Treasury Secretary Scott Bessent announced Monday that the U.S. is launching "Operation Economic Outcast"—a campaign to cut off Iran's oil revenues and access to dollar-denominated finance. The Treasury designated more than 60 individuals, vessels and entities worldwide that Washington says have helped Tehran sell oil, acquire nuclear and missile technology, and conduct cyber attacks.
"An economic engagement of any kind with this murderous regime will expose those responsible to the full reach of American power," Bessent said at the press conference.
Bessent said the U.S. has "mapped every node, every facilitator and every network that Iran has used to smuggle oil and evade sanctions." The framing signals that Monday's designations are an opening move in a structured campaign with additional action explicitly promised.
President Trump is calling world leaders with what Bessent described as "specific requests to cease their interactions with the regime." Governments that do not comply will face sanctions within an unspecified timeline—penalties that would cut them off from dollar access regardless of whether they transact directly with sanctioned Iranian entities.
Bessent said he expects a major financial institution to face sanctions before the end of this week but declined to name it, citing preference for quiet diplomacy.
Asked about Chinese banks—widely understood as the primary facilitators of Iranian oil sales and payments—Bessent offered no exemption. "No one is above the reach of U.S. sanctions," he said. Cutting off Iran's main revenue streams without targeting Chinese entities is arithmetically impossible: China absorbs the overwhelming majority of Iranian crude exports and processes the dollar payments that flow from those sales.
The mechanism is dollar exclusion. Entities that continue doing business with Iran risk being cut off from dollar-denominated clearing through U.S. correspondent banks and the SWIFT messaging network. For most financial institutions outside the United States, dollar access underpins trade finance, foreign exchange settlement and cross-border lending. Loss of it is the Treasury's sharpest enforcement tool.
Bessent declined to identify which countries are under U.S. pressure to sever ties with Tehran. The deliberate ambiguity on country names and timelines forces every government with Iranian economic exposure to assume it is on the list.
On the bond market side, reports circulated Monday that Bessent is considering using cash reserves held at the Treasury General Account—the government's operating account at the Federal Reserve—to purchase Treasuries. Such a move would inject liquidity into the bond market without requiring Federal Reserve action, effectively easing financial conditions through the fiscal channel rather than monetary policy. The Fed under Chair Kevin Warsh has held rates steady as it watches inflation data. Bessent has not confirmed the details.
The White House is also preparing tariffs targeting Chinese industrial overcapacity, placing China at the center of two simultaneous U.S. economic offensives: one over Iranian oil payments and financial facilitation, the other over manufactured goods flooding global markets.
