Greek-operated tanker with Saudi oil cargo sails through Hormuz, ship tracking data shows

Four separate ​supertankers, each carrying 2 million barrels of oil and operated by Iranian tanker group NITC - ​which is under sanctions and linked to the elite Revolutionary Guards, opens new tab - arrived in waters around Singapore on Monday after sailing from Iran before February 28, according to analysis from U.S. advocacy group United ​Against Nuclear Iran, which monitors Iran-related tanker traffic through ship and satellite tracking.