EnCore Oil says that the Cladhan appraisal well 210/30a-4 located in Northern North Sea Block 210/30a was spudded at 20.00 hours on Monday, February 28, 2011.

The objective of the appraisal well is to drill further down dip into the Cladhan structure, to the south east of the original 2008 discovery and subsequent 2010 side-track wells, to attempt to discover deeper oil in the structure.

The well is being drilled using the Transocean Prospect semi-submersible rig and is expected to take approximately 40 days, subject to weather and operational requirements.

The equity in Blocks 210/29a & 210/30a joint venture partnership is as follows: EnCore Oil plc (16.6 percent.), Sterling Resources Limited (39.9 percent., Operator), Wintershall (UK North Sea) Limited (33.5 percent.) and Dyas UK Limited (10 percent.).

Tags: EnCore Oil plc