Aker Drilling is a Norwegian

Norway

Norway , officially the Kingdom of Norway, is a Nordic unitary constitutional monarchy whose territory comprises the western portion of the Scandinavian Peninsula, Jan Mayen, and the Arctic archipelago of Svalbard and Bouvet Island. Norway has a total area of and a population of about 4.9 million...

 drilling rig

Drilling rig

A drilling rig is a machine which creates holes or shafts in the ground. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells, or they can be small enough to be moved manually by one person...

 operation company

Company

A company is a form of business organization. It is an association or collection of individual real persons and/or other companies, who each provide some form of capital. This group has a common purpose or focus and an aim of gaining profits. This collection, group or association of persons can be...

. It is part of the Aker Group

Aker ASA

Aker ASA is a Norwegian holding company engaged in offshore fishing, construction and engineering. The company is listed on Oslo Stock Exchange and is controlled by Kjell Inge Røkke with 66.66% ownership through TRG Holding...

 and is listed on Oslo Stock Exchange

Oslo Stock Exchange

The Oslo Stock Exchange serves as the main market for trading in the shares of Norwegian companies. It opens at 9:00am and closes 5:30pm local time...

. The company has its headquarters in Stavanger

Stavanger

Stavanger is a city and municipality in the county of Rogaland, Norway.Stavanger municipality has a population of 126,469. There are 197,852 people living in the Stavanger conurbation, making Stavanger the fourth largest city, but the third largest urban area, in Norway...

, Norway.

There was previously in the 1970s a different company called Aker Drilling, also that one being part of the Aker Group. That company is now part of Fred. Olsen Energy

Fred. Olsen Energy

Fred. Olsen Energy is a Norwegian offshore drilling rig company, offering services for the offshore industry within development and production of oil and gas. The company operates in two segments; Offshore Drilling and Engineering & Fabrication, the latter of which includes the Northern Irish...

.

Aker Drilling owns two Aker H-6e type 6th generation semi-submersible

Semi-submersible

A semi-submersible is a specialised marine vessel with good stability and seakeeping characteristics. The semi-submersible vessel design is commonly used in a number of specific offshore roles such as for offshore drilling rigs, safety vessels, oil production platforms and heavy lift cranes.The...

 drilling rigs, Aker Barents and Aker Spitsbergen, designed by Aker Solutions.

On 15 August 2010, Transocean

Transocean

Transocean Ltd. is one of the world's largest offshore drilling contractors. The company rents floating mobile drill rigs, along with the equipment and personnel for operations, to oil and gas companies at an average daily rate of US$282,700...

made a US$1.43 billion takeover bid for Aker Drilling. Under the transaction, Transocean has made a voluntary NOK26.50 ($4.83) per share cash offer for all outstanding shares in the company.