Woodside selects locations for Mauritania exploration drilling

June 23, 2005
Woodside Mauritania Pty Ltd., a wholly-owned subsidiary of Woodside Petroleum Ltd., has selected the first three exploration locations for its 2005 Mauritanian exploration drilling sequence.

Offshore staff

Woodside Mauritania Pty Ltd., a wholly-owned subsidiary of Woodside Petroleum Ltd., has selected the first three exploration locations for its 2005 Mauritanian exploration drilling sequence.

Two of the wells, Sotto and Colin, will target relatively high risk but potentially high reward prospects in PSC Area A. The third well, Espadon, is targeting a medium risk, moderate reward prospect close to the Tiof discovery in PSC Area B. It is planned to begin drilling these wells in late July 2005 using theStena Tay drill rig.
The locations of these three initial exploration wells and previous Woodside-interest wells and discoveries are shown on the map.

A further three wells are likely before the end of the year, including one in PSC Area C6. Subsequent announcements will be made concerning these wells.

TheWest Navigator drill ship continues working on Chinguetti development wells.

Participating interests in the Chinguetti Exploitation Perimeter and PSC areas in which activity is planned are outlined in the chart.

06/23/05