Detailed Estimates of Demonstrated Reserve Base
and Estimated Recoverable Reserves
for U.S. Coal by Heat and Sulfur Content
|
Table A1. Estimates of the Demonstrated Reserve Base of Coal by Btu/Sulfur Range, State, and Type of Mining (Million Short Tons Remaining as of January 1, 1997) |
|||||||
|---|---|---|---|---|---|---|---|
| State and Type of Mining |
Sulfur Content (Pounds of Sulfur per Million Btu) |
Total | |||||
|
Heat Content (Million Btu per Short Ton) |
< 0.41 | 0.41-0.60 | 0.61-0.83 | 0.84-1.67 | 1.68-2.50 | > 2.50 | |
|
Alabama - Surface |
|
|
|
|
|
|
|
|
< 15 |
0.0 |
0.0 |
0.0 |
1,083.0 |
0.0 |
0.0 |
1,083.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
161.7 |
238.1 |
602.5 |
190.7 |
0.0 |
1,192.9 |
|
26+ |
0.0 |
193.6 |
136.9 |
650.0 |
0.0 |
0.0 |
980.4 |
|
Total |
0.0 |
355.2 |
375.0 |
2,335.4 |
190.7 |
0.0 |
3,256.3 |
|
|
|
|
|
|
|
|
|
|
Alabama - Underground |
|
|
|
|
|
|
|
|
< 15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
138.5 |
197.8 |
272.9 |
107.8 |
0.0 |
716.9 |
|
26+ |
0.0 |
158.4 |
0.0 |
415.0 |
0.0 |
0.0 |
573.4 |
|
Total |
0.0 |
296.9 |
197.8 |
687.8 |
107.8 |
0.0 |
1,290.2 |
|
|
|
|
|
|
|
|
|
|
Alabama - Total |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
1,083.0 |
0.0 |
0.0 |
1,083.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
300.1 |
435.9 |
875.3 |
298.4 |
0.0 |
1,909.7 |
|
26+ |
0.0 |
352.0 |
136.9 |
1,064.9 |
0.0 |
0.0 |
1,553.8 |
|
Total |
0.0 |
652.1 |
572.8 |
3,023.2 |
298.4 |
0.0 |
4,546.6 |
|
|
|
|
|
|
|
|
|
|
Alaska, South - Surface |
|
|
|
|
|
|
|
|
<15 |
14.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
14.0 |
|
15-19.99 |
470.2 |
51.6 |
0.0 |
0.0 |
0.0 |
0.0 |
521.8 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
484.2 |
51.6 |
0.0 |
0.0 |
0.0 |
0.0 |
535.8 |
|
|
|
|
|
|
|
|
|
|
Alaska, South - Underground |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
4,083.2 |
87.2 |
0.0 |
0.0 |
0.0 |
0.0 |
4,170.4 |
|
20-22.99 |
0.0 |
17.6 |
0.0 |
0.0 |
0.0 |
0.0 |
17.6 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
4,083.2 |
104.8 |
0.0 |
0.0 |
0.0 |
0.0 |
4,188.0 |
|
|
|
|
|
|
|
|
|
|
Alaska, South - Total |
|
|
|
|
|
|
|
|
<15 |
14.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
14.0 |
|
15-19.99 |
4,553.4 |
138.8 |
0.0 |
0.0 |
0.0 |
0.0 |
4,692.2 |
|
20-22.99 |
0.0 |
17.6 |
0.0 |
0.0 |
0.0 |
0.0 |
17.6 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
4,567.4 |
156.4 |
0.0 |
0.0 |
0.0 |
0.0 |
4,723.8 |
|
|
|
|
|
|
|
|
|
|
Alaska, North - Surface |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
17.4 |
4.9 |
3.9 |
2.4 |
0.0 |
0.0 |
28.5 |
|
20-22.99 |
77.3 |
39.1 |
0.0 |
0.0 |
0.0 |
0.0 |
116.3 |
|
23-25.99 |
16.7 |
5.7 |
0.0 |
0.0 |
0.0 |
0.0 |
22.4 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
111.3 |
49.6 |
3.9 |
2.4 |
0.0 |
0.0 |
167.2 |
|
|
|
|
|
|
|
|
|
|
Alaska, North - Underground |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
129.4 |
36.1 |
28.3 |
17.9 |
0.0 |
0.0 |
211.7 |
|
20-22.99 |
569.4 |
286.5 |
0.0 |
0.0 |
0.0 |
0.0 |
855.9 |
|
23-25.99 |
125.6 |
41.9 |
0.0 |
0.0 |
0.0 |
0.0 |
167.5 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
824.3 |
364.4 |
28.3 |
17.9 |
0.0 |
0.0 |
1,235.0 |
|
|
|
|
|
|
|
|
|
|
Alaska, North - Total |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
146.8 |
40.9 |
32.2 |
20.3 |
0.0 |
0.0 |
240.2 |
|
20-22.99 |
646.7 |
325.5 |
0.0 |
0.0 |
0.0 |
0.0 |
972.2 |
|
23-25.99 |
142.2 |
47.6 |
0.0 |
0.0 |
0.0 |
0.0 |
189.9 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
935.6 |
414.1 |
32.2 |
20.3 |
0.0 |
0.0 |
1,402.2 |
|
|
|
|
|
|
|
|
|
|
Arizona - Surface |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
59.3 |
0.0 |
0.0 |
0.0 |
0.0 |
59.3 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
0.0 |
59.3 |
0.0 |
0.0 |
0.0 |
0.0 |
59.3 |
|
|
|
|
|
|
|
|
|
|
Arizona - Underground |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
