Russia failed to sell a huge batch of oil, a sign that soon-to-be imposed sanctions against its state oil giant are playing havoc with the energy industry that undergirds its bruised economy. Moscow maintained a brisk pace of energy exports in the two months after the invasion, bringing in revenue that Kyiv says funds the Kremlin war machine. Many U.S. allies left oil and gas shipments out of their harshest sanctions on Russia. Importers in India and elsewhere swooped in to buy cheap Russian barrels at a time of rocketing energy prices. But exports hit a snag in recent days when Rosneft ROSN 2.86% Oil Co. struggled to find buyers for enough oil to fill a fleet of tankers, traders familiar with the sale said. The producer, in which the government owns a large minority stake, had […]