BHP - BHP Billiton plc - BHP Billiton quarterly re25 Jan 2007
BIL
 BIBLT                                                                           
BHP - BHP Billiton plc - BHP Billiton quarterly report on exploration and       
                        Development activities quarter ended 31 December 2006   
Share codeZ:        BIL                                                         
ISIN:               GB0000566504                                                
This report covers the company`s exploration and development activities for the 
quarter ended 31 December 2006.  Unless otherwise stated, BHP Billiton`s        
interest in the projects referred to in this report is 100 per cent and         
references to project schedules are based on calendar years.                    
DEVELOPMENT                                                                     
While the majority of BHP Billiton`s projects remain broadly on schedule, tight 
labour markets and shortages of equipment and supplies continue to be evident   
across the resources industry globally and will continue to impact project costs
and schedules.                                                                  
The Spence (Chile) copper project was commissioned during the quarter and       
achieved first production in early December three weeks ahead of schedule.  The 
budget is subject to finalisation but is expected to be within the approved     
budget (excluding FX impacts).                                                  
In addition, the Board approved the increased capital costs for the Ravensthorpe
(Australia) nickel project to a total budget of US$2.2 billion. Lower than      
expected labour productivity and late delivery of some materials and equipment  
at Ravensthorpe means that the target date for first metal from Ravensthorpe is 
now the first quarter of calendar year 2008.                                    
PROJECT AND     SHARE OF   INITIAL     PRODUCTION QUARTERLY PROGRESS            
OWNERSHIP       APPROVED   PRODUCTION  CAPACITY                                 
               CAPEX      TARGET      (100%)                                    
               US$M       DATE                                                  
                                                                                
Minerals                                                                        
Projects                                                                        
Alumar -        725        Q2 CY09     2 million  Forecast costs have           
Refinery                               tpa        increased by 40%              
Expansion                                         following BHP Billiton`s      
(Brazil)                                          review of the capital         
36%                                               cost estimate and the         
Alumina                                           inclusion of additional       
contingencies.  Cost           
                                                 pressures are due to           
                                                 increases in                   
                                                 construction, electrical,      
instrumentation and            
                                                 labour costs and general       
                                                 overheads.  As a result        
                                                 the project schedule is        
experiencing delays and        
                                                 we expect commissioning        
                                                 to occur in the second         
                                                 quarter of CY09.               
Spence (Chile)  990        Q4 CY06     200,000    Completed three weeks         
100%                                   tpa copper ahead of schedule.            
Copper                                 cathode    Budget is subject to          
                                                 finalisation but is            
expected to be within the      
                                                 approved budget                
                                                 (excluding FX impacts).        
Western         1,300      Q4 CY07     20 million On schedule and budget.       
Australia Iron                         tpa        Engineering and               
Ore                                               procurement activities        
(Australia) -                                     were essentially              
RGP3                                              completed during the          
85%                                               quarter with construction     
Iron Ore                                          activities now 35%            
                                                 complete.                      
Samarco Third   590        1H CY08     7.6        On schedule and budget.       
Pellet Plant                           million    First steel was erected       
(Brazil)                               tpa        at the Pellet Plant at        
50%                                               Ubu and 50% of the pipe       
Iron Ore                                          for the pipeline has been     
installed. Overall the         
                                                 project is 49% complete.       
Koala           200        End CY07    3,300      On schedule and budget.       
Underground                            tonnes per Procurement is well           
(Canada)                               day ore    advanced and engineering      
80%                                    processed  is nearly complete.           
Diamonds                                                                        
Ravensthorpe    2,200      Q1 CY08     Up to      On revised schedule and       
(Australia)                            50,000 tpa budget.  Construction is      
100%                                   contained  approximately 78%             
Nickel                                 nickel in  complete with engineering     
                                      concentrat and procurement                
e          activities finalised           
                                                 during the quarter.            
Yabulu          556        Q1 CY08     45,000 tpa On schedule however the       
(Australia)                            nickel     budget has been revised.      
100%                                              Expansion was essentially     
Nickel                                            mechanically complete at      
                                                 the end of December 2006.      
                                                                                
