On July 13, 2026, Iran announced it was suspending its commitments under the Islamabad Memorandum of Understanding, signed less than a month earlier on June 17. Tehran blamed repeated US violations of the ceasefire terms for the abrupt pullback.
The Islamabad MoU had been a rare diplomatic achievement brokered with Pakistani Prime Minister Shehbaz Sharif acting as mediator. The agreement, signed by US President Donald Trump and Iranian President Masoud Pezeshkian, covered 14 points including a ceasefire, sanctions relief, and talks on Iran’s nuclear program.
Impact on Energy and Markets
A key part of the deal focused on keeping the Strait of Hormuz open. This narrow passageway channels about 20% of the world’s oil supply, making its stability critical to global energy markets. Iran accused the US of enforcing a naval blockade and conducting military strikes in the strait, claims Washington has not confirmed.
Any disruption to tanker traffic through Hormuz quickly reverberates in oil prices and energy stocks, affecting broader market indexes due to oil’s role in transportation and production costs.
The MoU set a tight 60-day deadline for resolving sanctions and nuclear issues. However, these disputes have long resisted solutions despite numerous negotiations. Iran’s decision to halt the agreement highlights the fragility of diplomatic efforts in a region marked by decades of hostility.
