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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, 2008, 2007
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]
2008 2007 Percent
Change
2008 2007 Percent
Change
2008 2007 Percent
Change
Alabama  73 61 19.7 4,270 3,850 10.9 2.03 2.23 -8.7
   Underground  13 13 - 2,748 2,458 11.8 1.87 2.08 -10
   Surface  60 48 25.0 1,522 1,392 9.3 2.34 2.49 -6.2
Alaska  1 1 - 104 99 5.1 6.29 5.83 7.9
   Surface  1 1 - 104 99 5.1 6.29 5.83 7.9
Arizona  1 1 - 419 430 -2.6 8.03 7.92 1.4
   Surface  1 1 - 419 430 -2.6 8.03 7.92 1.4
Arkansas  2 2 - 93 87 6.9 0.33 0.42 -22.4
   Underground  1 1 - 91 85 7.1 0.32 0.41 -22.2
   Surface  1 1 - 2 2 - 1.37 1.65 -17.3
Colorado  13 13 - 2,285 2,249 1.6 6.58 7.51 -12.4
   Underground  9 9 - 1,759 1,729 1.7 6.43 7.36 -12.6
   Surface  4 4 - 526 520 1.2 7.1 8.05 -11.7
Illinois  26 29 -10.3 3,368 3,946 -14.6 4.21 3.67 14.7
   Underground  15 19 -21.1 2,907 3,488 -16.7 4.03 3.48 15.6
   Surface  11 10 10.0 461 458 0.7 5.34 4.95 7.8
Indiana  42 44 -4.5 3,083 2,968 3.9 4.51 4.55 -1
   Underground  12 15 -20.0 1,387 1,291 7.4 3.4 3.18 6.9
   Surface  30 29 3.4 1,696 1,677 1.1 5.42 5.6 -3.2
Kansas  3 3 - 59 65 -9.2 2.11 3.25 -35.2
   Surface  3 3 - 59 65 -9.2 2.11 3.25 -35.2
Kentucky Total  600 554 8.3 18,906 16,986 11.3 2.82 2.97 -5
   Underground  281 266 5.6 11,981 11,146 7.5 2.52 2.69 -6.4
   Surface  319 288 10.8 6,925 5,840 18.6 3.39 3.53 -4
  Eastern  564 521 8.3 15,663 14,106 11.0 2.61 2.75 -5.1
   Underground  262 251 4.4 9,239 8,661 6.7 2.15 2.31 -6.9
   Surface  302 270 11.9 6,424 5,445 18.0 3.28 3.45 -4.8
  Western  36 33 9.1 3,243 2,880 12.6 3.76 3.96 -5.2
   Underground  19 15 26.7 2,742 2,485 10.3 3.59 3.86 -6.8
   Surface  17 18 -5.6 501 395 26.8 4.95 4.83 2.4
Louisiana  2 2 - 251 239 5.0 7.37 6.08 21.3
   Surface  2 2 - 251 239 5.0 7.37 6.08 21.3
Maryland  24 22 9.1 401 375 6.9 3.17 2.8 13.2
   Underground  3 4 -25.0 136 131 3.8 2.39 2.09 14.4
   Surface  21 18 16.7 265 244 8.6 3.59 3.19 12.5
Mississippi  1 1 - 166 177 -6.2 8.51 9.99 -14.8
   Surface  1 1 - 166 177 -6.2 8.51 9.99 -14.8
Missouri  2 2 - 12 14 -14.3 9.18 6.96 31.9
   Surface  2 2 - 12 14 -14.3 9.18 6.96 31.9
Montana  6 6 - 1,035 986 5.0 20.75 22.2 -6.6
   Underground  1 1 - 45 16 181.3 1.88 1.46 29
   Surface  5 5 - 990 970 2.1 21.56 22.55 -4.4
New Mexico  5 6 -16.7 1,445 1,356 6.6 8.72 9.03 -3.4
   Underground  1 2 -50.0 476 374 27.3 7.14 9.11 -21.6
   Surface  4 4 - 969 982 -1.3 9.51 9 5.7
North Dakota  4 5 -20.0 985 975 1.0 15.5 15.7 -1.3
   Surface  4 5 -20.0 985 975 1.0 15.5 15.7 -1.3
Ohio  63 73 -13.7 2,749 2,496 10.1 4.32 4.05 6.6
   Underground  18 21 -14.3 1,507 1,481 1.8 5 4.76 4.9
   Surface  45 52 -13.5 1,242 1,015 22.4 3.45 3.01 14.6
Oklahoma  7 9 -22.2 196 237 -17.3 2.88 2.78 3.5
   Underground  1 2 -50.0 49 84 -41.7 3.47 2.65 30.9
   Surface  6 7 -14.3 147 153 -3.9 2.69 2.85 -5.7
Pennsylvania Total  361 349 3.4 8,220 7,649 7.5 3.53 3.73 -5.5
   Underground  90 82 9.8 5,535 5,206 6.3 4.09 4.39 -7
   Surface  271 267 1.5 2,685 2,443 9.9 2.2 2.2 0.2
  Anthracite  120 120 - 929 910 2.1 0.91 0.89 2.8
   Underground  32 30 6.7 204 192 6.3 0.63 0.68 -6.8
   Surface  88 90 -2.2 725 718 1.0 0.99 0.94 5.2
  Bituminous  241 229 5.2 7,291 6,739 8.2 3.82 4.05 -5.7
   Underground  58 52 11.5 5,331 5,014 6.3 4.19 4.5 -6.8
   Surface  183 177 3.4 1,960 1,725 13.6 2.65 2.67 -0.8
Tennessee  34 28 21.4 611 566 8.0 1.87 2.1 -10.9
   Underground  9 9 - 230 220 4.5 1.65 1.92 -14.1
