
1991 European Energy Charter
- signed on 17 December 1991
1994 Energy Charter Treaty
- signed on 17 December 1994
- ratified on 28 May 1996
- deposited on 19 September 1996
- entered into force on 16 April 1998
1994 Protocol on Energy Efficiency and Related Environmental Aspects
- signed on 17 December 1994
- ratified on 28 May 1996
- deposited on 19 September 1996
- entered into force on 16 April 1998
1998 Amendment to the Trade related provisions of the Energy Charter Treaty
- ratified on 3 November 1999
- deposited on 3 December 1999
- entered into force on 21 January 2010
2015 International Energy Charter
- signed on 20 May 2015