Fuel gas is a type of gas used primarily for heating, cooking, and powering engines. It is produced from various sources, including natural gas, propane, and biogas. Fuel gas is typically delivered through pipelines or stored in tanks, making it a convenient energy source for homes and industries. The most common form of fuel gas is natural gas, which is mainly composed of methane. Other types include propane, often used in rural areas, and biogas, produced from organic materials. These gases are valued for their efficiency and lower emissions compared to other fossil fuels.