1983-2007, Number of Mining Employees, Total Number of Hours Worked, and Number of Full-Time Equivalent Employees by Underground/Surface Work Location and Mining Commodity Sector by Year; Excludes Office Employees; Data Source: MSHA
Sum
Year Commodity Underground/Surface work location Number of employees Employee hours Full-time equivalent employees
1983 Coal operator Underground 89,040 154,508,328 77,254
Surface 88,633 164,331,055 82,166
Total 177,673 318,839,383 159,420
Metal operator Underground 9,322 16,361,866 8,181
Surface 35,761 66,828,927 33,414
Total 45,083 83,190,793 41,595
Nonmetal operator Underground 4,220 8,098,523 4,049
Surface 26,507 51,140,475 25,570
Total 30,727 59,238,998 29,619
Stone operator Underground 1,357 2,578,560 1,289
Surface 65,677 123,643,826 61,822
Total 67,034 126,222,386 63,111
Sand & gravel operator Underground


Surface 30,350 47,538,705 23,769
Total 30,350 47,538,705 23,769
Coal contractor Underground 763 985,797 493
Surface 10,549 11,103,924 5,552
Total 11,312 12,089,721 6,045
Noncoal contractor Underground 816 977,736 489
Surface 10,919 10,479,079 5,240
Total 11,735 11,456,815 5,728
Total Underground 105,518 183,510,810 91,755
Surface 268,396 475,065,991 237,533
Total 373,914 658,576,801 329,288
1984 Coal operator Underground 92,744 167,137,450 83,569
Surface 91,949 177,547,718 88,774
Total 184,693 344,685,168 172,343
Metal operator Underground 9,292 16,426,707 8,213
Surface 34,938 66,217,359 33,109
Total 44,230 82,644,066 41,322
Nonmetal operator Underground 4,303 8,455,444 4,228
Surface 28,238 54,917,664 27,459
Total 32,541 63,373,108 31,687
Stone operator Underground 1,494 2,862,197 1,431
Surface 68,440 132,395,586 66,198
Total 69,934 135,257,783 67,629
Sand & gravel operator Underground


Surface 32,251 52,276,505 26,138
Total 32,251 52,276,505 26,138
Coal contractor Underground 810 1,020,879 510
Surface 12,094 12,279,442 6,140
Total 12,904 13,300,321 6,650
Noncoal contractor Underground 759 947,058 474
Surface 11,025 12,641,957 6,321
Total 11,784 13,589,015 6,795
Total Underground 109,402 196,849,735 98,425
Surface 278,935 508,276,231 254,138
Total 388,337 705,125,966 352,563
1985 Coal operator Underground 87,905 161,134,385 80,567
Surface 86,011 165,167,075 82,584
Total 173,916 326,301,460 163,151
Metal operator Underground 8,177 14,298,452 7,149
Surface 30,508 57,350,155 28,675
Total 38,685 71,648,607 35,824
Nonmetal operator Underground 3,858 7,637,052 3,819
Surface 27,861 52,628,015 26,314
Total 31,719 60,265,067 30,133
Stone operator Underground 1,435 2,799,062 1,400
Surface 69,354 134,452,335 67,226
Total 70,789 137,251,397 68,626
Sand & gravel operator Underground


Surface 34,245 55,225,083 27,613
Total 34,245 55,225,083 27,613
Coal contractor Underground 1,168 1,326,880 663
Surface 11,769 13,703,711 6,852
Total 12,937 15,030,591 7,515
Noncoal contractor Underground 754 922,852 461
Surface 13,265 14,558,777 7,279
Total 14,019 15,481,629 7,741
Total Underground 103,297 188,118,683 94,059
Surface 273,013 493,085,151 246,543
Total 376,310 681,203,834 340,602
1986 Coal operator Underground 81,751 150,207,935 75,104
Surface 81,580 155,349,105 77,675
Total 163,331 305,557,040 152,779
Metal operator Underground 7,071 13,060,046 6,530
Surface 27,281 51,895,568 25,948
Total 34,352 64,955,614 32,478
Nonmetal operator Underground 3,578 6,826,953 3,413
Surface 25,749 48,465,132 24,233
Total 29,327 55,292,085 27,646
Stone operator Underground 1,470 2,916,982 1,458
Surface 67,761 135,689,916 67,845
Total 69,231 138,606,898 69,303
Sand & gravel operator Underground


