Oil prices experienced a significant drop on Tuesday, falling below $80 a barrel for the first time since March. This decline follows a preliminary agreement between the United States and Iran, signaling a potential reopening of the Strait of Hormuz. The price of a barrel of North Sea oil decreased by approximately 4% overnight. The falling oil prices contributed to a downturn in the Oslo Stock Exchange, which closed with a 0.47% decrease, ending the day at 1951.27 points. Analysts attribute the price drop to increased expectations of oil supply due to the US-Iran agreement. The agreement’s details remain under negotiation, but the initial response has demonstrably impacted global oil markets. This price shift could influence energy costs and economic forecasts.