Explanation of Terms

NATURAL GAS
    Includes manufactured gas and mixed gas

FUEL OIL
  Residual Fuel Oil
    Includes grades 5 and 6 fuel oils, heavy diesel-type fuel oil, bunker "C"
    fuel oils, heavy gas-enrichment oil, etc.  Quantities are published in
    barrels (42 gallons).

  Distillate Fuel Oil
    Includes grades 1, 2, and 4 fuel oils, light diesel-type fuel oil, light
    gas-enrichment oil, etc.  Quantities are published in barrels (42 gallons)

COAL
    Includes bituminous coal, lignite, and anthracite.  Quantities are
    published in 1,000 short tons.

GASOLINE
    Includes gasoline used in automotive equipment as well as other equipment.

OTHER FUELS
    Includes coke, liquified petroleum gases, wood, and other minor fuels.

UNDISTRIBUTED FUELS
    Some establishments reported total cost of fuels but failed to report the
    cost and quantity of specific fuels used.  Estimates of their total cost
    of fuels are included in the files under undistributed fuels.  Estimates
    for establishments not mailed a report form also are included in
    undistributed fuels.  To the extent that information on detailed fuels
    consumed was not given, data shown for individual fuels in this report
    tend to be understated.

PRODUCED AND CONSUMED FUELS
    Includes fuels produced and consumed at the same establishment for heat or
    power, including coal, crude petroleum, and natural gas.