Shell has added its weight to the move to LNG fuelling, signing up to the charter of two barge newbuildings powered entirely by the product.
The 110-metre long vessels will be contracted by Interstream Barging and built at Peters Shipyards in Kampen, the Netherlands.
The units (illustrated), which will go on charter to Shell from 2013, feature a bridge at the front.
This enables better trim, more efficient movement through water and the potential for a higher level of safety, Shell said.