Sterling Successfully Sidetracks Cladhan Discovery

Delineation activities on the Cladhan sidetrack well are completed, announced Sterling Resources. The sidetrack well was drilled to a total depth of 11,215 feet (3,418 meters), encountering a gross hydrocarbon column of 159 feet (48 meters) with 102 feet (31 meters) of net hydrocarbon bearing sandstones. The reservoir quality is excellent with average porosities of 21% and average oil saturations of 86%; and the two wells (discovery and sidetrack) have confirmed a total hydrocarbon column in excess of 273 feet (83 meters).

A drill stem test will now be performed. Sterling anticipates that results from the DST operations will confirm the commerciality of the Cladhan field.

The Cladhan field is located on Blocks 210/29a and 210/30a in the UK sector of the North Sea in a water depth of 1,634 feet (498 meters). Sterling Energy, holding a 39.9% interest, operates Cladhan; Wintershall holds 33.5%; Encore holds 16.6%; and Dyas holds the remaining 10% interest.

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