What is the reported surge in non-Iranian oil flows through the Strait of Hormuz, and what does it indicate about US influence in the region?

According to Vortexa Ltd., non-Iranian Persian Gulf oil flows through the Strait of Hormuz surged to at least 1.8 million barrels per day in the first 10 days of June, up from 1.2 million barrels per day in May — a roughly 50% increase. This surge underscores growing US control in the region, as no Iranian oil is flowing due to a US-imposed blockade, and the US military has reportedly helped clear about 100 million barrels of oil through Hormuz since last month — equivalent to at least 2.4 million barrels per day since the start of May.

How has Iran responded to the increased US activity in the Strait of Hormuz, and how have markets reacted compared to earlier escalations?

Iran’s Persian Gulf Strait Authority (PGSA) announced on Thursday that the Strait of Hormuz would be closed until further notice — a direct response to heightened US activity, including disabling two vessels in the Gulf of Oman and causing a fire aboard a third ship. However, the market reaction was muted, with Brent futures trading little changed, in stark contrast to the 13% price jump that followed Iran’s first shutdown of Hormuz at the outset of the war.

Hormuz Oil Flows Surge 50% as US and Iran Vie for Control

Jun 11, 2026

Vortexa reports a 50% surge in Hormuz oil flows amid US-Iran tensions. While Iran threatened closure, markets reacted mutedly as prices fell over 25% from conflict peaks due to increased exports and reserve releases.

bloomberg

2026-06-11

Hormuz Oil Flows Surge 50% as US and Iran Vie for Control

Hormuz Oil Flows Surge 50% as US and Iran Vie for Control

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