geology/.....just go to the geological survey by the namibian govornment it will show you the precambrian age of the play .... you always want to be in peleozoic , mesozoic and centozoic .....ages ....94 % of the wolds discveries are in this age groug ....look up where and how oil deposits form .....the only reason the promoters keep saying the word permian is to suck you into thinking it is like tyhe permian basin in texas .....lol ....