U.S. Employs Tanker-to-Tanker Oil Transfers in Persian Gulf

The United States has begun using tanker-to-tanker oil transfers in the Persian Gulf, according to Reuters. The practice, known as transshipping, involves transferring cargo between vessels at sea rather than through conventional port facilities.

Iran has employed similar transshipment methods for years to move crude oil while circumventing international sanctions. Reuters reported that U.S. officials have adopted the same approach to move petroleum from the region.

The timing aligns with ongoing diplomatic negotiations. President Trump announced that the U.S. and Iran had reached an agreement affecting shipping lanes and oil trade. Trump stated the Strait of Hormuz would operate as "toll-free" and indicated the strait would reopen fully by Friday, according to the Wall Street Journal and other outlets.

Other officials indicated negotiations involved resolving unfinished details, according to reporting from multiple news organizations. CNN reported that despite Trump's statements about the strait reopening, most commercial vessels remained cautious about resuming transit through the waterway.

Transshipping itself represents a standard maritime practice used across global trade for logistical and economic reasons. The method allows vessels to transfer cargo without entering ports, reducing time and operational costs. Whether the U.S. use of this technique complies with existing agreements or legal frameworks remains unclear from available reporting.

Reuters attributed its account to unnamed sources familiar with the matter. The publication did not report receiving on-the-record confirmation from U.S. government officials regarding the scope or purpose of the operations.