When the shipping industry began to take an interest in LNG, Rolls-Royce was one of the first with well-proven medium-speed engine technology.
https://www.youtube.com/watch?v=SOsuRB4TAug
At present, no less than 42 Bergen LNG-fuelled marine engines are in service with more on order.
LNG World News Staff, September 8, 2014; Image: Rolls-Royce