Derrickmen are key members of the drilling crew, responsible for operating the derrick and managing fluid systems that ensure the wellbore's stability during drilling. They climb and work at heights on the derrick to handle drill pipe and maintain mud pumps, tanks, and circulation systems. Their expertise is essential for smooth operations, ensuring that drilling fluids are properly mixed, monitored, and circulated to support safe and efficient drilling.

Working in challenging environments, derrickmen collaborate with rig crews and engineers to troubleshoot fluid system issues and assist with various rig floor tasks. The role requires physical stamina, technical knowledge, and a commitment to safety. A career as a derrickman offers a strong foundation for advancement in drilling operations, with opportunities to progress to roles such as driller or rig supervisor.