Gaseous fuels are the foundation of potential heat energy. They are gaseous state hydrocarbons consisting of carbon monoxide and hydrogen. Pipes are used for the dissemination of gaseous fuels to transport them to their place of consumption. The fuels are divided into various classes like liquefied petroleum gas (LPG), natural gas (methane, CH4), gas to liquid (GTL), liquefied natural gas (LNG), and compressed natural gas (CNG). This topic will discuss economics, state and chemistry, modes of transportation, production sources, global consumption/production, and utilization of gaseous fuels.