The United States has introduced sanctions against Serbia’s main oil supplier, Naftna Industrija Srbije, or NIS, which is majority-owned by Russia’s Gazprom Neft, according to the AP report. Serbia’s president warned that the move could have unforeseeable consequences for the country, which depends heavily on Russian oil and gas supplies and faces winter demand at a sensitive moment.

The report says NIS had failed to secure another postponement of the sanctions and that its special license from the U.S. Treasury Department had not been extended. That matters because the license had allowed operations to continue unhindered. Without it, the company’s ability to keep importing and distributing fuel becomes less certain, even if the physical flow of oil is not immediately halted.

Serbia’s vulnerability is structural. The AP report says the country relies almost entirely on Russian gas and oil, which it receives mainly through pipelines in Croatia and neighboring states. Gazprom Neft also owns Serbia’s only oil refinery. Those facts explain why the sanctions are being treated in Belgrade not as a narrow company issue but as a national economic problem.

President Aleksandar Vucic said the sanctions would have extremely dire consequences and urged people not to panic. NIS tried to calm those same worries, saying it had enough stored supplies to keep operations going for a longer period and warning only that some foreign bank card payments could be disrupted at gasoline stations. That split between government alarm and company reassurance is part of the story: the country is trying to project stability while acknowledging real risk.

The sanctions are also being interpreted through a bigger geopolitical lens. Serbia has formally sought European Union membership but has refused to join Western sanctions against Russia over the war in Ukraine. The AP report says that choice has left Belgrade balancing ties with Moscow against pressure from Washington and the West. The NIS case shows how that balancing act can hit domestic consumers when energy infrastructure sits inside geopolitical disputes.

There is another layer of political strain at home. Serbia has been shaken by anti-government protests for months, and the report says Vucic is already under pressure from that unrest. The fuel issue therefore lands in a country where trust in the government is already fragile. Any hint of shortages, price spikes or payment problems could quickly become a broader political headache.

The AP report also quotes an analyst who called Serbia collateral damage in a power game between Russia and the United States. That is a useful summary of the moment. Serbia is not the central actor in the sanctions fight, but it may pay the practical price if the pressure campaign affects deliveries, pricing or refinery operations.

For now, the government is asking people not to panic and the company says there are buffers in place. But the decision adds another layer of uncertainty ahead of winter, and it puts a fuel-dependent country in the middle of a larger confrontation over Russia, energy and Europe’s strategic future.