B-class LNG carriers were built by Chantiers de l'Atlantique, France in 1972 to 1975.

[2] They served Gaz de France for around 14 years, the B-Class vessels were acquired and delivered to BST in December 1986.

Previously referred to as the G-class vessels chartered under Shell Tankers United Kingdom (STUK).

Four out of the seven BST vessels are manned by a fully Bruneian crew with the exception of senior management; a feat yet to be achieved but not impossible.

[3] All B-class vessels have an average cargo capacity of 75,000 m3 (470,000 bbl) and are certified with the 'Green Passport' for the safe carriage of all hazardous materials on board.