Russia 's state-run gas company, OAO Gazprom (GAZP.RS), expects retroactive discounts to European buyers for 2013 to amount to less than $1 billion, the company's deputy chief executive said Tuesday.

Alexander Medvedev said that following recent negotiations, the discounts "would not exceed $800-$900 million."

He had earlier said that talks could be completed this month. He did, however, add that the figure doesn't include any agreement with
Germany 's RWE AG (RWE.XE), which has taken Gazprom to arbitration.