NextFin News - U.S. Secretary of State Marco Rubio informed the Senate Foreign Relations Committee on Tuesday that Iran has deployed naval mines across "large segments" of the Strait of Hormuz, a disclosure that suggests the threat to global energy supplies is more extensive than previously acknowledged by the administration. Testifying publicly for the first time since the outbreak of hostilities between the U.S.-Israel coalition and Iran on February 28, Rubio characterized the mining of international waters as "unlawful and illegal," signaling that any eventual diplomatic resolution must include Tehran’s cooperation in demining the strategic waterway.
The Secretary’s assessment provides a starker picture of the maritime environment than the one initially offered by U.S. President Trump. In the early weeks of the conflict, U.S. President Trump expressed skepticism regarding the scale of Iran’s mining operations, even suggesting in mid-March that he did not believe the strait had been mined. While the White House later shifted its stance—with U.S. President Trump ordering the Navy in April to "shoot and kill" any vessels seen deploying explosives—Rubio’s latest testimony confirms that the "clearing" operations touted by the administration have yet to secure the passage for commercial traffic.
The Strait of Hormuz remains the world’s most critical oil chokepoint, historically handling roughly 20% of global petroleum liquids consumption. Since the war began, tanker traffic has effectively evaporated, precipitating what energy historians now call the largest supply disruption in modern history. Market data from June 2 shows Brent crude trading near $95.40 per barrel, while West Texas Intermediate (WTI) hovered around $93.89. These prices reflect a persistent "war premium," though they remain below the triple-digit peaks seen in the immediate aftermath of the February invasion, as traders weigh the reality of a closed Hormuz against slowing global demand.
Jack Kennedy, head of Middle East country risk at S&P Global Market Intelligence, noted that the lack of transparency regarding the number and location of the mines remains the primary obstacle to normalizing trade. Kennedy, whose analysis typically focuses on quantifiable geopolitical risk metrics, argues that commercial shipping is unlikely to return to pre-war volumes until a comprehensive, internationally verified demining effort is completed. This perspective is widely shared among maritime insurers, who have largely suspended coverage for the region, effectively keeping the strait closed even in areas where the U.S. Navy claims to have established safe corridors.
The Pentagon reports that it has destroyed over 40 minelaying vessels and numerous individual mines, yet the sheer geography of the strait allows for a "persistent threat" model where even a few undetected mines can deter multi-billion dollar shipping fleets. While U.S. President Trump demanded last Friday that Iran immediately begin detonating its own mines as a condition for de-escalation, the Iranian leadership has shown no public inclination to comply. This stalemate suggests that the energy markets must prepare for a prolonged period where the world’s most vital artery for crude oil remains a high-risk combat zone rather than a commercial highway.
Explore more exclusive insights at nextfin.ai.
