News
Why Oil Prices Pulled Back Even as Gulf Supply Risks Continue
Summary
- Brent crude settled down 2.15 percent to $87.07 a barrel on August 13, 2026, ending a six-session rally.
- The International Energy Agency widened its 2026 demand contraction forecast to 1.6 million barrels per day, up from about 1 million bpd the previous month.
- US commercial crude inventories rose by 17.4 million barrels in the week ended August 7, 2026, the largest weekly build since January 2023.
- A drone strike on Saudi Aramco’s Jazan refinery, which can produce 250,000 bpd of ultra-low-sulfur diesel, sent diesel cracks to an all-time high the same day.
Oil prices reversed course on August 13, 2026, after a six-session rally, as investors weighed weaker demand signals against a sharp US crude inventory build. Brent crude futures settled down $1.91, or 2.15 percent, at $87.07 a barrel, while U.S.
West Texas Intermediate crude closed down $2.02, or 2.4 percent, at $81.25. Both benchmarks had fallen more than 3.5 percent earlier in the session before paring losses on reports that Yemen’s Houthis had targeted a Saudi Aramco refinery with drones.
Yemen’s Houthi-run news agency said the group attacked the Jazan refinery in Saudi Arabia with two drones on August 13, describing it as a response to alleged Saudi violations of Yemeni airspace.
The Jazan refinery has the capacity to produce 250,000 barrels per day of ultra-low-sulfur diesel, and news of the attack sent diesel cracks to an all-time high that day.
Why Is the IEA Cutting Its 2026 Demand Forecast?
The International Energy Agency said on August 12, 2026, that it now expects global oil demand to contract by 1.6 million barrels per day in 2026, a steeper decline than the roughly 1 million bpd it forecast the previous month.
The agency tied the downgrade to higher fuel prices and restricted supply stemming from the broader US-Israeli war with Iran, of which the Strait of Hormuz closure is one part.
OPEC lowered its own 2026 world oil demand growth forecast to 580,000 barrels per day in its latest monthly oil market report.
Two major forecasting bodies revising their demand outlooks in the same direction within days of each other signals a genuine shift in sentiment, not an isolated data point.
What Does the US Crude Inventory Build Signal?
US commercial crude oil inventories rose by 17.4 million barrels to 424.4 million barrels in the week ended August 7, 2026, their highest level since June 5. That build far exceeded expectations: analysts had predicted a draw of 1.4 million barrels, not a build of this size.
UBS analyst Giovanni Staunovo said the large crude stock build is a headwind for prices, though he added that downside should stay limited as long as flows through the Strait of Hormuz remain restricted.
A growing domestic supply cushion alongside a Gulf export bottleneck is exactly the kind of mixed signal that makes short-term price forecasting unreliable right now.
Who Actually Controls the Strait of Hormuz?
As of mid-August 2026, the US and Iran were making direct, conflicting claims about control of a waterway that carried about 20 percent of global oil supply before the war began.
Iran’s Basij paramilitary unit said on August 13, 2026, that the strait is under Iran’s control and management, a day after President Trump said the United States had total control of the waterway.
US Defense Secretary Pete Hegseth said the same day that the US military could maintain a blockade on Iranian ports for as long as needed.
Shipping data offered a starker picture than either statement: vessel crossings through the strait, excluding container ships, fell to five on August 12, their lowest in three weeks, against a pre-war average of 125 to 140 vessels passing through daily.
Prices moved further after this snapshot, with Brent climbing back to $93.78 by August 20, 2026, as supply-side concerns resurfaced.
How Are Refinery Outages Elsewhere Adding to Market Tightness?
Supply disruptions outside the Gulf are compounding the uncertainty. Russia’s seaborne oil product exports fell sharply in July 2026 after Ukrainian drone attacks forced unplanned maintenance at domestic refineries.
A refinery in the Russian city of Orsk was forced to shut down after a drone strike, with repairs expected to take up to six months.
A separate incident added to global unease: a blast during maintenance work at a petroleum storage facility in the Dutch port of Rotterdam killed one person and wounded several others on August 13, 2026.
