Mining, Quarrying, and Oil and Gas Extraction

    21 Mining, Quarrying, and Oil and Gas Extraction
    211 Oil and Gas Extraction
    2111 Oil and Gas Extraction
    21111 Oil and Gas Extraction
    211113 Conventional Oil and Gas Extraction
    211114 Non-Conventional Oil Extraction
    212 Mining and Quarrying (except Oil and Gas)
    2121 Coal Mining
    21211 Coal Mining
    212114 Bituminous Coal Mining
    212115 Subbituminous Coal Mining
    212116 Lignite Coal Mining
    2122 Metal Ore Mining
    21221 Iron Ore Mining
    21222 Gold and Silver Ore Mining
    21223 Copper, Nickel, Lead and Zinc Ore Mining
    212232 Nickel-Copper Ore Mining
    212233 Copper-Zinc Ore Mining
    21229 Other Metal Ore Mining
    212291 Uranium Ore Mining
    212299 All Other Metal Ore Mining
    2123 Non-Metallic Mineral Mining and Quarrying
    21231 Stone Mining and Quarrying
    212314 Granite Mining and Quarrying
    212315 Limestone Mining and Quarrying
    212316 Marble Mining and Quarrying
    212317 Sandstone Mining and Quarrying
    21232 Sand, Gravel, Clay, and Ceramic and Refractory Minerals Mining and Quarrying
    212323 Sand and Gravel Mining and Quarrying
    212326 Shale, Clay and Refractory Mineral Mining and Quarrying
    21239 Other Non-Metallic Mineral Mining and Quarrying
    212393 Salt Mining
    212394 Asbestos Mining
    212396 Potash Mining
    212397 Peat Extraction
    212398 All Other Non-Metallic Mineral Mining and Quarrying
    213 Support Activities for Mining and Oil and Gas Extraction
    2131 Support Activities for Mining and Oil and Gas Extraction
    21311 Support Activities for Mining and Oil and Gas Extraction
    213111 Oil and Gas Contract Drilling
    213117 Contract Drilling (except Oil and Gas)
    213118 Services to Oil and Gas Extraction
    213119 Other Support Activities for Mining