Strait of Hormuz Monitor — 12 Aug 2026

READ — Openness * phase * velocity

• IS IT OPEN? Oil tests $90 on PERIPHERAL attacks + a stalled deal — but no fresh Hormuz-channel closure — The 12 Aug read: the escalation premium re-loaded, but the trigger sits OUTSIDE the Strait. Brent re-bid a fifth straight session to ~$89.8 (WTI ~$84.1) after a Houthi missile strike killed six on a vessel in BAB AL-MANDEB — a SEPARATE chokepoint, not Hormuz — and a US interdiction of a blockade-runner punctured the reopening narrative; GOLD ~$4,402 (a multi-week high — the ATH ~$5,590 was Jan). The Hormuz FLOW is unchanged and still a throttle (Kharg dark, ~6-10 vessels/day). NOT a fresh closure — and NOT a reopening: the deal is stalled-to-backward under a hardline SNSC, and even a signature, on the leaked terms, is a managed, tolled, US-excluded (and possibly un-insurable) corridor.
• TRANSITS + THROUGHPUT (dedicated 12 Aug re-search) — dark RE-SET to ~41% (crude 79%), ~7 mb/d, ~6-10 vessels/day — On a fresh re-search we RETIRE the 62% dark figure — it was an AXSMarine 14 Jul-6 Aug cumulative that overweights the very-high-dark opening days. The fresher recent-week/daily read is ~40-42% AIS-off all-traffic (Kpler week 27 Jul-2 Aug ~41%; Lloyd’s daily 10 Aug 4/10) — but crude STAYS very high at 79% dark (products ~50%). Throughput re-reads ~7 mb/d on the credible independent basis (discount the 9 mb/d claim and the stale 4.9 EIA Q2 average), ~6-10 transits/24h vs ~130 pre-war under naval escort — degraded/throttled, not shut. Kharg dark (zero VLCC loadings the first 10 days of August); no mines laid/detonated — the closure is blockade/escort-enforced. Renewed-blockade Day 30 (14 Jul anchor).
• HOW OPEN — implied ~33% SPOT / ~99% FORWARD; the price-implied and the physical CONVERGE near a third — The oil-decomposition model reads implied openness ~33% at Brent ~$89.8 (down from ~38% at ~$88 on 11 Aug, ~50% at ~$84 on 10 Aug) — the reopening premium fully unwound as the deal moved backward and the attacks re-loaded the premium. Notably the price-implied (~33%) and the fresh PHYSICAL read (~a third — ~7 mb/d of the ~20 mb/d norm) now CONVERGE: the market is no longer pricing a reopening the flow hasn’t delivered; it is pricing the deal-collapse + peripheral-attack risk on top of a genuine throttle. The 12m FORWARD (CO12 ~$74, ~99%) still prices near-full normalization — the curve says supply-shock, temporary.
• PHASE — HOLD Phase 2: the premium re-loaded, but no PHYSICAL Phase-1 trigger has fired — HOLD — Phase 2 (fragile, escalation-flavoured). The discipline is symmetric: we did not upgrade to Phase 3 on the near-deal optimism, and we do not tip Phase 1 (active closure) on a risk-premium spike whose trigger sits in a DIFFERENT chokepoint. What would tip it — a strike on Kharg/an export terminal, a VERIFIED mine or a tanker SUNK IN THE HORMUZ CHANNEL, the through-corridor cut to near-zero, or a Brent close decisively >$90-100 that HOLDS — has NOT fired: the fatal hit was in Bab al-Mandeb, Kharg is dark-but-not-struck, ~7 mb/d still moves, and Brent is testing-not-through $90 (prior peaks tagged $90 on 29 Jul and mean-reverted). A re-loaded premium is a WARNING, not a trigger. HOLD Phase 2.
• VELOCITY — the swing is DO THE ATTACKS MIGRATE INTO HORMUZ / ONTO KHARG, or does the deal turn transactable? — Two forces pull opposite ways into today’s CPI. AGAINST a reopening: the SNSC hardliner (Rezaei, ‘only our route’), Trump’s compensation/no-fee stance, the unresolved 5-7%-Iran / 3%-Oman fee, and — the new one — marine insurers refusing to cover payments to a sanctioned Iran (so even a signed deal may not be transactable), plus the fresh Bab al-Mandeb/interdiction attacks. FOR de-escalation: Iran’s >60% inflation still wants the off-ramp, and the 12m curve prices normalization. The Phase-1 line is specifically whether the attacks MIGRATE into the Hormuz channel or onto Kharg — that is the difference between a $90 stall and a run at $100. HOLD Phase 2 until it is signed-and-insurable, or until the corridor is physically hit.

