Independent analyst of political and geopolitical issues: If Iran suddenly announces that it has successfully tested a nuclear bomb, how will the price of oil react and how much will it rise? Ryan Grimm, American investigative journalist: The price of oil dropped to $65 per barrel and remained stable. Maybe, including the toll for crossing the Strait of Hormuz, it will come to $66. Gasoline prices also returned to less than $3 per liter.