Production from Other Sources
Asia-Pacific Economic Cooperation (APEC)

European Commission - Eurostat
Production from other sources refers to both primary energy that has not been accounted for under production and secondary energy that has been accounted for in the production of another fuel. In the case of oil, this refers to supplies of additives, biofuels and other hydrocarbons, the production of which has already been covered in other fuel balances. In the case of gas this refers to supplies of fuel of which production is covered in other fuel energy balances, but which are blended with natural gas and consumed as a blend. More specific examples include:

- Under additives: benzol, alcohol and methanol produced from natural gas;

- Under refinery stocks: backflows from the petrochemical industry used as refinery feedstocks;

- Under “other hydrocarbons” (included with crude oil): liquids obtained from coal liquefaction and GTL plants;

- Under primary coal: recovered slurries, middlings, recuperated coal dust and other low-grade coal products that cannot be classified according to type of coal from which they are obtained;

- Under gas works gas: natural; gas, refinery gas, and LPG, that are treated or mixed in gas works (i.e. gas works gas produced from sources other than coal).

International Energy Agency (IEA)
Production from other sources refers to both primary energy that has not been accounted for under production and secondary energy that has been accounted for in the production of another fuel. In the case of oil, this refers to supplies of additives, biofuels and other hydrocarbons, the production of which has already been covered in other fuel balances. In the case of gas this refers to supplies of fuel of which production is covered in other fuel energy balances, but which are blended with natural gas and consumed as a blend. More specific examples include:

- Under additives: benzol, alcohol and methanol produced from natural gas;

- Under refinery stocks: backflows from the petrochemical industry used as refinery feedstocks;

- Under “other hydrocarbons” (included with crude oil): liquids obtained from coal liquefaction and GTL plants;

- Under primary coal: recovered slurries, middlings, recuperated coal dust and other low-grade coal products that cannot be classified according to type of coal from which they are obtained;

- Under gas works gas: natural; gas, refinery gas, and LPG, that are treated or mixed in gas works (i.e. gas works gas produced from sources other than coal).

United Nations Economic Commission for Europe (UNECE)
Production from other sources refers to both primary energy that has not been accounted for under production and secondary energy that has been accounted for in the production of another fuel. In the case of oil, this refers to supplies of additives, biofuels and other hydrocarbons, the production of which has already been covered in other fuel balances. In the case of gas this refers to supplies of fuel of which production is covered in other fuel energy balances, but which are blended with natural gas and consumed as a blend. More specific examples include:

- Under additives: benzol, alcohol and methanol produced from natural gas;

- Under refinery stocks: backflows from the petrochemical industry used as refinery feedstocks;

- Under “other hydrocarbons” (included with crude oil): liquids obtained from coal liquefaction and GTL plants;

- Under primary coal: recovered slurries, middlings, recuperated coal dust and other low-grade coal products that cannot be classified according to type of coal from which they are obtained;

- Under gas works gas: natural; gas, refinery gas, and LPG, that are treated or mixed in gas works (i.e. gas works gas produced from sources other than coal).