National Oilwell Varco has the equipment and skills that big energy companies need. It provides goods and services to exploration and production companies operating in oil patches around the world as well to infrastructure clients. It operating segments are Rig Systems, Rig Aftermarket, Wellbore Technologies, and Completion & Production Solutions. The company makes, distributes, and services oil and gas drilling equipment for land and offshore drilling rigs. Its mechanical components include drawworks, mud pumps, cranes, jacking systems, automated pipehandling tools, top drives, and traveling equipment. Other products include masts, derricks, substructures, and cranes.