National Oilwell Varco

National Oilwell Varco is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Oil & Gas Well Service
• Oil Field Equipment & Supplies
• Oil Well Drilling

North American Industry Classification System (NAICS) Categories:

• Drilling Oil And Gas Wells > Oil Well Drilling
• Support Activities For Oil And Gas Operations
• Industrial Machinery And Equipment Merchant Wholesalers > Petroleum Industry Machinery > Oil Field Equipment & Supplies

Standard Industry Classification (SIC) Categories:

• Drilling Oil & Gas Wells > Oil & Gas Well Drilling
• Oil & Gas Field Services, Nec
• Industrial Machinery & Equipment > Petroleum Industry Machinery > Oil Field Equipment & Supplies