The vessels have been fixed at a juicy rate of $16,500/day, according to the sources.

The quartet are the 50,900-dwt vessels Green Planet, Green Sea, Green Sky and Green Hellas.

All four vessels were built at Dae-Sun and were delivered between May and July last year.

They are understood to have traded on the spot market since their delivery, in the triangulation trade of vegetable-palm oils-and clean petroleum products.

Aegean Shipping Management is part of the Dimitris Melissanidis-controlled group of companies that includes New-York-listed Aegean Marine Petroleum Network.