|
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 |
|