DryShips Inc. (DryShips) is a holding company engaged in the ocean transportation services of drybulk cargoes and crude oil worldwide through the ownership and operation of drybulk carrier vessels and oil tankers and offshore drilling services through the ownership and operation of ultra-deepwater drilling units. As of December 31, 2011, it owned and operated two fifth generation ultra-deepwater, semi-submersible offshore drilling rigs, the Leiv Eiriksson and the Eirik Raude, and four sixth generation, advanced capability ultra-deepwater drillships, the Ocean Rig Corcovado, the Ocean Rig Olympia, the Ocean Rig Poseidon and the Ocean Rig Mykonos. As of December 31, 2011, it owned and operated four Aframax tankers, Saga, Daytona, Belmar, and Calida, and one Suezmax tanker, Vilamoura. On August 24, 2011, DryShips acquired all of their shares of OceanFreight Inc. In january 2013, it sold two of its tankers under construction at Samsung Heavy Industries, Esperona and Blanca.