Oil prices surged by more than 1% on Monday following a significant diplomatic setback as US President Donald Trump rejected a peace proposal from Iran aimed at de-escalating tensions in the critical Strait of Hormuz. This rejection immediately influenced global markets, with Brent crude futures rising by $1.32 to reach $105.64 per barrel, while US West Texas Intermediate (WTI) crude climbed 70 cents to settle at $93.11 per barrel. The stalemate underscores the fragile nature of Middle Eastern geopolitics and the immediate impact of diplomatic discourse on energy valuation. Market analysts have pointed to a combination of factors sustaining these high prices, including ongoing security threats from Houthi rebels. Attacks targeting Saudi Arabian interests continue to pose a risk to regional supply flows, keeping traders on edge despite a recent rebound in production. Interestingly, crude oil exports from key Middle Eastern producers reached a peak of 12.8 million barrels per day in September. This increase was largely attributed to a temporary surge in shipments through the Strait of Hormuz, which had previously faced significant disruptions, showing that production capacity remains robust even as political stability wavers. Beyond the immediate US-Iran conflict, the market is grappling with domestic policy concerns in the United States that could further tighten global supply. There are persistent fears regarding a potential US ban on diesel exports, a move that analysts suggest has previously put downward pressure on WTI relative to Brent but now adds to overall market uncertainty. As the stalemate persists, the balance between high regional production levels and the constant threat of geopolitical escalation will likely dictate price volatility in the coming weeks. The industry now looks to see if further diplomatic channels will open or if regional hostilities will lead to more direct supply interruptions.