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Powder River Basin Coal Production 
(millions of tons)

Updated March 28, 2011
Tons of Federal Coal Leased vs Tons of Federal Coal Mined Since 1990 (graph; updated February 16, 2010)
Percent of Total US Coal Production Mined from the Powder River Basin, Wyoming (graph; updated February 11, 2010)

MineOperator2010200920082007200620052004200320022001200019991998
North Antelope/RochellePeabody

105.3

 98.6

94.2

91.5

89.7
82.7
82.5
80.10
74.80
74.80
70.70
68.90
64.60
Black ThunderArch

115.2

 73.6

88.2

86.2

92.2
87.5
75.1
62.60
65.10
67.60
60.10
48.70
42.70
Cordero-RojoCloud Peak Energy

39.0

 37.7

39.6

40.5

39.7
37.8
38.8
36.00
38.20
43.50
38.60
45.70
37.00
Jacobs RanchArchdissolved

 38.7

41.1

38.1

39.9
37.3
38.6
35.70
31.70
29.30
28.30
29.10
29.10
CaballoPeabody

23.4

 23.7

31.2

31.2

32.5
30.5
26.4
22.70
26.00
27.10
25.70
26.50
25.90
Belle AyrAlpha Natural Resources

24.8

 28.4

28.7

26.6

24.6
19.5
18.7
17.90
17.40
11.80
15.00
17.80
22.50
Eagle ButteAlpha Natural Resources

22.7

  21.9 

20.8

25.0

25.3
24.1
23.0
24.70
24.90
24.80
18.60
17.40
18.10
AntelopeCloud Peak Energy

35.8

 33.9

35.6

34.5

33.9
30.0
29.7
29.50
26.80
24.60
23.00
22.70
19.40
BuckskinKiewit Mining Properties LLC

25.0

 25.7

26.1

25.3

22.5
19.6
20.3
17.50
18.30
19.10
15.80
15.60
17.30
Coal CreekArch

10.6

 9.9

11.6

10.2

4.7
0.00
0.00
0.00
0.00
0.00
4.20
11.20
7.10
RawhidePeabody

10.6

 16.5 

18.1

17.1

16.2
12.4
6.9
3.70
3.40
0.00
0.00
0.80
5.40
WyodakWyodak
Resources

5.8

 5.9

6.0

5.0

4.7
4.7
4.80
4.80
4.10
3.50
3.00
3.10
3.30
Dry ForkWestern Fuels

5.0

 5.1

5.3

5.3

5.9
4.1
4.5
4.30
4.90
4.00
2.20
1.20
1.00
North RochelleArchdissolved dissolveddissolveddissolved
dissolved
dissolved
12.4
23.90
23.90
23.90
17.80
8.20
0.04
Powder River Basin Total 

423.2

 419.6

446.5

436.6

431.3
390.2
381.7
363.4
359.5
354.0
323.0
316.9
293.40
Wyoming Total  

 

 427.4

462.4

451.3

446.1
403.9
395.8
376.3
 372.8
368.5
338.8
334.0
314.50

Source: Gillette News Record, Casper Star Tribune, and State Mine Inspector