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Origin Energy Weekly Drilling Report

Posted: 30 December 2004

Origin Energy provides the following update on conventional exploration, appraisal and development wells operated by the company and its subsidiaries.

Trefoil 1

Well type:

Tasmanian off-shore exploration permit, T/18P Bass Strait, approximately 37 km west of Yolla Production Platform, 114 km southwest of Wilson’s Promontory, and 59 km north-northeast of Three Hummock Island.

Final Co-ordinates of the Trefoil 1 drilling location:
Latitude: 39° 51’ 44.12” S
Longitude: 145° 22’ 30.73” E
Water Depth: 68.9 metres

Origin Energy Resources Limited* (Operator) 41.4%
AWE Petroleum Pty Ltd** 22.6%
CalEnergy Gas ( Australia) Limited 23.5%
Wandoo Petroleum Pty Ltd 12.5%

*a wholly owned subsidiary of Origin Energy Limited
**a wholly owned subsidiary of Australian Worldwide Exploration Limited

Progress and Status:
The rig was released from the Trefoil 1 location at 7.45am on 25 December 2004.

For more information see


Posted by Richard Price, Editor

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