Surface 34,751 57,883,240 28,942
Total 34,751 57,883,240 28,942
Coal contractor Underground 892 959,018 480
Surface 11,377 13,038,169 6,519
Total 12,269 13,997,187 6,999
Noncoal contractor Underground 735 856,471 428
Surface 13,764 15,325,995 7,663
Total 14,499 16,182,466 8,091
Total Underground 95,497 174,827,405 87,414
Surface 262,263 477,647,125 238,824
Total 357,760 652,474,530 326,237
1987 Coal operator Underground 74,553 139,007,598 69,504
Surface 76,337 146,331,672 73,166
Total 150,890 285,339,270 142,670
Metal operator Underground 6,883 13,010,347 6,505
Surface 30,715 58,598,205 29,299
Total 37,598 71,608,552 35,804
Nonmetal operator Underground 3,323 6,617,507 3,309
Surface 24,523 48,500,892 24,250
Total 27,846 55,118,399 27,559
Stone operator Underground 1,486 2,885,904 1,443
Surface 67,159 136,793,883 68,397
Total 68,645 139,679,787 69,840
Sand & gravel operator Underground


Surface 35,229 59,256,511 29,628
Total 35,229 59,256,511 29,628
Coal contractor Underground 744 660,324 330
Surface 12,171 13,528,559 6,764
Total 12,915 14,188,883 7,094
Noncoal contractor Underground 689 899,624 450
Surface 15,165 17,841,883 8,921
Total 15,854 18,741,507 9,371
Total Underground 87,678 163,081,304 81,541
Surface 261,299 480,851,605 240,426
Total 348,977 643,932,909 321,966
1988 Coal operator Underground 70,863 132,894,764 66,447
Surface 72,410 139,744,848 69,872
Total 143,273 272,639,612 136,320
Metal operator Underground 7,452 14,713,725 7,357
Surface 34,758 68,740,960 34,370
Total 42,210 83,454,685 41,727
Nonmetal operator Underground 3,475 7,273,046 3,637
Surface 24,902 50,278,847 25,139
Total 28,377 57,551,893 28,776
Stone operator Underground 1,469 3,007,123 1,504
Surface 67,877 137,463,487 68,732
Total 69,346 140,470,610 70,235
Sand & gravel operator Underground


Surface 35,505 60,360,922 30,180
Total 35,505 60,360,922 30,180
Coal contractor Underground 912 826,322 413
Surface 12,994 14,503,672 7,252
Total 13,906 15,329,994 7,665
Noncoal contractor Underground 938 1,088,208 544
Surface 20,284 25,012,234 12,506
Total 21,222 26,100,442 13,050
Total Underground 85,109 159,803,188 79,902
Surface 268,730 496,104,970 248,052
Total 353,839 655,908,158 327,954
1989 Coal operator Underground 68,311 129,357,108 64,679
Surface 69,419 137,487,577 68,744
Total 137,730 266,844,685 133,422
Metal operator Underground 7,751 14,865,632 7,433
Surface 39,401 78,055,792 39,028
Total 47,152 92,921,424 46,461
Nonmetal operator Underground 3,703 7,578,462 3,789
Surface 25,149 50,439,821 25,220
Total 28,852 58,018,283 29,009
Stone operator Underground 1,537 3,029,414 1,515
Surface 66,281 134,123,768 67,062
Total 67,818 137,153,182 68,577
Sand & gravel operator Underground


Surface 35,600 60,288,279 30,144
Total 35,600 60,288,279 30,144
Coal contractor Underground 1,278 1,278,715 639
Surface 16,321 17,892,867 8,946
Total 17,599 19,171,582 9,586
Noncoal contractor Underground 914 933,492 467
Surface 23,964 27,834,714 13,917
Total 24,878 28,768,206 14,384
Total Underground 83,494 157,042,823 78,521
Surface 276,135 506,122,818 253,061
Total 359,629 663,165,641 331,583
1990 Coal operator Underground 69,168 134,269,368 67,135
Surface 69,857 140,003,483 70,002
Total 139,025 274,272,851 137,136
Metal operator Underground 7,522 14,923,497 7,462
Surface 40,455 81,888,429 40,944
Total 47,977 96,811,926 48,406
Nonmetal operator Underground 3,797 7,609,520 3,805
Surface 25,240 49,639,081 24,820
Total 29,037 57,248,601 28,624
Stone operator Underground 1,547 3,123,546 1,562
Surface 65,310 132,124,816 66,062
Total 66,857 135,248,362 67,624
Sand & gravel operator Underground


