Valaris Limited (previously ENSCO-Rowan plc) is an contractor headquartered in Houston, Texas, and incorporated in . It is the largest and company in the world, and owns 52 rigs, including 36 offshore , 11 , and 5 . In 2022, the company's largest customer was (15% of revenues).
[pdf] Test your oil drilling knowledge with this 20-question quiz covering essential topics like well control, drilling equipment, and safety. Perfect for beginners and professionals alike, this interactive quiz will help you assess your understanding of key oilfield concepts.
[pdf] 
