Environmental activists in the UK have disrupted high profile sporting events in an effort to persuade the government to stop oil development. How would stopping oil production impact those countries around the world with economies dependent on oil? Tanya Beckett explores the history of oil, the implications of the Ukraine war for its price, how countries like Nigeria and Norway are dependent on oil revenues, and the challenges facing new oil producers in the global south as they face international efforts to limit new oil development in order to meet international climate targets. Presenter Tanya Beckett Producer Phil Reevell Researcher Matt Toulson Editor Tara McDermott Technical producer Gareth Jones (Industrial offshore oil rig platform on the North Seacoast, UK. Credit Getty images)