KyOil, Zion may not have a choice ...
... NBL may not of had a choice either. Once the discovery is announced, in order to take full advantage of the field in a "timely" matter, Zion may have to be able to prove their ability to take advantage of the field in a "timely" matter or sell all or part of their license. They may be told to partner with other bigger names. One thing about the large gas discoveries, I do not believe that a single exploration company was in full ownership and control of their discovery. When you do some research, you find that there are three or four companies involved in the commercial realization of the discovery. I do believe that Gazprom (a Russian company) has also been engaged.
Israel's Energy Ministry may bring pressure to bear on the company. One thing is certain (and may explain why Zion has requested a new 3 year leased on their current lease), the leases surround the Megiddo Jezreel license will be hot areas of interest.