National Oilwell Varco, Inc. provides equipment and components that are used in oil and gas drilling and production operations, oilfield services, and supply chain integration services to the upstream oil and gas industry. The firm operates through the following segments: Rig Technologies, Wellbore Technologies, and Completion and Production Solutions. The Rig Technologies segment monitors its capital equipment backlog to plan its business. The Wellbore Technologies segment designs, manufactures, rents, and sells a variety of equipment and technologies used to perform drilling operations, and offers services that optimize their performance. The Completion and Production Solutions segment integrates technologies for well completions and oil and gas production. The company was founded in 1841 and is headquartered in Houston, TX.