Iranian blogger Kamangir offers a tantalising piece of news:
“5 in the morning”, a website close to the reformists, claims that since a month ago Iranian tankers have been travelling in the Persian Gulf under foreign flags [Persian]. Reportedly, as the American ships in the Persian Gulf increased their surveillance on Iranian vessels, tankers operated by the state adopted flags from Cyprus and Malta. The website adds that according to international treaties ships owned by sanctioned countries cannot travel freely.
No other source has verified this news.