NIS seeks US sanctions waiver for continued operations as MOL deal negotiations drag on

Serbia’s sole oil refinery is back at the US Treasury’s door, hat in hand, asking for permission to keep the lights on. NIS, formally known as Naftna Industrija Srbije, filed a fresh sanctions waiver request with the Office of Foreign Assets Control (OFAC) on June 26, hoping to extend the temporary licenses that have kept crude oil flowing into a country with exactly one refining operation.

The filing follows a pattern that has become almost ritualistic since US sanctions landed on NIS in January 2025. Temporary waivers get issued, deadlines approach, new requests get filed, and Serbia holds its breath. This time, the stakes are tied directly to advancing negotiations that could finally resolve the underlying problem: getting Russian ownership out of Serbia’s most critical energy asset.

A rolling series of last-minute reprieves

NIS is the country’s only oil refiner, and it has been majority-owned by Russia’s Gazprom Neft since 2008. Gazprom Neft holds between 45% and 56% of the company, a stake that became a serious liability when the US decided to crack down on secondary sanctions risks tied to Russian corporate ownership.

The US response has been a series of carefully calibrated temporary licenses. In April 2026, OFAC granted a 60-day extension. Then came a 15-day extension around June 16-17. Now, barely a week later, NIS is filing again with a July 1 deadline looming over the current waiver period.

Each extension has been explicitly tied to progress on one thing: getting the Russian stake transferred to a new owner.

The MOL deal: Serbia’s exit ramp

That new owner, if everything goes according to plan, is Hungary’s MOL Group. The Hungarian energy conglomerate has been in negotiations to acquire Gazprom Neft’s stake in NIS, a deal that would theoretically remove the sanctions trigger entirely. The latest waiver period runs through July 1, 2026, which means the June 26 filing is essentially NIS asking for yet another bridge to get across.

For MOL, the acquisition would expand its regional footprint in southeastern Europe, adding Serbian refining capacity to a portfolio that already spans Hungary, Slovakia, and Croatia.

What this means for energy markets and investors

The NIS situation is a case study in how sanctions create cascading complications that extend far beyond the intended target. The US imposed sanctions to limit Russian economic influence. The direct consequence has been a rolling administrative burden on Serbia, a non-combatant country that happens to have a Russian-owned refinery within its borders.

The risk that investors should watch most closely is a scenario where the MOL deal stalls indefinitely and OFAC loses patience with the waiver cycle. A denial would force NIS to halt crude imports, creating an immediate energy crisis in Serbia and potentially destabilizing fuel markets across the western Balkans.

For now, the pattern continues. NIS files, OFAC evaluates, and Serbia waits. The July 1 deadline will be the next inflection point.

Disclosure: This article was edited by Editorial Team. For more information on how we create and review content, see our Editorial Policy.