I can recall in years past having my doubts about Brown and Zion, but I've never had my doubts about Israel being an oil rich nation (currently 13th from the bottom https://en.wikipedia.org/wiki/List_of_countries_by_proven_oil_reserves). I sold some of my ZN shares and bought shares of 2 other companies drilling in Israel over the years, GNE I still hold, and one that has gone out of business.
In 2015, after GNE got out of the Golan, I decided to check in on ZN, and listened to some comments from Brown via video. I noticed that he was not the same man I remembered. He seemed like a humble man, not the man that set out in the early 2000's wildcatting with his "vision".
ZN, and the man leading this company have grown and I believe are ready for what Brown says he was promised. Go back and listen to the original video of Brown's vision, and the most recent video. You will see the difference I am expressing. This might provide some perspective.