U.S. Naval Blockade of Iranian Ports Has Lasted Nearly Three Weeks
Since April 13, the U.S. has implemented a naval blockade on Iranian ports, preventing all vessels from entering or leaving Iranian ports, which is still in effect.
Trump has instructed his team to prepare for a long-term blockade to cut off Iran's oil revenue, resulting in daily losses of hundreds of millions of dollars; Iran has stated that it will reopen the Strait if the U.S. lifts the blockade, but nuclear negotiations have been postponed.
Energy traders and Asian importing countries are adjusting shipping routes and inventories, with funds shifting from conventional oil transport through the Strait of Hormuz to alternative routes and high-priced spot markets. Iran's economy is under pressure, while the U.S. Navy and related defense assets benefit, leading to ongoing volatility in global oil prices and supply chains.
Source: Public Information
ABAB AI Insight
Trump's administration quickly initiated the blockade after the breakdown of negotiations on April 12, following U.S.-Israeli military actions against Iran at the end of February, continuing its "maximum pressure" strategy. Previously, the U.S. had executed this through the seizure of Iranian vessels and redirecting ships to non-Iranian ports, marking an escalation from aerial strikes to maritime economic strangulation.
In terms of capital flow, the U.S. is cutting off Iran's oil exports and transit fee revenues through the blockade, while forcing Asian buyers to increase purchases from alternative sources like Saudi Arabia and Iraq, creating an indirect capital reallocation of "blockade pressure + allied energy diversion". Iran is attempting to alleviate the situation through non-dollar channels like yuan settlements, but overall revenues have sharply decreased.
Similar to the Trump "maximum pressure" campaign from 2018-2020 and historical crises in the Strait of Hormuz, this situation is in a transitional phase from "military strikes" to "long-term economic blockade + negotiations" in the context of U.S.-Iran conflict by 2026. Currently, the blockade remains a primary leverage under a fragile ceasefire.
Essentially, this represents a restructuring of the supply chain: the global oil supply chain, traditionally reliant on free navigation through the Strait of Hormuz, is being disrupted by targeted U.S. Navy blockades, forcing diversification of energy trade routes and settlement currencies through precise pressure on Iranian ports, thereby restructuring Middle Eastern energy pricing and flow mechanisms from "Iran-controlled chokepoints" to "U.S. military-led access".