The IEA is made up of 30 member countries. Before becoming a member country of the IEA, a candidate country must demonstrate that it has:
- crude oil and/or product reserves equivalent to 90 days of the previous year’s net imports, to which the government has immediate access (even if it does not own them directly) and could be used to address disruptions to global oil supply;
- a demand restraint programme to reduce national oil consumption by up to 10%;
- legislation and organisation to operate the Co-ordinated Emergency Response Measures (CERM) on a national basis;
- legislation and measures to ensure that all oil companies under its jurisdiction report information upon request;
- measures in place to ensure the capability of contributing its share of an IEA collective action. An IEA collective action would be initiated in response to a significant global oil supply disruption and would involve IEA Member Countries making additional volumes of crude and/or product available to the global market (either through increasing supply or reducing demand), with each country’s share based on national consumption as part of the IEA total oil consumption.
The Executive Director of the IEA has to make a finding to ascertain whether the potential member country can meet these requirements, during which the IEA Secretariat advises and works with the candidate country. The IEA Governing Board makes the final decision on the country membership.
A candidate country must be a member country of the OECD. However, membership in the OECD does not automatically result in membership in the IEA. As of 2018, Chile, Iceland, Israel, Latvia and Slovenia are OECD member countries but not part of the IEA; Chile is currently a candidate country for IEA membership and seven countries – Brazil, China, India, Indonesia, Morocco, Singapore, and Thailand are Association countries.
For the latest IEA review of a member country's energy policies, see the individual country's listing in the adjacent list. See also: World Energy Statistics 2017, World Energy Balances 2017, World Energy Statistics and Balances 2017 and Key World Energy Statistics.
The European Union also participates in the work of the IEA. See Energy Policies of IEA Countries: European Union – 2014. See also Europe's Energy Portal.
To read about IEA engagement with non-member countries, click here.