U. S. Small Business Administration

Sector 21 – Mining, Quarrying, and Oil and Gas ExtractionSubsector 211 – Oil and Gas Extraction211111 Crude Petroleum and Natural Gas Extraction 500211112 Natural Gas Liquid Extraction 500Subsector 212 – Mining (except Oil and Gas)212111 Bituminous Coal and Lignite Surface Mining 500212112 Bituminous Coal Underground Mining 500212113 Anthracite Mining 500212210 Iron Ore Mining 500212221 Gold Ore Mining 500212222 Silver Ore Mining 500212231 Lead Ore and Zinc Ore Mining 500212234 Copper Ore and Nickel Ore Mining 500212291 Uranium-Radium-Vanadium Ore Mining 500212299 All Other Metal Ore Mining 500212311 Dimension Stone Mining and Quarrying 500212312 Crushed and Broken Limestone Mining and Quarrying 500212313 Crushed and Broken Granite Mining and Quarrying 500212319Other Crushed and Broken Stone Mining andQuarrying500212321 Construction Sand and Gravel Mining 500212322 Industrial Sand Mining 500212324 Kaolin and Ball Clay Mining 500212325 Clay and Ceramic and Refractory Minerals Mining 500212391 Potash, Soda, and Borate Mineral Mining 500212392 Phosphate Rock Mining 500212393 Other Chemical and Fertilizer Mineral Mining 500212399 All Other Nonmetallic Mineral Mining 500Subsector 213 – Support Activities for Mining213111 Drilling Oil and Gas Wells 500213112 Support Activities for Oil and Gas Operations $7.0213113 Support Activities for Coal Mining $7.0213114 Support Activities for Metal Mining $7.0213115Support Activities for Nonmetallic Minerals (exceptFuels)$7.0Sector 22 – UtilitiesSubsector 221 – Utilities221111 Hydroelectric Power GenerationSeeFootnote 14