IEA Statistics. Oil Information 2011

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I.16 - OIL INFORMATION (2011 Edition)

Part IV

Annual Oil Statistics (AOS): All data are extracted

from the Annual Oil Statistics (AOS) database (see

Sources and Notes for Part II). For definitions see

Product Definitions and Definition of Supply and

Consumption Items.

Technical note on Tables 8 to 14: Gross consumption

includes consumption of fuels by refineries and ex-

cludes international marine bunkers.

Table 15: Consumption in the Transformation in-

cludes backflows from the petrochemical industry.

Table 16: Consumption in the Energy industry own

use includes refinery fuels.

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OIL INFORMATION (2011 Edition) - I.17

5. COUNTRY NOTES

Please note that as a result of revisions, data in Oil

Information may differ from those published earlier in

Energy Statistics of OECD Countries and Energy

Balances of OECD Countries.

Oil data for 2010 are preliminary, based on Monthly Oil

and Gas Statistics (MOS) unless otherwise specified.

For some countries data in MOS are not fully compati-

ble with Annual Oil Statistics (AOS), therefore MOS

2010 data have been adjusted in order to show consis-

tent time series developments from 2009 to 2010.

Australia

All data: All data refer to fiscal years which run from

1 July to 30 June (e.g. 2010 = 1 July 2009 to

30 June 2010).

Negative refinery losses are due to differences in

treatment of transfers between refineries.

Data after 1973 are based on national surveys. Prior to

1973, there are no detailed data available for autopro-

ducers and for sub-sector industry consumption.

The large drop in industry consumption in 1982-83 is

due to the restructuring of the iron and steel industry,

the economic recession and one of the worst droughts

in history.

Crude oil: The drop in the production in 1999 is due

to a gas explosion at Longford plant. There is a break

in series for crude oil and NGL production between

2001 and 2002.

NGL: Prior to 1992, part of the NGL production is

included in crude oil.

Refinery gas: Prior to 1974, refinery gas is reported

net of consumption in refineries.

LPG, ethane: LPG includes ethane prior to 1991.

Lubricants, white spirit, paraffin waxes: Consump-

tion of lubricants, white spirit/SBP and paraffin waxes

is reported as non-specified industry consumption, as

no further breakdown is available.

Fuel oil: Imports of fuel oil are estimated by the

Australian administration.

There is a break in series for consumption data be-

tween 2001 and 2002, due to a change in data collec-

tion and estimation methodology.

Austria

There are breaks in stock levels between 1989

and 1990.

The industry breakdown is based on a new survey

from 1999 onwards.

Gas/diesel oil: For 1978 and 1979, industry consump-

tion of gas/diesel oil is included with fuel oil.

Other products: As of 1978, "other products" include

paraffin waxes and petroleum coke. Prior to 1990,

they include also naphtha.

Lubricants: Before 1990 consumption of lubricants is

reported in the road sector as no further breakdown is

available.

Belgium

Data for non-metallic minerals, machinery, min-

ing/quarrying, food/beverages, tobacco, pulp/paper/

printing and construction are not available prior to

1971.

Inputs to electricity and CHP plants have been esti-

mated by the Secretariat from year 1974, based on

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I.18 - OIL INFORMATION (2011 Edition)

inputs reported in the Annual Electricity Questionnaire.

The new reporting system started in 2008.

Refinery feedstocks: The decrease of products trans-

ferred in 1995 was due to refinery maintenance of one

month.

Refinery gas: Prior to 1975, refinery gas is reported

net of consumption in refineries.

LPG, gas/diesel oil: LPG and gas/diesel oil con-

sumption in the commercial/public services sector is

included with the residential sector prior to 1976.

Fuel oil: The break in series for fuel oil between 1975

and 1976 is due to a change in classification between

the industry and "other". The decrease in industry con-

sumption since 1993 is due to the introduction of an

excise tax as well as the increased use of natural gas.

Other products, petroleum coke: The break in series

between 1999 and 2000 is due to improvements in the

collection system.

Canada

Other hydrocarbons: Indigenous production of other

hydrocarbons represents synthetic crude oil produced

from tar sands. Prior to 1990, hydrogen used for the

upgrading of synthetic crude oil from “other sources”

was included in the natural gas supply. From 1990, a

different methodology was adopted by the Canadian

Administration and these amounts now are now

shown in other hydrocarbons (part of crude oil).

