StealthGas Inc., together with its subsidiaries, provides seaborne transportation services to liquefied petroleum gas (LPG) producers and users internationally. It also provides crude oil and natural gas. The company's carriers carry various petroleum gas products in liquefied form, including propane, butane, butadiene, isopropane, propylene, and vinyl chloride monomer; and refined petroleum products, such as gasoline, diesel, fuel oil, and jet fuel, as well as edible oils and chemicals.