MOSCOW, Oct 17 (Reuters) - Russia's Rosneft, theworld's biggest listed oil producer by output, said on Fridaythe fall in oil prices was not critical for the company and itsaw "no reason for concern".
"The company's projects remain economically viable at pricesmuch lower than current levels," Rosneft said in emailedcomments.
Brent has lost more than 20 percent of its value since Juneand was dragged down earlier in the week by signals from keyOPEC members that the group was unlikely to intervene. It is nowtrading at $85.84 per barrel. (Reporting by Katya Golubkova, editing by Elizabeth Piper)