# [FLASH] Reports: US ‘Blockade’ Near Iran and Houthi Grip on Bab el‑Mandeb Rattle Oil Flows *Friday, September 11, 2026 at 8:10 PM UTC — Hamer Intelligence Services Desk* **Detected**: 2026-09-11T20:10:28.003Z (1h ago) **Tags**: Oil, Shipping, MiddleEast, Iran, Yemen, Houthis, StraitOfHormuz, BabElMandeb **Sources**: OSINT **Permalink**: https://hamerintel.com/data/alerts/22233.md **Source**: https://hamerintel.com/summaries --- **Summary**: A reported US maritime blockade forcing 99 commercial ships to reroute near Iran, combined with claims that Yemen’s Houthis now fully control the Bab el‑Mandeb Strait, sharply raises the risk of a dual‑chokepoint crisis in the Gulf and Red Sea. With Saudi Arabia’s East–West pipeline already shut after drone strikes, energy markets and global shippers face tightening routes, higher costs, and a thinner margin for error. ## Detail By 19:22–20:00 UTC on 11 September, open‑source reports pointed to a three‑front squeeze on Middle East energy arteries that, if confirmed, would mark one of the sharpest escalations in years for oil and shipping risk. First, a report at 19:22 UTC stated that a "US blockade against Iran" has redirected 99 commercial vessels, escalating tensions around the Strait of Hormuz. Details are thin: there is no confirmation yet from US Central Command, the Pentagon, or major shipping lines, and the wording may conflate stepped‑up interdiction or inspection operations with a formal blockade. Nonetheless, a diversion of nearly 100 commercial ships in the approaches to Hormuz would be operationally significant, signalling an aggressive enforcement posture against Iranian traffic or cargo linked to Iran. Second, at 19:56 UTC, another report claimed that the Houthis have "fully captured the western coast of Yemen," gaining "full control of the Bab‑al‑Mandab Strait" and the ability to "manage" the chokepoint. This goes beyond prior assessments that the group held key island positions such as Mayun and had strong influence over adjacent shorelines. If they now effectively dominate the entire western littoral and can contest traffic from both coasts and nearby islands, their leverage over southbound Suez–Asia trade rises sharply. This claim needs corroboration via military mapping, satellite imagery, and coalition statements, but it is directionally consistent with recent Houthi advances and maritime attacks. These developments land on top of a confirmed blow to the region’s principal pipeline bypass. Multiple reports today, backed by US officials and the Saudi energy ministry, confirm that Saudi Arabia’s East–West crude pipeline has been shut after Houthi drone or projectile attacks on pumping stations between Riyadh and Medina. Satellite imagery reportedly shows damage and fires at several sites. This line normally moves crude from eastern fields to the Red Sea port of Yanbu, allowing exports to avoid Hormuz altogether. For people and firms that depend on stable sea lanes, the stakes are immediate. Crews and shipowners now face elevated risk both at the entrance to the Gulf and at the southern gateway to the Red Sea. Rerouting around the Cape of Good Hope adds 10–15 days to many Asia‑Europe voyages, raising fuel and charter costs and tightening vessel availability. Import‑dependent states in Europe and Asia must plan for higher landed crude and LNG prices just as northern‑hemisphere demand begins to seasonally rise. Strategically, an effective US maritime cordon around Iran, if confirmed, would be a de facto blockade of a regional power and could invite asymmetric response: more Houthi and proxy strikes on infrastructure, further harassment of commercial shipping, and attempts to disrupt Red Sea or Eastern Mediterranean lanes. Houthi consolidation on Yemen’s west coast and Bab el‑Mandeb would give Tehran‑aligned actors leverage over a second chokepoint that carries roughly 10–12% of global seaborne trade, including a significant share of oil and container flows between Europe and Asia. Markets will treat this as a classic supply‑route shock. The closure of the East–West pipeline alone removes an important bypass and forces more Saudi barrels back toward the Gulf side; pairing that with elevated Hormuz risk compresses options. If Bab el‑Mandeb becomes effectively weaponised, tankers and boxships may avoid the Red Sea, driving up freight rates and putting a floor under Brent. Gold and US Treasuries are likely to catch safe‑haven bids, while airlines, European utilities, and fuel‑sensitive industries could see margin pressure. In the next 24–48 hours, watch for: (1) formal US or allied statements clarifying the scope and legal basis of any maritime interdiction around Iran, and whether it constitutes a declared blockade; (2) satellite and naval reporting that confirms or refutes full Houthi control of the Yemeni western coast and their rules of engagement for Bab el‑Mandeb traffic; (3) Saudi Aramco and energy ministry guidance on the expected duration of the East–West pipeline shutdown and any diversion of flows; (4) insurance market moves, especially Joint War Committee designations expanding high‑risk areas; and (5) any retaliatory strikes, miscalculation, or direct contact between US and Iranian forces at sea. Any of these could turn a tightening corridor into a full‑blown shipping crisis. **MARKET IMPACT ASSESSMENT:** High immediate upside risk for crude (Brent, WTI), refined products, and tanker rates; supportive for gold and safe‑haven FX (USD, CHF) on escalation risk. EM FX and equities with high energy import bills are exposed to downside. Insurance premia for Gulf and Red Sea voyages likely to jump; risk repricing for shipping, defense, and energy equities.