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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, 2007, 2006
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]
2007 2006 Percent
Change
2007 2006 Percent
Change
2007 2006 Percent
Change
Alabama  61 68 -10.3 3,850 4,195 -8.2 2.23 2.01 11.1
   Underground  13 14 -7.1 2,458 2,621 -6.2 2.08 1.74 19.2
   Surface  48 54 -11.1 1,392 1,574 -11.6 2.49 2.51 -0.8
Alaska  1 1 - 99 96 3.1 5.83 6.48 -10
   Surface  1 1 - 99 96 3.1 5.83 6.48 -10
Arizona  1 2 -50.0 430 418 2.9 7.92 7.69 2.9
   Surface  1 2 -50.0 430 418 2.9 7.92 7.69 2.9
Arkansas  2 2 - 87 43 102.3 0.42 0.24 76.1
   Underground  1 1 - 85 41 107.3 0.41 0.19 118.3
   Surface  1 1 - 2 2 - 1.65 2.48 -33.4
Colorado  13 13 - 2,249 2,229 0.9 7.51 7.9 -5
   Underground  9 8 12.5 1,729 1,682 2.8 7.36 7.72 -4.7
   Surface  4 5 -20.0 520 547 -4.9 8.05 8.46 -4.9
Illinois  29 33 -12.1 3,946 3,977 -0.8 3.67 3.7 -0.8
   Underground  19 21 -9.5 3,488 3,507 -0.5 3.48 3.52 -1.2
   Surface  10 12 -16.7 458 470 -2.6 4.95 4.89 1.4
Indiana  44 45 -2.2 2,968 2,858 3.8 4.55 4.81 -5.4
   Underground  15 15 - 1,291 1,231 4.9 3.18 3.46 -8
   Surface  29 30 -3.3 1,677 1,627 3.1 5.6 5.82 -3.7
Kansas  3 3 - 65 61 6.6 3.25 3.64 -10.9
   Surface  3 3 - 65 61 6.6 3.25 3.64 -10.9
Kentucky Total  554 592 -6.4 16,986 17,959 -5.4 2.97 2.96 0.5
   Underground  266 300 -11.3 11,146 11,902 -6.4 2.69 2.68 0.3
   Surface  288 292 -1.4 5,840 6,057 -3.6 3.53 3.51 0.6
  Eastern  521 556 -6.3 14,106 15,010 -6 2.75 2.78 -1.1
   Underground  251 280 -10.4 8,661 9,303 -6.9 2.31 2.37 -2.6
   Surface  270 276 -2.2 5,445 5,707 -4.6 3.45 3.45 *
  Western  33 36 -8.3 2,880 2,949 -2.3 3.96 3.78 4.9
   Underground  15 20 -25.0 2,485 2,599 -4.4 3.86 3.69 4.6
   Surface  18 16 12.5 395 350 12.9 4.83 4.54 6.3
Louisiana  2 2 - 239 243 -1.6 6.08 7.84 -22.5
   Surface  2 2 - 239 243 -1.6 6.08 7.84 -22.5
Maryland  22 22 - 375 490 -23.5 2.8 4.82 -41.9
   Underground  4 5 -20.0 131 205 -36.1 2.09 6.1 -65.7
   Surface  18 17 5.9 244 285 -14.4 3.19 3.81 -16.1
Mississippi  1 1 - 177 178 -0.6 9.99 10.38 -3.8
   Surface  1 1 - 177 178 -0.6 9.99 10.38 -3.8
Missouri  2 2 - 14 20 -30 6.96 10.2 -31.8
   Surface  2 2 - 14 20 -30 6.96 10.2 -31.8
Montana  6 6 - 986 942 4.7 22.2 21.98 1
   Underground  1 1 - 16 58 -72.4 1.46 2.65 -45
