An Airbus A321-231 aircraft by German airline Lufthansa (top) flies over the clouds and prepares to land at the Frankfurt International Airport in Frankfurt am Main, western Germany, on June 3, 2026. (Photo by Kirill KUDRYAVTSEV / AFP via Getty Images)

Russia's top liquefied natural gas (LNG) producer Novatek logo is pictured at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg on June 3, 2026. (Photo by Olga MALTSEVA / AFP via Getty Images)

Russia's top liquefied natural gas (LNG) producer Novatek logo is pictured at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg on June 3, 2026. (Photo by Olga MALTSEVA / AFP via Getty Images)

Russia's oil company Rosneft logo is pictured at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg on June 3, 2026. (Photo by Olga MALTSEVA / AFP via Getty Images)

Russia's oil company Rosneft logo is pictured at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg on June 3, 2026. (Photo by Olga MALTSEVA / AFP via Getty Images)

Russian energy giant Lukoil logo is pictured at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg on June 3, 2026. (Photo by Olga MALTSEVA / AFP via Getty Images)

Russian energy giant Lukoil logo is pictured at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg on June 3, 2026. (Photo by Olga MALTSEVA / AFP via Getty Images)

Russia's energy giant Gazprom logo is pictured at the St. Petersburg International Economic Forum (SPIEF) in Saint Petersburg on June 3, 2026. (Photo by Olga MALTSEVA / AFP via Getty Images)