US Military Guides Massive Offshore Oil Transfers Near Hormuz Amid Sanctions Evasion Tactics

In a striking reversal of its own long-standing policy, the U.S. military has been secretly overseeing ship-to-ship oil transfers in the Gulf to bypass Iran's blockade of the Strait of Hormuz. The operation, dubbed "Project Freedom" by the White House, has moved an estimated 90 to 100 million barrels of oil through what officials call an "overwatch" network — using the same covert tactics Washington spent years condemning when Iran and China used them. Reuters identified at least 92 to 116 vessels in the shadow network since operations began in early May 2026.
President Trump publicly claimed 200 vessels were escorted with "transmitters off," calling it a "secret mission" that proved "America, not Iran, controlled the strategic chokepoint," according to The Guardian. A peace deal is now set for signing on June 19, but experts warn it could take until early 2027 for normal trade to resume.
The transfers began in early May after Iran's Supreme National Security Council formally closed the Strait to unauthorized commercial traffic on April 18. U.S. forces responded by guiding tankers through a secretive relay system. Aerial drones, water drones, and AH-64 Apache helicopters escort convoys as they pump oil from one ship to another at sea — a method known as a ship-to-ship (STS) transfer. This lets tankers avoid Iranian-controlled chokepoints entirely.
At its peak on June 11, satellite imagery captured 17 pairs of tankers conducting simultaneous transfers off the coasts of Fujairah in the UAE and Sohar in Oman, according to Reuters. On June 6 alone, 2.3 million barrels were siphoned from a single Kuwaiti tanker off Sohar. Shipping records identified ADNOC of the UAE and the Kuwait Oil Tanker Company as the most active participants, The Business Standard reported.
For years, the U.S. labeled ship-to-ship transfers a tool of "illicit" trade when Iran and China used them to dodge sanctions. Vessels would turn off their tracking transponders — going "dark" — before exchanging cargo at sea. Now the U.S. is doing the same thing. Media outlets including India Today highlighted the irony of Washington adopting what critics call the "Chinese/Iranian playbook."
Iran created a new body called the Persian Gulf Strait Authority (PGSA) to impose a permit-and-toll system on the Strait. The U.S. operation was built specifically to get around it. Maritime risk expert Noam Raydan of the Washington Institute told Reuters that the operation depended on a small number of shippers willing to risk Iranian drone attacks — a fragile foundation for a global energy lifeline.
The operation has not been without cost. On June 9, Iranian forces shot down an AH-64 Apache helicopter near the Omani coast. The crew survived — rescued by a Corsair unmanned surface vessel operated by the Navy's Task Force 59, according to Defense One. It marks the first time an unmanned boat has carried out a combat search-and-rescue mission, a milestone that is likely to speed up the U.S. military's use of AI-driven vessels in the region.
CENTCOM officially denied participation in "offshore STS operations" even as satellite evidence showed military overwatch of the transfers. Spokesperson Capt. Tim Hawkins confirmed only the use of Task Force 59 unmanned vessels for "rescue and surveillance," Reuters reported. The gap between the official denial and the visual evidence has drawn sharp attention from international legal experts.
The shadow transits prevented a full global supply shock, but not a painful one. Oil hit $107 per barrel in May as the Strait closure choked off a waterway that normally carries 20 million barrels per day, according to the EIA. The U.S. operation moved roughly 1 million barrels per day — significant, but only 5% of normal flow. China drew down its 1.2-billion-barrel strategic stockpile by about 1 million barrels per day to cushion the blow.
Prices dropped 4% immediately after Trump announced an interim peace deal on June 14, Axios reported. Atlantic Council analyst Victoria J. Taylor cautioned that while the "tactical achievements" of moving oil were real, they did not equal "strategic success" as long as the Strait remained formally closed. The June 19 signing will be the true test of whether the shadow network — and the crisis that created it — is finally over.
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