National Oilwell Varco

National Oilwell Varco (NOV) is a public company based in Houston, Texas, in the United States . It was founded on January 1, 1862 , and its stock is traded on the New York Stock Exchange . The company is active and operates as a subsidiary of its parent organization, also named National Oilwell Varco .

NOV has a DUNS number of 161681044 and is located at 7909 Parkwood Circle Dr, Houston, TX 77036, United States . The company competes with other companies in the oil and gas industry, such as Vinmar International , Halliburton , Baker Hughes , and Schlumberger .

The organization holds 454 patents and has a subsidiary called Grant Prideco . National Oilwell Varco is an organization that operates both as a company and an organization .