BHP Billiton Plc - Announces Extension to Oil and10 Feb 2003
BHP Billiton Plc                                                                
Share Code:    BIL                                                              
ISIN:          GB0000566504                                                     
BHP BILLITON ANNOUNCES EXTENSION TO OIL AND GAS FIND IN DEEP WATER GOM;         
COMPLETES FUNDING ALLOCATION FOR ATLANTIS                                       
BHP Billiton announced today the results of appraisal well GC 743-5 (also       
referred to as Atlantis-6) and approved full funding for the development of the 
Atlantis field.                                                                 
Atlantis appraisal well encounters thick pay zones                              
The Atlantis-6 well confirms the presence of hydrocarbons in the previously     
unexplored northern part of the structure.  Additional drilling will be         
necessary to further appraise this portion of the field and assess the impact   
on overall reserves.  Before drilling of Atlantis-6, the company`s estimated    
gross proven and probable reserves at Atlantis were 635 million barrels of oil  
equivalent.                                                                     
Atlantis-6 is located on Green Canyon Block 743.  The well encountered          
hydrocarbons in several zones, including 605 feet (184 meters) of gross oil     
pay/460 feet (140 meters) of net oil pay and 360 feet (109 meters) of gross gas 
pay/200 feet (61 meters) of net gas pay.                                        
BHP Billiton has a 44 per cent working interest both in the Atlantis-6 well and 
the Atlantis field.  BP is the operator with a 56 per cent interest in the well 
and development project.  The BP-operated rig Deepwater Horizon drilled         
Atlantis-6 in water depths of 5,405 feet (1,643 meters) to a total depth of     
20,131 feet (6,137 meters).                                                     
President and CEO of BHP Billiton Petroleum Philip Aiken remarked:  "The very   
positive drilling results from our first well in the northern part of the field 
will lead us to upwardly revise our overall proven and probable reserves gross  
estimates of 635 million barrels of oil equivalent. This is another major       
success in our deepwater Gulf of Mexico petroleum strategy."                    
BHP Billiton commits US$1.1 billion for Atlantis development                    
BHP Billiton today also approved a total of US$1.1 billion (BHP Billiton share) 
for the development of the Atlantis oil and gas reserves in the Gulf of Mexico. 
This includes US$355 million the company approved in May 2002 to advance the    
project by funding detailed engineering and design work, purchasing of long-    
lead items, and awarding major contracts.                                       
This completes the investment commitment by BHP Billiton that will be necessary 
to bring Atlantis into production and recover the present estimate of 635       
million barrels of oil equivalent (mmboe) gross (BHP Billiton share: 244 mmboe, 
net after royalty payment).                                                     
The funds will cover the completion of project engineering, pre-drill and       
completion of the initial producing wells, and construction and installation of 
production facilities and subsea equipment.                                     
Mr Aiken further commented: "Development of the Atlantis field adds significant 
value to the company.  With the approval of the Mad Dog project last year and   
the equity we purchased in associated pipeline infrastructure for these two     
large developments, the company`s Gulf of Mexico assets are poised to make a    
substantial and long-term contribution to company earnings."                    
Based upon recently completed engineering, planning, and contracting studies,   
first oil is targeted for the third quarter of calendar 2006.  Production is    
expected to reach plateau levels at nameplate design capacity within the first  
six months of operation.  The field has an estimated production life of         
approximately 15 years.                                                         
Background on the Atlantis field                                                
The Atlantis development is located in the Atwater Foldbelt, approximately 125  
miles south of New Orleans in the vicinity of Green Canyon Block 743,           
comprising seven blocks in the area at water depths ranging from 4,400 to 7,100 
feet.  The field will be developed using a moored semi-submersible production   
facility with gross design capacity of around 150,000 barrels of oil per day    
and 180 million cubic feet per day of natural gas. The system design contains   
provisions for future capacity expansions.  The exploitation of any additional  
upside volumes would be the subject of future detailed engineering and cost     
estimates.                                                                      
Atlantis is believed to be the third largest oil and gas field yet discovered   
in the Gulf of Mexico and is one of the 50 largest hydrocarbon fields ever      
discovered among the more than 31,000 fields found to date in the United        
States.  The Atlantis field was discovered in June 1998 in 4,400 feet of water  
with the Atlantis-1 well drilled in Green Canyon Block 699. Further appraisal   
wells were drilled in 3Q 2000 (Atlantis 2 and sidetrack) and 3Q 2001 (Atlantis  
3 and sidetrack). The accumulation encompasses seven blocks in the southeast    
portion of the Green Canyon Protraction area.                                   
BHP Billiton is among the largest acreage holders in the deepwater Gulf of      
Mexico with approximately 270 leases concentrated primarily in the central Gulf 
region.                                                                         
***                                                                             
Further information on BHP Billiton 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                                           
United Kingdom                                                                  
Mark Lidiard, Investor & Media Relations                                        
Tel: +44 20 7802 4156  Mobile: +44 7769 934 942                                 
email: Mark.Lidiard@bhpbilliton.com                                             
Tracey Whitehead, Media Relations                                               
Tel: +61 3 9609 4202  Mobile: +61 419 404 978                                   
email: Tracey.Whitehead@bhpbilliton.com                                         
Ariane Gentil, Media Relations                                                  
Tel: +44 20 7802 4177                                                           
email: Ariane.Gentil@bhpbilliton.com                                            
United States                                                                   
Francis McAllister, Investor Relations                                          
Tel: +1 713 961 8625  Mobile: +1 713 480 3699                                   
email: Francis.R.McAllister@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                                       
Date: 10/02/2003 08:45:00 AM Produced by the JSE SENS Department