| Forestry and Logging |
| Contract Logging |
113312 |
| Forest Nurseries and Gathering of Forest Products |
113210 |
| Logging (except Contract) |
113311 |
| Timber Tract Operations |
113110 |
| Hunting and Trapping |
| Hunting and Trapping |
114210 |
| Mining and Quarrying (except Oil and Gas) |
| Asbestos Mining |
212394 |
| Coal Mining - Bituminous |
212114 |
| Coal Mining - Lignite |
212116 |
| Coal Mining - Subbituminous |
212115 |
| Copper-Zinc Ore Mining |
212233 |
| Diamond Mining |
212392 |
| Gold and Silver Ore Mining |
212220 |
| Granite Mining and Quarrying |
212314 |
| Gypsum Mining |
212395 |
| Iron Ore Mining |
212210 |
| Lead-Zinc Ore Mining |
212231 |
| Limestone Mining and Quarrying |
212315 |
| Marble Mining and Quarrying |
212316 |
| Nickel-Copper Ore Mining |
212232 |
| Peat Extraction |
212397 |
| Potash Mining |
212396 |
| Salt Mining |
212393 |
| Sand and Gravel Mining and Quarrying |
212323 |
| Sandstone Mining and Quarrying |
212317 |
| Shale, Clay and Refractory Mineral Mining and Quarrying |
212326 |
| Uranium Ore Mining |
212291 |
| All Other Metal Ore Mining |
212299 |
| All Other Non-Metallic Mineral Mining and Quarrying |
212398 |
| Oil and Gas Extraction |
| Conventional Oil and Gas Extraction |
211113 |
| Non-Conventional Oil Extraction |
211114 |
| Support Activities for Agriculture and Forestry |
| Support Activities for Animal Production |
115210 |
| Support Activities for Crop Production |
115110 |
| Support Activities for Forestry |
115310 |
| Support Activities for Mining and Oil and Gas Extraction |
| Contract Drilling (except Oil and Gas) |
213117 |
| Oil and Gas Contract Drilling |
213111 |
| Services to Oil and Gas Extraction |
213118 |
| Other Support Activities for Mining |
213119 |
| Utilities |
| Electric Bulk Power Transmission and Control |
221121 |
| Electric Power Distribution |
221122 |
| Electric Power Generation - Fossil-Fuel |
221112 |
| Electric Power Generation - Hydro-Electric |
221111 |
| Electric Power Generation - Nuclear |
221113 |
| Other Electric Power Generation |
221119 |
| Natural Gas Distribution |
221210 |
| Sewage Treatment Facilities |
221320 |
| Steam and Air-Conditioning Supply |
221330 |
| Water Supply and Irrigation Systems |
221310 |