Iran-US Oman Round 4 Concluded: What 3+ Hours of 'Difficult but Constructive' Talks Actually Produced

# Iran-US Oman Round 4 Concluded: What 3+ Hours of "Difficult but Constructive" Talks Actually Produced

> **Quick answer:** The fourth round of Iran-US nuclear talks ended May 11, 2026 in Muscat after more than three hours. Both sides said "difficult but constructive." Omani FM Badr al-Busaidi added "useful and original ideas reflecting a shared wish to reach an honorable agreement." No deal. But the framework is taking shape: a 14-point MOU, an enrichment moratorium negotiating between 5 and 20 years with 12-15 as the likely landing zone, Hormuz normalization, and performance-based sanctions relief. The Trump-Xi summit on May 14 is the implied external clock.

The Iran-US nuclear talks Round 4 in Oman is over — and both sides kept the talks alive. On May 11, 2026, Iranian Foreign Minister Abbas Araghchi and U.S. Mideast envoy Steve Witkoff met for over three hours in Muscat in indirect, shuttle-mediated negotiations. What they produced was not an agreement. What they produced was something harder to achieve in this diplomatic environment: a shared decision to keep going, with a deal framework now detailed enough to track specific gaps.

> **Disclaimer:** This article is for informational purposes only and does not constitute financial advice. Consult a qualified financial advisor for personal financial decisions.

## What Round 4 Actually Concluded — The Verified Facts

Round 4 lasted more than three hours in Muscat, Oman's capital, on May 11, 2026. The format was indirect: Omani Foreign Minister Badr al-Busaidi shuttled between delegations rather than facilitating direct Araghchi-Witkoff dialogue. This is the same shuttle structure used in rounds one through three.