101.6 |
0.0 |
0.0 |
0.0 |
0.0 |
101.6 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
0.0 |
101.6 |
0.0 |
0.0 |
0.0 |
0.0 |
101.6 |
|
|
|
|
|
|
|
|
|
|
Arizona - Total |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
160.9 |
0.0 |
0.0 |
0.0 |
0.0 |
160.9 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
0.0 |
160.9 |
0.0 |
0.0 |
0.0 |
0.0 |
160.9 |
|
|
|
|
|
|
|
|
|
|
Arkansas - Surface |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
25.3 |
0.0 |
0.0 |
25.3 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.5 |
0.5 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
2.2 |
104.2 |
9.2 |
1.5 |
1.5 |
118.7 |
|
Total |
0.0 |
2.2 |
104.2 |
34.5 |
1.5 |
2.0 |
144.4 |
|
|
|
|
|
|
|
|
|
|
Arkansas - Underground |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
1.9 |
1.9 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
14.2 |
192.7 |
43.5 |
10.1 |
10.1 |
270.6 |
|
Total |
0.0 |
14.2 |
192.7 |
43.5 |
10.1 |
12.0 |
272.5 |
|
|
|
|
|
|
|
|
|
|
Arkansas - Total |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
25.3 |
0.0 |
0.0 |
25.3 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
2.4 |
2.4 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
16.3 |
296.9 |
52.8 |
11.7 |
11.7 |
389.3 |
|
Total |
0.0 |
16.3 |
296.9 |
78.0 |
11.7 |
14.0 |
416.9 |
|
|
|
|
|
|
|
|
|
|
Colorado - Surface |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
4,189.9 |
0.0 |
0.0 |
0.0 |
4,189.9 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
144.1 |
0.0 |
10.5 |
12.4 |
0.0 |
0.0 |
166.9 |
|
23-25.99 |
191.6 |
143.5 |
25.2 |
39.2 |
17.6 |
0.0 |
417.0 |
|
26+ |
0.0 |
3.6 |
0.0 |
0.0 |
0.0 |
0.0 |
3.6 |
|
Total |
335.6 |
147.1 |
4,225.5 |
51.6 |
17.6 |
0.0 |
4,777.4 |
|
|
|
|
|
|
|
|
|
|
Colorado - Underground |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
2,666.2 |
1,099.1 |
64.4 |
0.0 |
0.0 |
0.0 |
3,829.6 |
|
20-22.99 |
1,418.7 |
1,564.4 |
239.3 |
151.7 |
0.0 |
0.0 |
3,374.1 |
|
23-25.99 |
2,159.1 |
1,214.1 |
311.1 |
306.3 |
155.1 |
0.0 |
4,145.6 |
|
26+ |
201.0 |
281.5 |
65.2 |
81.6 |
0.0 |
0.0 |
629.2 |
|
Total |
6,445.0 |
4,159.0 |
679.9 |
539.6 |
155.1 |
0.0 |
11,978.5 |
|
|
|
|
|
|
|
|
|
|
Colorado - Total |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
4,189.9 |
0.0 |
0.0 |
0.0 |
4,189.9 |
|
15-19.99 |
2,666.2 |
1,099.1 |
64.4 |
0.0 |
0.0 |
0.0 |
3,829.6 |
|
20-22.99 |
1,562.8 |
1,564.4 |
249.7 |
164.1 |
0.0 |
0.0 |
3,541.1 |
|
23-25.99 |
2,350.6 |
1,357.6 |
336.3 |
345.5 |
172.6 |
0.0 |
4,562.6 |
|
26+ |
201.0 |
285.1 |
65.2 |
81.6 |
0.0 |
0.0 |
632.8 |
|
Total |
6,780.6 |
4,306.1 |
4,905.4 |
591.2 |
172.6 |
0.0 |
16,755.9 |
|
|
|
|
|
|
|
|
|
|
Georgia - Surface |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
0.1 |
0.0 |
0.2 |
0.0 |
0.0 |
0.2 |
|
26+ |
0.3 |
0.5 |
0.5 |
0.0 |
0.1 |
0.1 |
1.5 |
|
Total |
0.3 |
0.6 |
0.5 |
0.2 |
0.1 |
0.1 |
1.7 |
|
|
|
|
|
|
|
|
|
|
Georgia - Underground |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
0.1 |
0.0 |
0.1 |
0.0 |
0.0 |
0.2 |
|
26+ |
0.8 |
0.3 |
0.2 |
0.1 |
0.2 |
0.2 |
1.7 |
|
Total |
0.8 |
0.4 |
0.2 |
0.2 |
0.2 |
0.2 |
1.9 |
|
|
|
|
|
|
|
|
|
|
Georgia - Total |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
0.2 |
0.0 |
0.3 |
0.0 |
0.0 |
0.4 |
|
26+ |
1.1 |
0.8 |
0.6 |
0.1 |
0.3 |
0.3 |
3.2 |
|
Total |
1.1 |
1.0 |
0.6 |
0.4 |
0.3 |
0.3 |
3.6 |
|
|
|
|
|
|
|
|
|
|
State and Type of Mining |
Sulfur Content |
Total |
|||||
|
Heat Content |
< 0.41 |
0.41-0.60 |
0.61-0.83 |
0.84-1.67 |
1.68-2.50 |
> 2.50 |
|
|
Idaho - Surface |
|
|
|
|
|
|
|
|
<15 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
15-19.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
20-22.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
23-25.99 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
26+ |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
|
Total |
0.0 |
||||||