BP’s ‘underlying’ first-quarter profit of $6.2 billion, compared with $2.6 billion in the first quarter of 2021, was a direct reflection of the surge in global energy prices. Coming 48 hours before polling day, it also looked like a gift-wrapped on-time delivery for Sir Keir Starmer and his claim that a windfall tax on ‘excess’ profits of North Sea oil and gas extractors would knock £600 off the energy bills of ‘those who need it most’.