Abstract
The U.S. sanctions on two Russian oil giants, Rosneft and Lukoil, came into effect on Nov 21, 2025. These sanctions affect not only companies per se but also their counterparties worldwide under the secondary sanctions clause. For the EU, these sanctions highlight a central trade-off: how to exert real pressure on Russia without fracturing political alignment among EU Member States. This brief discusses the consequences of the sanctions, including their immediate impact on the firms and Russia’s budget, the new tensions exposed in Europe’s energy policy, and the broader lessons for the next generation of EU sanctions tools.