Czech oil refiner Unipetrol has stopped taking oil from the Druzhba pipeline due to chloride contamination detected at the Ukraine-Slovakia border, Czech officials said on Monday, but the Slovak pipeline operator denied contamination had been found. “Unipetrol has stopped taking oil from the Druzhba pipeline due to detected contamination by chlorides. Further tests of samples are underway,” Pavel Svagr, the chief of Czech state strategic reserves, said on Twitter. Slovak pipeline operator Transpetrol, which delivers Russian oil from Ukraine to the Slovak refinery owned by MOL and further to the Czech Republic, contradicted the report, saying it had detected no contamination. Oil transit was running as normal, a company spokeswoman said in a text message, adding that more information would be available on Tuesday. A spokesman for Unipetrol, a unit of Poland’s PKN Orlen, was not immediately available for comment. Russia had interrupted west-bound flows to […]