US Revives 150-Year-Old Court to Seize Iranian Oil Cargoes
The maneuver relies on the Foreign Sovereign Immunities Act and a little-known provision called the sue-and-attach procedure, which allows the U.S. government to initiate civil proceedings to recover assets linked to terrorism or sanctions violations. Originally invoked during the 1860s to seize Confederate cotton shipments, the mechanism has been revived in recent years to target Venezuelan, Russian, and now Iranian oil cargoes.
How the Legal Machinery Works
The process typically unfolds in three stages:
1. Designation of Sovereign Property – U.S. Treasury Department flags specific tankers, cargo titles, or shipping companies as subject to sanctions or terrorism-related claims.
2. Sue-and-Attach Proceedings – The Justice Department files suit in federal court, requesting an order to attach (freeze) the identified assets. Courts then evaluate whether there's probable cause tying the property to sanctioned activity.
3. Forfeiture Auction or Transfer – If successful, seized oil can be sold at auction, with proceeds funneled into the U.S. Victims of State Sponsored Terrorism Fund.
This approach sidesteps traditional diplomatic channels and international arbitration bodies like the International Court of Justice, where Iran has previously challenged U.S. sanctions measures.
Real-World Precedents and Technical Nuances
Similar seizures occurred in 2023 involving a tanker-load of Venezuelan crude bound for Europe. The DOJ argued the shipment violated executive orders E.O. 13692 and E.O. 13846, both aimed at curtailing authoritarian regimes' access to global markets.
From an operational standpoint, the tactic exploits gaps in maritime law enforcement. Ships flying flags of convenience or registered in third-party jurisdictions often lack clear legal immunity, especially when transiting U.S.-controlled waters or docking at American ports.
Legal scholars note that while effective politically, these actions risk undermining international norms around sovereign asset protection. Critics argue that repurposing antebellum legal tools for modern geopolitics blurs the line between enforceable law and economic warfare.
Strategic Implications Beyond the Law
Oil traders and logistics firms are adapting quickly, rerouting shipments through less predictable corridors. Some have turned to barter arrangements or cryptocurrency settlements to circumvent dollar-denominated systems vulnerable to U.S. jurisdiction.
Meanwhile, Iran continues asserting its right to export energy under UN Charter Article 51 principles of self-defense, claiming U.S. interference constitutes unlawful interference in domestic affairs.
Whether this revived legal strategy achieves long-term policy goals remains uncertain—but it underscores how legacy frameworks still shape contemporary AI-driven sanctions monitoring and enforcement workflows.