Surface 35,899 59,855,099 29,928
Total 35,899 59,855,099 29,928
Coal contractor Underground 1,787 1,752,571 876
Surface 18,965 19,736,454 9,868
Total 20,752 21,489,025 10,745
Noncoal contractor Underground 899 924,626 462
Surface 24,336 26,530,931 13,265
Total 25,235 27,455,557 13,728
Total Underground 84,720 162,603,128 81,302
Surface 280,062 509,778,293 254,889
Total 364,782 672,381,421 336,191
1991 Coal operator Underground 62,720 122,424,583 61,212
Surface 64,930 128,108,301 64,054
Total 127,650 250,532,884 125,266
Metal operator Underground 6,642 13,183,883 6,592
Surface 39,975 81,096,783 40,548
Total 46,617 94,280,666 47,140
Nonmetal operator Underground 3,644 7,419,300 3,710
Surface 23,828 47,790,413 23,895
Total 27,472 55,209,713 27,605
Stone operator Underground 1,495 2,929,923 1,465
Surface 62,330 122,928,416 61,464
Total 63,825 125,858,339 62,929
Sand & gravel operator Underground


Surface 34,335 55,412,419 27,706
Total 34,335 55,412,419 27,706
Coal contractor Underground 1,871 2,011,166 1,006
Surface 20,586 21,105,752 10,553
Total 22,457 23,116,918 11,558
Noncoal contractor Underground 803 1,024,624 512
Surface 26,223 29,106,580 14,553
Total 27,026 30,131,204 15,066
Total Underground 77,175 148,993,479 74,497
Surface 272,207 485,548,664 242,774
Total 349,382 634,542,143 317,271
1992 Coal operator Underground 58,035 113,373,760 56,687
Surface 60,698 121,118,563 60,559
Total 118,733 234,492,323 117,246
Metal operator Underground 6,090 11,452,301 5,726
Surface 39,153 79,141,698 39,571
Total 45,243 90,593,999 45,297
Nonmetal operator Underground 3,594 7,253,717 3,627
Surface 22,905 46,048,505 23,024
Total 26,499 53,302,222 26,651
Stone operator Underground 1,504 3,024,659 1,512
Surface 61,610 122,613,248 61,307
Total 63,114 125,637,907 62,819
Sand & gravel operator Underground


Surface 33,401 55,472,434 27,736
Total 33,401 55,472,434 27,736
Coal contractor Underground 2,343 2,639,908 1,320
Surface 23,055 24,031,958 12,016
Total 25,398 26,671,866 13,336
Noncoal contractor Underground 757 799,847 400
Surface 24,442 26,120,293 13,060
Total 25,199 26,920,140 13,460
Total Underground 72,323 138,544,192 69,272
Surface 265,264 474,546,699 237,273
Total 337,587 613,090,891 306,545
1993 Coal operator Underground 49,747 94,926,083 47,463
Surface 54,687 108,822,603 54,411
Total 104,434 203,748,686 101,874
Metal operator Underground 5,607 10,223,218 5,112
Surface 37,903 77,464,212 38,732
Total 43,510 87,687,430 43,844
Nonmetal operator Underground 3,317 6,710,232 3,355
Surface 22,795 43,721,369 21,861
Total 26,112 50,431,601 25,216
Stone operator Underground 1,535 3,092,881 1,546
Surface 61,641 125,654,400 62,827
Total 63,176 128,747,281 64,374
Sand & gravel operator Underground


Surface 32,867 56,455,109 28,228
Total 32,867 56,455,109 28,228
Coal contractor Underground 2,680 2,787,765 1,394
Surface 25,421 25,676,586 12,838
Total 28,101 28,464,351 14,232
Noncoal contractor Underground 777 877,451 439
Surface 22,977 25,692,333 12,846
Total 23,754 26,569,784 13,285
Total Underground 63,663 118,617,630 59,309
Surface 258,291 463,486,612 231,743
Total 321,954 582,104,242 291,052
1994 Coal operator Underground 51,306 99,941,670 49,971
Surface 55,155 111,010,622 55,505
Total 106,461 210,952,292 105,476
Metal operator Underground 5,644 10,668,653 5,334
Surface 36,293 75,609,112 37,805
Total 41,937 86,277,765 43,139
Nonmetal operator Underground 3,236 6,659,681 3,330
Surface 22,752 44,504,148 22,252
Total 25,988 51,163,829 25,582
Stone operator Underground 1,617 3,391,409 1,696
Surface 63,010 129,120,639 64,560
Total 64,627 132,512,048 66,256
Sand & gravel operator Underground


