Gazprom Neft, the oil arm of Gazprom, has bought 17.97 percent of shares in Sibir Energy, which develops oil and gas fields in Siberia, Gazprom Neft said on Monday.
Gazprom Neft did not disclose the value of the deal.
Gazprom Neft now holds 51.69% of Sibir Energy, the company said.
In July, Gazprom Neft sold a 3.02 percent stake in Sibir Energy to the Moscow government.
Sibir Energy's core assets are the Salym oil fields in the Siberian Nefteyugansk area, operated together with Dutch Shell via a joint venture. The company also holds slightly less than 50% of shares in the Moscow Oil Refinery and 138 filling stations in the city of Moscow.
MOSCOW, November 29 (RIA Novosti)