Key Takeaways
- Brent crude dropped approximately 2% to roughly $79 per barrel following Iranian claims of significant diplomatic advancement with Washington in Swiss negotiations
- Last week saw both major oil benchmarks decline nearly 10% amid growing expectations of a provisional peace agreement
- A 60-day diplomatic roadmap was established between Washington and Tehran, with ongoing technical discussions at Switzerland’s Bürgenstock resort
- The Strait of Hormuz faced another temporary closure over the weekend, with Iran citing Israeli actions in Lebanon as justification
- Market experts caution against excessive optimism, noting approximately 80 million barrels could flood markets if the strait reopens completely
Crude oil markets experienced downward pressure Monday following Tehran’s announcement that diplomatic negotiations with Washington in Switzerland yielded substantial advancement. Brent crude declined approximately 2% to around $79 per barrel, with West Texas Intermediate retreating to approximately $75.

Both benchmark contracts had previously declined nearly 10% during the prior week when news of a provisional peace agreement emerged. Monday’s decline extended that bearish momentum as market participants weighed the implications of potentially increased Iranian crude exports reaching international markets.
Iran’s Foreign Minister Abbas Araghchi publicly acknowledged meaningful advancement in the four-party diplomatic discussions. The negotiations are being facilitated by Qatar and Pakistan at Switzerland’s Bürgenstock resort.
Negotiators have established a 60-day diplomatic timeline aimed at reaching a comprehensive agreement. Technical-level discussions are scheduled to proceed throughout the current week.
Negotiation Framework and Scope
Diplomats addressed multiple critical issues including sanctions relief, maritime safety protocols, and establishing a structure for future discussions regarding Tehran’s nuclear activities. They additionally created a direct communication channel designed to maintain commercial shipping access through the Strait of Hormuz.
US Vice President JD Vance participated directly in the negotiations alongside high-ranking Iranian representatives. These meetings follow a memorandum of understanding that both nations formalized last week.
However, the diplomatic momentum encountered complications during the weekend. Tehran announced another closure of the Strait of Hormuz, referencing continuing Israeli military activities in Lebanon and claiming Washington failed to fulfill interim agreement obligations.
Despite the announced closure, substantial crude oil volumes continued transiting the waterway throughout the weekend. Chubb CEO Evan Greenberg indicated to Fox News that regional security conditions remain unpredictable.
President Donald Trump escalated rhetoric Sunday via social media. “Iran must immediately stop their highly paid PROXIES in Lebanon from causing trouble. If they don’t, we’ll hit Iran very hard again, just like we did last week, only harder!!!” he declared.
Escalation Threats Persist
Market participants responded to Trump’s statements by reincorporating geopolitical risk premiums into oil prices. ING market analysts cautioned that “moving towards a more permanent deal will be challenging, with very real risks of a flare-up in hostilities during the 60-day ceasefire.”
Vivek Dhar, a Commonwealth Bank of Australia analyst, suggested markets may be exhibiting excessive optimism regarding how quickly regional oil flows might normalize.
Persian Gulf petroleum producers are positioning for expanded production. Kuwait has withdrawn previously issued force majeure declarations, while Abu Dhabi National Oil Company instructed clients to resume cargo loading operations from Persian Gulf terminals.
Should the Hormuz passage reopen fully, market analysts project approximately 80 million barrels of stored crude could reach markets rapidly. This volume surge could overwhelm refining capacity, particularly given China’s currently subdued import demand despite being the world’s largest petroleum buyer.
Crude prices remain elevated compared to pre-conflict levels, though future price direction hinges on whether diplomatic efforts can sustain momentum in coming days.


