Supplies of Russian oil to Poland via the Druzhba pipeline have halted, Daniel Obajtek, the chief executive officer of the PKN Orlen oil refiner and petrol retailer, said on February 25. "We're effectively securing supplies. Russia has halted supplies to Poland, for which we are prepared. Only 10% of crude oil has been coming from Russia and we will replace it with oil from other sources," Obajtek wrote on Twitter. To read the original story by Reuters, click here.