The International Energy Agency (IEA) expects global oil supply to fall by 4.3 million barrels per day, representing a 4% decline this year, as renewed hostilities in the Middle East disrupt production and shipping. This projection deepens an existing oil market deficit, driven by tanker attacks in the Strait of Hormuz and Houthi attacks in the Red Sea following the collapse of the U.S.-Iran ceasefire.

Iran’s Ministry of Foreign Affairs spokesperson, Esmaeil Baqaei, expressed concerns over environmental degradation in the Strait of Hormuz amid recent oil spills. Baqaei stated that videos have emerged showing oil pollution along the shores of Qeshm Island, with preliminary evidence suggesting a "foreign bulk carrier" as the source. He argued that all parties benefiting from Strait of Hormuz shipping, including energy-consuming nations, insurers, and military aggressors, share responsibility for the environmental damage.

Environmental Impact and Cleanup Efforts

Oil slicks have reached mangrove forests near Naqasheh on Qeshm Island’s southern coast, prompting authorities to monitor and begin cleanup efforts. Baqaei noted that the contamination has been documented at three coastal sites and across parts of the sea surface. He emphasized that Iran, with the region’s longest coastline, "cannot remain indifferent" to the pollution and stated that stakeholders have both a legal and moral duty to help remediate the harm.

Maritime intelligence firm TankerTrackers.com said the Qeshm pollution likely originated from oil spilled after the Minoan Pioneer was attacked off Oman on August 3. The firm described the incident as a "self-inflicted wound by Iran," noting the spillage drifted across the strait over to Iran.

Simultaneously, a massive oil spill from the sanctioned tanker Caroline Bezengi, carrying around 800,000 barrels of Russian crude, is reaching Oman’s coastline after the vessel ran aground on June 30. Oman’s environment agency warned that up to 40 km of coast near Ras Madraka and Masirah Island could be affected. The tanker had first reported trouble off Yemen on June 8 following a suspected blast. Complex war and sanctions rules are complicating the response, as IOPC Funds’ rules exclude compensation for pollution damage caused by an act of war or hostilities.

Market Reaction and Geopolitical Standoff

The Persian Gulf Strait Authority (PGSA) refuted President Donald Trump’s claims that the U.S. had total control over the Strait of Hormuz, asserting that the waterway remained closed and "will not be reopened until Iran’s conditions are accepted."

At the time of writing, Brent crude oil futures were trading 0.04% lower at $88.93 per barrel, while WTI crude futures were trading 0.17% lower at $83.13 per barrel.

What the Numbers Show

The IEA’s projection of a 4% global supply drop coincides with relatively stable short-term price movements, with Brent and WTI falling less than 0.2%. This divergence suggests that while structural supply constraints are widening, immediate market pricing may be lagging behind the severity of the logistical disruptions in the Strait of Hormuz and Red Sea.

U.S. crude oil futures closed at $83.27 per barrel, marking a gain of 7 cents, or 0.08%, in the latest trading session. The modest rise signals a marginally positive close for the U.S. crude oil market.

Settlement details

The following table summarises the key settlement data for U.S. crude oil futures: