Navigator Holdings Ltd. owns and operates a fleet of gas carriers worldwide. It offers international seaborne transportation and regional distribution services of liquefied petroleum gas (LPG), petrochemical gases, and ammonia for energy companies, industrial users, and commodity traders. The company also offers dry docking services. As of December 31, 2012, it owned and operated a fleet of 12 semi-refrigerated gas carriers. The company is based in London, the United Kingdom.