Kathimerini | Greek firm refuses to refuel Iran oil tanker due to sanctions Reuters ATHENS/LONDON Nov 28 (Reuters) - A Greek firm has refused to refuel an Iranian-owned tanker flying the Tanzanian flag, the company said on Wednesday, in one of the first such cases to show European sanctions are taking their toll on Iran's oil trade. Greek Company Says It Refused to Refuel Iranian Tanker Iran Tanker Cargo Investigated Off Greek Coast Amid EU Ban |