Poland has tapped into its emergency oil reserves in order to keep key refineries operating after contaminated crude oil forced the shutdown of the Druzhba oil pipeline carrying oil from Russia to customers in Europe, the International Energy Agency (IEA) said on Tuesday. “Poland has notified us that they are releasing emergency oil stocks to maintain normal operations at their two refineries supplied on the line,” S&P Global Platts quoted a statement from the IEA. Last week, several countries, including Poland, shut down the…