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Energy & Resources (168,542)

Anthracite Mining (86)

Bituminous Coal Underground Mining (283)

Bituminous Coal and Lignite Surface Mining (1,419)

Chemical and Fertilizer Mineral Mining, NEC (122)

Clay, Ceramic, and Refractory Minerals, NEC (194)

Coal Mining Services (926)

Combination Utilities, NEC (1,655)

Construction Sand and Gravel (3,178)

Copper Ores (99)

Crude Petroleum Pipelines (3,026)

Crude Petroleum and Natural Gas (9,154)

Crushed and Broken Granite (268)

Crushed and Broken Limestone (1,157)

Crushed and Broken Stone, NEC (1,037)

Dimension Stone (1,710)

Drilling Oil and Gas Wells (3,445)

Electric Services (13,807)

Electric and Other Services Combined (1,005)

Ferroalloy Ores, Except Vanadium (19)

Gas and Other Services Combined (602)

Gold Ores (453)

Industrial Sand (256)

Iron Ores (133)

Irrigation Systems (4,102)

Kaolin and Ball Clay (65)

Lead and Zinc Ores (20)

Metal Mining Services (639)

Miscellaneous Metal Ores, NEC (41)

Miscellaneous Nonmetallic Minerals, Except Fuels (1,558)

Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution (2,943)

Motors and Generators (2,151)

Natural Gas Distribution (2,282)

Natural Gas Liquids (546)

Natural Gas Transmission (1,846)

Natural Gas Transmission and Distribution (1,014)

Nonmetallic Minerals Services Except Fuels (327)

Oil and Gas Field Exploration Services (7,046)

Oil and Gas Field Services, NEC (14,886)

Petroleum Bulk Stations and Terminals (3,961)

Petroleum and Petroleum Products Wholesalers, Except Bulk Stations and Terminals (24,129)

Phosphate Rock (34)

Pipelines, NEC (322)

Potash, Soda, and Borate Minerals (29)

Power, Distribution, and Specialty Transformers (1,091)

Refined Petroleum Pipelines (533)

Refuse Systems (31,574)

Sanitary Services, NEC (7,996)

Silver Ores (35)

Steam and Air-Conditioning Supply (508)

Uranium-Radium-Vanadium Ores (60)

Water Supply (14,770)