Bureau of Mines / Minerals yearbook: Metals, minerals, and fuels 1972
Year 1972, Volume 1 (1972)
Coal: bituminous and lignite, pp. 329-393 ff. PDF (4.8 MB)
Page 12 13 28 48 49 60 52 51 19 58 59 61 63 64 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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