UPDATE 1-Russia's Gazprom Neft partners with Petrovietnam to tap Arctic oil
November 25, 2014 at 09:09 AM EST
SOCHI, Russia, Nov 25 (Reuters) - Russia's Gazprom Neft , the oil arm of the world's top gas producer Gazprom , agreed on Tuesday to develop Russia's Dolginskoye offshore Arctic oil field jointly with Vietnamese state energy company Petrovietnam.