Gasex 2000 is an error. The conference is Gasex 2002. I went to their web site, but speakers listed are all from energy companies, mostly Asian, although one American from Shell Gas will be speaking. Clinton is not listed as a speaker. So, what's up with him being there?
Still digging...
My gut feeling was this is related to Marc Rich somehow, very odd to take off of a U.S. Trade delegation in a private jet for an oil conference.