Neither event is directly tied to Gulf supply, but both add to a global backdrop of refinery and storage disruptions layered on top of the Hormuz standoff.
Brent vs. WTI: Two-Directional Price Pressure
| Date (2026) | Brent | WTI | Driver |
| Aug 6-12 | Six-session rally | Five-session rally | Supply risk, Hormuz standoff |
| Aug 13 | $87.07 (-2.15%) | $81.25 (-2.4%) | IEA demand cut, EIA crude build, Houthi attack paring losses |
| Aug 20 | $93.78 | N/A | Renewed supply-side concerns push Brent back up |
What Does This Volatility Mean for UAE Diesel Buyers?
The same week produced a six-session rally, one of the sharpest single-day pullbacks in recent weeks, and a diesel-crack spike to an all-time high, all within days of each other.
Product availability, pricing, and delivery lead time remain subject to market conditions, product source, destination, and commercial terms agreed upon at the order stage, and that is especially true when supply-side and demand-side signals move in opposite directions within the same week.
For buyers of 10 PPM Ultra-Low-Sulphur Diesel (EN 590/Euro V) and Marine Diesel Oil (MDO), a single day’s settlement price is a weak basis for locking in large-volume orders.
A pricing approach that references a rolling average across several sessions better reflects the underlying volatility than a single snapshot.
Cross-Border Documentation and Incoterms During Uncertain Pricing
Import and export coordination requires extra clarity when price direction is this unsettled.
Under ICC Incoterms 2020, the agreed delivery term determines which party bears the cost and risk of a shipment delay, which matters more when tanker movement through the Strait of Hormuz remains contested and inconsistently reported.
Buyers coordinating supply through Jebel Ali, Fujairah, Hamriyah, or Khalifa ports should confirm pricing basis and Incoterm before committing to volume, rather than after a shipment is already in transit.
Clear documentation on payment terms and delivery windows reduces disputes when a shipment is affected by regional supply conditions rather than a supplier-side failure.
Frequently Asked Questions
1. Why did oil prices drop after six days of gains?
Brent and WTI both fell more than 2 percent on August 13, 2026, as a steep IEA demand downgrade and a large US crude inventory build reversed a six-session rally.
2. Why is the IEA lowering its oil demand forecast?
The IEA said on August 12, 2026, that high fuel prices and restricted supply from the broader US-Israeli war with Iran are curbing consumption, widening its 2026 demand contraction forecast to 1.6 million barrels per day.
3. Does the Houthi attack on the Jazan refinery affect diesel supply?
The Jazan refinery can produce 250,000 bpd of ultra-low-sulfur diesel, and the drone attack sent diesel cracks to an all-time high on August 13, 2026, showing how a single refinery incident can move product-specific pricing.
4. Who controlled the Strait of Hormuz as of mid-August 2026?
The US and Iran made conflicting claims, and vessel crossings had fallen to five a day against a pre-war average of 125 to 140. Prices later moved higher again by August 20 as supply concerns resurfaced.
5. How do refinery outages in Russia affect UAE fuel buyers?
They are not directly connected to Gulf supply, but they add to a global backdrop of reduced refined product availability, which can influence broader pricing even for buyers sourcing product regionally.
6. How should procurement teams respond to this kind of volatility?
Reference pricing over a rolling multi-day average rather than a single day’s settlement and confirm the Incoterm and delivery window at the order stage so a mid-transit price swing does not create a documentation dispute.
Coordinate Supply Through Diesel Trading
Weeks like this one show how quickly oil market sentiment can shift between supply risk and demand concerns, sometimes within the same trading session.
Diesel Trading coordination helps you place orders with pricing terms that reflect current market conditions rather than a single volatile data point.
This is particularly relevant for construction, logistics, and industrial buyers who need 10 PPM Ultra-Low-Sulphur Diesel on a recurring basis and want clarity on how pricing basis and delivery timing are set before committing to a shipment.
Product availability, pricing, and delivery lead time remain subject to market conditions, product source, destination, and commercial terms agreed upon at the order stage.