Surface 34,379 58,920,694 29,460
Total 34,379 58,920,694 29,460
Coal contractor Underground 2,630 2,614,436 1,307
Surface 26,427 26,904,493 13,452
Total 29,057 29,518,929 14,759
Noncoal contractor Underground 1,040 1,182,276 591
Surface 28,117 31,241,627 15,621
Total 29,157 32,423,903 16,212
Total Underground 65,473 124,458,125 62,229
Surface 266,133 477,311,335 238,656
Total 331,606 601,769,460 300,885
1995 Coal operator Underground 47,131 94,092,742 47,046
Surface 50,205 101,125,559 50,563
Total 97,336 195,218,301 97,609
Metal operator Underground 6,060 11,744,082 5,872
Surface 37,445 78,788,400 39,394
Total 43,505 90,532,482 45,266
Nonmetal operator Underground 3,345 6,486,790 3,243
Surface 21,790 44,615,911 22,308
Total 25,135 51,102,701 25,551
Stone operator Underground 1,617 3,423,888 1,712
Surface 63,717 131,740,120 65,870
Total 65,334 135,164,008 67,582
Sand & gravel operator Underground


Surface 32,970 59,226,917 29,613
Total 32,970 59,226,917 29,613
Coal contractor Underground 2,306 2,255,842 1,128
Surface 24,423 25,480,632 12,740
Total 26,729 27,736,474 13,868
Noncoal contractor Underground 1,075 1,468,520 734
Surface 32,511 36,511,954 18,256
Total 33,586 37,980,474 18,990
Total Underground 61,534 119,471,864 59,736
Surface 263,061 477,489,493 238,745
Total 324,595 596,961,357 298,481
1996 Coal operator Underground 44,442 90,647,735 45,324
Surface 46,770 96,967,079 48,484
Total 91,212 187,614,814 93,807
Metal operator Underground 6,139 12,189,920 6,095
Surface 38,159 81,281,477 40,641
Total 44,298 93,471,397 46,736
Nonmetal operator Underground 3,166 6,602,819 3,301
Surface 21,716 45,124,155 22,562
Total 24,882 51,726,974 25,863
Stone operator Underground 1,582 3,438,121 1,719
Surface 63,874 133,007,665 66,504
Total 65,456 136,445,786 68,223
Sand & gravel operator Underground


Surface 33,152 60,001,094 30,001
Total 33,152 60,001,094 30,001
Coal contractor Underground 2,377 2,882,551 1,441
Surface 25,750 26,945,704 13,473
Total 28,127 29,828,255 14,914
Noncoal contractor Underground 1,192 1,796,424 898
Surface 31,222 36,190,358 18,095
Total 32,414 37,986,782 18,993
Total Underground 58,898 117,557,570 58,779
Surface 260,643 479,517,532 239,759
Total 319,541 597,075,102 298,538
1997 Coal operator Underground 43,111 88,331,934 44,166
Surface 45,943 95,411,236 47,706
Total 89,054 183,743,170 91,872
Metal operator Underground 6,221 12,472,635 6,236
Surface 37,292 78,406,702 39,203
Total 43,513 90,879,337 45,440
Nonmetal operator Underground 3,082 6,457,444 3,229
Surface 21,313 44,498,298 22,249
Total 24,395 50,955,742 25,478
Stone operator Underground 1,650 3,619,880 1,810
Surface 65,100 135,542,233 67,771
Total 66,750 139,162,113 69,581
Sand & gravel operator Underground


