The US has urged Ukraine to halt attacks on Russia’s energy infrastructure, warning the drone strikes risk driving up global oil prices and provoking retaliation, according to three people familiar with the discussions. The repeated warnings from Washington were delivered to senior officials at Ukraine’s state security service, the SBU, and its military intelligence directorate, known as the GUR, the people told the Financial Times. Both intelligence units have steadily expanded their own drone programmes to strike Russian targets on land, sea and in the air since the start of the Kremlin’s full-scale invasion in February 2022. One person said the White House had grown increasingly frustrated by brazen Ukrainian drone attacks that have struck oil refineries, terminals, depots and storage facilities across western Russia, hurting its oil production capacity. Russia remains one of the world’s most important energy exporters despite western sanctions on its oil and gas sector.