Petroleum                                                                       
Projects                                                                        
Atlantis South  1,500      Under       200,000    Cost and schedule remain      
(US)                       review,     barrels of under review but we           
44%                        forecast    oil and    estimate a capital cost       
Oil/Gas                    2H CY07     180        of approximately US$1.5       
                                      million    billion to plateau             
                                      cubic feet production from 11 wells       
of gas per compared to the previous       
                                      day        estimate of approximately      
                                                 US$1 billion, a 50%            
                                                 increase. Development          
costs from plateau             
                                                 production for the full        
                                                 life of the field remain       
                                                 subject to finalisation.       
Six development wells          
                                                 have been drilled with         
                                                 five being completed at        
                                                 the end of December.  The      
Balder installation            
                                                 vessel is undergoing           
                                                 repair as publicly             
                                                 reported by Heerema.           
North West      300        Late CY08   LNG        On schedule and revised       
Shelf Train 5                          processing budget as advised by the      
(Australia)                            capacity   Operator. Preassembled        
16.67%                                 of 4.2     units from the                
LNG                                    million    construction site in          
                                      tpa        Indonesia have begun           
                                                 arriving on site. The          
                                                 major mechanical erection      
contractor is on site and      
                                                 has begun work.                
Neptune (US)    300        End CY07    50,000     On schedule however the       
35%                                    barrels of project is experiencing       
Oil/Gas                                oil and 50 some cost pressure.           
                                      million    Drilling was completed         
                                      cubic feet for the first two of the       
                                      gas per    seven development wells.       
day                                       
Stybarrow       300        Q1 CY08     80,000     On schedule however the       
(Australia)                            barrels of project is experiencing       
50%                                    oil per    some cost pressure.  Two      
Oil/Gas                                day        injection wells were          
                                                 successfully completed         
                                                 and three development          
                                                 wells have been drilled.       
The FPSO has completed         
                                                 sea trials.                    
North West      200        End CY08    800        On budget and schedule.       
Shelf Angel                            million    Fabrication of topsides       
(Australia)                            cubic feet and the jacket are            
16.67%                                 gas per    progressing to plan.  All     
Oil/Gas                                day        major contracts have now      
                                                 been let.                      
Shenzi (US)     1,940      Mid CY09    100,000    On budget and schedule.       
44%                                    barrels of Drilling of the first         
Oil/Gas                                oil and 50 development well was          
                                      million    completed and fabrication      
cubic feet of the topsides and hull       
                                      gas per    continued.                     
                                      day                                       
MINERALS EXPLORATION                                                            
BHP Billiton continued to pursue global exploration opportunities for key       
commodities of interest utilising both in-house capabilities and the Junior     
Alliance Programme.                                                             
Grassroots exploration continued on diamond targets in Angola, Canada and the   
Democratic Republic of Congo (DRC), on copper targets in Mexico, Chile, Mongolia
and the DRC; and on nickel targets in Australia, Russia and Africa.  Exploration
for iron ore, coal, potash and bauxite was undertaken in a number of regions    
including Australia, Brazil, Canada and West Africa.                            
For the half year ended 31 December 2006, BHP Billiton spent US$153 million on  
minerals exploration, of which US$111 million was expensed. Capitalised         
exploration included US$41 million for the Olympic Dam Expansion.               
PETROLEUM EXPLORATION                                                           
Exploration and appraisal wells drilled during the quarter or in the process of 
drilling as at 31 December 2006.                                                
WELL            LOCATION          BHP BILLITON EQUITY STATUS                    
Persephone-1    Dampier sub-      16.67% BHP          Hydrocarbons              
basin Western     Billiton; Woodside  encountered. More          
               Australia         operator            appraisal required.        
               WA-1-L                                Plugged and                
                                                     Abandoned.                 

Shenzi-6        Gulf of Mexico,   44% BHP Billiton    Drilling ahead.           
               Green Canyon      and operator                                   
               Block 609                                                        
Ruby-1          Trinidad and      25.5% BHP Billiton  Temporarily               
               Tobago, Block 3   and operator        abandoned.                 
               (a)                                   Encountered                
                                                     approximately 1,200        
feet TVD (gross) of        
                                                     hydrocarbon-bearing        
                                                     sands with more than       
                                                     800 TVD feet of net        
pay.  The well tested      
                                                     at a rate of nearly        
                                                     5,000 barrels of oil       
                                                     per day through a          
7/8th-inch choke.          
                                                     See news release           
                                                     dated 2 November           
                                                     2006.                      
Ruby-2          Trinidad and      25.5% BHP Billiton  Drilling ahead.           
               Tobago, Block 3   and operator                                   
               (a)                                                              
Torosa-1        Browse Basin      8.33% BHP Billiton, Hydrocarbons              
Western           Woodside operator   encountered. More          
               Australia                             appraisal required.        
               WA-30-R                               Plugged and                
                                                     Abandoned.                 

Torosa-3        Browse Basin      8.33% BHP Billiton, Hydrocarbons              
               Western           Woodside operator   encountered. More          
               Australia                             appraisal required.        
WA-30-R                               Plugged and                
                                                     Abandoned.                 
                                                                                
Petroleum exploration expenditure for the half year ended 31 December 2006 was  
US$159 million.  The amount expensed was US$154 million including US$43 million 
of exploration expenditure previously capitalised.                              
25 January 2007                                                                 
Further information on BHP Billiton can be found on our Internet site:          
www.bhpbilliton.com                                                             
Australia                                                                       
Samantha Evans, Media Relations                                                 
Tel: +61 3 9609 2898  Mobile: +61 400 693 915                                   
email: Samantha.Evans@bhpbilliton.com                                           
Jane Belcher, Investor Relations                                                
Tel: +61 3 9609 3952  Mobile: +61 417 031 653                                   
email: Jane.H.Belcher@bhpbilliton.com                                           
United Kingdom                                                                  
Mark Lidiard, Investor & Media Relations                                        
Tel: +44 20 7802 4156  Mobile: +44 7769 934 942                                 
email: Mark.Lidiard@bhpbilliton.com                                             
Illtud Harri, Media Relations                                                   
Tel: +44 20 7802 4195  Mobile: +44 7920 237 246                                 
email: Illtud.Harri@bhpbilliton.com                                             
United States                                                                   
Tracey Whitehead, Investor & Media Relations                                    
Tel: US +1 713 599 6100 or UK +44 20 7802 4031                                  
Mobile: +44 7917 648 093                                                        
email: Tracey.Whitehead@bhpbilliton.com                                         
South Africa                                                                    
Ivan Arriagada, Investor Relations                                              
Tel: +44 20 7802 4183 Mobile: +44 7769 936 227                                  
email: Ivan.D.Arriagada@bhpbilliton.com                                         
Date: 25/01/2007 08:02:06 Produced by the JSE SENS Department.