tullows holding of hdr shares

Can somebody explain how these will be settled if the takeover comes to pass?

I know they have no voting rights. But are they null and void or can TLW say I will convert them to my own shares. If they can do this will this action happen before any of the remaining shares are converted. Thus reducing the 40% share offer slightly. Or does their conversion happen after all the other requests have been dealt with first.

What will the procedure be at the appropriate time?

regards