Surface 33,872 62,095,958 31,048
Total 33,872 62,095,958 31,048
Coal contractor Underground 2,644 3,617,884 1,809
Surface 27,345 28,986,982 14,493
Total 29,989 32,604,866 16,302
Noncoal contractor Underground 1,415 1,664,831 832
Surface 36,548 38,355,019 19,178
Total 37,963 40,019,850 20,010
Total Underground 58,123 116,164,608 58,082
Surface 267,413 483,296,428 241,648
Total 325,536 599,461,036 299,731
1998 Coal operator Underground 41,118 84,749,157 42,375
Surface 44,396 92,548,701 46,274
Total 85,514 177,297,858 88,649
Metal operator Underground 5,855 11,523,977 5,762
Surface 34,169 70,952,391 35,476
Total 40,024 82,476,368 41,238
Nonmetal operator Underground 2,908 5,862,116 2,931
Surface 20,717 43,636,093 21,818
Total 23,625 49,498,209 24,749
Stone operator Underground 1,727 3,852,906 1,926
Surface 66,772 139,599,650 69,800
Total 68,499 143,452,556 71,726
Sand & gravel operator Underground


Surface 35,666 65,200,650 32,600
Total 35,666 65,200,650 32,600
Coal contractor Underground 3,122 3,482,240 1,741
Surface 26,674 29,625,062 14,813
Total 29,796 33,107,302 16,554
Noncoal contractor Underground 1,532 2,280,862 1,140
Surface 36,518 38,547,586 19,274
Total 38,050 40,828,448 20,414
Total Underground 56,262 111,751,258 55,876
Surface 264,912 480,110,133 240,055
Total 321,174 591,861,391 295,931
1999 Coal operator Underground 37,275 77,079,658 38,540
Surface 41,726 86,046,910 43,023
Total 79,001 163,126,568 81,563
Metal operator Underground 5,294 9,895,473 4,948
Surface 31,003 64,307,378 32,154
Total 36,297 74,202,851 37,101
Nonmetal operator Underground 2,745 5,437,330 2,719
Surface 20,168 41,781,698 20,891
Total 22,913 47,219,028 23,610
Stone operator Underground 1,743 3,905,514 1,953
Surface 67,987 142,049,140 71,025
Total 69,730 145,954,654 72,977
Sand & gravel operator Underground


Surface 37,294 68,723,367 34,362
Total 37,294 68,723,367 34,362
Coal contractor Underground 2,973 3,554,593 1,777
Surface 26,270 28,584,464 14,292
Total 29,243 32,139,057 16,070
Noncoal contractor Underground 1,534 2,510,850 1,255
Surface 41,322 42,814,840 21,407
Total 42,856 45,325,690 22,663
Total Underground 51,564 102,383,418 51,192
Surface 265,770 474,307,797 237,154
Total 317,334 576,691,215 288,346
2000 Coal operator Underground 34,261 70,481,962 35,241
Surface 38,229 80,335,522 40,168
Total 72,490 150,817,484 75,409
Metal operator Underground 4,413 8,813,437 4,407
Surface 28,929 59,954,452 29,977
Total 33,342 68,767,889 34,384
Nonmetal operator Underground 2,456 5,052,716 2,526
Surface 19,659 40,852,188 20,426
Total 22,115 45,904,904 22,952
Stone operator Underground 1,816 3,957,707 1,979
Surface 68,800 142,213,834 71,107
Total 70,616 146,171,541 73,086
Sand & gravel operator Underground


Surface 37,837 68,027,794 34,014
Total 37,837 68,027,794 34,014
Coal contractor Underground 3,402 4,198,304 2,099
Surface 26,399 28,535,937 14,268
Total 29,801 32,734,241 16,367
Noncoal contractor Underground 2,096 2,624,148 1,312
Surface 44,426 48,734,784 24,367
Total 46,522 51,358,932 25,679
Total Underground 48,444 95,128,274 47,564
Surface 264,279 468,654,511 234,327
Total 312,723 563,782,785 281,891
2001 Coal operator Underground 35,643 74,562,468 37,281
Surface 40,491 87,153,401 43,577
Total 76,134 161,715,869 80,858
Metal operator Underground 4,443 8,902,189 4,451
Surface 25,059 52,378,175 26,189
Total 29,502 61,280,364 30,640
Nonmetal operator Underground 2,429 5,183,266 2,592
Surface 18,917 38,436,277 19,218
Total 21,346 43,619,543 21,810
Stone operator Underground 1,810 3,850,874 1,925
Surface 68,320 140,288,373 70,144
Total 70,130 144,139,247 72,070
Sand & gravel operator Underground


