With R8 being transferred from Swan Hellenic to her sister line, Princess cruises, I decided to update the above research.

All EIGHT (R1 through R8) are actually owned by a company known as Cruise Invest Managaement. R1, R2, and R5 are chartered to Oceania. R3 and R4 are chartered by Princess. R8 will be moving to Princess. R6 (now known as Blue Dream) and R7 (now known as Blue Moon) are operated by Pullmantur.

Anyone know which ship will become Marina?

By the way, Carnival has started canibalising their lines. When they move the Minerva II (R8) from Swan Hellenic, that line will have no ships. Who knows whats next; maybe they will move the triplets to Princess, too.