Bernard Looney, the fallen BP chief, always had a certain swagger about him. I’ve no idea whether he was unsafe in taxis, but he was certainly prone to unguarded remarks.

‘Not every barrel of oil in the world will get produced’ was a bold way, back in 2018, to introduce BP shareholders to the idea that the world’s energy giants will one day have to strand remaining carbon assets if they really intend to achieve net-zero targets.