The document discusses three offshore drilling rigs and platforms: 1) Deepwater Nautilus is a fifth-generation, ultra-deepwater semi-submersible drilling unit built in 2000 that can operate in water depths up to 8,000 feet and drill down to 30,000 feet. 2) URSA and Bootes are two drilling wellhead platforms and living quarters located off the coast of China in the South China Sea. 3) Rowan Gorilla VI is a jackup drilling rig built in 2000 with a water depth rating of 400 feet and maximum drilling depth of 35,000 feet.

1. Deepwater Nautilus Deepwater Nautilus is a fifth-generation, RBS-8D design, ultra-deepwater, column-stabilized, semi-submersible mobile offshore drilling unit, designed to drill subsea wells for oil exploration and production. Designed by Reading & Bates RBS-8M and built by Hyundai Heavy Industries in 2000 at the Ulsan shipyard in South Korea. Deepwater Nautilus can operate at water depths up to 8,000 feet and has drilling depth down to 30,000 feet Michael Butler’s Photographic Project File

2. Devon Energy China, Ltd: URSA (Pan Yu, 4-2) and Bootes (Pan Yu, 5-1) Field development Project Description: Platforms URSA (Pan Yu 4-2) and Bootes (Pan Yu 5-1) located in the South China Sea. Project Scope: Engineering, Procurement, Construction, Transportation / Installation, Offshore Hook-up and Commissioning of 2 Drilling Wellhead Platforms, 2 Living Quarters and 2 Jackets. This was a Joint Venture between National Oil Well Varco and LS-Machining Lanzhou PRC. Project design and top sides manufacturing in the city of Lanzhou, Gan Su Provence, Peoples Republic of China Michael Butler’s Photographic Project File

4. Jack Ryan Drill Ship Michael Butler’s Photographic Project File