Oil Discv at Puma Well

BHP Billiton Limited 13 January 2004 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. Date: 13 January 2004 Number: 01/04 BHP BILLITON ANNOUNCES OIL DISCOVERY AT PUMA WELL IN DEEPWATER GULF OF MEXICO BHP Billiton today announced that it had completed drilling the Puma-1 exploration in the deepwater Gulf of Mexico. The well encountered approximately 500 feet of net oil pay in Miocene sandstones, and two subsequent sidetrack bores also encountered oil in reservoir intervals of a similar age. Steve Bell, President, Exploration and Business Development said today: 'The drilling result is encouraging, however, the well was drilled in a structurally complex subsurface area and in a zone where seismic imaging data is of only moderate quality. Further seismic reprocessing and appraisal drilling will be necessary to evaluate the size and significance of the discovery'. Drilling on Puma-1 began on August 14 2003 on Block GC 823 in the Western Atwater Foldbelt using the BP-operated Ocean Confidence drillship. The well is located 140 miles from the Louisiana coast and eight miles from the company's Mad Dog development. The well was drilled to a total measured depth of 19,034 feet in a water depth of 4130 feet. Technical data was taken from the straight hole and sidetrack bores. BHP Billiton has a 33.34% interest in Puma with BP (operator) 51.66% and Unocal 15%. Further information on BHP Billiton can be found on our Internet site: http://www.bhpbilliton.com Australia United Kingdom Andrew Nairn, Investor Relations Tel: +61 3 9609 3952 Mobile: +61 408 313 259 Mark Lidiard, Investor & Media Relations email: Andrew.W.Nairn@bhpbilliton.com Tel: +44 20 7802 4156 email: Mark.Lidiard@bhpbilliton.com Tania Price, Media Relations Tel: +61 3 9609 3815 Mobile: +61 419 152 780 email: Tania.Price@bhpbilliton.com United States Francis McAllister, Investor Relations South Africa Tel: +1 713 961 8625 Mobile: +1 713 480 3699 Michael Campbell, Investor & Media Relations email: Francis.R.McAllister@bhpbilliton.com Tel: +27 11 376 3360 Mobile: +27 82 458 2587 email: Michael.J.Campbell@bhpbilliton.com BHP Billiton Limited ABN 49 004 028 077 BHP Billiton Plc Registration number 3196209 Registered in Australia Registered in England and Wales Registered Office: Level 27, 180 Lonsdale Street Melbourne Registered Office: Neathouse Place London SW1V 1BH United Victoria 3000 Kingdom Telephone +61 1300 554 757 Facsimile +61 3 9609 3015 Telephone +44 20 7802 4000 Facsimile +44 20 7802 4111 The BHP Billiton Group is headquartered in Australia This information is provided by RNS The company news service from the London Stock Exchange
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