The bulk of the energy data come directly or indirectly from the United Nations Energy Statistics Yearbook. This tends to run about 2-3 years behind. Thus in the summer of 1994 the 1991 Yearbook was available, and in the summer of 1997 the 1995 Yearbook was available.
Notes on alternative sources:
The WDI CD-ROM time series data has some data on electricity production (1994 data on 1997 disk) and a potentially useful series on traditional fuel use (through 1993 on 1997 disk in kt of oil equivalent; apparently from WRI as initial source). The print volume has similarly limited tables.
The UN Statistical Yearbook CD-ROM available in early 1997 has only limited energy data through 1993.
The WRI Database Diskette has a great deal of the data we need, but the 1996-97 database has data only through 1993. For instance, that source has production in petajoules of solid fuel, liquid fuel, gaseous fuel, geothermal, hydroelectric, and nuclear. It also has energy imports and exports in petajoules, proved recoverable oil reserves, natural gas reserves, hard coal reserves, soft coal reserves, uranium reserves, and hydroelectric resources, and traditional fuel consumption (through 1991). Finally, it has commercial energy consumption of gas, electicity, solid fuels, and liquids (also through 1993).
ENM. Energy imports, million metric tons of oil equivalent. Taken from Table 2, imports column of the United Nations Energy Statistics Yearbook published in 1996. Used 1994 data that was measured in thousand metric tons of oil equivalent and converted data to million metric tons. Multiplied million metric tons by 7.33 to receive million barrels of oil equivalent and divided by 1000 to get billion barrels of oil equivalent.
ENX. Energy exports, million metric tons of oil equivalent. Taken from Table 2 of the United Nations Energy Statistics Yearbook published in 1996. Data from 1994 converted to million metric tons of oil equivalent. Multiplied million metric tons by 7.33 to receive million barrels of oil equivalent and divided by 1000 to get billion barrels of oil equivalent.
ENP Coal. Production of coal in mi8llion metric tons of oil equivalent. Taken from Table 2, solids column of UN Energy Statistics Yearbook published in 1996. Data from 1994 converted from thousand metric tons to million metric tons of oil equivalent. Multiplied million metric tons by 7.33 to receive million barrels of oil equivalent and divided by 1000 to get billion barrels of oil equivalent.
ENP Oil. Production of oil in million metric tons of oil equivalent. Taken from Table 2, liquids column of the UN Energy Statistics Yearbook published in 1996. Data from 1994 converted from thousand metric tons to million metric tons of oil equivalent. Multiplied million metric tons by 7.33 to receive million barrels of oil equ8ivalent and divided by 1000 to get billion barrels of oil equivalent.
ENP Gas. Production of gas in million metric tons of oil equivalent. Taken from Table 2, gas column of the UN Energy Statistics Yearbook published in 1996. Data from 1994 converted from thousand metric tons to million metric tons of oil equivalent. Multiplied million metric tons by 7.33 to receive million barrels of oil equivalent and divided by 1000 to get billion barrels of oil equivalent.
ENP Elec. Total production of electricity in million metric tons of oil equivalent. Taken from Table 2, electricity column of the UN Energy Statistics Yearbook published in 1996. Data from 1994 converted from thousand metric tons to million metric tons of oil equivalent. Multiplied million metric tons by 7.33 to receive million barrels of oil equivalent and divided by 1000 to get billion barrels of oil equivalent.
ENPTherm. Total production of electricity from thermal sources using fossil fuels in million kilowatt hours. Taken from Table 34, thermal sources column of the UN Energy Statistics Yearbook published in 1996. All 1994 data from Table 34 was published in million kilowatt hours. Divided million kilowatt hours of thermal energy by total electricity in million kilowatt hours and then multiplied by total production of electricity in billion barrels of oil equivalent.
ENPHyd. Total production of electricity from hydroelectric sources, in million kilowattt hours. Taken from Table 34, hydro sources column of the UN Energy Statistics Yearbook published in 1996. Divided million kilowatt hours of hydroelectric energy by total electricity in million kilowatt hours and then multiplied by total production of electricity in billion barrels of oil equivalent.
ENPNuc. Total production of electricity from nuclear sources, in million kilowatt hours. Taken from Table 34, nuclear sources column of the UN Energy Statistics Yearbook published in 1996. Divided million kilowatt hours of nuclear energy by total electricity in million kilowatt hours and then multiplied by total production of electricity in billion barrels of oil equivalent.
ENPGeo. Total production of electricity from geothermal sources, in million kilowatt hours. Taken from Table 34, geothermal sources column of the UN Energy Statistics Yearbook. Divided million kilowatt hours of geothermal energy by total electricity production in million kilowatt hours and then multiplied by total production of electricity in billion barrels of oil equivalent.
ENPTot. Total production of electricity from coal, oil, gas, and electricity in million metric tons of oil equivalent. Taken from “Total” column of 1994 statistics of Table 2 of the UN Energy Statistics Yearbook. Data converted from thousand metric tons to million metric tons of oil equivalent. Multiplied data by 7.33 and then divided by 1000 to receive billion barrels of oil equivalent.
GasConsumption. United Nations Yearbook of World Energy Statistics, various years.
GasPrices. United Nations Yearbook of World Energy Statistics, various years.
GasPricesLeaded. Data provided courtesy of Erkki Adourian, International Energy Agency.
GasPricesUnleaded. Data provided courtesy of Erkki Adourian, International Energy Agency.
ReserO. Reserves of oil taken from the Oil and Gas Journal dated December 31, 1996. Data taken from “Estimated Proved Reserves: Jan. 1, 1997” column. Measured in 1,000 bbl. Units. Divided by 1,000,000 to receive billion bbl units.
ReserG. Reserves of gas taken from the Oil and Gas Journal dated December 31, 1996. Data taken from “Estimated Proved Reserves: Jan 1, 1997” column. Measured in bcf units. Divided data by 39,200 and then multiplied by 7.33 to get million barrels of oil and then divided by 1000 to receive billion barrels of oil equivalent.
ReserHdy. Resources of hydroelectric power. Data taken from World Resources Institute published in 1996. Data listed as “Known exploitable potential” measures in Megawatts. Divided by 4,000,000 to get million tons of oil equivalent and then multiplied data by 7.33 and divided data by 1000 to receive barrels of oil equivalent.
ReserHC. Reserves of hard coal taken from the World Resource Institute database published in 1996. Data listed as “Recov Reserves of Hard Coal” measured in MMT. Multiplied ReserHC by 100 and then divided by 15 to get to million tons of oil equivalent. Then multiplied by 7.33 and divided by 1000 to receive billion barrels of oil equivalent.
ReserHC. Reserves of soft coal taken from the World Resources Institute database published in 1996. Data listed as “Recov Reserves of Soft Coal” measured in MMT. Multiplied ReserSC by 100 and then divided by 15 to get to million tons of oil equivalent. Then multiplied by 7.33 and divided by 1000 to receive billion barrels of oil equivalent.
ReserC. Total reserves of coal, sum of hard and soft coal, i.e. the sum of the “ReserHC” and “ReserSC” columns.
ResorC. Coal resources, ultimate. Data indirectly from the World Energy Council (not updated from 1992 to 1995 data load).
ResorO. Oil resources, ultimate. From Masters, Attanasi and Root, 1994. See bibliography of Help.
ResorG. Gas resources, ultimate. From Masters, Attanasi and Root, 1994. See bibliography of Help.