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Bureau of Mines / Minerals yearbook metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)

Westerstrom, L.W.
Coal: bituminous and lignite,   pp. 329-393 ff. PDF (4.8 MB)


Page 329

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  329Coal—Bituminous and Lignite 
By L. W. Westerstrom1 
CONTENTS 
 Page 
Salient statistics 4 
Reserves 5 
Annual average heat rates 7 
Production: 
 Weekly 9 
 Monthly 15 
 By type of mining 10 
 By States 10 
 By counties 19 
 By districts 10 
 Bysizeofmine 16 
Underground mine operation: 
 ' Production data 36 
 Mechanical loading data 41 
Surface mine operations 40 
Preparation 45 
 Bituminous coal and lignite production increased from 552.2 million tons
in 1971 to 595.4 million tons in 1972. The increase occurred primarily as
a result of the increased demand for coal by electric utilities and a rebuilding
of inventories which had been heavily drawn down during the negotiation of
a new wage agreement late in 1971. Production from deep mines increased in
all major coal producing States, while production from surface mine increased
-in Western States and in Alabama, Illinois, and Indiana, -but declined in
Ohio, Pennsylvania, and West Virginia. 
 The average f.o.-b. mine value of coal increased from $7.07 per -ton in
1971 to $7.66 per ton in 1972. The average price of coal at underground and
strip mines increased from $8.87 to $9.70 per ton and from $5.19 to $5.48
per ton respectively. The average rail freight charge on coal declined from
$3.70 per ton in 1971 to $3.67 per ton in 1972. The decline occurred because
there were no general freight rate increases until late in the year, and
unittrain traffic, which has lower per-ton-mile costs, increased nearly 14
million tons. 
Employment: 
 By States 
 By districts____________________ 
 By counties 
Shipments: 
 By railroads and waterways_______ 
 Byunittrain 
By sulfur content - 
Distribution 
Consumption and stocks 
Mine values: 
 By States and counties 
 By type of mining 
By captive and noncaptive mines - - 
Exports 
Imports________________________ 
World production 
 Consumption of bituminous coal and 11g.nite in the United States increased
5.0% principally at electric utility and oven-coke plants. The remaining
principal types of consumers used less coal than in the previous year. Consumer
stock piles were replenished -throughout the year and at the end of December
inventories had been increased by over 21 million tons. 
 Employment increased from 145.7 thousand men in 1971 to 149.3 -thousand
in 1972. Employment in 1972 continued -the upward trend since 1969 as productivity.
measured by tons of output per man per day, declined for the -third consecutive
year. However, the anlount of decline was considerably less than 1970 and
1971. 
 The average output per man per day at all mines fell from 18.02 -tons per
man per day in 1971 to 17.74 tons in 1972. At underground mines output declined
from 12.03 tons to 11.91 tons while output at strip mines increased from
35.69 tons to 35.95 tons per man per day. 
 1lndustry economist, Division of Fossil Fuels— Mineral Supply. 


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