Establishments primarily engaged in manufacturing machinery and equipment for use in oil and gas fields or for drilling water wells, including portable drilling rigs. Establishments primarily engaged in manufacturing offshore oil and gas well drilling and production platforms are classified in Industry 3731.
- Bib, rock: oil and gas field tools
- Derricks, oil and gas field
- Drill rigs, all types
- Drilling tools for gas, oil, or water wells
- Gas well machinery and equipment
- Oil and gas field machinery and equipment
- Water well drilling machinery
- Well logging equipment
- Well surveying machinery