The Treasury previously authorized lifting sanctions on 140 million barrels already loaded at sea, which could provide immediate revenue to Iran while aiming to ease high oil prices. The broader U.S. rollback now permits dollar-denominated trade and opens a larger revenue stream for Tehran, potentially dwarfing the earlier one-off authorization. Fresh sanctions on a China-based refinery and about 40 shippers remain intended to constrain other export channels, but enforcement and market responses will shape how much Iran can monetize exports.
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