Oil prices plunged after Qatar said US-Iran negotiations had resumed, and the US treasury secretary suggested a deal could happen "today or tomorrow". These announcements eased concerns over crude supply disruptions that had sent prices soaring in recent months.

US treasury secretary says deal with Iran to reopen the Strait of Hormuz could happen soon

Oil prices plunged after Qatar said US-Iran negotiations had resumed, and the US treasury secretary suggested a deal could happen "today or tomorrow". These announcements eased…