On September 1, 2026, two VLCCs carrying roughly 2 million barrels of Saudi crude each were struck by unidentified projectiles within minutes of each other while sailing out of the Strait of Hormuz near Khasab, Oman, as renewed U.S.-Iran fighting intensified concerns over Gulf energy supplies and sent Brent crude up 4.6% to $94.65 a barrel.
The two vessels were the Saudi-flagged Sidr and Liberia-flagged Senegal Prosperity. Both had loaded Saudi crude at the Juaymah terminal the previous week.
No casualties were reported, but the incidents matter far beyond the two vessels involved.
A fully loaded VLCC can carry around 2 million barrels of crude. Two such tankers being attacked within minutes in one of the world's most important energy corridors immediately changes the calculation for shipowners, insurers and commodity traders.
Oil markets reacted accordingly.
Brent futures climbed $4.16, or 4.6%, to settle at $94.65 per barrel, while WTI jumped $4.46, or 5.2%, to $90.22. Both benchmarks recorded their highest closes since late July.
Physical traffic through Hormuz remains far from normal.
Preliminary Kpler data showed only four commodity vessels transited the strait on September 1, compared with 10 a day earlier and a 10-day average of around 13. Before the conflict, Hormuz handled roughly one-fifth of global oil consumption.
Iran is also expanding restrictions on shipping. Its latest blacklist covers 56 vessels, including crude tankers, LNG and LPG carriers and clean-product vessels.
For petrochemical markets, this is where the story becomes bigger than crude.
The Gulf is a major supplier of LPG, LNG and petrochemical products, while crude prices feed directly into naphtha economics. Higher freight, insurance and security costs can therefore travel quickly through Asian petrochemical supply chains.
Unusual shipping practices are already emerging.
Three LNG cargoes originating in Qatar and the UAE have recently been transferred ship-to-ship outside Hormuz before continuing to India and Japan. Such transfers are unusual for LNG. Asian spot LNG prices have reached $23.20/mmBtu, more than double pre-conflict levels.
For chemical buyers, the question is no longer simply whether Middle Eastern material is available.
Increasingly, it is whether the cargo can leave the Gulf safely, how long delivery will take, and how much freight and insurance will add to the final cost.
Until reliable commercial traffic through Hormuz returns, that uncertainty will remain embedded in crude, LPG, naphtha and downstream petrochemical markets.
