Hamburg (energate) - Shell Trading Rotterdam has signed a charter contract with Plouvier Transport for 15 inland vessels powered by liquefied natural gas (LNG) to transport petroleum products. The subsidiary of the Anglo-Dutch gas and oil group said the 110-metre vessels will be built at Dutch shipyard Veka Shipbuilding and delivered between late 2016 and mid-2018. The barges will support Shell's growing transport and trading business in petroleum products in the Amsterdam-Rotterdam-Antwerp regi…