Drilling Commenced at Butlers Appraisal Well

Cooper reported that the Butlers-2 appraisal/development well in PEL92 spudded at Friday, April 8, 2011. The current operation is drilling the surface hole.

Butlers-2 is the first appraisal/development well on the Butlers Oil Field and the third well in the current drilling program and follows the recent successes at Parsons-3 and Parsons-4.

Butlers-2 is targeting the Namur oil reservoir and is to be located 0.95km to the northeast of the Butlers-1 discovery well. The well will be drilled to a total depth of about 1,360 meters and is expected to take 9 days to drill and complete.

The Butlers oil field is currently producing nearly 1,400 barrels of oil per day from the Butlers-1 discovery well in the Namur reservoir. It is expected that additional Butlers development wells will more efficiently develop the field and will accelerate production. The drilling will be accompanied by an upgrade of the Butlers surface facilities to handle the increased production. Oil production from Butlers is exported via the pipeline to Tantanna.