GENERAL Name: Borgsten Dolphin Flag: Singapore Manager: Dolphin Drilling Ltd. Year Built: 1975 Builder: Aker Group; Nylands Mekaniske Verksted, Norway; Upgraded 1985 Design: Enhanced Aker H3, Self Propelled Semi-Submersible Classification: DNV + 1A1, Column Stabilised Drilling Unit OPERATING PARAMETERS Water Depth: 1500 ft (457,2 m) Maximum Drilling Depth: 20,000 ft (6097 m) Transit Speed: Approx. 4,5 knots