1991 European Energy Charter

• signed on 5 February 1993

1994 Energy Charter Treaty

• signed on 8 June 1995 
• ratified on 29 March 1996
• deposited on 17 June 1996
• entered into force on 16 April 1998

1994 Protocol on Energy Efficiency and Related Environmental Aspects

• signed on 8 June 1995 
• ratified on 29 April 1996
• deposited on 28 May 1996
• entered into force on 16 April 1998

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

• ratified on 13 July 2001
• deposited on 1 May 2004
• entered into force on 21 January 2010

2015 International Energy Charter

• signed on 20 May 2015