Session 4: Oil statisticsSession 4: Oil statistics

United Nations Statistics Division

International Workshop on Energy Statistics

24-26 September 2012, Beijing, China

Total Total primary energy productionprimary energy production

Solids

Liquids

Gas

Electricity

0

50000

100000

150000

200000

250000

300000

350000

400000

450000

500000

1970

1972

1974

1976

1978

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

2006

2008

Terajoules

Shares of total Shares of total primary energy primary energy productionproduction

Solids

Liquids

Gas

Electricity

0%

20%

40%

60%

80%

100%

1970

1972

1974

1976

1978

1980

1982

1984

1986

1988

1990

1992

1994

1996

1998

2000

2002

2004

2006

2008

OutlineOutline

• Classification

• Measurement units

• Statistical units

• Data items

• Current UNSD Questionnaire

• Common problems

SIEC 4: OilSIEC 4: Oil

41 Conventional Crude Oil42 Natural Gas Liquids (NGL)43 Refinery feedstocks44 Additive and Oxygenates45 Other Hydrocarbons46 Oil Products

461 Refinery Gas462 Ethane463 Liquefied Petroleum Gases (LPG)464 Naphtha

465 Gasolines4651 Aviation Gasoline4652 Motor Gasoline4653 Gasoline-type jet fuel

466 Kerosenes4661 Kerosene-type Jet fuel4662 Other Kerosene

467 Gas Oil/Diesel Oil and Heavy Gas Oil4671 Gas Oil/Diesel Oil4672 Heavy Gas Oil

468 Fuel Oil

469 Other Oil Products

4691 White spirit and special boiling point industrial spirits

4692 Lubricants

4693 Paraffin waxes

4694 Petroleum coke

4695 Bitumen

4699 Other oil products n.e.c.

Measurement unitsMeasurement units

• Liquid fuels can be measured in Mass (e.g. Tons) and Volume units (e.g. Barrels)

• Conversion between Mass and Volume done through the specific gravity or density

• While IRES does not give recommendations for units to be used for national data collection, it recommends that Liquid fuels are disseminated in Metric Tons

IRES recommends that countries collect data in original units and data on specific calorific values

Measurement unitsMeasurement units

IRES recommends the use of net calorific values (NCV) when expressing the energy content of energy products rather than gross calorific values (GCV)

However, where available, countries are strongly encouraged to report both gross and net calorific values

IRES 4.36

Statistical unitsStatistical units

IRES recommends the use of establishments and households as statistical units for energy statistics

For example, for energy industries:

Oil and gas extraction (ISIC 06 – Extraction of crude petroleum and natural gas)

Oil refineries (ISIC 19 – Manufacture of coke and refined petroleum)

and others…

Data itemsData items

They reflect data collected from statistical units

UNSD Annual QuestionnaireUNSD Annual Questionnaire

UNSD Annual QuestionnaireUNSD Annual Questionnaire

Common problemsCommon problems

• Data on calorific values are often not reported

• Refinery input vs refinery output

• Refinery capacity often not reported

• International bunkers vs domestic transport

• Gross refinery output

• Input into electricity and heat generation versus electricity and heat produced

• Energy use vs non-energy use

Thank you!