Overview
The disruption of shipments passing through the Strait of Hormuz after the outbreak of hostilities on February 28 - when U.S.-Israeli strikes prompted a response identified as an Iran war - has placed the Dubai Middle East crude benchmark under severe operational and valuation strain. The benchmark is used to price about 18 million barrels per day of crude output from the United Arab Emirates, Oman and Qatar, most of which historically loads from ports inside the Strait.
With the majority of shipments effectively stopped by the risk of Iranian attacks on shipping, the mechanics of setting a reliable Dubai price have been thrown into question. Price-setting by S&P Global Energy Platts - the agency that assesses Dubai and Brent - is hampered because much of the physical supply that underpins the assessment cannot be loaded from Gulf terminals.
Why the benchmark is stressed
The Dubai benchmark traditionally reflects trades for cargoes loaded inside the Strait of Hormuz. Since the strikes on February 28, very few tankers have transited the choke point and buyers and sellers have confronted uncertainty over whether and when they can take delivery from Gulf ports. That uncertainty has made it difficult to price barrels that are due to be delivered in two months' time during what market observers describe as the most disruptive supply shock on record.
Market data show crude from the Middle East climbed to nearly $170 a barrel amid the disruption, exceeding Brent's 2008 record high of $147 a barrel. The spike has translated into notably higher input costs for Asian buyers who still use Dubai to set prices for their purchases.
Platts' response and market reaction
On March 2, shortly after the onset of the conflict, Platts moved to exclude loadings from ports inside the Strait of Hormuz for the Dubai assessment. The agency reduced the number of grades in the Dubai basket from five to two: Abu Dhabi Murban shipped from Fujairah, and Oman crude. Platts has stated that the change reduced the quantity of deliverable crude reflected in the assessment by roughly 40%.
Platts says it has held extensive consultations with market participants and stressed the need for immediate steps to ensure the Dubai benchmark continues to mirror tradable spot values of physical crude in the Middle East, even during historic volatility. Market participants, however, report that some have stopped dealing in cargoes priced off Dubai and have paused trading related derivatives, arguing that the benchmark no longer reliably represents the region's physical market.
Proposals from industry participants include suspending the Dubai assessment until market conditions stabilize, restoring the three excluded grades to the deliverability pool, or introducing other grades from outside the Gulf region priced on delivered-to-Asia terms. The range of suggestions reflects concern that liquidity could evaporate unless the methodology is adjusted.
Immediate consequences for Asian refiners and consumers
Higher Dubai prices have translated into immediate pressure on Asian refiners, who face higher feedstock costs and, by extension, increased retail fuel prices. Some refiners have responded by altering their pricing mechanisms for purchases: several Asian buyers have shifted to contracts that price U.S. crude purchases off a differential to international Brent futures rather than Dubai-derived pricing.
Market participants said Platts' March 2 change came as a surprise because the agency typically conducts consultations over several months before altering assessment methodology. The rapid exclusion of May-loading Gulf cargoes during March trading led some traders to say the benchmark no longer represented the wider region and that the published numbers were already influencing billions of dollars in pricing for Asian and remaining Gulf barrels.
Concentrated buying and record-scale positions
Platts sets Dubai prices using trades conducted during its Market on Close (MOC) process, which aggregates partial cargo trades - each partial is 25,000 barrels - into full cargoes when sellers declare deliveries of 500,000-barrel shipments from one of the eligible grades. Trade data for March show TotalEnergies' trading arm Totsa purchased a substantial volume of Dubai partials during that month, amounting to about $4 billion and resulting in the declaration of 77 cargoes of Oman and Murban crude, equivalent to 38.5 million barrels out of the 82 cargoes delivered in the MOC window.
Other trading houses, including Mercuria and Equinor, picked up smaller numbers of cargoes on the last trading day of the month. The dominance of a single buyer in March has been cited by some traders and analysts as a factor that added upward pressure to the Dubai assessment.
Experienced traders note that large positions in physical oil markets are not unusual and do not necessarily breach regulations. Still, participants on the opposite side of fast-moving price swings have faced steep mark-to-market losses: traders surveyed estimated losses on short positions in the Dubai-linked market could range from $60 to $100 a barrel, depending on when they covered their positions.
Alternative pricing and market adaptation
Given the difficulties in determining a Dubai price reflective of Gulf loadings, several market participants are adopting alternative pricing strategies. These include shifting to Brent-related pricing for certain U.S. barrels and evaluating different benchmarks or delivered pricing to ensure the price mechanism mirrors physical trade flows that are actually occurring. The choice of an alternative benchmark or methodology is being driven by the need for tradability and liquidity in the face of constrained Gulf loadings.
Promotional material cited in market commentary
Industry communications and market commentary circulating in trading desks have referenced investment and stock-screening services that evaluate companies linked to these market moves. One such product referenced its use of algorithmic models to screen equities and highlighted past winners as examples. These references have appeared alongside coverage of market positions and trading outcomes tied to the Dubai assessment.
Outlook and unresolved questions
Key uncertainties remain: it is not clear when Gulf ports will resume normal loading schedules, how Platts will ultimately adjust its methodology beyond the interim grade exclusion, and whether liquidity in Dubai-linked cash and derivatives markets will recover. Market participants are calling for clarity and methodology updates to restore confidence in a benchmark that is used to price a significant share of the world's crude supply.
Reporting on market structure, pricing mechanics and the flow-through to buyers and consumers continues as participants and price-setters engage on next steps.