It wouldn't surprise me that some low ball offers have already been made.  But perhaps not.  I don't know.  

I don't think collusion is a reasonable explanation.  If someone sees the potential value then they will take RVX and/or Zenith out period before some other BP does. 

And from our point of view, we want to see multiple bidders to create a bidding war for fear that desperation "wins" out in the end and we shareholders receive not much value in our investment over forever time.

My greatest concerns are the following:  

A.  There are no BP bidders for RVX.

B.  RVX wants way more than any BP will pay also meaning that maybe there are no bidders.  

C.  BP is underbidding thinking RVX is desperate.  

D.  BP doesn't believe in the science.

E.  BP has something better to offer the market soon enough.  

F.  RVX will continue to go it alone. 

Time will tell,

10BagR