Canada imported orimulsion from Venezuela from

1994 to 2000.

International marine bunkers are included with inland

waterways prior to 1978.

LPG, ethane: LPG includes ethane prior to 1990.

Ethane is mainly used as petrochemical feedstock.

Kerosene, gas/diesel oil, fuel oil: Several breaks in

series exist for detailed industrial consumption prior

to 1980. From 1980, all consumption data are based

on one survey. However, from 1988 onwards, data for

transport equipment, machinery, food, and textiles are

not available as Statistics Canada has ceased the col-

lection of these data. Separate consumption data for

agriculture (including forestry) are available from

1983 for kerosene, from 1973 for gas/diesel oil and

from 1978 for fuel oil. For previous years, agriculture

consumption is included with residential.

Gas/diesel oil: As of 1982, gas/diesel oil consumed

by fleets in the wholesale/retail service industry is

reported in the commerce/public services sector. Prior

to 1982, it was included in the road sector.

Gasoline type jet fuel: Prior to 1979, gasoline type

jet fuel is included with kerosene type jet fuel.

Naphtha, other products: Recycled products for

naphtha and “other products” include purchases of

feedstock and other additives from non-reporting

companies.

Chile

Data are available starting in 1971.

Stock data are available starting in data year 2009.

Prior to year 2009, the Chilean administration can

only provide data for stock change.

Due to Chilean administration’s changes in account-

ing, breaks in series exist between 2008 and 2009

data.

Czech Republic

Data are available starting in 1971.

Consumption data prior to 1994 are estimated by the

Secretariat. The Czech Administration submitted offi-

cial data from 1994 onwards.

Gas/Diesel Oil: From 1999 the Czech Administration

has implemented a new updating system. It entails

breaks in series for the final consumption.

Fuel oil, other products: From 2002 onwards, some

amounts of fuel oil have been reclassified under other

products. This change mainly affects the transforma-

tion processes.

Denmark

From 1990 onwards, Greenland and Faroe Island

are not included in oil data.

Other hydrocarbons:

Orimulsion imports and inputs

to electricity generation begin in 1995. Orimulsion

import stopped in 2002.

Refinery gas: Prior to 1975, refinery gas is reported

net of consumption in refineries.

Gas/diesel oil, fuel oil: Prior to 1990, gas/diesel oil

and fuel oil used for fishing is included in the inland

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OIL INFORMATION (2011 Edition) - I.19

waterways sector, while after this date it is reported in

the agriculture sector.

Fuel oil: From 1974 to 1979, consumption of fuel oil

for the CHP production by autoproducers has been

estimated. The marked increase in inputs to CHP pro-

duction in 1994 is due to increased electricity exports

to Norway.

All oil consumption in the commercial/public services

sector is included in residential prior to 1976 except

fuel oil which is shown separately in 1975.

Paraffin waxes: As of 1987, separate data on paraf-

fin waxes are no longer available.

Gasoline type jet fuel: Consumption of gasoline type

jet fuel ceased in 1988. From 1989 onwards, only

kerosene type jet fuel is consumed.

Other products: Information on recycling and end-use

consumption begins in 1989, and refers to waste oil.

Data for end-use consumption may vary from year to

year due to a detailed survey which is sent to compa-

nies in Denmark every other year. For non-survey

years, the consumption by end-use is estimated by the

Danish Energy Agency.

Due to better survey methods, inputs to electricity and

heat generation are reclassified as of 1994. There

is therefore a break in series between 1993 and 1994.

The oil inputs used in industrial sub-sectors for

producing surplus of heat, which is delivered to dis-

trict heating networks, are allocated to these industrial

subsectors.

Detail in industry for 1994 and 1995 is based on a

new survey.

Estonia

Data for Estonia are available starting in 1990. Prior

to that, they are included in Non-OECD data in For-

mer Soviet Union.

For the years 1990 to 2007, oil data are based on direct

communication with Statistics Estonia and UN ECE.

Finland

Fuel oil: There is a break in other between 1998 and

1999 due to a new calculation model.

Petroleum coke:

Data on petroleum coke are only

available from 1985 onwards.Before 2002, petroleum

coke used as refinery fuel was included with refinery

gas.

