Valaris Limited, formerly known as EnscoRowan plc, is a global offshore drilling contractor headquartered in London, United Kingdom. The company provides offshore drilling services to the oil and gas industry worldwide. Valaris has a rich history that dates back to 1972 when the company was originally established as Blocker Energy Corporation.

Over the years, it has grown through mergers and acquisitions, and in 2019, Ensco plc merged with Rowan Companies to form EnscoRowan plc, which was later renamed Valaris Limited. The merger positioned Valaris as the world's largest offshore drilling company with a diverse fleet of drilling rigs. The company's headquarters is located in London, England.

It serves as a central hub for the company's global operations, overseeing strategic decision-making, corporate functions, and financial management. Valaris primarily offers contract drilling services with a focus on deepwater, harsh environment, and midwater drilling solutions. The company operates a fleet of advanced drilling rigs, including drillships, semisubmersibles, and jackups.

These rigs are used to drill offshore wells, provide production support, and perform various other drilling-related activities. Valaris operates globally, serving major oil and gas companies across various regions, including the Gulf of Mexico, Brazil, West Africa, Middle East, Asia Pacific, and Europe. The company has established a strong presence in these regions and is considered one of the leading players in the offshore drilling industry.

In terms of market position, Valaris competes with other global offshore drilling contractors such as Transocean, Seadrill, and Noble Corporation. Despite facing challenges due to the downturn in the oil and gas industry in recent years, Valaris has maintained a significant market share and continues to secure contracts with major operators. There have been notable events and achievements for Valaris.

In addition to the merger with Rowan Companies, the company has also made strategic partnerships, such as a joint venture with Saudi Aramco in 2020 to own and operate offshore drilling rigs in Saudi Arabia. These partnerships and acquisitions strengthen Valaris' market position and expand its reach in key regions. As of the latest available information, Valaris is actively operating its drilling fleet globally, adapting to market conditions, and seeking new opportunities for growth.

The company remains dedicated to providing safe, efficient, and reliable drilling services to its clients while navigating the complex challenges of the offshore drilling industry