Iran and US agree to halt war and reopen Strait of Hormuz, sending oil prices tumbling

The war that rattled global energy markets for nearly four months may finally have an off-ramp. Iran and the United States have reached a framework agreement to halt hostilities and reopen the Strait of Hormuz to commercial shipping, a development that immediately cratered oil prices and sent shockwaves through every asset class tied to energy.

Crude prices dropped more than 4% in Asian trading following the announcement, with intraday swings reaching as much as 9%. The Strait of Hormuz handles roughly 20% of the world’s oil and liquefied natural gas flows.

How we got here

The conflict traces back to February 28, 2026, when hostilities between Iran and the US escalated into open confrontation. By March, Iran had effectively closed the Strait of Hormuz. The US responded with a naval blockade of Iranian ports.

A temporary ceasefire was reached in April 2026, offering a brief reprieve, but it barely held.

In May 2026, a memorandum extended the truce for 60 days while both sides attempted to address the thornier issues: nuclear concerns, sanctions relief, and the mechanics of actually reopening the waterway. That memorandum laid the groundwork for the framework agreement announced this weekend.

President Trump took to Truth Social to mark the occasion: “Let the oil flow!” Switzerland is reportedly the likely venue for the formal signing, though the deal’s finer details, particularly around enforcement mechanisms and uranium handling, remain under negotiation.

The oil price impact and what it signals

One wrinkle worth watching: Iran has floated transit fees of up to $2 million per vessel passing through its waters. Whether that fee structure survives the final agreement will matter for the actual cost of moving oil through the region even after hostilities officially end.

Notably, the framework agreement aims for toll-free reopening of the Strait of Hormuz, which stands in tension with Iran’s stated transit fee proposal.

The crypto angle no one expected

The framework agreement has surfaced discussions about Iran potentially accepting cryptocurrency for toll payments on its waterways, with Bitcoin and Tether specifically mentioned as options.

Investors should also watch how this agreement interacts with existing sanctions infrastructure. If Iran gains access to crypto payment rails as part of the deal’s implementation, it raises questions about compliance frameworks, exchange exposure, and whether regulators will treat these transactions differently from standard sanctions-related crypto flows. The enforcement details that are still being negotiated could end up being more consequential for crypto markets than the headline ceasefire itself.

Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.