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Coal Mining Productivity by State and Mine Type                                          
Table 21.    xls    pdf     Annual Coal Report
Table 21. Coal Mining Productivity by State and Mine Type, 2006, 2005
Coal-Producing State,
Region[1], and Mine Type		 Number of Mining Operations [2] Number of Employees [3] Average Production
per Employee
per Hour
(short tons) [4]
2006 2005 Percent
Change		 2006 2005 Percent
Change		 2006 2005 Percent
Change
Alabama  68 62 9.7 4,195 4,138 1.4 2.01 2.18 -8
   Underground  14 14 - 2,621 2,887 -9.2 1.74 1.99 -12.4
   Surface  54 48 12.5 1,574 1,251 25.8 2.51 2.6 -3.4
Alaska  1 1 - 96 97 -1 6.48 6.71 -3.5
   Surface  1 1 - 96 97 -1 6.48 6.71 -3.5
Arizona  2 3 -33.3 418 567 -26.3 7.69 8.22 -6.4
   Surface  2 3 -33.3 418 567 -26.3 7.69 8.22 -6.4
Arkansas  2 1 100.0 43 2 NM 0.24 0.8 -70.3
   Underground  1 - - 41 - - 0.19 - -
   Surface  1 1 - 2 2 - 2.48 0.8 209.1
Colorado  13 14 -7.1 2,229 2,226 0.1 7.9 8.52 -7.2
   Underground  8 9 -11.1 1,682 1,640 2.6 7.72 8.65 -10.8
   Surface  5 5 - 547 586 -6.7 8.46 8.17 3.6
Illinois  33 31 6.5 3,977 3,817 4.2 3.7 3.7 *
   Underground  21 18 16.7 3,507 3,393 3.4 3.52 3.46 1.9
   Surface  12 13 -7.7 470 424 10.8 4.89 5.5 -11.2
Indiana  45 48 -6.3 2,858 2,683 6.5 4.81 5.06 -5
   Underground  15 19 -21.1 1,231 1,143 7.7 3.46 3.89 -11.2
   Surface  30 29 3.4 1,627 1,540 5.6 5.82 5.92 -1.8
Kansas  3 1 200.0 61 25 144 3.64 2.94 23.8
   Surface  3 1 200.0 61 25 144 3.64 2.94 23.8
Kentucky Total  592 560 5.7 17,959 16,990 5.7 2.96 3.13 -5.6
   Underground  300 291 3.1 11,902 11,137 6.9 2.68 2.93 -8.4
   Surface  292 269 8.6 6,057 5,853 3.5 3.51 3.52 -0.5
  Eastern  556 524 6.1 15,010 14,290 5 2.78 2.93 -5.2
   Underground  280 273 2.6 9,303 8,883 4.7 2.37 2.64 -10.4
   Surface  276 251 10.0 5,707 5,407 5.5 3.45 3.4 1.4
  Western  36 36 - 2,949 2,700 9.2 3.78 4.11 -8.2
   Underground  20 18 11.1 2,599 2,254 15.3 3.69 3.94 -6.4
   Surface  16 18 -11.1 350 446 -21.5 4.54 5.12 -11.1
Louisiana  2 2 - 243 242 0.4 7.84 7.98 -1.7
   Surface  2 2 - 243 242 0.4 7.84 7.98 -1.7
Maryland  22 19 15.8 490 502 -2.4 4.82 4.75 1.5
   Underground  5 4 25.0 205 272 -24.6 6.1 5.33 14.4
   Surface  17 15 13.3 285 230 23.9 3.81 4.05 -6
Mississippi  1 1 - 178 193 -7.8 10.38 8.87 17.1
   Surface  1 1 - 178 193 -7.8 10.38 8.87 17.1
Missouri  2 2 - 20 24 -16.7 10.2 11.25 -9.3
   Surface  2 2 - 20 24 -16.7 10.2 11.25 -9.3
Montana  6 6 - 942 835 12.8 21.98 23.26 -5.5
   Underground  1 1 - 58 53 9.4 2.65 1.5 76.6
   Surface  5 5 - 884 782 13 23.3 24.7 -5.7
New Mexico  5 5 - 1,372 1,408 -2.6 8.62 9.68 -10.9
   Underground  2 2 - 368 362 1.7 8.07 9.87 -18.3
   Surface  3 3 - 1,004 1,046 -4 8.85 9.61 -7.9
North Dakota  5 4 25.0 947 927 2.2 16.91 16.84 0.4
