EIA - Coal Production by Coalbed Thickness and Mine Type

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Coal Production by Coalbed Thickness and Mine Type

Table 4. xls pdf Annual Coal Report
Table 4. Coal Production by Coalbed Thickness and Mine Type, 2008 (Thousand Short Tons)
Coalbed Thickness (inches)	Underground	Surface	Total
< 7	-	311	311
7-12	-	3,692	3,692
13-18	337	7,953	8,290
19-24	1,502	17,116	18,618
25-30	3,607	20,708	24,316
31-36	22,426	27,652	50,078
37-42	24,126	28,005	52,131
43-48	34,316	21,139	55,456
49-54	28,396	31,747	60,143
55-60	40,644	19,644	60,288
61-66	34,666	18,905	53,571
67-72	62,068	12,532	74,600
73-78	14,244	3,305	17,549
79-84	15,243	12,439	27,682
85-90	11,938	10,761	22,699
91-96	3,901	8,367	12,268
97-102	12,431	5,938	18,370
103-108	2,689	9,213	11,902
109-114	6,212	1,739	7,951
115-120	3,897	11,432	15,330
> 120	34,237	540,043	574,279
Unknown[1]	199	678	2,285
U.S. Total	357,079	813,322	1,171,809
[1] Includes mines with production of less than 10,000 short tons, which are not required to provide data, and refuse recovery. - = No data are reported. Note: · Totals may not equal sum of components because of independent rounding. Source: · Energy Information Administration Form EIA-7A, "Coal Production Report," and U.S. Department of Labor, Mine Safety and Health Administration, Form 7000-2, "Quarterly Mine Employment and Coal Production Report."