British Energy Group(BGY)

State Street Global Advisors
09 May 2008


FORM 8.3
DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
(Rule 8.3 of the City Code on Takeovers & Mergers)

1. KEY INFORMATION

Name of Person              State Street
   Dealing (Note 1)           Global Advisors & Affiliates
Company Dealt In            British Energy PLC
Class of Relevant Security  Ord
   to Which the Dealings
   Being Disclosed
   Relate (Note 2)
Date of Dealing             08/05/2008


2. INTERESTS, SHORT POSITIONS & RIGHTS TO SUBSCRIBE

Variance of 148,418 due to Transfer Receive

(a) Interests & Short Positions (following dealing) in
   the Class of Relevant Security Dealt In (Note 3)

Class of Relevant Security: Long                      Short
                            Number       %            Number       %
(1) Relevant Securities     27848748     2.69599
(2) Derivatives             0            0.00000      0            0.00000
    other than options
(3) Options &
    Agreements to
    Purchase/Sell
Total                       27848748     2.69599      0            0.00000


(b) Interests & Short Positions in Relevant Securities of the Company
   (ex.Class Dealt In) (Note 3)


Class of Relevant Security: Long                      Short
                            Number       %            Number       %
(1) Relevant Securities
(2) Derivatives
    other than options
(3) Options &
    Agreements to
    Purchase/Sell
Total


(c) Rights to Subscribe (Note 3)

Class of Relevant Security: Details




3. DEALINGS (Note 4)

(a) Purchases & Sales

Purchase /                  Number of    Price
Sale                        Securities   per Unit
BUY                         15256        7.15
BUY                         756          7.15
SELL                        14616        7.18
SELL                        5859         7.16
SELL                        66654        7.15


(b) Derivatives Transactions (other than options)

Product Name (e.g. CFD)     Long/Short   No./Securites   Price/Unit
                            (Note 6)     (Note 7)        (Note 5)



(c) Options Transactions in Respect of Existing Securities
   (i) Writing, Selling, Purchasing or Varying

Product Name                Write,Sell   No/Securities   Exercise  Type
(eg call option)            Purchasing,  Which the       Price     (e.g. USA,
                            Varying etc. Optn Relates              European etc)
                                         Relates-Note7



Expiry Date                 Option Money
                            Paid/Received
                            per Unit
                            (Note 5)



    (ii) Exercising

Product Name                Number of    Exercise
(eg call option)            Securities   Price per
                                         Unit (Note 5)



(d) Other Dealings (including new securities) (Note 4)

Nature of Transaction       Details      Price / Unit
(Note 8)                                 if applicable
                                         (Note 5)



4. OTHER INFORMATION

(a)Agreements, Arrangements or Understandings Relating to Options or Derivatives
Full details of any agreement, arrangement or understanding between the person
disclosing & any other person relating to the voting rights of any relevant
securities under any option referred to on this form or relating to the voting
rights or future acquisition or disposal of any relevant securities to which
any derivative referred to on this form is referenced.
If none, this should be stated.



Is a Supplemental Form 8 Attached? (Note 9)                            NO

Disclosure Date             09/05/2008
Contact Name                Harshil Naik
Telephone Number            020 7698 6213
If Connected EFM            N/A
   Name of Offeree/Offeror
   With Which Connected
If Connected EFM            N/A
   State Nature of
   Connection (Note 10)


Notes:
The Notes on Form 8.3 can be viewed on the
Takeover Panel's website at www.thetakeoverpanel.org.uk
FORM 8.3
DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
(Rule 8.3 of the City Code on Takeovers & Mergers)

1. KEY INFORMATION

Name of Person              State Street
   Dealing (Note 1)           Global Advisors & Affiliates
Company Dealt In            BHP Billiton PLC
Class of Relevant Security  Ord
   to Which the Dealings
   Being Disclosed
   Relate (Note 2)
Date of Dealing             08/05/2008


2. INTERESTS, SHORT POSITIONS & RIGHTS TO SUBSCRIBE

Variance of 235,552 due to Transfer Receive

(a) Interests & Short Positions (following dealing) in
   the Class of Relevant Security Dealt In (Note 3)

Class of Relevant Security: Long                      Short
                            Number       %            Number       %
(1) Relevant Securities     66348281     2.97190
(2) Derivatives             21842        0.00098      0            0.00000
    other than options
(3) Options &
    Agreements to
    Purchase/Sell
Total                       66370123     2.97288      0            0.00000


(b) Interests & Short Positions in Relevant Securities of the Company
   (ex.Class Dealt In) (Note 3)


Class of Relevant Security: Long                      Short
                            Number       %            Number       %
(1) Relevant Securities
(2) Derivatives
    other than options
(3) Options &
    Agreements to
    Purchase/Sell
Total


(c) Rights to Subscribe (Note 3)

Class of Relevant Security: Details




3. DEALINGS (Note 4)

(a) Purchases & Sales

Purchase /                  Number of    Price
Sale                        Securities   per Unit
BUY                         17927        19.97
BUY                         17413        19.97
BUY                         1971         19.97
BUY                         1624         19.97
BUY                         19627        19.97
SELL                        38730        19.78


(b) Derivatives Transactions (other than options)

Product Name (e.g. CFD)     Long/Short   No./Securites   Price/Unit
                            (Note 6)     (Note 7)        (Note 5)



(c) Options Transactions in Respect of Existing Securities
   (i) Writing, Selling, Purchasing or Varying

Product Name                Write,Sell   No/Securities   Exercise  Type
(eg call option)            Purchasing,  Which the       Price     (e.g. USA,
                            Varying etc. Optn Relates              European etc)
                                         Relates-Note7



Expiry Date                 Option Money
                            Paid/Received
                            per Unit
                            (Note 5)



    (ii) Exercising

Product Name                Number of    Exercise
(eg call option)            Securities   Price per
                                         Unit (Note 5)



(d) Other Dealings (including new securities) (Note 4)

Nature of Transaction       Details      Price / Unit
(Note 8)                                 if applicable
                                         (Note 5)



4. OTHER INFORMATION

(a)Agreements, Arrangements or Understandings Relating to Options or Derivatives
Full details of any agreement, arrangement or understanding between the person
disclosing & any other person relating to the voting rights of any relevant
securities under any option referred to on this form or relating to the voting
rights or future acquisition or disposal of any relevant securities to which
any derivative referred to on this form is referenced.
If none, this should be stated.



Is a Supplemental Form 8 Attached? (Note 9)                            NO

Disclosure Date             09/05/2008
Contact Name                Harshil Naik
Telephone Number            020 7698 6213
If Connected EFM            N/A
   Name of Offeree/Offeror
   With Which Connected
If Connected EFM            N/A
   State Nature of
   Connection (Note 10)


Notes:
The Notes on Form 8.3 can be viewed on the
Takeover Panel's website at www.thetakeoverpanel.org.uk


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