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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 |
|