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Energy & Resources

Anthracite Mining

Bituminous Coal Underground Mining

Bituminous Coal and Lignite Surface Mining

Chemical and Fertilizer Mineral Mining, NEC

Clay, Ceramic, and Refractory Minerals, NEC

Coal Mining Services

Combination Utilities, NEC

Construction Sand and Gravel

Copper Ores

Crude Petroleum Pipelines

Crude Petroleum and Natural Gas

Crushed and Broken Granite

Crushed and Broken Limestone

Crushed and Broken Stone, NEC

Dimension Stone

Drilling Oil and Gas Wells

Electric Services

Electric and Other Services Combined

Ferroalloy Ores, Except Vanadium

Gas and Other Services Combined

Gold Ores

Industrial Sand

Iron Ores

Irrigation Systems

Kaolin and Ball Clay

Lead and Zinc Ores

Metal Mining Services

Miscellaneous Metal Ores, NEC

Miscellaneous Nonmetallic Minerals, Except Fuels

Mixed, Manufactured, or Liquefied Petroleum Gas Production and/or Distribution

Motors and Generators

Natural Gas Distribution

Natural Gas Liquids

Natural Gas Transmission

Natural Gas Transmission and Distribution

Nonmetallic Minerals Services Except Fuels

Oil and Gas Field Exploration Services

Oil and Gas Field Services, NEC

Petroleum Bulk Stations and Terminals

Petroleum and Petroleum Products Wholesalers, Except Bulk Stations and Terminals

Phosphate Rock

Pipelines, NEC

Potash, Soda, and Borate Minerals

Power, Distribution, and Specialty Transformers

Refined Petroleum Pipelines

Refuse Systems

Sanitary Services, NEC

Silver Ores

Steam and Air-Conditioning Supply

Uranium-Radium-Vanadium Ores

Water Supply