Small Business Size Standards for Sector 21

The North American Industry Classification System (NAICS) size standards described in this section apply to all SBA programs unless otherwise specified in this Part. The size standards themselves are expressed either in number of employees or annual receipts in millions of dollars, unless otherwise specified. The number of employees or annual receipts indicates the maximum allowed for a concern and its affiliates to be considered small.

Small Business Size Standards by NAICS Industry
NAICS code	NAICS U.S. Industry Title	Size Standards in millions of dollars	Size Standards in number of employees
211	Oil and Gas Extraction:
211111	Crude Petroleum and Natural Gas Extraction		500
211112	Natural Gas Liquid Extraction		500
212	Mining (except Oil and Gas):
212111	Bituminous Coal and Lignite Surface Mining		500
212112	Bituminous Coal Underground Mining		500
212113	Anthracite Mining		500
212210	Iron Ore Mining		500
212221	Gold Ore Mining		500
212222	Silver Ore Mining		500
212231	Lead Ore and Zinc Ore Mining		500
212234	Copper Ore and Nickel Ore Mining		500
212291	Uranium-Radium-Vanadium Ore Mining		500
212299	All Other Metal Ore Mining		500
212311	Dimension Stone Mining and Quarrying		500
212312	Crushed and Broken Limestone Mining and Quarrying		500
212313	Crushed and Broken Granite Mining and Quarrying		500
212319	Other Crushed and Broken Stone Mining and Quarrying		500
212321	Construction Sand and Gravel Mining		500
212322	Industrial Sand Mining		500
212324	Kaolin and Ball Clay Mining		500
212325	Clay and Ceramic and Refractory Minerals Mining		500
212391	Potash, Soda, and Borate Mineral Mining		500
212392	Phosphate Rock Mining		500
212393	Other Chemical and Fertilizer Mineral Mining		500
212399	All Other Nonmetallic Mineral Mining		500
213	Support Activities for Mining:
213111	Drilling Oil and Gas Wells		500
213112	Support Activities for Oil and Gas Operations	$7.0
213113	Support Activities for Coal Mining	$7.0
213114	Support Activities for Metal Mining	$7.0
213115	Support Activities for Nonmetallic Minerals (except Fuels)	$7.0

Source: Code of Federal Regulations, Title 13, Part 121 - Small Business Size Regulations

Small Business Size Standards for Mining, Quarrying, and Oil and Gas Extraction