The IEA is made up of 28 member countries. Before becoming a Member country of the IEA, a candidate country must fulfill certain requirements...

Growing economic interdependence and increasingly global energy market and environmental issues make IEA relations with non-member countries, industry, international organisations and other stakeholders especially important...

To be a member country of the IEA, a country must be a member country of the OECD.  However, membership in the OECD does not automatically result in membership in the IEA.

Senior staff from the IEA participate in energy-related events all over the world, such as the Conference of the Parties to the United Nations Framework Convention on Climate Change (UNFCCC).

Growing economic interdependence and an increasingly global energy market make IEA relations with non-member countries, industry, international organisations and other stakeholders especially important.

Definitions in this glossary of energy-related terms reflect those used by the IEA; definitions used by other organisations and publications may vary.