Cruiseship giant Carnival has signed an agreement with energy major Shell to supply LNG as bunkers to its two new LNG-fuelled ships in North America.

The two 180,000-gt cruiseships, which are due for delivery in 2020 and 2022, will be supplied by a new LNG bunker barge (LBB) unveiled by Shell on Tuesday.

The 5,200-passenger vessels will be fully powered by regasified LNG both while in port and at sea.