Serbia secures US sanctions waiver for its NIS oil firm, energy minister says | Reuters Skip to main content Exclusive news, data and analytics for financial market professionalsLearn more aboutRefinitiv A drone view shows Serbia's majority Russian-owned NIS oil refinery in Pancevo, Serbia, November 27, 2025. REUTERS/Marko Djurica Purchase Licensing Rights, opens new tab Companies Abu Dhabi National Oil Co Follow Gazprom Neft' PAO Follow Gazprom PAO Follow NIS operates Serbia's only oil refinery in the town ...