   Surface  25 19 31.6 381 346 10.1 2.01 2.21 -8.8
Texas  11 11 - 2,326 2,216 5.0 7.84 8.82 -11.1
   Surface  11 11 - 2,326 2,216 5.0 7.84 8.82 -11.1
Utah  16 18 -11.1 2,077 2,012 3.2 5.84 5.79 0.8
   Underground  15 17 -11.8 2,070 2,006 3.2 5.86 5.81 0.8
   Surface  1 1 - 7 6 16.7 - - -
Virginia  153 160 -4.4 4,797 4,763 0.7 2.29 2.47 -7.6
   Underground  87 94 -7.4 3,364 3,363 * 2.1 2.25 -6.5
   Surface  66 66 - 1,433 1,400 2.4 2.7 2.96 -8.8
West Virginia Total  438 418 4.8 22,034 20,049 9.9 3.06 3.32 -8
   Underground  260 239 8.8 15,043 13,441 11.9 2.58 2.82 -8.6
   Surface  178 179 -0.6 6,991 6,608 5.8 4 4.25 -5.9
  Northern  64 65 -1.5 4,901 4,540 8.0 3.68 4.08 -9.8
   Underground  33 34 -2.9 4,213 3,889 8.3 3.54 4.05 -12.6
   Surface  31 31 - 688 651 5.7 4.57 4.26 7.2
  Southern  374 353 5.9 17,133 15,509 10.5 2.88 3.1 -7
   Underground  227 205 10.7 10,830 9,552 13.4 2.2 2.3 -4.4
   Surface  147 148 -0.7 6,303 5,957 5.8 3.94 4.25 -7.2
Wyoming  22 21 4.8 6,827 6,383 7.0 32.18 33.3 -3.4
   Underground  2 1 100.0 247 204 21.1 6.87 6.47 6.1
   Surface  20 20 - 6,580 6,179 6.5 33.1 34.19 -3.2
Appalachian Total  1,710 1,632 4.8 58,745 53,854 9.1 2.91 3.1 -6
   Underground  742 713 4.1 37,802 34,961 8.1 2.7 2.91 -7.2
   Surface  968 919 5.3 20,943 18,893 10.9 3.3 3.44 -4.1
  Northern  512 509 0.6 16,271 15,060 8.0 3.7 3.87 -4.4
   Underground  144 141 2.1 11,391 10,707 6.4 3.99 4.29 -7.1
   Surface  368 368 - 4,880 4,353 12.1 2.96 2.76 7.1
  Central  1,125 1,060 6.1 38,204 34,938 9.3 2.68 2.86 -6.2
   Underground  585 558 4.8 23,663 21,793 8.6 2.16 2.29 -5.7
   Surface  540 502 7.6 14,541 13,145 10.6 3.5 3.74 -6.4
  Southern  73 63 15.9 4,270 3,856 10.7 2.03 2.23 -8.6
   Underground  13 14 -7.1 2,748 2,461 11.7 1.87 2.08 -9.9
   Surface  60 49 22.4 1,522 1,395 9.1 2.34 2.49 -6
Interior Total  132 136 -2.9 12,797 12,829 -0.2 4.81 4.85 -0.9
   Underground  48 52 -7.7 7,176 7,433 -3.5 3.68 3.52 4.6
   Surface  84 84 - 5,621 5,396 4.2 6.38 6.76 -5.6
  Illinois Basin  104 106 -1.9 9,694 9,794 -1.0 4.16 4.04 2.8
   Underground  46 49 -6.1 7,036 7,264 -3.1 3.72 3.56 4.5
   Surface  58 57 1.8 2,658 2,530 5.1 5.34 5.39 -1
Western Total  68 71 -4.2 15,177 14,490 4.7 19.91 20.4 -2.4
   Underground  28 30 -6.7 4,597 4,329 6.2 6.23 6.73 -7.4
   Surface  40 41 -2.4 10,580 10,161 4.1 25.77 26.28 -2
  Powder River Basin  19 18 5.6 6,837 6,399 6.8 33.91 35.3 -3.9
   Underground  1 - - 22 - - - - -
   Surface  18 18 - 6,815 6,399 6.5 34 35.3 -3.7
  Uinta Region  25 28 -10.7 4,260 4,165 2.3 6.3 6.76 -6.8
   Underground  22 24 -8.3 3,763 3,668 2.6 6.2 6.6 -6
   Surface  3 4 -25.0 497 497 - 7.01 7.97 -12
East of Miss. River  1,815 1,739 4.4 68,605 63,825 7.5 3.11 3.27 -4.8
   Underground  788 762 3.4 44,838 42,225 6.2 2.87 3.03 -5.2
   Surface  1,027 977 5.1 23,767 21,600 10.0 3.57 3.73 -4.2
West of Miss. River  95 100 -5.0 18,114 17,348 4.4 17.77 18.23 -2.5
   Underground  30 33 -9.1 4,737 4,498 5.3 6.07 6.52 -6.9
   Surface  65 67 -3.0 13,377 12,850 4.1 21.85 22.36 -2.2
Subtotal  1,910 1,839 3.9 86,719 81,173 6.8 5.96 6.27 -4.9
   Underground  818 795 2.9 49,575 46,723 6.1 3.15 3.34 -5.9
   Surface  1,092 1,044 4.6 37,144 34,450 7.8 9.82 10.25 -4.3
Refuse Recovery  23 20 15.0 140 105 33.3 6.78 5.77 17.4
U.S. Total  1,933 1,859 4.0 86,859 81,278 6.9 5.96 6.27 -4.9
[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 as two operations.
[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.
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