Greece's Okeanis Eco Tankers (OET) is considering its options after failing in a bid to buy back four VLCCs it sold to Ocean Yield.

Oslo-listed OET said an arbitration tribunal had decided it did not have the right to reacquire the ships that it sold to the Norwegian owner on a charterback deal.

OET had served notice last October that it would buy the vessels for 103% of the cumulative outstanding lease amount, plus certain breakage fees.