Scott Alan McReaken

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.

Sevan Drilling ASA operates as an offshore drilling contractor, which engages in building and operating ultra deepwater drill rigs. It operates through three business segments: Operations, Construction in Progress and Other. The company was founded on May 31, 2006 and is headquartered in Oslo, Norway.

Scandrill, Inc. provides drilling services. The company was founded in 1977 and is headquartered in Houston, TX.

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.