In 1995, there is a break in series for oil products

trade due to the aligning of the National Board

of Customs trade data collection system with the

European Union's Intrastat system.

France

NGL: Ethylene produced in Lacq is not included in

NGL from 2001 onwards.

Additives and oxygenates: Data are available from

1991.

Petroleum coke: The split of petroleum coke

consumption into energy and non-energy use is not

available prior to 1982. Data for non-ferrous metals is

not available since 2000, hence included in non-

specified industry.

LPG, ethane: LPG includes ethane prior to 1988.

Breaks in the time series for LPG consumption are

due to improved data collection.

Prior to 1994, the separation of consumption of LPG by

the tertiary sector between residential and commerce/

public services have been estimated by the Secretariat.

Kerosene type jet fuel: The consumption includes

military use as of 1998.

Gas/diesel oil: Consumption in the non-metallic min-

erals sector has been reclassified as non-ferrous met-

als and vice-versa for years 1982 to 1994. Prior to

1985, residential sector consumption is reported under

commerce/public service sector as no separate data

were available.

Gas/diesel oil, fuel oil: Residential and commerce/

public services sector consumption for gas/diesel and

residual fuel oil has been estimated by the Secretariat

from 1985 to 1998 based on information provided by

the French Administration.

A different treatment of transfers was adopted from

1998. From 1998, imported oil products needing fur-

ther refinery processing are no longer reported as re-

finery feedstock imports but as oil product imports

and products transferred. And from 1999, due to a

reallocation of some products, part of the amounts

previously reported in other products is now reported

in fuel oil.

Since 2001, transfers of various oil products are re-

ported with fuel oils in some years.

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From 2001 onwards, a new methodology was used to

report biofuels in the category additives/blending

components and motor gasoline.

Breaks in data series of LPG and other products con-

sumption between 2000 and 2001 are due a result of

more detailed data surveys.

Additives exports started in 2003 and not used for

direct use anymore. Break in the time series for indus-

trial sub-sectors are due to improved data collection.

Germany

Refinery gas: Prior to 1970, consumption in the

chemical industry is included with refineries' own

consumption.

Jet gasoline, jet kerosene: Beginning with 1994,

there has been a reclassification of jet gasoline to jet

kerosene.

Gas/diesel: In 1989, end-use consumption decreased

due to an exceptionally warm winter and a lowering

of consumer stocks. In 1995, a break in the industry

occurred due to an alignment with the NACE

classifications.

Fuel oil: Prior to 1980, consumption in blast furnaces

was included in the iron and steel sector. From 2000,

part of the product 'Andere Rückstände' (other residues)

is included with fuel oil instead of other products.

Other products: Prior to 1979, data include paraffin

waxes, bitumen, white spirit & SBP and lubricants for

eastern Germany.

Beginning with 1994, there is a break in series for

final consumption by sub-sector due to improved sur-

vey methods instituted by Mineralölwirtschafts

Verband.

Breaks in series before 2003 and 2004 are due to struc-

tural changes caused by the new Energy Statistics Law.

Greece

Crude oil: Production was stopped end November

1998, and started again in December 1999.

Refinery feedstocks:

Data are only reported from

1986 onwards.

Refinery gas: From 1990 onwards, there has been an

increased use of refinery gas in electricity generation,

replacing fuel oil.

Fuel oil: From 1993, more information is available

on the allocation of fuel oil to specific industrial sub-

sectors. Fuel oil consumption in agriculture and resi-

dential has been replaced by Gas/Diesel Oil starting in

1993.

Prior to 1987, consumption in the commerce/public

services sector is included with residential. Peaks in

residential sector consumption in 1978 and 1982 are

due to unusually cold winters.

Due to changed reporting methods, more detailed end-

use information has become available starting in

1996.

Hungary

Refinery gas, paraffin waxes, lubricants: Data

prior to 1993 are partly estimated by the Secretariat.

White spirit: Prior to 1993, white spirit is included in

motor gasoline.

Fuel oil: The breakdown between low and high sul-

phur is available as of 1998.

Additives, aviation gasoline: The data are available

as of 1998.

Other products: From 2004 onwards it includes aro-

matics and other products that were previously in-

cluded mainly under white spirit and SBP.

Beginning with 1993, data were officially submitted

to the IEA by questionnaire.

Iceland

Consumption data prior to 1980 are estimated by the

Secretariat.

