Hmm. What you think about investing to offshore drilling companies like Transocean or Smedvik? I started to invest in them about one year ago and so far I have got great returns. Do you think dayrates might go still much up and company earnings soar like during last two years?
Don't know about the specific companies you mention, but Rigzone has a table of dayrates you can kee an eye on (updates every day)
http://www.rigzone.com/data/dayrates/

and some historical utilization data
http://www.rigzone.com/data/utilization_region.asp

aren't the best rig companies to own Nabors (rent em to the Saudis) and National Oil Well Varco (build em)?