OFFICIAL RECORD * SoH — Statements * decisions - as regards the Strait

• THE OVERNIGHT CATALYST (12 Aug) — attacks on shipping, but in BAB AL-MANDEB, not the Hormuz channel — The overnight climb is escalation-flavoured but peripheral to Hormuz. Yemen’s government accused Iran-aligned Houthis of killing SIX in a missile strike on a commercial vessel in BAB AL-MANDEB (two of the dead were security on the rescue) — the second chokepoint, not the Strait — and US CENTCOM disabled a Panama-flagged cargo vessel attempting to breach the blockade of Iranian ports. Reported (unverified): a Pakistani-flagged container ship struck in the Gulf of Oman, and Saudi Aramco’s 400kb/d Jazan refinery hit and shut to September. The read: rising hull attacks + interdictions punctured the deal-optimism that had capped prices — a risk-premium re-load, NOT a strike on the Hormuz corridor itself.
• THE DEAL — STALLED-TO-BACKWARD: unsigned, and now maybe UN-INSURABLE even if signed — The Iran-Oman corridor ‘understanding’ (~6 Aug, entry/exit routes + fees) remains UNSIGNED, unpublished and effectively stalled. The fee dispute is live (Iran 5-7% of cargo value, Oman ~3%, the US opposed to ANY fee), eight shipping-lobby groups are protesting — and, the new fault line, marine insurers will not cover payments to the sanctioned Iranian regime, so even a SIGNED deal may not be transactable. Iran (Araghchi) insists on no reopening without the US lifting the blockade first and is rejecting direct US talks. The off-ramp is intact on a 6-18 month horizon (Iran’s >60% inflation wants it) but the near-term probability just fell further. HOLD Phase 2 until a signed-and-insurable text + the Strait physically re-opens.
• IRAN’S HARDLINE SNSC — Rezaei: ‘Iran will not allow any shipments except on its stipulated route’ — The 10 Aug install of Mohsen Rezaei (IRGC commander 1981-97) as SNSC Secretary now has a policy voice: on state TV Rezaei said Iran ‘will not allow any shipments’ except on its own stipulated route — a hardline framing of the corridor as an Iran-controlled, tolled lane, not a free reopening. It is a regime-posture signal (hardliner ascendancy at the security apex), not instability — but it lowers the probability the SNSC ratifies US ‘free navigation’ terms, and it is why the reopening trade kept unwinding into the attacks.
• KHARG — the one clean closure trigger, still UNFIRED (terminal DARK since 31 Jul, not struck) — Kharg Island — ~90-96% of Iran’s crude exports — has zero VLCC loadings in the first 10 days of August (dark since 31 Jul) but has NOT been struck; floating storage has built to ~40mbbl (double July) as barrels strand. A dark terminal is the siege throttling Iran’s own exports; a STRUCK terminal is the corridor-level supply shock. You do not leave Kharg standing if the aim is to shut the Strait. Its survival remains the strongest single piece of evidence that this is a throttled siege, not a closure — the day Kharg is hit or a mine detonates in the lane is the day the Phase-1 call flips.
• WAR-RISK PREMIUMS EXTREME — 7.5-10% of hull value; a single VLCC transit can top $10m — The insurance market is pricing acute risk: Hormuz war-risk premiums run 7.5-10% of hull value (from 0.25-3% pre-war), so a single sensitive VLCC transit can exceed $10m; reinsurers are withdrawing capacity at short notice, and premiums are actuarially STICKY (they need 12-36 claims-free months to fall). That is the real friction throttling flow to a trickle even with the corridor nominally passable — and it is why ‘~7 mb/d’ coexists with a near-total collapse in Iranian export loadings. The premium is a tax on every hull, not a closure.
• DIPLOMACY — mixed US signals; no direct talks; the corridor negotiated solely via Oman — Washington is sending mixed signals — Trump demands Iranian compensation/reparations yet separately called a Hormuz toll ‘a beautiful thing’; Pakistan’s defence minister claims the sides are ‘close to some arrangement’ (unconfirmed by either principal). There are still NO direct US-Iran talks (Iran negotiates solely with Oman). The end-state the channel points to — a managed-corridor/fees regime from Iranian weakness — is intact on a 6-18 month horizon, but the near-term vector is HARDENING. Watch for a signed-and-insurable text (Phase-3 tell) or the attacks migrating onto Kharg/into the Strait (Phase-1 tell).