Fuel oil: Detailed industry consumption is not avail-

able prior to 1982.

2008 and 2009 oil supply and consumption data are

estimated by the Secretariat.

Ireland

Gas/diesel oil: Gas/diesel oil consumption in the ag-

ricultural sector is available from 1986.

Other kerosene: For the period 1970 to 1977, the

split between commercial and public services and

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OIL INFORMATION (2011 Edition) - I.21

agricultural use of kerosene has been estimated by the

Secretariat.

Consumption in commercial/public services includes

quantities used by state-owned agricultural companies.

LPG, gas/diesel oil, kerosene, fuel oil: End-use data

collected for 1993 are based on a detailed survey con-

ducted by a consulting company. Data for historical

years back to 1990 were revised by the national ad-

ministration based on the results of this survey. Due to

these revisions, breaks in series will exist for years

1989 and 1990 in the end-use breakdown for LPG,

kerosene, gas/diesel oil and fuel oil.

LPG, kerosene type jet fuel, gas/diesel oil and pe-

troleum coke:

There is a break in time series between

2008 and 2009 for LPG, kerosene type jet fuel,

gas/diesel oil, and petroleum coke due to a new meth-

odology being applied to sectoral demand by Sustain-

able Energy Ireland.

The decrease in refinery output in 1996 was due to a

partial refinery shutdown.

White spirit, lubricants, bitumen and paraffin

waxes:

There is a break in series between 2006 and

2007 for white spirit, lubricants, bitumen and paraffin

waxes due to a new methodology being applied to

sectoral demand by Sustainable Energy Ireland (SEI).

Israel

Data for Israel are available starting in 1971.

From 2007 to 2009, oil data are estimated by the IEA

Secretariat based on information from the Ministry of

National Infrastructures.

Italy

Aviation fuels: The aviation fuels show breaks in

series in 1988 due to a change in classification.

Gas/diesel: Non-specified use is included in the

commerce/public sector.

Lubricants: From 2009 onwards, lubricant transfers

data could not be disaggregated from refinery output

data.

Other Oil Products: Refinery output of other oil

products increased due to new methodology.

Inputs to electricity and heat generation have been

estimated by the Secretariat for years 1984 to 1997

based on submissions of the Annual Electricity

questionnaire.

All data for the years 1992 to 1997 and the detailed

consumption breakdown for other years have been

estimated by the Secretariat based on Bilancio Ener-

getico Nazionale. Due to new surveys, breaks appear

in the consumption series between 1998 and 1999.

Japan

Starting in 1990, data are reported on a fiscal year

basis (April 2009 to March 2010 for 2009).

Crude oil, NGL, feedstocks, refinery gas, LPG,

aviation gasoline, motor gasoline, jet gasoline, jet

kerosene, other kerosene

: The Japanese Administra-

tion has revised supply and demand data for years

1960 to 1969. The classification of fuel use between

road transport and internal navigation changed in

1970.

Other hydrocarbons: Other hydrocarbons comprise

sulphuric acid, clay (not white clay) and caustic soda.

Other kerosene: The decrease in end-use consump-

tion in 1982 was due to an exceptionally warm winter.

Lubricants: Consumption in the commerce/public

and fishing begin in 1990.

Petroleum coke: Petroleum coke use in blast fur-

naces series begins in 1990.

Due to improved data collection methods, breaks in

series exist for several products between 1981 and

1983. Due to a change in the reporting system to ex-

clude stock levels at service stations and retail stores,

a break in series exists between 1981 and 1982.

Orimulsion: Imports for electricity generation began

in 1991.

The export and import data of oil products in 1994

and 1995 are in reported on a calendar year basis.

Korea

Data are available starting in 1970.

Stock levels include vessel stocks starting from 1997.

Naphtha, fuel oil: Except for naphtha, inputs of oil

products to autoproducer electricity and autoproducer

CHP are included with final consumption.

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Kerosene type jet fuel: The split between international

civil aviation and domestic air transport has been es-

timated for 1990 to 1995.

Prior to 1994, data are net of backflows to the petro-

chemical industry.

Luxembourg

Gas/diesel oil: For the 2011 edition, data for

gas/diesel oil were revised from 1999.

Fuel oil: Due to the introduction of an excise tax in

1994, all high-sulphur fuel oil consumption has been

replaced by low-sulphur fuel oil.

