Summary
The Islamabad peace talks between the US and Iran collapsed April 11-12 after more than 21 hours of negotiation. VP JD Vance, Steve Witkoff, and Jared Kushner left Pakistan without agreement. On April 13, the US began a naval blockade of Iran. Iran briefly said Hormuz was “fully open” on April 17, then closed it again on April 18 after the US refused to lift the blockade. The two-week ceasefire that looked fragile in Episode 2 has fully fractured.
Timeline
- April 10 - Pakistan PM Sharif hosts US and Iranian delegations in Islamabad
- April 11 - 21+ hours of marathon negotiation
- April 12 - Talks collapse Sunday morning. Vance leaves Pakistan
- April 12 - Trump threatens “full naval blockade”
- April 13, 10am EDT - US naval blockade of Iran begins (CENTCOM announcement)
- April 14 - Washington Post: blockade has turned back 6 merchant ships
- April 15 - CENTCOM says blockade “fully implemented,” signals diplomatic off-ramp
- April 16-17 - Iran’s FM Araghchi says Hormuz is “fully open to commercial traffic” during truce
- April 18 - Iran reverses: closes Hormuz again in response to US maintaining blockade
Sticking Points at Islamabad
Delegations agreed on most of a 10-point ceasefire framework but could not close on:
- Iran’s uranium enrichment program (US demanded full halt and facility dismantling)
- Retrieval of Iran’s highly enriched uranium stockpile
- Iran’s funding of allied militant groups
- Fully reopening the Strait of Hormuz without Iranian tolls on transit
Iran considered several of these US demands “red lines.”
Sources:
- US-Iran peace talks collapse - NPR
- U.S. and Iran Fail To Reach Deal on Ending War - Time
- Direct U.S.-Iran talks fail to reach resolution - Washington Post
- Islamabad Talks (Wikipedia)
- 2026 Iran war ceasefire - Wikipedia
- Officials Considering Second Round of U.S.-Iran Talks - Time
Conclusions
Episode 2’s central question - “does the ceasefire hold?” - has been answered: no. The April 8 Pakistan-brokered ceasefire lasted roughly four days before the negotiation that was supposed to make it permanent collapsed. Since then the US has moved from diplomatic pressure to direct naval action against Iranian shipping.
For the energy story, this means the Hormuz disruption is now baked in for the foreseeable future, not a temporary shock. Europe’s fuel crisis no longer has a near-term resolution. Qatar’s Ras Laffan restart work is starting in the middle of an active blockade. Every gas turbine, LNG project, and behind-the-meter data center deal announced in the last 60 days now sits inside a confirmed extended-supply-shock regime.
Our Thinking
The sticking points reveal the real shape of the conflict. This is not just about oil transit - it’s about enrichment and proxies. Those are multi-year structural issues, not two-week-ceasefire issues. Markets priced in a quick resolution on April 8 (Brent crashed to $94.75). They are now repricing to something longer.
The second-round talks signal (Time, April 14) suggests both sides want a diplomatic off-ramp even while escalating militarily. That pattern - escalate, then negotiate - will probably define the next several months. Each cycle produces another Brent price shock in both directions.
The case for oil staying above $100 through 2026 probably regains confidence now. The ceasefire that threatened it is gone.
Watch
- Second-round US-Iran talks (location/date TBD)
- Blockade duration - Trump suggested April 26 as a deadline for Iranian wellfield damage
- Russia and China position shifts - do they broker instead of Pakistan?
- Congressional authorization / War Powers debate
- Bab al-Mandeb escalation (Iran’s stated second chokepoint threat)