Strait of Hormuz and Bab el‑Mandeb: Stalled U.S.–Iran Talks Keep Energy Chokepoints Partially Choked

Commercial traffic through the Strait of Hormuz and Bab el‑Mandeb remains well below pre‑war norms as stalled U.S.–Iran peace negotiations and renewed political tension over control of the waterways keep ship operators cautious. Crude, products and LPG flows are being rerouted or delayed, sustaining risk premiums along key energy routes even as day‑to‑day ship counts fluctuate.

Fresh political frictions — including U.S. threats against Oman as it works with Iran on a shipping management deal and Iranian warnings of further escalation if diplomacy fails — are reinforcing uncertainty around future access to the straits. This is anchoring elevated volatility in oil benchmarks and freight, and complicating planning for refiners and traders exposed to Gulf and Red Sea supply.

Introduction

Shipping activity through the Strait of Hormuz, the world’s most important oil transit chokepoint, remains severely constrained amid the ongoing 2026 Iran war and a U.S. naval blockade of Iranian ports. Iran has restricted transits and threatened further action if an interim peace deal is not fully implemented, while Washington insists the strait is "open and operating" despite sharply reduced traffic.

Diplomatic efforts to restore normal flows have stalled. A 60‑day window for a U.S.–Iran understanding to reopen Hormuz is expiring with little progress, and Tehran is now warning it could go on the offensive in the waterway if talks fail. Parallel tensions are visible at the Bab el‑Mandeb Strait, where Iran‑aligned Houthi forces have previously threatened Red Sea shipping. Together, the two chokepoints shape trade for crude, products, LPG, grains and containerised foods between the Atlantic, Mediterranean and Asia.

Immediate Market Impact

The combination of reduced Hormuz transits and inconsistent Bab el‑Mandeb flows is tightening effective seaborne supply from the Gulf and lengthening voyage times. Before the conflict, roughly a quarter of global seaborne oil and a fifth of LNG passed through Hormuz; many of those flows remain curtailed or rerouted around the Cape of Good Hope at higher freight and insurance cost.

Spot crude benchmarks have been trading with a persistent geopolitical risk premium, while time spreads reflect concerns about prompt supply from the Middle East. Recent headlines signalling that Iran may escalate in Hormuz and potentially extend pressure to other routes, such as Suez via Houthi allies, have reinforced intraday volatility in oil and product markets.

Supply Chain Disruptions

Ship‑tracking data over recent days show Hormuz transits in the single digits on some days, far below pre‑war norms of over 100 daily crossings, and still below short‑term averages even when activity improves slightly. Operators are reporting limited tanker and gas carrier movements, reliance on "dark" transits with AIS turned off, and selective use of an emerging Iran–Oman corridor proposal that remains politically contested.

At Bab el‑Mandeb, traffic has oscillated as owners continually reassess missile and drone risks in the Red Sea and Gulf of Aden. Earlier spikes in crossings reflected diversions away from Hormuz, but fresh projectile incidents in the wider region and continued threats against shipping near Yemen have pushed some VLCCs and product tankers to route around Africa instead.

For commodity supply chains, this means longer sailing times from Gulf exporters to European and Atlantic Basin buyers, irregular arrival patterns at Mediterranean and Northwest European refineries, and greater uncertainty for just‑in‑time deliveries of fuels and LPG into markets west of Suez.

Commodities Potentially Affected

• Crude oil: Reduced Hormuz and volatile Bab el‑Mandeb flows limit loadings from Gulf producers and complicate deliveries to Europe and Asia, sustaining a geopolitical premium in Brent and Dubai benchmarks.
• Refined products (diesel, gasoline, jet): Product tankers face longer routes and higher war risk premia, particularly for diesel moving from the Gulf to Europe via Red Sea lanes or Cape diversions, tightening regional balances.
• LPG (propane, butane): Restricted LPG carrier traffic through Hormuz raises costs and risks for Asian and African importers dependent on Gulf supply, with potential for regional price dislocations.
• LNG: While some LNG has been rerouted or deferred, the persistent threat environment in Hormuz underpins anxiety over winter‑season availability and shipping costs for Asia and Europe.
• Dry bulk (grains, sugar, feeds): Bulk carriers transiting Bab el‑Mandeb to and from the Black Sea and Atlantic face higher insurance and potential delays, affecting grain and sugar flows to the Middle East and South Asia.

Regional Trade Implications

Middle Eastern exporters are increasingly redirecting flows toward Asian buyers willing to accept higher security risks and longer routes, while European and Mediterranean refiners lean more heavily on Atlantic Basin and West African grades. Some Gulf producers have increased volumes eastward via alternative routes and swaps, but capacity is limited relative to pre‑crisis Hormuz throughput.

Countries with diversified import portfolios and ample storage — including China, India and major OECD consumers — are better placed to absorb disruptions. Conversely, import‑dependent states in the Middle East, East Africa and South Asia that rely on Red Sea and Gulf supply chains face higher landed costs and greater exposure to spot volatility.

Oman’s efforts to work with Iran on a managed shipping regime through Hormuz could, if successful, stabilise some flows, but U.S. opposition and recent threats against Muscat highlight the political risk around any such arrangement. Until a durable deal is reached, insurers and charterers are likely to treat both Hormuz and Bab el‑Mandeb as contested corridors rather than fully open routes.

Market Outlook

In the short term, markets are likely to remain headline‑driven. Any sign of renewed talks or a credible interim transit arrangement could trigger sharp pullbacks in crude and product prices, while further incidents or explicit moves by Iran to "go on the offensive" in Hormuz or via proxies around the Red Sea would support another leg higher in risk premiums.

Traders will focus on ship‑tracking data for confirmed tanker and gas carrier transits, insurance pricing for Red Sea and Gulf routes, and policy signals from Washington, Tehran and Muscat. Positioning is likely to favour optionality — diversified sourcing, flexible routing clauses, and use of storage — to manage the risk of sudden closures or escalations.

CMB Market Insight

The latest policy and diplomatic developments underscore that control over Hormuz and Bab el‑Mandeb has become a central lever in the broader U.S.–Iran confrontation. For commodity markets, this translates into structurally higher logistics costs, fatter shipping risk premia and more pronounced basis volatility across regions.

Until a verifiable and politically sustainable transit framework is established, participants should treat current conditions not as a temporary disruption but as a new operating baseline. Strategic priorities for traders, refiners and importers include diversifying supply routes, embedding routing flexibility into contracts, and maintaining contingency plans for further chokepoint stress that could abruptly reprice crude, products, gas and key agricultural flows.