Russia’s insistence that its “unfriendly” nations pay in rubles for Russian natural gas risks disrupting European supplies as soon as this week as the deadline set by Putin for moving to ruble payments is drawing closer. Europe, which depends on Russian natural gas for more than one-third of its demand—with some countries, including the biggest economy Germany, depending on Russia for half of its consumption—has rejected the gas-for-rubles idea, saying it would be a breach of contracts to switch the currency…
