Exploration Drilling Advantages

1. A "whole fleet" of 2nd - 3rd generation rigs
   may be applicable for deepwater drilling
2. The existing BOP & riser may be used
   
   One Atlantis package may be shared between several rigs.
   
   May apply shallow water drilling procedures
   
   Reduces some deepwater safety challenges,
   i.e. well control, mud in riser and disconnect
   
   Same rig and procedures for all water depths
   
   Lower cost and more profit to all parties