StealthGas Inc. (StealthGas) owns a fleet of liquefied petroleum gas (LPG) carriers providing international seaborne transportation services to LPG producers and users, as well as product carriers chartered to oil producers and refiners. In the LPG sector, the Company carries various petroleum gas products in liquefied form, including propane, butane, butadiene, isopropane, propylene and vinyl chloride monomer, which are all byproducts of the production of crude oil and natural gas. In October 2012, the Company purchased four building liquified petroleum gas (LPG) carriers from an affiliated company.