At least 34 tankers linked to Iran have evaded restrictions, generating an estimated $910 million in oil revenue.
Category: Politics
Since the United States imposed a naval blockade on April 13, 2026, at least 34 tankers linked to Iran have successfully bypassed the restrictions, according to reports from maritime tracking firms. This development comes as US President Donald Trump claimed that America "totally controls" the Strait of Hormuz and described the blockade as a "tremendous success." The blockade aimed to halt economic trade with Iran by targeting vessels entering or leaving its coastal waters.
The blockade, which was expanded on April 16 to include Iranian vessels operating on the high seas, was intended to pressure Tehran into negotiations. Yet, data from Vortexa indicates that 19 tankers managed to exit the Gulf, with 15 entering from the Arabian Sea. Among these, at least six tankers were confirmed to be transporting Iranian crude oil, collectively carrying approximately 10.7 million barrels. This oil, typically sold at a discount compared to Brent crude, could generate an estimated revenue of around $910 million for Iran.
One notable vessel, the Iranian-flagged supertanker Dorena, evaded detection by turning off its transponder, a device that signals a ship's location and identity. The Dorena left Iranian waters on April 17 and later engaged in a ship-to-ship oil transfer off the coast of Malaysia, a tactic used to obscure the origin of the oil. Other sanctioned vessels, including the Murlikishan and Alicia, also crossed the Strait of Hormuz, indicating that the blockade may not be as effective as US authorities claim.
The Strait of Hormuz is a strategically important waterway through which a substantial portion of the world's oil supply is transported. The US blockade is part of a broader strategy to counter Iran's influence in the region and to enforce sanctions aimed at curtailing its nuclear program. Trump has linked the continuation of the blockade to the need for a "final deal" with Tehran, emphasizing that it will remain in place until such an agreement is reached.
In the days following the blockade's announcement, the US Central Command reported that American forces had directed at least 28 vessels to turn back toward Iranian ports. The enforcement of the blockade included the detention of one container ship in the Gulf of Oman and the boarding of a sanctioned tanker in the Indo-Pacific. These actions underline the US military's commitment to enforcing the embargo, yet they also highlight the challenges faced in controlling maritime traffic in the region.
As tensions escalated, Iran asserted its own control over the Strait of Hormuz, declaring that all vessels must obtain permission from the Islamic Revolutionary Guard Corps (IRGC) Navy before transiting. This announcement came shortly after Iran briefly claimed the strait was "completely open," only to later clarify that access would be conditional. Reports indicate that Iranian forces fired on several vessels, including a French container ship and an Indian tanker, raising concerns about the safety of shipping in the area.
The situation in the Strait of Hormuz remains precarious, with shipping traffic significantly reduced due to the overlapping US and Iranian restrictions. Shipowners have described the current conditions as a "double blockade," creating uncertainty for operators in the region. As diplomatic efforts continue, the effectiveness of the US blockade is being questioned, particularly as Iranian vessels continue to navigate the strait.
Iran's military support for its tankers, coupled with tactics such as switching off AIS transponders to evade detection, suggests that the country is adapting to the blockade. This could lead to increased tensions and potential conflicts at sea if both sides continue to assert their control over this key waterway. The US military has indicated that it will maintain its presence in the region, but the ability to intercept every shipment of Iranian oil remains in question.
As of now, the US is set to continue its blockade, with Trump recently announcing an indefinite extension of the ceasefire to allow for negotiations. The future of shipping through the Strait of Hormuz will depend on the outcomes of these diplomatic discussions and the willingness of both sides to reach a compromise. Observers are closely monitoring the developments, particularly in light of the potential economic implications for global oil markets.
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