Just come across this site after googling BP Tankers.
Served from 1958-64 with BP. Sailed on Glory, Beacon, Birch, Patriot, Queen, Gannet, Clyde Guardian, Renown & Trust.
Gannet was my first ship as uncertificated 3/O. Got my 2nd mate's ticket & stayed for a further 2 years before leaving for another career. Did our paths ever cross? Hope you weren't on the Crown when she had an explosive 'happening' at Umm Said. If you want pics of the Glory & Gannet I can scan them to you.