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Iran Conflict 2026
21SEP

Saudi Red Sea diesel loadings collapse

3 min read
15:34UTC

Saudi Red Sea diesel loadings fell to roughly 100,000 tonnes since 27 July from about 600,000 the week before, and Turkey turned net importer of European diesel for the first time since November 2022.

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Key takeaway

Saudi Red Sea loadings collapsed and Turkey turned importer, tightening Mediterranean feedstock and product on one corridor.

Saudi Red Sea diesel loadings fell to roughly 100,000 tonnes since 27 July, against about 600,000 tonnes the week before, and Turkey flipped to a net importer of European diesel for the first time since November 2022, per Argus Media 1. Turkey normally runs the other way, pushing surplus barrels from its Aegean and Mediterranean refineries into southern Europe. A country that supplies the basin turning round to draw from it removes the region's nearest replacement cargo at the moment it is needed.

Mediterranean refiners take 24% of their imported diesel through Saudi Red Sea ports, against 17% for Northwest Europe 2. That import share explains why the pricing separation shows up in the Med rather than at ARA, and it lands twice over: the same corridor carries the crude feedstock those refineries run and the finished cargoes they backfill with, so a disruption tightens both legs in the same week rather than in sequence.

The corridor itself has a measured floor. Tanker transits through Bab el-Mandeb have settled near 7.5 a day for Saudi-linked hulls, down from about 12 in the days between the 20 July blockade declaration and the withdrawal of Lloyd's-market war-risk cover on 24 July, with total crossings down 22% to 37.2 a day 3. This desk logged that transit figure on 30 July , and 7.5 is a floor rather than a waypoint, set by the insurance mechanics rather than by the shooting.

War-risk cover and a war-risk rate are different instruments with different reversal speeds, which is why the floor holds. A rate priced at some percentage of hull value can be argued back down inside a week once the loss record cools. A withdrawal removes the contract for a defined class of vessel, and an underwriting committee has to re-accept that class before an owner will sail it, which is a process with a lead time no diplomatic headline shortens. Freight was tightening ahead of the exclusion rather than because of it: cross-Mediterranean aframax rates had already spiked 198% month-on-month to $151,308 a day . A charterer without an existing placement is now facing a capacity market rather than a price market.

Deep Analysis

In plain English

Saudi Arabia normally ships a lot of diesel to Europe through the Red Sea, but the tonnage it sent in the week after 27 July collapsed to a sixth of the previous week's level. At the same time, Turkey, a country that usually sells diesel to Europe, had to start buying it instead, for the first time since 2022. Both point the same way: fewer tankers are willing to use the Red Sea corridor right now, so cargoes that would normally flow through it are not moving, and countries that relied on that supply are having to look elsewhere.

Deep Analysis
Root Causes

Lloyd's market underwriting committees do not restore war-risk cover for a withdrawn hull class the moment a threat recedes; a class gets pulled after an incident, or a credible warning, and re-accepting it requires the committee to see a sustained calm period.

That restoration typically lags any de-escalation by weeks, not days, which is the mechanical reason a single called-off strike, as in this desk's earlier item, does not immediately restore Red Sea tanker flows even if the underlying threat has genuinely passed.

What could happen next?
  • Risk

    If Saudi Red Sea loadings do not recover within a few weeks, expect further Mediterranean refiners to follow Turkey in flipping from net exporter to net importer of diesel, deepening the regional supply gap.

Sources:Argus Media
Mentions:Saudi Arabia →Turkey →Bab al-Mandeb →Mediterranean →Argus Media →Cape of Good Hope →Red Sea →ARA →Lloyd's of London →
First Reported In

Update #22 · The premium unwinds; the diesel crack does not

Argus Media· 3 Aug 2026
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Causes and effects
Caused by
Med aframax freight doubles in a week
Freight already tightening before the loadings collapse compounds the corridor squeeze
Occurred 20 Jul 2026
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Bab el-Mandeb thins to 7.5 tankers a day
The Bab el-Mandeb transit floor this desk logged 30 July strands the same Red Sea cargoes
Occurred 29 Jul 2026
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This Event
Saudi Red Sea diesel loadings collapse
Mediterranean refiners lose imported product and Red Sea feedstock on the same corridor at once, and the reversed Turkish trade direction removes the region's usual local backfill.
Led to
Med diesel crack assessed at $91.67
The Saudi Red Sea loadings collapse feeds the Med crack that Argus assessed at a record
Occurred 29 Jul 2026
Read story →
Different Perspectives
Shipping and insurance industry
Shipping and insurance industry
UKMTO counted about 20 US-facilitated Hormuz transits a day to 11 September against only 6 visible on AIS, with traffic still around 90% below the 138-a-day pre-war baseline. War-risk underwriters cannot price hulls they cannot see, or resolve whether the tanker El Gaia hit a mine, as Iran claims, or a missile and drone, as CENTCOM says.
European refiners
European refiners
European refiners, including Poland's Orlen, absorbed a roughly $26 gap between Dated Brent at $130.80 on 15 September and ICE Brent futures settling at $103.87 on 18 September, a spread that widened from $13.45 on 9 September rather than newly opening. Their futures hedges no longer cover what they now pay for physical barrels.
Saudi Arabia
Saudi Arabia
Saudi Aramco zeroed European term customers' October allocations and rerouted roughly 60 million barrels to Asia through Ras Tanura and Sohar, using Red Sea and Gulf terminal capacity built years ago to cut Hormuz exposure. Riyadh reallocated existing supply rather than negotiating a shortfall with Europe.
Qatar
Qatar
Qatar's energy minister Saad al-Kaabi told Bloomberg at the Qatar Economic Forum on 20 September that Bessent's two-year Hormuz-obsolescence forecast is wrong, and that Doha has deliberately built no bypass pipeline. Qatar's gas exports run through one waterway by choice, not oversight.
Iran (foreign ministry and Majlis)
Iran (foreign ministry and Majlis)
Iran's foreign ministry and 130 Majlis deputies moved toward NPT withdrawal this week, with lawmaker Hossein-Ali Haji Deligani filing a triple-urgency bill on 20 September that Speaker Qalibaf has not yet scheduled. Tehran treats treaty membership as leverage still on the table, not yet spent.
Russia and China
Russia and China
Moscow and Beijing vetoed the Panel of Experts' renewal, maintaining Resolution 2231 lapsed in October 2025 and the 2025 snapback was never validly triggered, so the sanctions architecture the Panel enforces has no current legal standing. Both governments frame the veto as upholding law, not shielding Tehran.