ANKARA (Turkey), February 11 (SeeNews) – Turkish integrated energy company Turcas Petrol [BIST:TRCAS] said its unit Turcas Rafineri Yatirimlari has started talks with Rafineri Holding, a unit of Azeri state-owned oil and gas firm Socar, on the sale of a 13.5% stake in the Star Refinery project in western Turkey.