Clarkson Research Services has provided subscribers with a snapshot of the number of ships - both those on the market today and those under construction - that do not use conventional fuels. Notably, in terms of tonnage, more than a quarter of all ships being built today do not use petroleum derivatives for their propulsion, according to the new research.

LPG fueling can be done in a number of ways, from terminals, refineries, onshore trucks, small LPG transport vessels or barges. There are more than 1,000 LPG storage facilities around the world that can be used for LPG fueling, and more than 700 small LPG vessels that can be used for vessel fueling.