The requested vessel with name AEGEAN SEA and MMSI:0 and IMO:7312452 is temporary not in our database.
Perhaps you mean one of the following ships:

Vessel name IMO MMSI In range Destination Last report
AEGEAN SEA 8644333 367361050 BOSTON Dec 13, 2017 20:56 UTC
AEGEAN SEA 8008292 636013057 May 17, 2015 17:20 UTC
AEGEAN.SEA 8628858 237374600 PERAMA Mar 26, 2015 16:36 UTC

Also, you may try to find the vessel in our comprehensive Vessels Database or track this ship on the map.