Surface 37,508 67,086,918 33,543
Total 37,508 67,086,918 33,543
Coal contractor Underground 4,024 5,313,908 2,657
Surface 28,238 31,352,635 15,676
Total 32,262 36,666,543 18,333
Noncoal contractor Underground 2,118 2,486,963 1,243
Surface 43,556 44,672,391 22,336
Total 45,674 47,159,354 23,580
Total Underground 50,467 100,299,668 50,150
Surface 262,089 461,368,170 230,684
Total 312,556 561,667,838 280,834
2002 Coal operator Underground 34,392 70,439,551 35,220
Surface 40,414 86,762,304 43,381
Total 74,806 157,201,855 78,601
Metal operator Underground 3,886 7,438,917 3,719
Surface 21,690 44,436,186 22,218
Total 25,576 51,875,103 25,938
Nonmetal operator Underground 2,272 4,551,443 2,276
Surface 17,673 36,505,663 18,253
Total 19,945 41,057,106 20,529
Stone operator Underground 1,829 3,750,888 1,875
Surface 67,014 135,978,251 67,989
Total 68,843 139,729,139 69,865
Sand & gravel operator Underground


Surface 37,055 65,506,754 32,753
Total 37,055 65,506,754 32,753
Coal contractor Underground 3,683 4,218,249 2,109
Surface 26,877 29,371,837 14,686
Total 30,560 33,590,086 16,795
Noncoal contractor Underground 1,423 1,651,687 826
Surface 37,818 35,414,623 17,707
Total 39,241 37,066,310 18,533
Total Underground 47,485 92,050,735 46,025
Surface 248,541 433,975,618 216,988
Total 296,026 526,026,353 263,013
2003 Coal operator Underground 32,197 68,783,782 34,392
Surface 38,293 82,066,794 41,033
Total 70,490 150,850,576 75,425
Metal operator Underground 3,695 7,231,668 3,616
Surface 20,987 41,703,892 20,852
Total 24,682 48,935,560 24,468
Nonmetal operator Underground 2,188 4,607,584 2,304
Surface 17,219 36,019,562 18,010
Total 19,407 40,627,146 20,314
Stone operator Underground 1,746 3,699,273 1,850
Surface 66,291 134,779,013 67,390
Total 68,037 138,478,286 69,239
Sand & gravel operator Underground


Surface 36,540 64,953,660 32,477
Total 36,540 64,953,660 32,477
Coal contractor Underground 3,211 3,760,269 1,880
Surface 25,657 28,436,377 14,218
Total 28,868 32,196,646 16,098
Noncoal contractor Underground 1,088 1,474,053 737
Surface 38,405 36,267,204 18,134
Total 39,493 37,741,257 18,871
Total Underground 44,125 89,556,629 44,778
Surface 243,392 424,226,502 212,113
Total 287,517 513,783,131 256,892
2004 Coal operator Underground 33,490 73,512,625 36,756
Surface 39,534 86,625,897 43,313
Total 73,024 160,138,522 80,069
Metal operator Underground 3,905 7,619,658 3,810
Surface 21,300 44,562,614 22,281
Total 25,205 52,182,272 26,091
Nonmetal operator Underground 2,289 4,882,067 2,441
Surface 17,143 35,483,610 17,742
Total 19,432 40,365,677 20,183
Stone operator Underground 1,768 3,900,525 1,950
Surface 66,649 138,405,088 69,203
Total 68,417 142,305,613 71,153
Sand & gravel operator Underground


Surface 37,000 66,727,368 33,364
Total 37,000 66,727,368 33,364
Coal contractor Underground 3,697 4,667,995 2,334
Surface 26,531 31,260,429 15,630
Total 30,228 35,928,424 17,964
Noncoal contractor Underground 1,211 1,783,025 892
Surface 41,300 42,612,187 21,306
Total 42,511 44,395,212 22,198
Total Underground 46,360 96,365,895 48,183
Surface 249,457 445,677,193 222,839
Total 295,817 542,043,088 271,022
2005 Coal operator Underground 36,693 80,877,874 40,439
Surface 41,588 93,489,745 46,745
Total 78,281 174,367,619 87,184
Metal operator Underground 4,128 8,362,302 4,181
Surface 22,314 47,184,616 23,592
Total 26,442 55,546,918 27,773
Nonmetal operator Underground 2,330 4,779,692 2,390
Surface 17,348 35,248,495 17,624
Total 19,678 40,028,187 20,014
Stone operator Underground 1,889 4,280,859 2,140
Surface 67,870 143,019,413 71,510
Total 69,759 147,300,272 73,650
Sand & gravel operator Underground


