1991 European Energy Charter

• signed on 3 April 1996

1994 Energy Charter Treaty

• approved for accession by the Energy Charter Conference on 8 July 1997 (CCDEC199705)
• ratified on 26 March 1998
• deposited on 27 March 1998
• entered into force on 25 June 1998

1994 Protocol on Energy Efficiency and Related Environmental Aspects

• approved for accession by the Energy Charter Conference on 8 July 1997 (CCDEC199705)
• ratified on 20 August 1998
• deposited on 1 September 1998
• entered into force on 1 October 1998

1998 Amendment to the Trade related provisions of the Energy Charter Treaty

• Provisional Application

2015 International Energy Charter

• signed on 20 May 2015