NOV Inc. is a Houston-based public company (NYSE: NOV) that designs and manufactures equipment, software, and services for oil and gas drilling, completion, production, and industrial lifting and handling. It sells capital equipment, consumables, and aftermarket services to drilling contractors, operators, and service companies worldwide, including automation and control systems used across rigs and production facilities. Formerly known as National Oilwell Varco, the company operates globally with roots in the industry dating back to the 19th century.