The reduction in consumption of fuel oil in the iron

and steel industry in the late 1970s is due to substitu-

tion by coal.

Mexico

Data are available starting in 1971.

Because of a change in the processing of the data,

there may be breaks in series between 1998 and 1999.

Gas/Diesel: The breakdowns of transport diesel and

heating oil are available from 1990.

Inputs for autoproducer electricity and heat generation

are included in the industry.

Lubricants, Petroleum Coke: Stock levels are not

available.

Lubricants, paraffin waxes, petroleum coke, other

products:

End Use data of lubricants, paraffin waxes,

petroleum coke are available from 1990 and other oil

products from 1993.

Petroleum Coke: In 2003 the new facility were added

in the refinery to produce the petroleum coke. For the

2011 edition, the Mexican administration revised the

iron and steel sector’s consumption of petroleum

coke.

LPG: Prior to 1987, the split of LPG consumption

between the residential and commercial public ser-

vices has been estimated by the Secretariat.

NGL production reported in the IEA publications may

be different from what is reported in the Mexican en-

ergy publications as the IEA includes in its oil data

liquids produced in conjunction with natural gas.

Netherlands

Significant breaks in series between 1983 and 1984

are due to the introduction of a more comprehensive

survey on end-use consumption. However, aggregated

consumption data for transport, industry and “other”

are not affected. Some breaks in series occur in

2007 when the Dutch Administration has started to

report the petrochemical industry according to IEA

methodology.

Crude oil: Prior to 1994, stocks held by stockholding

entities were not included.

LPG, ethane: LPG includes ethane prior to 1994.

Refinery gas: Data include chemical gas from 1978.

These quantities are shown as chemical industry con-

sumption. Inputs to public combined heat and power

generation begin in 1995.

Naphtha: From 2007, data include aromatics,

naphtha and other light oils.

Motor gasoline:

Data include “other light oils” until

2007.

Petroleum coke, other products: Petroleum coke is

included with “other products” for all years except

1960 to 1967, 1978 to 1982 and 2005.

New Zealand

Consumption data for 1960 to 1973 have been esti-

mated by the Secretariat

Other hydrocarbons:

Other hydrocarbons represent

synthetic gasoline production from natural gas. In

February 1997 the production of synthetic gasoline

ceased.

Gas/diesel oil, fuel oil: The light fuel oil is included

in residual fuel oil until 1997. As of 1998, the light

fuel oil is included in gas/diesel oil.

Paraffin waxes: From 2000 onwards, paraffin waxes

are included with lubricants.

Norway

Due to the availability of more detailed information,

the Norwegian Administration has revised the report-

ing of chemical and petrochemical energy and non-

energy use beginning with 1993 and 2003

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OIL INFORMATION (2011 Edition) - I.23

The Norwegian Administration revised stock levels

for crude oil and some oil products. It entails breaks in

stocks between 1999 and 2000.

Additives/Oxygenates: in the 2011 edition, the Nor-

wegian Administration has reported data for additives

and oxygenates from 2001 onwards.

Refinery feedstocks: Since 1986, imports of refinery

feedstocks are reported under the relevant oil product

imports.

LPG, ethane: LPG includes ethane prior to 1990.

Lubricants: Consumption of lubricants is reported

in the industry, as no further breakdown is available.

Beginning in 1991, motor gasoline, gas/diesel and fuel

oil end-use consumption data has been revised based

on new information.

Gas/diesel oil: Quantities of gas/diesel oil for elec-

tricity generation from 1970 to 1975 have been esti-

mated by the Secretariat. Starting in 1990, the Norwe-

gian administration has revised the reporting of input

of gas/diesel oil for autoproduced electricity on oil

and gas platforms, giving rise to a break in series be-

tween 1989 and 1990. Data are now reported in the

energy industry own use.

Gas/diesel oil, fuel oil: The detailed consumption

breakdown is available from 1976.

Lubricants: For 1996, some lubricants are included

with Other Products.

Petroleum coke: There is a break in series in industry

between 2004 and 2005 according to the new infor-

mation. Refinery fuel has been reported since 2001.

From 2002 onwards, NGL exports have been reclassi-

fied as LPG exports.

Poland

The stock levels are available as of 1988.

