I think the news said up to 5 drill crews. At present they have 1 company drill and 1 contractor drill working 24/7. They need 2 crews per drill and 1 crew for turnaround. A 3rd drill with deeper capability will be employed to deliniate the size of Mud Lake when results become known, which will require 2 more drill crews. It is more economic and productive to drill 24/7 to avoid having to pull water lines and pumps, when not drilling. The private contractor also has a portable man drill.