Houthi Blockade Cuts Bab el-Mandeb Traffic to Multi-Month Low as Saudi Tankers Go Dark
Only 11 tankers completed the Bab el-Mandeb transit on July 26 as Houthi attacks on Saudi oil infrastructure push Red Sea passage to its most constrained level since the conflict began.
Tanker traffic through the Bab el-Mandeb Strait slumped to a multi-month low on Sunday (2026-07-26), with only 11 vessels carrying commodities completing the transit after Houthi forces announced a blockade on Saudi oil shipments and struck Saudi oil infrastructure along the Red Sea coast, according to oilprice.com.6
Days before that, at least one Saudi crude tanker had slipped through the strait with its automatic identification system transponder switched off — a tactic that reduces targeting exposure but also removes the vessel from public tracking. MarineTraffic reported the dark transit during the week of July 20 (2026-07-20), with an analyst from the firm stating on Wednesday (2026-07-22) that "the Bab el-Mandeb risk picture is deteriorating." Vessel owners are now weighing continued dark transits against the cost and time penalty of rerouting around the Cape of Good Hope.5,4
The strait carries roughly 10% of global seaborne trade, including close to 8% of the world's LNG supply moving toward European terminals and Asian regas facilities, according to analysis cited by borkena.com. A sustained closure forces tankers onto a detour adding ten to fourteen days per voyage, compressing effective fleet capacity and widening the discount buyers demand on exposed cargoes. Refined products are disproportionately hit given their dependence on prompt regional distribution.1
ICE Brent crude front-month settled at $82.38 per barrel as of the August 9 (2026-08-09) electronic session, while the Asian LNG benchmark JKM stood at $21.11 per MMBtu on the same date. ICE Endex TTF front-month was quoted at €55.50 per MWh at the August 9 (2026-08-09) close of European electronic markets. Neither contract showed directional movement through the weekend session, leaving the market's full response to Red Sea developments for when trading resumes.4,6
The current episode draws comparisons to the 2023-2024 campaign that forced Maersk, Hapag-Lloyd, Mediterranean Shipping Company, CMA CGM, Evergreen and BP to halt Red Sea transits entirely. That rerouting around the Cape of Good Hope lasted for the better part of two years, according to warontherocks.com. Whether the present escalation reaches that threshold turns on how aggressively Houthi forces enforce the declared blockade against Saudi-flagged or Saudi-destined cargoes.3
Bab el-Mandeb sits at the southern end of the Red Sea, acting as the gateway for vessels transiting toward the Suez Canal — the fastest lane between the Persian Gulf and European ports. A durable closure pushes tankers onto the Cape route and removes capacity from the effective global fleet, with knock-on effects for European refined product prices and Asian LNG spot premiums that follow longer voyage economics.1,6
The strait is not the only chokepoint under simultaneous strain. Warontherocks.com published analysis on August 5 (2026-08-05) noting that Iran's closure of the Strait of Hormuz and its efforts to extract transit payments, combined with the Houthi push against Saudi shipping, have raised broader questions about the durability of maritime passage guarantees across the region. The piece frames these pressures as part of a wider erosion of enforcement capacity rather than isolated incidents.7
Russia's crude export corridor presents a parallel set of vulnerabilities unrelated to the Red Sea but instructive for traders thinking about chokepoint exposure more broadly. The Turkish Straits carry approximately 20% of Russia's crude exports and the Danish Straits account for roughly 35%, according to The Economist, giving NATO members meaningful influence over Russian oil revenue without direct sanctions escalation. Urals crude was priced at $79.19 per barrel as of August 9 (2026-08-09).2
A Foreign Policy analysis published on August 7 (2026-08-07) frames the broader dynamic as a contest over who enforces passage rights as U.S. naval primacy faces pressure across multiple theatres simultaneously, with Finland's Baltic Sea position adding another dimension to NATO's northern exposure.8
For energy desks, the immediate signal is whether vessel owners with Saudi crude exposure continue dark transits, commit to Cape rerouting, or begin seeking relief under delivery contract terms. Eleven tankers on July 26 (2026-07-26) represents a documented floor; a further drop would likely pull freight benchmarks sharply higher and feed directly into European refined product prices.6,5