Valaris Ltd. was formed through the 2019 merger of Ensco plc and Rowan Companies plc, creating one of the world's largest offshore drilling contractors. The company operates across four main segments: Floaters (drillships and semisubmersibles), Jackups, ARO (a 50/50 joint venture with Saudi Aramco), and Other (management services for third-party rigs). Its geographic footprint spans major offshore basins, including the Gulf of Mexico, the North Sea, the Middle East, West Africa, Australia, and Southeast Asia. Valaris generates revenue primarily through day-rate contracts, providing the critical infrastructure and specialized crews required for complex deepwater and harsh-environment well drilling.