WHERE WE'VE COME FROM — Trajectory

• 2026-07-23/24 — The SECOND CHOKEPOINT + the $100 print: Houthis strike two Saudi tankers, Saudi pauses Red Sea oil; Brent touches ~$100.35 then eases to ~$97.3. Hormuz’s own flow held ~5 mb/d — a two-chokepoint premium, not a Hormuz shut-in. HOLD Phase 2.
• 2026-08-01/02 — The THAW REVERSES then a FRAMEWORK flips the vector: a fresh US strike wave + Iran’s retaliation onto Kuwait, then late Sunday Trump says the US AND Israel will CANCEL the attack ‘subject to a rapid DEAL’ centred on OPENING Hormuz. A framework, not a signed deal. HOLD Phase 2; vector to a Phase-3 path.
• 2026-08-05/06 — the reopening PRICED, then the deal STALLS — The framework repriced HARD (Brent to $78, a store equity record), then the Wed/Thu signature SLIPPED (Rubio ‘not finality’; a narrow Iran-Oman channel). Brent RE-BID +2.3% to $79.80. The Strait stayed shut (~2 transits/day). HOLD Phase 2 — the signature the swing.
• 2026-08-08 — a TANKER STRUCK during ‘final-stage’ talks — The IRGC strikes an ADNOC-linked tanker (Sat 8 Aug, no casualties) — the UAE calls it ‘piracy.’ A strike DURING talks: talks close while the war continues. Oil net-down on the week but firms Monday on the strike (Brent ~$84). HOLD Phase 2 — a tanker HIT, no sinking/Kharg/mine.
• 2026-08-10/11 — the deal MOVES BACKWARD; the war premium RE-BIDS — Trump rejects Iran’s reparations demand and counters that Iran pay the US ‘for roadside bombs’; Tehran installs hardliner Mohsen Rezaei at the SNSC. Deal-is-near optimism evaporates; Brent surges +4.7% to $88.06 (11 Aug). No new physical event — a DIPLOMATIC repricing. HOLD Phase 2.
• 2026-08-12 — the ESCALATION PREMIUM RE-LOADS; oil tests $90 — Fresh attacks puncture deal-optimism: a Houthi missile strike kills six in BAB AL-MANDEB (a separate chokepoint), a US interdiction of a blockade-runner. Brent re-bids a fifth straight session to ~$89.8 (+~12% over five sessions), gold ~$4,402. Dark RE-SET to ~41% (retiring the stale 62% cumulative), throughput re-read ~7 mb/d, Kharg dark. Testing-not-through $90; no Hormuz-channel trigger. HOLD Phase 2.

