Serbia’s only refinery Naftna Industrija Srbije (NIS), majority owned by Russian state energy firms and sanctioned by the United States, said on Wednesday it had applied for a special U.S. license to continue operations until talks for an ownership change conclude. On Tuesday, NIS submitted a new request to the Office of Foreign Assets Control (OFAC) of the U.S. Department of the Treasury for the issuance of a special license that would enable the company to operate without disruptions, the Serbian company said. Gazprom…