Ragnvald Kavli

Seadrill Ltd. engages in the provision of offshore drilling services to the oil and gas industry. It operates through the following segments: Harsh Environment, Floaters, Jack-up rigs, and Other. The Harsh Environment segment include both semi-submersibles and jack-ups that have a number of design modifications to be able to handle to weather conditions as seen in the North Sea and Canada. The Floaters segment encompasses drilling, completion, and maintenance of offshore exploration and production wells. the Jack-up Rigs segment includes drilling contracts relate to jack-up rigs for operations in harsh and benign environments in shallow water. The Other segment represents management services to third parties and related parties. The company was founded on May 10, 2005 and is headquartered in Hamilton, Bermuda.

North Atlantic Drilling Ltd. provides environment offshore drilling services for national, international, and independent oil and gas companies. Its drilling units include West Phoenix, Alpha, Venture, Rigle, Elara, Linus, Epsilon and West Navigator. The company was founded on February 10, 2011 and is headquartered in Hamilton, Bermuda.

Part of North Atlantic Drilling Ltd., North Atlantic Management AS provides offshore harsh environment drilling services. The private company is based in Stavanger, Norway.

Seadrill is a leading offshore deepwater drilling company, aiming to be the customers' most important partner in making oil and gas available in a safe and cost-effective manner. The company operates a versatile fleet of 50 units that comprises drillships, jack-up rigs, semi-submersible rigs and tender rigs for operations in shallow to ultra-deepwater areas in harsh environment and benign environments.