The punishing sanctions that the United States and European Union have so far announced against Russia for its invasion of Ukraine include shutting the government and banks out of global financial markets, restricting technology exports and freezing assets of influential Russians. Noticeably missing from that list is the one reprisal that would cause Russia the most pain: choking off the export of Russian fuel.The omission is not surprising. In recent years, the European Union has received nearly 40 percent of its gas and more than a quarter of its oil from Russia. That energy heats Europe’s homes, powers its factories and fuels its vehicles, while pumping enormous sums of money into the Russian economy.Losing out on tho …
