"2005Z"^^ . . . . "2011Z"^^ . . . . "Aker Drilling, was a Norwegian drilling rig operation company; based in Stavanger, Norway and majority owned by the Aker Group. It was listed on Oslo Stock Exchange under the ticker - 'AKD'. In October 2011, it was amalgamated into global operations of Transocean and renamed to Transocean Norway Drilling AS, after the completion of the US$1.43 billion acquisition of Aker Drilling by Transocean Ltd."@en . . . "Acquired byTransocean"@en . "Aker Drilling"@en . .