The words "No Money for Murderers, Stop the Oil and Gas Trade" are projected by activists onto the Russian consulate in Frankfurt, Germany, April 4, 2022. Europe is discussing a boycott of Russian oil over the Kremlin's invasion of Ukraine. As Russia's biggest customer for oil, the 27-country European Union could deal a blow to President Vladimir Putin's state finances. But Europe would face higher prices and such a move would send an oil shock through a global economy that's still rebounding from the COVID-19 pandemic. (AP Photo/Michael Probst, file)