WHERE IT'S HEADED — Direction * accelerants * reversers

• DIRECTION — a re-loaded premium on peripheral attacks + a hardening deal; the coming days are migrate-or-de-escalate, into CPI — The 12 Aug climb re-loaded the escalation premium without a fresh Hormuz-channel event. The PHYSICAL corridor is a degraded throttle (~7 mb/d, ~6-10 vessels, Kharg dark), so HOLD Phase 2 — but the near-term vector is a Phase-1 RISK if the attacks migrate. The frame remains WHOSE CLOCK RUNS OUT FIRST: Iran’s >60% inflation + the bypass build-out drain its leverage, and the 12m curve (CO12 ~$74, ~99%) prices near-full normalization — which a deal simply pulls forward. The coming days’ swing: the attacks MIGRATE into the Hormuz channel / onto Kharg (Brent at $100, Phase-1 risk) or the deal turns transactable / the compensation spat cools (the premium bleeds), all layered against today’s CPI.
• TIP TO PHASE 1 (active closure) — A confirmed strike on an oil-export TERMINAL (Kharg), OR a MINE DETONATION / a tanker SUNK IN THE HORMUZ CHANNEL, OR the through-corridor cut to near-zero, OR a Brent close decisively through ~$90-100 that HOLDS. Any converts a throttled siege — or a peripheral-attack risk-premium spike — into a corridor supply-loss shock. Per the shifting-power tail, a declining Iran with a hardliner now at the security apex is the one most tempted to a use-it-or-lose-it slip — the tail is highest where the deal is hardening.
• PATH BACK TO PHASE 3 — A visible settlement-from-weakness signal: a signed-AND-INSURABLE text, a walk-back of the compensation spat, Tehran softening on the routes/tolls dispute via the (still-live) Muscat channel, with the blockade eased and the fleet clearing. This is the medium-term base case — but on a 6-18 month horizon as the leverage transfer completes, and it slipped further out on the 10-12 Aug hardening + the insurability wall.

SCENARIOS — Base * Bear * Bull

• BASE — the attacks stay PERIPHERAL; the premium holds then bleeds (throttle persists) — The attacks stay outside the Hormuz channel and the compensation spat cools over weeks: the war premium holds near $85-90 then bleeds as the Muscat channel re-firms, converging on the 12m ~$74. The Strait stays a degraded throttle (~7 mb/d) pending a signed-and-insurable text + mine-free clearing. HOLD Phase 2 — the off-ramp intact but slipped further out.
• BEAR — the attacks MIGRATE into Hormuz / onto Kharg (re-escalation → Phase 1) — A Kharg/terminal strike, a mine detonation or a tanker sunk IN THE STRAIT halts flow → Phase 1; Brent +$10-25 to $95-115, a genuine supply shock — the worse for landing alongside a sticky-core July CPI. The shifting-power tail (a declining Iran with a hardliner at the apex) keeps this live; the 10-12 Aug hardening + the insurability wall RAISED its near-term odds.
• BULL — a signed-and-insurable deal + the Strait RE-OPENS (fast normalization) — The spat proves tactical and the corridor becomes transactable: a signed text, insurers covered, the attack stood down, Hormuz reopened, mines (none laid) a non-issue — Phase 3→4. The premium bleeds out, Brent toward and below the forward (~$74), the fleet clears. Iran’s >60% inflation argues it wants the off-ramp; the 12m curve already prices it. Lower-odds after the 10-12 Aug hardening + the insurability wall, but the curve still leans this way over 12m.

Bottom line. HOLD — Phase 2; the ESCALATION PREMIUM RE-LOADS as fresh attacks on shipping puncture deal-optimism, and oil TESTS $90 — but it is a risk-premium + tightening-supply move, not a fresh Hormuz closure. The overnight catalyst is peripheral to the Strait: Yemen’s government says Houthis killed SIX in a missile strike on a vessel in BAB AL-MANDEB (a SEPARATE chokepoint), and US CENTCOM disabled a blockade-runner — layered on collapsed Iranian/Kharg loadings (~40mbbl floating storage, double July) and a hardline SNSC (Rezaei: ‘only our route’). Brent re-bid a FIFTH straight session to ~$89.8 (WTI ~$84.1, +~12% over five sessions) — TESTING $90 but NOT closed decisively above it and NOT held; GOLD ~$4,402 (a multi-week high — NOT a record; the ATH ~$5,590 was Jan). We RE-SET the dark share to ~41% (retiring the 62% AXSMarine cumulative that overweighted the high-dark opening days; crude STAYS 79% dark) and re-read throughput ~7 mb/d (~6-10 vessels/day, escorted), Kharg dark since 31 Jul, no mines. HOLD Phase 2 — NO Phase-1 trigger fired: no Kharg/terminal strike, no mine, no tanker SUNK in the Hormuz channel (the fatal hit was Bab al-Mandeb), and Brent is testing-not-through $90 (prior peaks tagged $90 on 29 Jul and mean-reverted). The swing: the attacks MIGRATE into Hormuz / onto Kharg (Brent at $100) vs a transactable deal — against today’s July CPI. The August oil spike is a FORWARD inflation risk; it is NOT in the July data. Forward (CO12 ~$74) still prices normalization.