National Oilwell Varco, Inc. provides equipment and technology to the upstream oil and gas industry. The company operates through the following segments: Rig Technologies, Wellbore Technologies, and Completion and Production Solutions. Read More 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.