Discv Vortex-1 Well in GOM

BHP Billiton Limited 05 December 2002 BHP Billiton Limited is issuing this announcement to fulfil disclosure obligations arising from its secondary listing on the London Stock Exchange. The text of this release is identical to that issued by BHP Billiton Plc earlier. 5 December 2002 Number 60/02 BHP Billiton Announces Hydrocarbon Discovery with Vortex-1 Well in Deepwater Gulf of Mexico BHP Billiton today announced that it has made a natural gas discovery at the exploratory well on its Vortex prospect in the deepwater Gulf of Mexico. Drilling on Vortex-1 began September 9, 2002, in Atwater Valley Block 261 in water depths of approximately 8,344 feet using the drillship Deepwater Millennium. In addition to the initial well, a sidetrack was drilled 2,900 feet west of the #1 well to a total depth of 19,330 feet. BHP Billiton holds a one-third interest and is operator of the Vortex prospect, with partners Kerr-McGee Corp. and Ocean Energy, Inc. each also holding a one-third interest. Further information can be found on our Internet site: http:// www.bhpbilliton.com Australia Andrew Nairn, Investor Relations Tel: +61 3 9609 3952 Mobile: +61 408 313 259 email: Andrew.W.Nairn@bhpbilliton.com Tracey Whitehead, Media Relations Tel: +61 3 9609 4202 Mobile: +61 419 404 978 email: Tracey.Whitehead@bhpbilliton.com United Kingdom Mark Lidiard, Investor & Media Relations Tel: +44 20 7747 3956 email: Mark.Lidiard@bhpbilliton.com South Africa Michael Campbell, Investor & Media Relations Tel: +27 11 376 3360 Mobile: +27 82 458 2587 email: Michael.J.Campbell@bhpbilliton.com United States Francis McAllister, Investor Relations Tel: +1 713 961 8625 Mobile: +1 713 480 3699 email: Francis.R.McAllister@bhpbilliton.com This information is provided by RNS The company news service from the London Stock Exchange
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