Abstract: Articulated tug and barge arrangements and methods for transportation, storage and regasification of liquefied natural gas (LNG) aboard barge units and for ballasting the barge units are provided. A barge unit includes a type C tank for the containment of LNG under pressure and a regasification unit fluidly coupled to the type C tank for regasification of LNG aboard the barge unit for offloading natural gas. The barge unit is adapted for loading LNG directly from a liquefaction plant, for transporting LNG by operatively coupling to a tug unit, as well as for storing LNG at a destined off board facility, and for fueling a floating power production facility. The arrangements and methods provide a transport terminal ring. The arrangements and methods provide for the circulation of seawater through the regasification unit and into ballast tanks for ballasting of the barge unit while offloading natural gas.