Description of Industries and Summary of Findings INDUSTRY 1221, BITUMINOUS COAL AND LIGNITE SURFACE MINING This industry is made up of establishments primarily engaged in producing bituminous coal or lignite at surface mines or in developing bituminous coal or lignite surface mines. This industry includes auger mining; strip mining; culm bank mining; other surface mining,;and coal cleaning, crushing, screening, and sizing plants, whether or not operated in conjunction with the mine served. In the 1992 Census of Mineral Industries, Industry 1221, Bituminous Coal and Lignite Surface Mining, had employment of 55.5 thousand. The employment figure was 13 percent below the 63.8 thousand reported in 1987. The total value of shipments and receipts for the industry was $13.8 billion in 1992. The value added by mining was $8.0 billion in 1992. Value added per employee was $144.6 thousand in 1992; it was $123.7 thousand in 1987. The total cost of supplies used by establishments classified in this industry amounted to $6.7 billion, while the cost of selected supplies, minerals received for preparation, and purchased machinery installed amounted to $5.2 billion and is shown in file NC92F7. The total cost of fuels used in this industry amounted to $393.2 million in 1992. Data on specific fuels used also appear in file NC92F7. Single-establishment companies in this industry with up to 12 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were imputed as described above. These establishments accounted for 6 percent of the total value of shipments and receipts. INDUSTRY 1222, BITUMINOUS COAL UNDERGROUND MINING This industry is made up of establishments primarily engaged in producing coal in underground mines or in developing bituminous coal underground mines. Bituminous coal preparation plants performing such activities as cleaning, crushing, screening, or sizing are included if operated in conjunction with an underground mine. Independent bituminous coal preparation plants are classified in industry 1221. In the 1992 Census of Mineral Industries, Industry 1222, Bituminous Coal Underground Mining, had employment of 73.0 thousand. The employment figure was 22 percent below the 93.7 thousand reported in 1987. The total value of shipments and receipts for the industry was $12.6 billion in 1992. The value added by mining was $8.7 billion in 1992. Value added per employee was $119.8 thousand in 1992; it was $93.8 thousand in 1987. The total cost of supplies used by establishments classified in this industry amounted to $4.9 billion, while the cost of selected supplies, minerals received for preparation, and purchased machinery installed amounted to $3.2 billion and is shown in file NC92F7. The total cost of fuels used in this industry amounted to $66.2 million in 1992. Data on specific fuels used also appear in file NC92F7. Single-establishment companies in this industry with up to 17 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were imputed as described above. These establishments accounted for 4 percent of the total value of shipments and receipts. INDUSTRY 1231, ANTHRACITE MINING This industry is made up of establishments primarily engaged in mining or otherwise preparing anthracite (hard coal). All establishments in the United States that are classified in this industry are in Pennsylvania. Associated activities such as mechanical cleaning, crushing, screening, and sizing are also included. In the 1992 Census of Mineral Industries, Industry 1231, Anthracite Mining, had employment of 1.4 thousand. The employment figure was 26 percent below the 1.9 thousand reported in 1987. The total value of shipments and receipts for the industry was $160.4 million in 1992. The value added by mining was $97.2 million in 1992. Value added per employee was $69.4 thousand in 1992; it was $57.6 thousand in 1987. The total cost of supplies used by establishments classified in this industry amounted to $67.3 million, while the cost of selected supplies, minerals received for preparation, and purchased machinery installed amounted to $46.6 million and is shown in file NC92F7. The total cost of fuels used in this industry amounted to $6.7 million in 1992. Data on specific fuels used also appear in file NC92F7. Single-establishment companies in this industry with up to 5 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were imputed as described above. These establishments accounted for 6 percent of the total value of shipments and receipts. INDUSTRY 1241, COAL MINING SERVICES This industry is made up of establishments primarily engaged in performing coal mining services for others on a contract or fee basis. Such activities include removal of overburden; strip, auger, or culm bank mining; drilling; mine tunneling; and shaft sinking. In the 1992 Census of Mineral Industries, Industry 1241, Coal Mining Services, had employment of 4.6 thousand. The employment figure was 15 percent above the 4.0 thousand reported in 1987. The total value of shipments and receipts for the industry was $538.4 million in 1992. The value added by mining was $378.3 million in 1992. Value added per employee was $82.2 thousand in 1992; it was $69.9 thousand in 1987. The total cost of supplies used by establishments classified in this industry amounted to $186.2 million, while the cost of selected supplies, minerals received for preparation, and purchased machinery installed amounted to $116.1 million and is shown in file NC92F7. The total cost of fuels used in this industry amounted to $20.7 million in 1992. Data on specific fuels used also appear in file NC92F7. Single-establishment companies in this industry with up to 5 employees were excluded from the mail portion of the census. The data for these establishments (and a small number of larger establishments whose reports were not received at the time the data were tabulated) were imputed as described above. These establishments accounted for 13 percent of the total value of shipments and receipts.