Tullow Oil Norge AS has received consent to drill exploration well 31/2-21 S in production licence 550 using the Borgland Dolphin mobile drilling facility.
The well is in the northern part of the North Sea, west of the Troll field. Water depth at the site is 348 metres.
Borgland Dolphin is a semi-submersible drilling rig of the Aker H-3 type. It was built at Harland & Wolff in Belfast, Northern Ireland in 1977 and underwent an extensive upgrade in 1999.
The facility is owned by Borgland Dolphin Pte Ltd and operated by Dolphin Drilling A/S.
It received Acknowledgement of Compliance in September 2004.