Gas chartering, also known as gas shipping or gas transportation, refers to the process of hiring or leasing vessels specifically designed for the transportation of liquefied natural gas (LNG) or liquefied petroleum gas (LPG). It is a crucial aspect of the energy industry, as it enables the safe and efficient movement of these valuable gases from production facilities to consumer markets around the world.

Gas chartering involves the ship-owner, who owns the specialized gas carrier, and the charterer, who requires the transportation services for the gas cargo. The charterer could be an energy company, a gas trader, or a shipping company acting on behalf of a client. The terms and conditions of the charter are typically defined by a charter party agreement, which outlines the rights, responsibilities, and obligations of both parties.