Surface 37,705 68,515,570 34,258
Total 37,705 68,515,570 34,258
Coal contractor Underground 4,247 5,657,622 2,829
Surface 28,392 34,614,355 17,307
Total 32,639 40,271,977 20,136
Noncoal contractor Underground 1,445 2,122,701 1,061
Surface 45,178 49,056,351 24,528
Total 46,623 51,179,052 25,590
Total Underground 50,732 106,081,050 53,041
Surface 260,395 471,128,545 235,564
Total 311,127 577,209,595 288,605
2006 Coal operator Underground 38,253 85,195,306 42,598
Surface 43,732 96,710,897 48,355
Total 81,985 181,906,203 90,953
Metal operator Underground 4,539 9,149,807 4,575
Surface 24,094 50,436,363 25,218
Total 28,633 59,586,170 29,793
Nonmetal operator Underground 2,374 4,830,187 2,415
Surface 17,240 35,244,170 17,622
Total 19,614 40,074,357 20,037
Stone operator Underground 1,877 4,308,724 2,154
Surface 69,276 144,794,588 72,397
Total 71,153 149,103,312 74,552
Sand & gravel operator Underground


Surface 38,450 69,699,443 34,850
Total 38,450 69,699,443 34,850
Coal contractor Underground 4,762 5,805,623 2,903
Surface 30,703 38,255,873 19,128
Total 35,465 44,061,496 22,031
Noncoal contractor Underground 1,815 2,802,379 1,401
Surface 51,667 56,528,480 28,264
Total 53,482 59,330,859 29,665
Total Underground 53,620 112,092,026 56,046
Surface 275,162 491,669,814 245,835
Total 328,782 603,761,840 301,881
2007 Coal operator Underground 37,829 84,475,287 42,238
Surface 42,524 94,759,293 47,380
Total 80,353 179,234,580 89,617
Metal operator Underground 5,333 10,873,661 5,437
Surface 26,184 55,574,893 27,787
Total 31,517 66,448,554 33,224
Nonmetal operator Underground 2,411 4,955,690 2,478
Surface 16,908 34,926,371 17,463
Total 19,319 39,882,061 19,941
Stone operator Underground 1,845 4,126,528 2,063
Surface 69,066 140,285,815 70,143
Total 70,911 144,412,343 72,206
Sand & gravel operator Underground


Surface 38,182 66,826,618 33,413
Total 38,182 66,826,618 33,413
Coal contractor Underground 5,160 6,142,801 3,071
Surface 31,569 36,705,430 18,353
Total 36,729 42,848,231 21,424
Noncoal contractor Underground 3,039 3,869,325 1,935
Surface 62,058 68,310,959 34,155
Total 65,097 72,180,284 36,090
Total Underground 55,617 114,443,292 57,222
Surface 286,491 497,389,379 248,695
Total 342,108 611,832,671 305,916
Total Coal operator Underground 1,351,978 2,642,413,113 1,321,207
Surface 1,425,511 2,875,025,960 1,437,513
Total 2,777,489 5,517,439,073 2,758,720
Metal operator Underground 151,364 289,406,053 144,703
Surface 795,766 1,612,854,739 806,427
Total 947,130 1,902,260,792 951,130
Nonmetal operator Underground 78,043 157,828,581 78,914
Surface 548,260 1,100,446,853 550,223
Total 626,303 1,258,275,434 629,138
Stone operator Underground 40,845 85,757,347 42,879
Surface 1,657,186 3,368,707,503 1,684,354
Total 1,698,031 3,454,464,850 1,727,232
Sand & gravel operator Underground


Surface 882,043 1,531,537,111 765,769
Total 882,043 1,531,537,111 765,769
Coal contractor Underground 63,486 74,421,662 37,211
Surface 556,557 611,661,304 305,831
Total 620,043 686,082,966 343,041
Noncoal contractor Underground 30,864 39,970,033 19,985
Surface 777,010 836,403,139 418,202
Total 807,874 876,373,172 438,187
Total Underground 1,716,580 3,289,796,789 1,644,898
Surface 6,642,333 11,936,636,609 5,968,318
Total 8,358,913 15,226,433,398 7,613,217

Page last updated: April 17, 2009
Page last reviewed: March 30, 2009
Content Source: National Institute for Occupational Safety and Health (NIOSH) Mining Division