- OGEL 5 (2004)
OGEL 5 (2004) - Energy Charter Treaty
Dec 2004
- OGEL 4 (2004)
OGEL 4 (2004) - Corporate Social Responsibility (CSR)
Oct 2004
- OGEL 3 (2004)
OGEL 3 (2004) - Taxation / Latin America
Jul 2004
- OGEL 2 (2004)
OGEL 2 (2004) - Renewable Energy
Apr 2004
- OGEL 1 (2004)
OGEL 1 (2004) - Climate Change
Feb 2004