Six-Digit NAICS Codes & Titles

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Codes	Titles	Number of US Businesses
21	Mining	37,975
211111	Crude Petroleum and Natural Gas Extraction	6,992
211112	Natural Gas Liquid Extraction	555
212111	Bituminous Coal and Lignite Surface Mining	742
212112	Bituminous Coal Underground Mining	251
212113	Anthracite Mining	80
212210	Iron Ore Mining	121
212221	Gold Ore Mining	406
212222	Silver Ore Mining	52
212231	Lead Ore and Zinc Ore Mining	30
212234	Copper Ore and Nickel Ore Mining	128
212291	Uranium-Radium-Vanadium Ore Mining	60
212299	All Other Metal Ore Mining	69
212311	Dimension Stone Mining and Quarrying	712
212312	Crushed and Broken Limestone Mining and Quarrying	1,025
212313	Crushed and Broken Granite Mining and Quarrying	252
212319	Other Crushed and Broken Stone Mining and Quarrying	567
212321	Construction Sand and Gravel Mining	2,809
212322	Industrial Sand Mining	241
212324	Kaolin and Ball Clay Mining	74
212325	Clay and Ceramic and Refractory Minerals Mining	163
212391	Potash, Soda, and Borate Mineral Mining	41
212392	Phosphate Rock Mining	27
212393	Other Chemical and Fertilizer Mineral Mining	149
212399	All Other Nonmetallic Mineral Mining	367
213111	Drilling Oil and Gas Wells	3,012
213112	Support Activities for Oil and Gas Operations	17,491
213113	Support Activities for Coal Mining	815
213114	Support Activities for Metal Mining	514
213115	Support Activities for Nonmetallic Minerals (except Fuels) Mining	230