   Surface  5 5 - 970 884 9.7 22.55 23.3 -3.2
New Mexico  6 5 20.0 1,356 1,372 -1.2 9.03 8.62 4.7
   Underground  2 2 - 374 368 1.6 9.11 8.07 12.9
   Surface  4 3 33.3 982 1,004 -2.2 9 8.85 1.7
North Dakota  5 5 - 975 947 3 15.7 16.91 -7.2
   Surface  5 5 - 975 947 3 15.7 16.91 -7.2
Ohio  73 71 2.8 2,496 2,413 3.4 4.05 4.04 0.4
   Underground  21 20 5.0 1,481 1,384 7 4.76 4.81 -1
   Surface  52 51 2.0 1,015 1,029 -1.4 3.01 3.06 -1.7
Oklahoma  9 10 -10.0 237 224 5.8 2.78 3.35 -16.9
   Underground  2 2 - 84 73 15.1 2.65 2.44 8.8
   Surface  7 8 -12.5 153 151 1.3 2.85 3.78 -24.6
Pennsylvania Total  349 358 -2.5 7,649 7,526 1.6 3.73 3.9 -4.3
   Underground  82 87 -5.7 5,206 5,099 2.1 4.39 4.52 -2.8
   Surface  267 271 -1.5 2,443 2,427 0.7 2.2 2.44 -9.9
  Anthracite  120 124 -3.2 910 869 4.7 0.89 0.95 -6.6
   Underground  30 35 -14.3 192 226 -15 0.68 0.68 *
   Surface  90 89 1.1 718 643 11.7 0.94 1.04 -10.2
  Bituminous  229 234 -2.1 6,739 6,657 1.2 4.05 4.21 -3.7
   Underground  52 52 - 5,014 4,873 2.9 4.5 4.65 -3.3
   Surface  177 182 -2.7 1,725 1,784 -3.3 2.67 2.87 -7.2
Tennessee  28 36 -22.2 566 660 -14.2 2.1 2.06 2
   Underground  9 16 -43.8 220 333 -33.9 1.92 1.97 -2.2
   Surface  19 20 -5.0 346 327 5.8 2.21 2.14 3.3
Texas  11 12 -8.3 2,216 2,138 3.6 8.82 9.9 -10.9
   Surface  11 12 -8.3 2,216 2,138 3.6 8.82 9.9 -10.9
Utah  18 20 -10.0 2,012 2,036 -1.2 5.79 6.15 -5.8
   Underground  17 19 -10.5 2,006 2,030 -1.2 5.81 6.18 -5.9
   Surface  1 1 - 6 6 - - - -
Virginia  160 170 -5.9 4,763 5,262 -9.5 2.47 2.67 -7.4
   Underground  94 98 -4.1 3,363 3,623 -7.2 2.25 2.48 -9.4
   Surface  66 72 -8.3 1,400 1,639 -14.6 2.96 3.07 -3.5
Washington  - 1 -100.0 - 673 -100 - 2.03 -100
   Surface  - 1 -100.0 - 673 -100 - 2.03 -100
West Virginia Total  418 419 -0.2 20,049 20,076 -0.1 3.32 3.32 *
   Underground  239 247 -3.2 13,441 13,190 1.9 2.82 2.87 -1.5
   Surface  179 172 4.1 6,608 6,886 -4 4.25 4.14 2.7
  Northern  65 70 -7.1 4,540 4,621 -1.8 4.08 4.12 -0.8
   Underground  34 41 -17.1 3,889 3,982 -2.3 4.05 4.02 0.9
   Surface  31 29 6.9 651 639 1.9 4.26 4.78 -10.8
  Southern  353 349 1.1 15,509 15,455 0.3 3.1 3.09 0.4
   Underground  205 206 -0.5 9,552 9,208 3.7 2.3 2.36 -2.5
   Surface  148 143 3.5 5,957 6,247 -4.6 4.25 4.08 4.1
Wyoming  21 21 - 6,383 5,837 9.4 33.3 35.46 -6.1
   Underground  1 1 - 204 128 59.4 6.47 1.84 252.6
