The conference called "South East Europe - Energy Bridge Between the Russian Federation, the Mediterranean, the Caspian and Middle East Areas and the European Union" will gather ministers and energy experts from 37 countries.
The forum will be opened by Croatia's Prime Minister Ivo Sanader and the European Energy Commissioner Andris Piebalgs.
Keynote speeches are to be held by European Commission Deputy Director-General of Energy and Transport, Fabrizio Barbaso, and the Director-General in the EU External Relations Directorate, Eneko Landaburu.
The event will be addressed also by managers of the world's leading energy companies and financial and scientific institutions.
About 400 participants are expected to discuss three topics: energy security in Europe, energy projects in SEECP member states and possibilities for investments in the energy sector.
During the conference, Croatia, Italy, Romania, Slovenia and Serbia are to sign a memorandum of understanding concerning the PEOP project providing oil supplies for the European market from the Caspian region by a pipeline going from the Black Sea port of Constanta to the Trans Alpine Line near Trieste.
This route would help decrease tanker transportation at the Adriatic.