The Islamabad talks collapsed after 21 hours of negotiation. Trump ordered a naval blockade of all Iranian ports. The ceasefire-to-blockade reversal has invalidated every scenario in our April 8 forecast within 120 hours. The pessimistic case is now the base case.
Source: NYMEX daily settlement · Dated Brent physical (Platts) remained $30 above futures throughout, closing at $124.68 on April 8
The highest-level direct US-Iran engagement since 1979 began at Islamabad's Serena Hotel on April 11. VP Vance led a 300-member US delegation against Iran's 70-member team. After 21 continuous hours, talks collapsed on April 12 over four non-negotiable demands.
Complete cessation of enrichment programs and removal of all centrifuges.
Ship out all highly enriched uranium under international verification.
End all financial and material support for Hamas, Hezbollah, and Houthis.
Full, unconditional reopening of the Strait with no transit fees or coordination requirements.
Trump's post-collapse response was swift: a US Navy blockade of all Iranian ports beginning 10 a.m. ET Monday, April 13. CENTCOM will target all ships entering or exiting Iranian ports on the Arabian Gulf and Gulf of Oman, plus interdiction of any vessel that paid Iran's $2M toll. The ceasefire technically holds — no direct kinetic strikes have resumed — but a naval blockade is functionally an act of war under international law.
Comoros-registered shadow-fleet vessel defied the blockade and passed through. A sanctioned ship testing US resolve.
Botswana-registered vessel turned back 41 minutes after the blockade deadline. The line is drawn, but not yet enforced uniformly.
"The blockade introduces a new variable — potential naval confrontation — that did not exist in the April 8 scenario framework."
— AssessmentThe IEA now characterizes the crisis as ~13 million barrels per day shuttered — larger than 1973 and 1979 combined. The EIA projects Gulf shut-ins peaking at 9.1M b/d in April. Forty-plus energy assets across nine countries remain severely damaged.
Severity scores synthesize CNN, NBC, Al Jazeera, Reuters, Bloomberg, S&P Global, Kpler, TankerTrackers, Critical Threats / ISW reporting and OSINT verification. Uncertainty reflects discrepancies between Iranian state media, IDF/CENTCOM, and independent observers.
The EIA's April STEO, completed April 6, assumed conflict does not persist past April and Hormuz gradually resumes. Both assumptions are now invalid. The 9.1M b/d shut-in figure likely underestimates reality given the IEA's 13M b/d estimate. The May figure (6.7M b/d) should be revised upward to 8–9M b/d given the blockade and failed talks.
"Oil prices don't yet reflect the severity of the crisis."
— Fatih Birol, IEA Director, Atlantic Council, April 13The April 8 price trough ($94 WTI / $95 Brent) now appears to be the floor of the optimistic scenario, not the new baseline. The blockade has re-established $100+ as the operating range. All price forecasts revised upward by $8–15/bbl across all scenarios. Recovery timelines extended by 4–8 weeks.
Bands represent full scenario range; solid lines are central tendency. Original April 8 methodology revised: scenarios re-weighted 10/45/45. All price decks shifted upward $8–15/bbl. EIA STEO assumptions (conflict ends in April, gradual Hormuz reopen) now invalidated by blockade.
National gasoline has stabilized near $4.13 — but that masks vast regional disparity. California at $5.89 is a refinery closure away from $7+. Diesel at $5.65 nationally has barely budged. The blockade locks in elevated prices that the ceasefire was supposed to unwind.
USC analysis projects California gasoline could reach $7.35–$8.44/gal by late 2026 under stress scenarios. Just three companies will control more than 90% of California's refining capacity once Valero Benicia closes this month.
Despite the ceasefire, Hormuz has not meaningfully reopened. Only 22 vessels exited with AIS on between the ceasefire and April 11 — versus a pre-war average of ~135 per day. Only 2 oil or gas tankers transited in the first two days. Traffic peaked at 17 on April 11, then collapsed again as talks failed. The naval blockade now prevents any normalization.
All original restoration timelines must be extended by 4–8 weeks minimum.
"The Strait of Hormuz is not open. Access is being restricted, conditioned and controlled."
— Sultan Al Jaber, ADNOC CEO, April 9March CPI surged +0.9% month-over-month — driven by a record +21.2% monthly gasoline spike, the largest since 1967. Consumer sentiment crashed to an all-time low of 47.6, below the 1980 energy crisis. Moody's recession probability sits near 49%. Goldman pushed its first rate cut to September.
Core CPI came in below expectations at +0.2% m/m, giving the Fed cover to "look through" the energy spike — for now. But the fertilizer crisis is the second-round effect the Fed cannot ignore: 30% of global urea trade originates from Hormuz-constrained countries. The Fertilizer Institute predicts US farmers will be short ~2 million tons of urea this planting season. The IMF warns 45 million additional people face hunger risk globally. This food-price inflation wave arrives in H2 2026 — exactly when winter heating costs compound.
The two-week window ends. Without extension or new framework, the legal basis for the quasi-stable equilibrium vanishes. Blockade, mine-clearing, and Iranian military posture all face a decision point simultaneously.
March PPI, EIA Monthly Oil Statistics, and the gasoline/diesel update with PADD-level data for the week of April 7. First real post-ceasefire price data at the pump.
First full post-ceasefire inventory data (week ending April 10). Will show whether SPR releases are building commercial stocks or being consumed immediately.
Next scheduled output decision. Current increases of ~400 kb/d total are a fraction of 9.1M b/d shut-in. Will OPEC+ accelerate, or continue capitalizing on elevated prices?
What cannot be undone:
A second tranche of 8.48M barrels released April 12. Post-release SPR falls to ~243 Mb — lowest since 1982. The 200 Mb refill creates a $60–70 floor under WTI for 12–24 months.
Ras Laffan trains 4 and 6 are destroyed — 12.8 mtpa gone for 3–5 years due to turbine delivery times. QatarEnergy force majeure on contracts with 4 countries for up to 5 years.
A naval blockade under international law. Iran's defense minister declared armed forces on "maximum combat alert." France announced a "peaceful multinational mission" to restore navigation.
The ceasefire-to-blockade whipsaw — WTI from $113 to $94 to $104 in five days — destroyed the narrative that ceasefire equals resolution. Markets will not price hope as cheaply again.
The ceasefire bought time. The blockade spent it.
— Bottom line · April 13, 2026