Vitol ships 303m tons of crude oil and other products a year, with 200 vessels at sea at any one time. London-based Taylor, 61, is chief executive of the private company, which has 40 offices worldwide and saw profits rise in 2015 to $1.6bn. The Scotsman, who gave £359,000 to the official campaign for Britain to remain in the EU and £154,500 to the Conservatives last year, helped to rescue Harris Tweed Hebrides in 2005. Two years later he and his wife Tina set up the Taylor Family Foundation, which supports charities focusing on children and young people. Taylor chairs the board of trustees of the Royal Opera House.