KIEV, May 6 – The total sum of claims lodged by Russia's OAO Gazprom against NJSC Naftogaz Ukrayiny with the Arbitration Institute of the Stockholm Chamber of Commerce is estimated at $23.837 billion.

This figure is mentioned in Naftogaz's 2014 non-consolidated report audited by Deloitte & Touche, published in the National Securities and Stock Market Commission's information disclosure system.