It's been declining for decades, due to renewable and control of oil fields elsewhere by Arab US Russia, apparently it goes via the international market so in theory if it were nationalised it could enter our immediate market and supply the UK, meaning we're more energy secure and bills aren't affected to the extent they currently are by outside forces. I believe several European countries do this don't quote me but Norway , Iceland etc. power for the people plus jobs and energy security, it's only big business that doesn't want it . BP made ten billion in profits while we were struggling to p