A small oil transport firm accused of pumping toxic chemicals into Russia’s crude pipeline network that then polluted oil exports to Europe received daily documents from Russian state pipeline monopoly Transneft ( TRNF_p.MM ) giving its oil deliveries a clean bill of health. The documents seen by Reuters certified the oil deliveries from March 30 to April 19, the period when the worst contamination of Russian oil in decades was taking place, at the place prosecutors said was the source of the contamination. Russian prosecutors have detained two executives with the small oil transport firm, which is called Nefteperevalka. Prosecutors identified them as Nefteperevalka General Director Svetlana Balabai and her deputy, Rustam Khusnutdinov. Transneft declined to comment. Prosecutors […]