   Surface  5 4 25.0 947 927 2.2 16.91 16.84 0.4
Ohio  71 74 -4.1 2,413 2,534 -4.8 4.04 4.02 0.4
   Underground  20 20 - 1,384 1,384 - 4.81 4.9 -1.9
   Surface  51 54 -5.6 1,029 1,150 -10.5 3.06 3.05 0.3
Oklahoma  10 9 11.1 224 196 14.3 3.35 3.55 -5.7
   Underground  2 1 100.0 73 48 52.1 2.44 3.55 -31.3
   Surface  8 8 - 151 148 2 3.78 3.55 6.3
Pennsylvania Total  358 357 0.3 7,526 7,609 -1.1 3.9 3.96 -1.6
   Underground  87 88 -1.1 5,099 5,043 1.1 4.52 4.71 -4
   Surface  271 269 0.7 2,427 2,566 -5.4 2.44 2.38 2.3
  Anthracite  124 115 7.8 869 891 -2.5 0.95 0.95 0.6
   Underground  35 31 12.9 226 228 -0.9 0.68 0.63 6.6
   Surface  89 84 6.0 643 663 -3 1.04 1.04 -0.1
  Bituminous  234 242 -3.3 6,657 6,718 -0.9 4.21 4.31 -2.3
   Underground  52 57 -8.8 4,873 4,815 1.2 4.65 4.86 -4.2
   Surface  182 185 -1.6 1,784 1,903 -6.3 2.87 2.81 2.2
Tennessee  36 38 -5.3 660 691 -4.5 2.06 2.04 0.8
   Underground  16 18 -11.1 333 318 4.7 1.97 2.21 -10.9
   Surface  20 20 - 327 373 -12.3 2.14 1.95 9.2
Texas  12 13 -7.7 2,138 2,196 -2.6 9.9 9.7 2.1
   Surface  12 13 -7.7 2,138 2,196 -2.6 9.9 9.7 2.1
Utah  20 19 5.3 2,036 1,817 12.1 6.15 6.37 -3.3
   Underground  19 18 5.6 2,030 1,812 12 6.18 6.39 -3.3
   Surface  1 1 - 6 5 20 - - -
Virginia  170 179 -5.0 5,262 5,134 2.5 2.67 2.54 5
   Underground  98 109 -10.1 3,623 3,577 1.3 2.48 2.25 10.3
   Surface  72 70 2.9 1,639 1,557 5.3 3.07 3.13 -2.1
Washington  1 1 - 673 672 0.1 2.03 3.71 -45.2
   Surface  1 1 - 673 672 0.1 2.03 3.71 -45.2
West Virginia Total  419 398 5.3 20,076 18,611 7.9 3.32 3.6 -7.8
   Underground  247 233 6.0 13,190 12,483 5.7 2.87 3.26 -12
   Surface  172 165 4.2 6,886 6,128 12.4 4.14 4.26 -2.8
  Northern  70 71 -1.4 4,621 4,629 -0.2 4.12 4.13 -0.2
   Underground  41 39 5.1 3,982 4,085 -2.5 4.02 4.16 -3.3
   Surface  29 32 -9.4 639 544 17.5 4.78 3.91 22.1
  Southern  349 327 6.7 15,455 13,982 10.5 3.09 3.43 -10
   Underground  206 194 6.2 9,208 8,398 9.6 2.36 2.83 -16.4
   Surface  143 133 7.5 6,247 5,584 11.9 4.08 4.29 -4.9
Wyoming  21 19 10.5 5,837 5,050 15.6 35.46 38.01 -6.7
   Underground  1 1 - 128 62 106.5 1.84 3.5 -47.6
   Surface  20 18 11.1 5,709 4,988 14.5 36.24 38.39 -5.6
Appalachian Total  1,700 1,651 3.0 55,632 53,509 4 3.13 3.28 -4.6
   Underground  767 759 1.1 35,758 34,847 2.6 2.95 3.19 -7.6
   Surface  933 892 4.6 19,874 18,662 6.5 3.45 3.43 0.4
  Northern  521 521 - 15,050 15,274 -1.5 4.02 4.05 -0.8
   Underground  153 151 1.3 10,670 10,784 -1.1 4.4 4.54 -3.1
   Surface  368 370 -0.5 4,380 4,490 -2.4 3.02 2.85 5.8
  Central  1,111 1,067 4.1 36,387 34,084 6.8 2.89 3.07 -6
   Underground  600 593 1.2 22,467 21,163 6.2 2.38 2.65 -10.3
   Surface  511 474 7.8 13,920 12,921 7.7 3.67 3.71 -1.2
  Southern  68 63 7.9 4,195 4,151 1.1 2.01 2.18 -7.9
