Coal


Coal Reserves (Million Short Tons)
Type of Reserve Underground Surface Total Demonstrated Reserve Base: (January 1, 1992) .................. 12,128 4,828 16,956 Estimated Recoverable Reserves: (January 1, 1992) Sulfur Content (pounds per million Btu) < 0.61 (low sulfur) ...................... 5,631 418 6,049 0.61-1.67 (medium sulfur) .............. 651 3,367 4,017 > 1.67 (high sulfur) ................. 83 14 97 Total .................................. 6,365 3,799 10,163 Estimated Recoverable Reserves at Active Mines, Year-End 1992 ............ 400 208 608
Production
Salient Data by Mine Type 1980 1985 1990 1991 1992 Underground Quantity (thousand short tons) ..... 5,721 6,377 10,628 9,601 10,246 Mines ............................ 26 23 16 16 15 Miners ........................... 2,408 1,464 1,509 1,530 1,085 Productivity (short tons per miner per hour) 1.18 2.16 3.26 4.23 4.52 Average Mine Price (dollars per short ton) 27.24 28.91 24.27 24.09 21.80 Surface Surface Quantity (thousand short tons) .... 13,125 10,865 8,281 8,233 8,981 Mines ....................... 17 12 7 5 6 Miners .......................... 1,503 1,087 500 507 525 Productivity (short tons per miner per hour) 3.94 4.78 6.86 6.51 6.52 Average Mine Price (dollars per short ton) 16.43 22.16 18.53 19.96 20.80 Total Quantity (thousand short tons) 18,846 17,243 18,910 17,834 19,226 Mines .............................. 43 35 23 21 21 Miners ........................... 3,911 2,551 2,009 2,037 1,610 Productivity (short tons per miner per hour) 2.26 3.30 4.24 5.05 5.27 Average Mine Price (dollars per short ton) 19.89 24.65 21.75 22.18 21.33

Notes : First year of documented coal production: 1864 (500 short tons). Year of peak production: 1981 (19,897,000 short tons)

Source: State Coal Profiles:January 1994 Energy Information Administration.

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