BHP Re-commences Drilling Operations on Jacala-1

ROC advises that the BHP Billiton-operated Jacala-1 wildcat exploration well in WA-351-P re-commenced drilling operations on April 10, 2006, following the second evacuation of personnel from the Atwood Eagle due to further cyclone activity.

As of April 11, 2006, the well had been drilled a further 530 meters to a depth of 1,670 meters below rotary table, in a water depth of 1,062 meters and the current operation is pulling out of hole at approximately 550 meters below rotary table in preparation for running 13-3/8 inch casing. The well is now expected to take about seven days to reach a total depth of 2,322 meters.

Jacala-1 is located approximately 200 km west of Barrow Island and 100 km northwest of the Enfield Oil and Gas Field.

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