A background report published by a leading transparency watchdog group in Tbilisi highlights the sketchy ownership structure of a tanker that delivered oil from Russia to Georgia, raising suspicions that the shipment was part of a sanctions-busting endeavor. The backgrounder published by Transparency International-Georgia, titled Kulevi Oil Refinery – Part of a Sanctions Evasion Scheme?, chronicles the voyage of the tanker Kayseri, which sailed out of the Russian port of Novorossiysk…