Note:· Open
market includes all coal sold on the open market
to other coal companies or consumers. An average
open market sales price is calculated by dividing the
total free on board (f.o.b) rail/barge value of the
open market coal sold by the total open market coal
sold. Excludes mines producing less than
10,000 short tons, which are not required to provide
data. Excludes silt, culm, refuse bank, slurry
dam, and dredge operations. 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."