"As for the contract price, in the second quarter, taking into account the granted discount, the price is $247.2. Without discount in the third quarter it will be $287.15, and $262.5 in the fourth," Medvedev told reporters.
He added that the issue of discounts is currently being discussed.
Moscow agreed to grant a three-month discount of $100 to Kiev in October 2014 before extending the European Commission-brokered deal for another three months, until the end of June.
On Monday, Ukrainian Energy Minister Volodymyr Demchyshyn said that Kiev would not buy Russian gas in the third quarter of 2015 if Gazprom did not guarantee a discount that would make Russian gas cheaper than reverse deliveries from Europe.
Hungary, Slovakia and Poland have re-exported Russian gas to Ukraine by reversing the flow in transit pipelines.
