How it started
History
BW Offshore originates from the shipping company Bergesen d.y. ASA who delivered its first FSO Berge Sisar in 1982 which it installed and operated at the Block O field offshore Angola. In 2003 Bergesen was acquired by World-Wide Shipping and was 2005 renamed Bergesen Worldwide. In the same year the floating production part of the company was established as a separate company, Bergesen Worldwide Offshore. In 2006 the company was rebranded BW Offshore and listed on the Oslo Stock Exchange.
In 2007, BW Offshore acquired the ownership of Advanced Production and Loading (APL), making the company its technology division. APL which is based in Arendal, Norway and is a specialist in the engineering and supply of offloading and transfer systems for ships and terminals. It has delivered loading equipment for production vessels, storage vessels and shuttle tankers in the North Sea, Africa, Asia, Oceania, Russia, Latin-America, and the USA. In 2006, APL ventured into FPSO contracting by establishing Nexus Floating Production that consequently also became controlled by BW Offshore. In 2010, BW Offshore sold APL to National Oilwell Varco.
In 2010, BW Offshore Limited completed the acquisition of remaining 76.12% stake in Prosafe Production Public Ltd. Prior to the transaction, BW Offshore Limited owned 23.88% and hence, completed the 100% acquisition of Prosafe Production.
From Wikipedia’s article on BW Offshore, shared under CC BY-SA 4.0.2

