[contentcards url=”https://sputniknews.com/20221012/druzhba-oil-pipeline-operator-pern-reveals-no-3rd-parties-guilt-behind-leak-1101786125.html” target=”_blank”] By Sputnik International WARSAW, October 12 (Sputnik) – Polish operator of the Druzhba oil pipeline, Pern, did not reveal the guilt of…