The Bab al-Mandeb Strait Disruption Threatens Global Energy Flows and Supply Chains
As markets process economic data, the Bab al-Mandeb Strait has emerged as a critical maritime bottleneck. Captures of strategic locations by Yemen’s Houthi rebels have choked off millions of barrels of daily oil exports, forcing vessels into costly, month-long detours around Africa and driving up international fuel prices.
The Bottom Line
- Supply Chokepoint: Saudi crude oil flows through the Bab al-Mandeb strait collapsed from peak volumes of roughly 3 million barrels per day down to approximately 400,000 barrels per day in August, according to Energy Aspects.
- Fuel Price Spikes: Global crude benchmarks Brent and WTI rose past $108 and $103 a barrel respectively, while U.S. diesel prices topped $6 a gallon for the first time, per AAA data.
- Extended Transit: Avoiding the Red Sea corridor forces oil tankers and cargo ships to take alternative routes around Africa’s Cape of Good Hope, adding roughly a month to transit times and inflating freight costs.
The Collapse of Red Sea Energy Arteries
The narrow waterway located at the mouth of the Red Sea between Yemen and Djibouti has historically provided an essential exit route for Middle Eastern oil. That lifeline is now severely compromised. Over recent weeks, Yemen’s Iran-backed Houthi rebels have tightened their grip on the shipping lane, capturing both the port city of Mocha and strategic Perim Island, according to Yemeni government sources.
This maritime chokepoint gained immense strategic value after the US-Iran war effectively shuttered the nearby Strait of Hormuz. Before that conflict, approximately 20 million barrels of oil transited Hormuz daily, representing about 20% of global supply. To bypass the closure, Saudi Arabia redirected crude through its East-to-West pipeline to the Red Sea port of Yanbu. Richard Bronze, co-founder of Energy Aspects, noted to CNN Business that Saudi crude exports exiting via Bab al-Mandeb fell sharply from a peak of 3 million barrels per day to roughly 400,000 barrels per day by August.
Rerouting Realities and Global Freight Inflation
Tankers avoiding the Bab al-Mandeb strait must navigate a far longer course to reach Asian and European markets. Rather than utilizing the Suez Canal, vessels are forced down the western coast of Africa, around its base, and across the Indian Ocean. This epic voyage adds about a month’s worth of transit time and pushes freight costs significantly higher.
“We’ve seen a lot of refineries in Asia going out and searching for alternatives, so they’re bidding up oil cargoes in other regions, and that is the big driver of why oil prices have been rising so sharply,” Richard Bronze explained to CNN Business.
Energy Information Administration (EIA), total crude and petroleum liquids transiting Bab El-Mandeb peaked at 9.3 million barrels per day in 2023 before dropping to roughly 4.1 million barrels per day in 2024 and remaining near 4.2 million barrels per day in Q1 2025.
| Period | Volume (Barrels per Day) | Primary Market Condition |
|---|---|---|
| 2020 | 5.7 million | Pre-crisis baseline tracking |
| 2023 | 9.3 million | Peak diversion volume following initial shifts |
| 2024 | 4.1 million | Contraction amid Houthi security threats |
| Q1 2025 | 4.2 million | Sustained restriction period |
Broader Macroeconomic Fallout and Industrial Pressures
Energy disruptions are directly bleeding into industrial supply chains. Crude oil is refined into diesel, the primary fuel powering heavy transport vehicles, freight trains, agricultural tractors, and commercial fleets globally. Data from AAA shows that U.S. diesel prices have climbed more than 50% since the onset of the conflict, surpassing $6 a gallon for the first time.
Johannes Rauball, senior crude analyst at Kpler, highlighted to CNN Business that a combination of Red Sea shipping disruptions, ongoing Saudi production cuts, and Ukrainian strikes on Russian energy infrastructure drove global crude prices past $100 a barrel. “With no quick resolution in sight and these disruptions set to persist, refiners are increasingly being pushed to secure additional crude, which is pushing crude prices higher,” Rauball stated.
Higher fuel expenses serve as a foundational driver for broader inflation metrics. As transportation and input costs compound, central banks face renewed pressure regarding interest rate adjustments, which ultimately translate into elevated borrowing costs for businesses and retail consumers alike.
Outlook for Maritime Security and Trade Routes
While the Bab El-Mandeb corridor experienced a temporary pause in militant activity following an October 2025 cease-fire, underlying geopolitical tensions ensure that energy and shipping markets remain highly reactive. Major shipping lines, including Maersk, continue to evaluate operational risks carefully as military coalitions and naval patrols navigate complex diplomatic and security responses to keep the trade artery open.
Disclaimer: The information provided in this article is for educational and informational purposes only and does not constitute financial advice.
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