Ensign United States Drilling, located in Denver, provides equipment and services for the drilling of oil and gas wells on footage, day work and integrated service basis. It is a drilling contractor that serves the Rocky Mountain and California regions. It uses automated drilling rigs to move in quickly on difficult-to-reach drilling locations. In addition, the company uses self-walking rigs for pad and directional drilling work. It utilizes a central umbilical system to support these rigs. It maintains a full range of specialized equipment, including top drives, iron roughnecks, camps, heavyweight drill pipes, drill collars, rotating heads, gas busters, forklifts, hydraulic chokes, mud motors and mud cleaning equipment. The company also operates a fleet of trucks cranes. Its professional engineering staff is experienced in building a rig that fits any of clients drilling needs. Its staff custom-design all the capabilities and features required into a newly fabricated rig.