   Surface  20 20 - 6,179 5,709 8.2 34.19 36.24 -5.7
Appalachian Total  1,632 1,700 -4.0 53,854 55,632 -3.2 3.1 3.13 -0.9
   Underground  713 767 -7.0 34,961 35,758 -2.2 2.91 2.95 -1.3
   Surface  919 933 -1.5 18,893 19,874 -4.9 3.44 3.45 -0.3
  Northern  509 521 -2.3 15,060 15,050 0.1 3.87 4.02 -3.7
   Underground  141 153 -7.8 10,707 10,670 0.3 4.29 4.4 -2.5
   Surface  368 368 - 4,353 4,380 -0.6 2.76 3.02 -8.5
  Central  1,060 1,111 -4.6 34,938 36,387 -4 2.86 2.89 -0.8
   Underground  558 600 -7.0 21,793 22,467 -3 2.29 2.38 -3.6
   Surface  502 511 -1.8 13,145 13,920 -5.6 3.74 3.67 2
  Southern  63 68 -7.4 3,856 4,195 -8.1 2.23 2.01 10.9
   Underground  14 14 - 2,461 2,621 -6.1 2.08 1.74 19.1
   Surface  49 54 -9.3 1,395 1,574 -11.4 2.49 2.51 -1
Interior Total  136 146 -6.8 12,829 12,691 1.1 4.85 5.1 -4.8
   Underground  52 59 -11.9 7,433 7,451 -0.2 3.52 3.54 -0.8
   Surface  84 87 -3.4 5,396 5,240 3 6.76 7.35 -8
  Illinois Basin  106 114 -7.0 9,794 9,784 0.1 4.04 4.07 -0.7
   Underground  49 56 -12.5 7,264 7,337 -1 3.56 3.57 -0.3
   Surface  57 58 -1.7 2,530 2,447 3.4 5.39 5.49 -1.8
Western Total  71 74 -4.1 14,490 14,550 -0.4 20.4 20.19 1
   Underground  30 31 -3.2 4,329 4,266 1.5 6.73 6.77 -0.6
   Surface  41 43 -4.7 10,161 10,284 -1.2 26.28 25.7 2.3
  Powder River Basin  18 18 - 6,399 5,852 9.3 35.3 37.57 -6
   Underground  - - - - - - - - -
   Surface  18 18 - 6,399 5,852 9.3 35.3 37.57 -6
  Uinta Region  28 31 -9.7 4,165 4,182 -0.4 6.76 7.11 -4.9
   Underground  24 26 -7.7 3,668 3,657 0.3 6.6 6.92 -4.7
   Surface  4 5 -20.0 497 525 -5.3 7.97 8.41 -5.2
East of Miss. River  1,739 1,815 -4.2 63,825 65,594 -2.7 3.27 3.29 -0.7
   Underground  762 823 -7.4 42,225 43,095 -2 3.03 3.06 -1
   Surface  977 992 -1.5 21,600 22,499 -4 3.73 3.74 -0.3
West of Miss. River  100 105 -4.8 17,348 17,279 0.4 18.23 18.33 -0.5
   Underground  33 34 -2.9 4,498 4,380 2.7 6.52 6.62 -1.4
   Surface  67 71 -5.6 12,850 12,899 -0.4 22.36 22.27 0.4
Subtotal  1,839 1,920 -4.2 81,173 82,873 -2.1 6.27 6.27 0.1
   Underground  795 857 -7.2 46,723 47,475 -1.6 3.34 3.37 -0.6
   Surface  1,044 1,063 -1.8 34,450 35,398 -2.7 10.25 10.19 0.6
Refuse Recovery  20 15 33.3 105 86 22.1 5.77 4.33 33.3
U.S. Total  1,859 1,935 -3.9 81,278 82,959 -2 6.27 6.26 0.1
[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