial process heat, for residential uses like cooking, and for electricity generation in power plants.
Natural gas is found in a variety of geologic formations, including coalbed seams, sandstone, limestone, shales, and, frozen methane hydrates under the ocean floor. The extraction of natural gas from the ground also produces natural gas “associates” or “gas liquids” like propane, ethane, and butane, that are typically separated from methane and used for other commercial purposes. Because natural gas takes so many different forms and exists in so many different formations, vast quantities of it are found in most parts of the world.