   Underground  14 15 -6.7 2,621 2,900 -9.6 1.74 1.99 -12.2
   Surface  54 48 12.5 1,574 1,251 25.8 2.51 2.6 -3.4
Interior Total  146 144 1.4 12,691 12,078 5.1 5.1 5.29 -3.7
   Underground  59 56 5.4 7,451 6,838 9 3.54 3.7 -4.3
   Surface  87 88 -1.1 5,240 5,240 - 7.35 7.43 -1
  Illinois Basin  114 115 -0.9 9,784 9,200 6.3 4.07 4.25 -4.1
   Underground  56 55 1.8 7,337 6,790 8.1 3.57 3.7 -3.5
   Surface  58 60 -3.3 2,447 2,410 1.5 5.49 5.72 -4.1
Western Total  74 72 2.8 14,550 13,599 7 20.19 20.47 -1.4
   Underground  31 31 - 4,266 3,929 8.6 6.77 7.54 -10.1
   Surface  43 41 4.9 10,284 9,670 6.3 25.7 25.63 0.3
  Powder River Basin  18 17 5.9 5,852 5,053 15.8 37.57 40.11 -6.3
   Underground  - - - - - - - - -
   Surface  18 17 5.9 5,852 5,053 15.8 37.57 40.11 -6.3
  Uinta Region  31 31 - 4,182 3,956 5.7 7.11 7.6 -6.5
   Underground  26 26 - 3,657 3,394 7.7 6.92 7.51 -7.8
   Surface  5 5 - 525 562 -6.6 8.41 8.16 3
East of Miss. River  1,815 1,767 2.7 65,594 62,902 4.3 3.29 3.44 -4.3
   Underground  823 814 1.1 43,095 41,637 3.5 3.06 3.28 -6.7
   Surface  992 953 4.1 22,499 21,265 5.8 3.74 3.75 -0.2
West of Miss. River  105 100 5.0 17,279 16,284 6.1 18.33 18.5 -0.9
   Underground  34 32 6.3 4,380 3,977 10.1 6.62 7.48 -11.5
   Surface  71 68 4.4 12,899 12,307 4.8 22.27 21.99 1.3
Subtotal  1,920 1,867 2.8 82,873 79,186 4.7 6.27 6.36 -1.5
   Underground  857 846 1.3 47,475 45,614 4.1 3.37 3.62 -7
   Surface  1,063 1,021 4.1 35,398 33,572 5.4 10.19 10.04 1.5
Refuse Recovery  15 18 -16.7 86 97 -11.3 4.33 3.99 8.5
U.S. Total  1,935 1,885 2.7 82,959 79,283 4.6 6.26 6.36 -1.5
[1] For a definition of coal producing regions, see Glossary.
[2] Mining operations that consist of a mine and preparation plant or preparation plant only processing both underground and surface coal are reported.
[3] Includes all employees engaged in production, preparation, processing, development, maintenance, repair shop, or yard work at mining operations, including office workers.
[4] Calculated by dividing total coal production by the total labor hours worked by all employees engaged in production, preparation, processing, development, maintenance, repair shop, or yard work at mining operations, including office workers.
 * Absolute percentage less than 0.05.
 - =  No data are reported.
 NM =  Not meaningful due to changes of 500 percent or more.
 Note:  · Excludes preparation plants with less than 5,000 employee hours per year, which are not required to provide data.
 Source:  · Energy Information Administration Form EIA-7A, "Coal Production Report," and U.S. Department of Labor, Mine Safety and Health Administration, Form 7000-2, "Quarterly Mine Employment and Coal Production Report.

see also:
Historical Coal Data back to 1949
Projected Coal Supply & Demand to 2030 International Coal Data