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Few developments in 2026 have repriced a global asset class as quickly as the Islamabad Memorandum of Understanding between the United States and Iran. For a financial-services audience, the episode is less a geopolitical narrative than a case study in how a single maritime chokepoint transmits into currencies, current accounts and inflation forecasts — and how conditional that transmission remains.

India imports the overwhelming majority of its crude, so Hormuz risk transmits directly into the current account, the rupee, corporate input costs and the inflation path the RBI must forecast. The Monetary Policy Committee explicitly cited the West Asia conflict and disrupted trade routes in its August statement.

The pricing insight is the durable one: roughly the same physical volume is flowing through the Strait today as during the truce, yet crude is materially more expensive. The risk premium is now a function of diplomatic credibility, not supply alone.

For portfolio and product teams, frameworks that leave the core dispute unresolved — here, the nuclear question and the legal status of the Strait — are better priced as options than as settlements.

The conflict that opened with US and Israeli air strikes on Iran in late February 2026 severely disrupted traffic through the Strait of Hormuz, the narrow sea lane that in normal conditions carries close to a fifth of the world’s oil supply. Brent crude settled around $94 a barrel by 9 March — roughly 50% above where it began the year and its highest since September 2023 — and briefly crossed $100. The US Energy Information Administration lifted its 2026 Brent forecast from $58 to $79 a barrel in a single monthly revision, an unusually large move that captures how fast the supply picture changed.

On 15 June the two sides announced a 14-point framework, and on 17 June it was signed by President Trump and President Pezeshkian. Pakistan was the principal broker, with Qatar, Saudi Arabia, Turkey and Egypt facilitating. The core terms were:

• An immediate and permanent end to military operations on all fronts, including Lebanon.

• Permission for Iran to resume exporting crude and petroleum products as soon as the memorandum was signed.

• A best-efforts commitment by Iran to allow safe passage of commercial vessels through the Persian Gulf for 60 days at no charge.

• A reconstruction and economic development plan for Iran worth at least $300 billion, to be developed with regional partners.

• An affirmation by Iran that it would not procure or develop nuclear weapons, with enriched material to be down-blended domestically under IAEA supervision.

• A 60-day window to negotiate a final agreement, under which sanctions would be terminated on an agreed schedule.

The US Treasury’s Office of Foreign Assets Control (OFAC) gave the energy provisions practical effect through General License X, authorising Iranian energy transactions through 21 August 2026. Markets read this as genuine supply relief and prices eased.

The framework did not survive its own negotiating window. Israel had already made clear it did not regard itself as bound by the ceasefire and would preserve freedom of action. Technical talks opened at Lake Lucerne in Switzerland on 21 June, and on 28 June the two sides agreed to halt an exchange of attacks. But on 8 July, following Iranian attacks on three commercial ships — including Qatari and Saudi tankers — Washington launched fresh strikes and the US President declared the memorandum over, describing further negotiation as unproductive. OFAC had already revoked General License X on 7 July, replacing it with a short wind-down authorisation.

Low-intensity conflict has continued intermittently since. By 10 August, Tehran’s stated position was that the Strait would not fully reopen while the US naval blockade remained, and Iran opened bilateral talks with Oman on shipping arrangements. Over the first weekend of September, US forces struck three Iranian tankers while the Islamic Revolutionary Guard Corps claimed strikes on six vessels; Saudi Aramco’s Jazan facilities were hit again on 7 September with limited damage.

Crude was trading near $92 a barrel on 8 September — up roughly 12% over the month and around 47% year on year. The US Strategic Petroleum Reserve has fallen below 300 million barrels, its lowest level since January 1983. Yet approximately 7 million barrels a day of crude and refined products continue to move through the Strait.

Content in this edition was compiled from publicly available reporting and primary institutional material published between June and early September 2026, and cross-referenced across outlets before drafting.