The company was established in 1996 as Ocean Rig ASA. Between 1997 and 2008, the company was listed on the
Oslo Stock Exchange. In 2010, shares in the company were spun off by
DryShips and the company was listed on
NASDAQ. In 2011, the
Leiv Eirikson finished operations the
Black Sea on contract to
Petrobras and
TPAO and went to the Arctic on contract to
Cairn Energy. In March 2017, the company filed
bankruptcy in the United States. The reorganization was completed in September 2017. Effective January 1, 2018, Pankaj Khanna became President & CEO of the company. In December 2018, the company was acquired by
Transocean. ==References==