The Treasury Department said it will not give Exxon Mobil a waiver to drill for oil in Russia despite U.S. sanctions against the country. Treasury Secretary Steven Mnuchin said Friday in a statement that the administration, “will not be issuing waivers to U.S. companies, including Exxon, authorizing drilling prohibited by current Russian sanctions,” according to the Associated Press. Exxon was seeking a waiver in order to continue drilling in the Black Sea, the AP reports.