The French oil and gas company Total says it has suspended the operations at some Leuna refinery units of 230,000 barrels per day in Germany for technical checks after the prolonged situation of contaminated Russian crude oil.
Total said it carried out the controls to control any long-term complications associated with the contaminated Russian crude oil.
"It is expected that operations will resume on Saturday using alternative deliveries via Gdansk (in Poland)," the company said in a statement.
"With the continuing problems associated with the Druzhba pipeline, the capacity of the refinery remains limited."
Total added that efforts will be made to limit the effect on the supply of gasoline, diesel and heating oil to customers.
Totally refused to give details about the units that were discontinued. Industry Monitor Genscape said earlier Friday that the 112,000 bpd vacuum distillation unit at the refinery was one of the units that was shut down.
Oil export flows in Russia have been disrupted since April when a high content of organic chloride was found in crude oil via the Druzhba pipeline to the Baltic port of Ust-Luga and other European countries.