Italy’s Eni is negotiating the sale of its 32.445% stake in Česká rafinérská, the leading Czech oil refiner, to Russia’s Gazprom, and has informed its partners in the joint venture, Unipetrol and Shell, of its intentions in a letter, Czech Position has learned from a Czech government source. According to the terms of the joint venture, the companies have right of first refusal as regards the sale of shares.