Does anyone have information where and how many refineries are able to
produce 100LL. Is it a problem of logistics? It is hard to imagine that all
refineries all over the world are producing cargas and all the other
derivates beside avgas on a 100% capcity!

Heard once time ago that there should only be 4 refineries which are
producing avgas. Think there was a shortage in Southafrica then. Any
thoughts why?

Harald