announcement out, page-4

no significant hydrocarbons were encountered in th Mauritania Offshore Drilling Update
Woodside Mauritania Pty. Ltd., a wholly-owned subsidiary of Woodside Petroleum Ltd., reports the
following activity offshore Mauritania since the last report issued on 6 September 2005.
PSC Area B: Espadon-1A Exploration Well
The Espadon-1A well was drilled by the ‘Stena Tay’ drill rig to a final depth of 3,042 metres.
Wireline logs were then acquired for the well. Preliminary analysis of these logs and data acquired
while drilling indicate that no significant hydrocarbons were encountered in the well.
At midnight on 12 September 2005, preparations were underway to plug and abandon the well.
The ‘Stena Tay’ will then move to the Tevét-2 well location.
Chinguetti Development Wells
The 'West Navigator’ drillship continues to perform completion work on Chinguetti Development
wells. Woodside does not plan to issue regular announcements regarding operations on
Chinguetti development wells, but will do so if necessary to comply with its continuous disclosure
obligations under the ASX Listing Rules.
General
All reported drilling depths are referenced to the rig rotary table and all times are Universal Time
(UTC) (Mauritanian time)