Other hydrocarbons: From 1997, a hydrocracking

complex produces hydrogen from natural gas. These

amounts are reported under other sources.

Gas/diesel oil, fuel oil: Prior to 1998, inputs of gas/

diesel oil and heavy fuel oil to autoproducer CHP in

petroleum refineries have been included in the trans-

formation.

Petroleum coke: Supply data are available from

2003.

Portugal

Gas/diesel oil: Consumption in industry and com-

mercial/public services represents diesel use in the

mobile fleets.

Fuel oil: Feedstocks use of fuel oil in the chemical

industry beginning in 1984 reflects the opening of a

new ammonia plant which uses fuel oil as raw material.

The consumption breakdown for lubricants, bitumen,

white spirit/SBP and paraffin waxes has been esti-

mated by the Secretariat in 1986.

In the 2011 edition, the Portuguese Administration

has revised the international/domestic breakdown for

aviation and shipping from 2007 onwards.

Slovak Republic

Data are available starting in 1971.

Refinery Gas: Between 2008 and 2009, a company

that operates in the transformation sector changed its

status from autoproducer to main activity producer.

Naphtha: Data are not available and therefore not

included in total products before 1989.

Kerosene type jet fuel: Data include small amounts

of other kerosene from 2001 onwards. International

Civil Aviation includes Domestic use since 2001.

Gas/diesel oil: Road data includes Rail use.

Fuel oil: Fuel oil includes both light and heavy fuel

oil.

White spirit: Energy Use is not available.

Data from 1993 were revised by the Slovak Admini-

stration in 2002. There are several breaks between

1992 and 1993 and between 2000 and 2001 due to

differences in methodology.

As a result of a new survey more detailed information

is available starting in 2001.

Slovenia

Data for Slovenia are available starting in 1990. Prior

to that, they are included in Non-OECD data in For-

mer Yugoslavia. A new energy data collection system

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was implemented in January 2001, causing some

breaks in time series between 1999 and 2000.

Spain

Detailed consumption data prior to 1981 are partly

estimated on the basis of national statistics covering

consumption on the Spanish mainland.

Refinery feedstocks: Data are not available in 1981.

LPG, fuel oil: Consumption specifications are less

detailed prior to 1973.

Gas/diesel oil, fuel oil: A reclassification of the

"other" between 1976 and 1977 has resulted in a

break in series for gas/diesel oil and fuel oil.

Petroleum coke: From 1982 onwards, there are more

detailed consumption data available for petroleum

coke.

Backflows have been estimated by the Secretariat for

1996.

A change in the reporting system in mid-1996 has

resulted in some breaks in series between 1996 and

1997.

Sweden

Additives, refinery gas, ethane: Data are available

from 2000 for additives and ethane, and from 2003 for

refinery gas.

Other kerosene:

Consumption in the road sector is

discontinued in 1984 due to product re-classification.

Gas/diesel oil: There is a break in stocks between

1999 and 2000.

Fuel oil: Due to more detailed reporting, there are

breaks in consumption series between 1985 and 1986.

Swedish stock data include peacetime crisis stocks.

Since these stocks may be held in crude oil instead of

oil products, there may be occurrences of negative

stock levels for products.

Beginning in 1995, Sweden has changed its standard

classification of industry sub-sectors.

Beginning in 2002, Sweden has changed some of the

conversion factors for some products. That explains

the break in stocks between 2001 and 2002 as well as

small breaks in series.

Switzerland

Refinery feedstocks: The reduction in refinery intake

in 1988 is partly due to a switch to crude oil and

partly to a shutdown for maintenance of a refinery.

Naphtha: As of 1993, the refinery gross output fig-

ures are net of quantities used for blending into motor

gasoline.

Gas/diesel oil:

Non-specified industry (small manufac-

turers) consumption is estimated. The method of report-

ing has been revised from 1987 to 1993. The increase

in consumption in 1994 is due to consumer

stock-building prior to the introduction of a value-

added excise tax on heating fuels as of 1 January 1995.

Petroleum coke: Production started in 2004 due to the

installation of a cracking unit in a refinery.

Since 1 January 1996, the Swiss Administration re-

vised its stock reporting.

The break between 1998 and 1999 in the final con-

sumption of motor gasoline, gas/diesel oil and resid-

ual fuel oil is due to a new survey being introduced in

1999.

