| [211111] Crude Petroleum and Natural Gas Extraction |
| [211112] Natural Gas Liquid Extraction |
| [212111] Bituminous Coal and Lignite Surface Mining |
| [212112] Bituminous Coal Underground Mining |
| [212113] Anthracite Mining |
| [212210] Iron Ore Mining |
| [212221] Gold Ore Mining |
| [212222] Silver Ore Mining |
| [212231] Lead Ore and Zinc Ore Mining |
| [212234] Copper Ore and Nickel Ore Mining |
| [212291] Uranium-Radium-Vanadium Ore Mining |
| [212299] All Other Metal Ore Mining |
| [212311] Dimension Stone Mining and Quarrying |
| [212312] Crushed and Broken Limestone Mining and Quarrying |
| [212313] Crushed and Broken Granite Mining and Quarrying |
| [212319] Other Crushed and Broken Stone Mining and Quarrying |
| [212321] Construction Sand and Gravel Mining |
| [212322] Industrial Sand Mining |
| [212324] Kaolin and Ball Clay Mining |
| [212325] Clay and Ceramic and Refractory Minerals Mining |
| [212391] Potash, Soda, and Borate Mineral Mining |
| [212392] Phosphate Rock Mining |
| [212393] Other Chemical and Fertilizer Mineral Mining |
| [212399] All Other Nonmetallic Mineral Mining |
| [213111] Drilling Oil and Gas Wells |
| [213112] Support Activities for Oil and Gas Operations |
| [213113] Support Activities for Coal Mining |
| [213114] Support Activities for Metal Mining |
| [213115] Support Activities for Nonmetallic Minerals (except Fuels) Mining |
