Milner. FRO is really targeting to acquire OSG, but must see first that it happens. As far as I know OSG has not said no or yes, but JF and OSG's CEO Morten Arntzen were seen in a "friendly discussion" at a Marine Conference last week...
It may also be the old trick: look how the price of OSG has surged after the buying offer was published (don't buy it now!). If OSG says no, FRO sells the shares with good profit.
OSG is mainly a tanker (oil/oil products) shipper, so as to GOGL in this context, I have no idea. Of course it could be possible. Mr. Billung, CEO of GOGL has stated that listing GOGL to a higher US bourse is too expensive. I guess that's why DOCK and DESSC are also only listed on grey pinksheets.