|Type||Publicly traded limited company|
|Traded as||OSE: SDRL, NYSE: SDRL|
|Key people||John Fredriksen (Chairman), Per Wullf (CEO)|
|Products||Drilling rig lease and operation|
|Revenue||US $4.041 billion (2010)|
|Operating income||US $1.625 billion (2010)|
|Profit||US $1.117 billion (2010)|
|Total assets||US $17.50 billion (end 2010)|
|Total equity||US $5.937 billion (end 2010)|
|Employees||9,800 (end 2010)|
Seadrill is an offshore drilling company domiciled in Bermuda and managed from London. Seadrill has operations in countries that include Angola, Brunei, the Republic of Congo, Indonesia, Malaysia, Nigeria, Norway, Thailand, Brazil, US and the United Kingdom among others. The company operates Semi-submersibles, Jack ups and Drillships. It sold the majority of their Tender rig and Semi-Tender operation to SapuraKencana in 2012. Tender rigs T-15, T16 and the West Vencedor were sold to Seadrill Partners. The company is listed on Oslo Stock Exchange and the New York Stock Exchange. Operational headquarters is situated in London, United Kingdom. Seadrill Management AS was originally situated in Stavanger, but after a vote to move in 2012, it is from 2013 situated in London. Other major company locations are found in Singapore, Houston, Rio, Dubai and Stavanger. John Fredriksen has a major ownership in the company.
Seadrill was established in May 2005 and listed on Oslo Stock Exchange in November. By July 2005 it had acquired the drilling company Odfjell and by September 2006 it owns a controlling share of Smedvig and Eastern Drilling. The ownership in Smedvig was acquired in competition with Noble.
In 2011 Seadrill carved out six of its units and formed the company North Atlantic Drilling which operates in the North Atlantic Basin. It is a part of the Seadrill concern as it is 74% owned by the company.  In 2013 Seadrill acquired more than fifty percent (50%) of the outstanding shares in Sevan Drilling and stated in their announcement of the purchase that they would support Sevan Drilling.
As of Aug. 2012 Seadrill operates the following rigs:
Seadrill's jackup West Atlas on Montara field about 690 kilometers offshore of Darwin, Australia caught fire on November 1, 2009 after the field had been leaking oil for ten weeks. The vessel operator was the Thai firm PTTEP.
- "Annual Report 2010". Seadrill. Retrieved 5 May 2011.
- "Seadrill forces Ensco out of Scorpion race". Upstream Online (NHST Media Group). 2010-05-31. Retrieved 2010-07-03.
- Heirs Holdings invests in Seadrill for Nigerian offshore projects, Africa: Oil Review Africa, 2013
- RIGZONE. Dice Holdings, Inc, n.d. Web. 09 Aug. 2012. |url=http://www.rigzone.com%7C.
- Perry, Michael (1 November 2009). "Leaking Timor Sea oil rig catches fire". Reuters. Retrieved 2009-11-01.