Okeanis Eco Tankers Accepts Delivery of Its Fifth New VLCC 28 August 2019 Okeanis Eco Tankers has taken delivery of Nissos Donoussa, a very large crude carrier (VLCC) newbuild.Author: Capt. Johnhttps://worldmaritimenews.com/archives/282277/okeanis-eco-tankers-accepts-delivery-of-its-fifth-new-vlcc/