Houthis Seize Red Sea Port of Mocha, Tightening Grip on Saudi Arabia's Crude Export Route
The Mocha capture plants Houthi forces at the approach to Bab al-Mandeb, through which Saudi Arabia now routes more than 70% of its crude exports.
Yemen's Houthi forces seized the Red Sea port of Mocha on Thursday (2026-09-10), advancing to the approach of the Bab al-Mandeb Strait and placing direct military pressure on the route through which Saudi Arabia now channels most of its oil exports. Foreign Policy reported that Mocha's capture brings Tehran closer to claiming control over a second major waterway, and it comes as Bab al-Mandeb remains one of the last functioning exits for Saudi crude after Iran closed the Strait of Hormuz.5,4
The Bab al-Mandeb is 12 miles wide and carries 6.2 million barrels of oil and refined products a day, along with roughly 80% of the LNG shipped north toward Europe, according to oilprice.com. Disrupting it would constrict one of the few arteries still available for Saudi production and for the tankers supplying Middle Eastern crude to Asian and European buyers.5
Saudi Arabia's position at Yanbu explains the specific concern. Since Hormuz closed, Riyadh has rerouted more than 70% of its crude exports through that Red Sea port, leaving Bab al-Mandeb as the unavoidable chokepoint for the kingdom's output, oilprice.com reported.5,2
ICE Brent front-month crude closed Friday (2026-09-11) off 2.8% on the day but still posted its biggest weekly advance since July, according to Rigzone. The benchmark stood at $104.32 a barrel as of Saturday morning (2026-09-12) UTC, with markets closed for the weekend. Brent is up more than 70% this year, though it remains well below the wartime peak of just above $126 a barrel reached in April.6
Positioning data from Thursday (2026-09-10) shows trend-following commodity trading advisers had flipped to 100% maximum long in Brent, exhausting their available buying capacity, according to Kpler. That removes one source of demand that has driven prices higher; further gains now depend more on physical tightness than on systematic flows entering the market.6
Saudi crude exports through Yanbu rose to a record 4.19 million barrels a day last month, and that volume has so far cushioned the global supply impact of losing the Hormuz route, Rigzone reported. But the route exposes those tankers directly to Houthi forces, who ran a sustained campaign against Red Sea shipping through 2024.3
That campaign's cost was significant. Houthi attacks made Red Sea waters effectively unsafe for commercial shipping, and Suez Canal revenue fell more than 60% that year, costing Egypt an estimated $7 billion in lost fees, according to oilprice.com. Tanker operators shifted to Cape of Good Hope detours at considerable expense. A renewed interdiction campaign targeting Yanbu-bound traffic would cut off Saudi Arabia's main remaining export channel rather than simply divert it.5
The Mocha capture is not the only pressure point. Iran instructed the Houthis in July (2026-07) to prepare to disrupt the Red Sea oil route if the United States attacked Iranian power infrastructure, with missiles and drones reportedly deployed near Bab al-Mandeb pending an IRGC order, oilprice.com reported. Disruption of the strait can therefore be triggered by geopolitical decisions in Washington or Tehran independent of Houthi battlefield progress in Yemen.2,1
The Saudi-led coalition vowed on July 20 (2026-07-20) to protect commercial ships from Houthi interference. But Mocha's capture has shifted the tactical geometry, and protecting the northern approach to the strait is now materially harder than it was before Thursday (2026-09-10).3,4
Saudi Red Sea exports at 4.19 million barrels a day are the buffer between current price levels and a sharper supply shock. A sustained Houthi interdiction campaign along that route — whether launched from the Mocha position or triggered by Iran's conditional order — would test how much of Brent's 70% year-to-date advance has already priced in disruption risk, and how much further upside the market would assign to a direct hit on Saudi export capacity.3,6,2