Turkey

Gas/diesel oil, fuel oil: The end-use classification of

gas/diesel oil and fuel oil were changed in the Turkish

national statistics between 1977 and 1978. Conse-

quently, breaks in detailed consumption series appear

between these two years.

As of 1978, the commercial sector is included with

industry, while public services are included with

transport. Part of non-metallic mineral products indus-

try consumption is included with non-ferrous metals

sector.

International marine bunkers are included in exports

for the years 1978, 1980, 1981, 1983 and 1984.

Gas/diesel oil and fuel oil consumed to produce elec-

tricity are used in both oil and coal-fired plants.

Bitumen: Bitumen consumed in the transformation is

intended for briquette production.

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OIL INFORMATION (2011 Edition) - I.25

United Kingdom

Crude oil, NGL: From 1980, NGL includes conden-

sates. For earlier years condensates are included with

crude oil.

NGL, refinery feedstocks: Stock levels and stock

changes are only reported separately from 1985. Prior

to that they were included with crude oil.

Other hydrocarbons: Until 1994, other sources rep-

resented bitumen produced from coal.

LPG, ethane: LPG includes ethane prior to 1990.

LPG, fuel oil: breaks in series for LPG, between

2000 and 2001, and for fuel oil, between 1999 and

2000, are due to the re-allocation of some data; and,

for fuel oil, because of the introduction of heat pro-

duction data as well.

Petroleum coke, other products: Imports and ex-

ports of "other products" include petroleum coke prior

to 1992. Prior to 1979, all petroleum coke data are

included with "other products".

Stock levels and stock changes in main activity pro-

ducer are included from 1985.

Prior to 1995, the product breakdown for returns is

estimated by the UK Administration. Beginning with

1995, the UK Administration revised their product

breakdown for returns and petrochemical reporting

methodology.

For 2002 to 2004 products transferred includes back-

flows and interproduct transfers. From 2005 onwards

backflows were estimated by the Administration.

In the 2010 edition, the split between international

civil aviation and domestic air transport has been re-

vised back to 1990 according to new research.

Beginning with 2009, the UK Administration revised

their product consumption data based on a new report-

ing methodology. UK Administration will revise the

historical data using the new methodology.

United States

Prior to 1995, a detailed breakdown of oil products

consumption in the industry is not available. How-

ever, data by industry are published for fuel oil for the

period 1971 to 1982.

Crude oil: High statistical differences for crude oil

represent "Unaccounted for crude oil", the difference

between the supply and disposition of crude oil.

Refinery gas: For 2002, autoproducer electricity out-

put for oil includes generation from refinery gases

with a low average calorific value. From 2002 on-

wards, the IEA Secretariat has estimated the amounts

of refinery gas used for autoproducer electricity pro-

duction.

LPG:

From 1995, inputs to gas works are included in

the industry.

LPG, ethane: LPG includes ethane and pentanes plus

prior to 1990.

LPG, NGL: Imports and exports of NGL are reported

as LPG trade prior to 1978. From 1992 onwards, the

individual components of NGL and LPG have been

converted using their respective conversion factor

rather than an average factor, resulting in a break in

series.

Naphtha: The reduction in naphtha use in the chemi-

cal industry beginning in 1978 is due to a reclassifica-

tion of the product.

Motor gasoline: Beginning in 1994, consumption in

the commerce/public services sector is based on a new

model from the Department of Transportation.

Gas/diesel oil: Gas/diesel oil consumption in agricul-

ture prior to 1980 is estimated by the Secretariat.

Fuel oil: International marine bunkers of fuel oil

show large increase in 1990 due to a change in the

data collection and reporting methodology in the US

administration. The consumption breakdown between

low and high sulphur fuel oil has been estimated.

Consumption breakdown for low and high sulphur

fuel oil is not available from 2002 onwards.

Gas/diesel oil, fuel oil, petroleum coke: The inputs

to autoproducers of electricity are available as of

1997. The inputs to CHP plants are available as of

1999. Before 1999, main activity producer CHP plants

were included in main activity producer electricity

plants; autoproducers of CHP were included in auto-

producers of electricity and in industry.

The change in the series for transfers in 1990 and

1993 is due to new reporting methods used by the US

Administration.

In 1993, the US administration made several adjust-

ments to its collection system for oil statistics in order

INTERNATIONAL ENERGY AGENCY