Knott-1 Exploration Well Spudded Offshore Australia

Woodside, a participant in the BHP Billiton operated WA-255-P Joint Venture, reports that the Knott-1 exploration well located in the Exmouth Sub-basin was spudded on June 28, 2004, and is currently drilling ahead in 14-3/4 inch hole at a depth of 947 meters.

Atwood Oceanics' semisub, Atwood Eagle, is drilling the well. The well location is approximately 5 kilometers east of Skiddaw-1 and 8 kilometers east of Stybarrow-1. Water depth at the location is approximately 685 meters. Planned total depth is approximately 2,248 meters.

Equal joint venture participants in WA-255-P are BHP Billiton Petroleum (Australia) Pty. Ltd. and Woodside Energy Ltd.