SCHWEDT, GERMANY - APRIL 28: In this aerial view the PCK petroleum refinery stands on April 28, 2026 in Schwedt, Germany. The PCK refinery, which produces gasoline, diesel, kerosene and bitumen, receives 20% of its oil from Kazakhstan through the Russian Druzhba pipeline. The Russian government recently announced it will halt the flow of Kazakh oil on May 1. (Photo by Sean Gallup/Getty Images)