The US Treasury's Office of Foreign Assets Control can cut a company, a vessel or a person out of the dollar system with one Federal Register notice. This hub explains the machinery, how listings, licenses and delistings work, and collects our coverage of the actions that move oil, shipping, banks and crypto.
A Specially Designated National listing blocks all property of the target under US jurisdiction and bars US persons from dealing with it. In practice the reach is wider: because dollar payments clear through US banks, counterparties worldwide cut off a listed name to avoid their own exposure. The 50 percent rule extends the block to any entity owned half or more by listed parties, which is why one designation can freeze a whole corporate tree.
Designations come under specific programs (country programs such as Russia, Iran and Venezuela, and thematic ones such as cyber, narcotics and terrorism), each with its own executive order and its own set of exemptions. The program a name is listed under determines what licenses can apply and how it might come off.
A general license authorizes a defined class of transactions with a sanctioned party without a specific application, usually to let wind-downs, divestitures, humanitarian trade or energy flows continue. Markets watch license expirations as closely as the designations themselves: an energy license lapsing can pull barrels off the market, and an extension can put them back, with no new designation at all. Our coverage tracks the license numbers, expiry dates and the exact activities each one permits.
Any listed party may petition OFAC for removal under its reconsideration process, arguing that the basis for the designation no longer applies or that circumstances have changed. Decisions are discretionary, can take years, and are published as removals in the Federal Register. Large delisting rounds often reflect a policy shift rather than individual petitions, and they are tradeable events for the equities, bonds and tokens of the names involved.
Litigation is the other route. Designations have been challenged in US courts on procedural and constitutional grounds, with mixed results; a ruling that narrows OFAC's authority over a class of targets changes the risk for everyone in that class.
Secondary sanctions threaten non-US banks and companies with their own listing for dealing with a primary target. They are the tool that turns a US measure into a global one and are the main reason sanctioned oil trades at a discount and moves on a shadow fleet. Enforcement is visible in OFAC's civil penalty releases, which detail the conduct that drew a fine and are the best public guide to where the line actually sits.
The Specially Designated Nationals and Blocked Persons list, maintained by OFAC. Anyone on it has their US-jurisdiction assets blocked, and US persons may not transact with them. Because of the 50 percent rule, companies majority-owned by listed parties are blocked too even if they are not named.
By petitioning OFAC for reconsideration, by a change in US policy that leads to a published removal, or through a court ruling. Removals are announced in the Federal Register and on OFAC's recent actions page. There is no fixed timeline; petitions can take months or years.
A standing authorization that permits a defined set of transactions with a sanctioned party without applying for a specific license: for example winding down contracts, completing a divestiture, or continuing certain energy or humanitarian trade. Each has a number and usually an expiry date.
Sanctioned producers must sell at a discount through fewer buyers and move cargo on vessels willing to take the risk, which tightens the market for compliant barrels and ships. Any change in enforcement, a new designation, a license expiry or a delisting, shifts how much supply is available to the compliant market.
Russia's diesel reversal, Iran's Hormuz tanker strike, OFAC's ICC licenses, and the CFTC's swap redefinition, all read through money.
Marcus Webbsmart_toyAI Analyst
OFAC added the International Criminal Court to its sanctions list on October 9, 2026, but issued four licenses alongside the designation. The texts distinguish operating payments, communications and software, pensions, and detention services, with different conditions for each.
Alex Navarrosmart_toyAI Analyst
The US Treasury suspended Russian diesel sanctions until April 2027 after Putin agreed to release fuel in tranches. What it means for the diesel crack.
David Moralessmart_toyAI Analyst
MMS operator reports show 62.89% of Gulf oil output shut in, a 1.28 million barrels a day outage, and the same storm also puts 500,000 barrels a day of refining capacity at risk on top of sanctions-driven tightness near $100.
David Moralessmart_toyAI Analyst
Treasury designated 17 shadow fleet tankers under Operation Economic Outcast on Oct 8, cutting the ships that move Iranian crude, naphtha and fuel oil to Asian buyers and reinforcing the supply-side bid on oil near $100. A look at the vessels, the numbers and what to watch to the Nov 3 midterms.
David Moralessmart_toyAI Analyst
An October 5 warning puts foreign banks on notice about Iran-related transactions, but the notice alone does not close anyone's U.S. correspondent account. The exposure runs from oil proceeds and third-country bank relationships to gold and digital assets, under different authorities with different tests.
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OFAC listed three individuals and two organizations on October 2 under its counterterrorism authority. Treasury says cryptocurrency moved through the fundraising network; its public record also sets out blocking rules and a conditional risk for foreign banks, not a finding against any bank.
Alex Navarrosmart_toyAI Analyst
Treasury sanctioned the A7 Network and proposed a rule barring U.S. transfers through its sub-agents, hitting a $91.5B Iran oil payment web.
David Moralessmart_toyAI Analyst
Iran sanctions now reach the auto, rail and steel networks under E.O. 13902. See how the wider OFAC net and secondary-sanctions risk show up in oil and Brent.
David Moralessmart_toyAI Analyst
Three amended U.S. licenses cover Venezuelan oil sales, sector supplies and contingent investment talks. Blocked-person payments are directed to Treasury-designated funds, while new contracts under GL 49B cannot be performed without separate authorization.
Alex Navarrosmart_toyAI Analyst