German Economy and Energy Minister Katherina Reiche (L) walks with Brandenburg's State Premier Dietmar Woidke (C) and PCK refinery manager Ralf Schairer (R) as they visit the PCK Schwedt oil refinery in Schwedt, northeastern Germany, on May 11, 2026. Russia stopped the pipeline flow of Kazakh oil from May 1, 2026 to the PCK refinery, run by the German subsidiary of Russia's state-owned oil company Rosneft, which supplies much of the Berlin region and the capital's international airport with fuel. (Photo by Patrick Pleul / POOL / AFP via Getty Images)