Holding(s) in Company

28th Feb 2012 16:00

John Wood Group PLC ("Company")

NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Name of IssuerJOHN WOOD GROUP PLC2. Reason for NotificationACQUISITION OF VOTING RIGHTS

3. Full name of person(s) subject to notification obligation

BLACKROCK, INC

4. Full name of shareholder(s) (if different from 3 above)

N/A

5. Date of the transaction and date on which the threshold is crossed or reached

23 FEBRUARY 2012

6. Date on which issuer notified

27 FEBRUARY 2012

7. Threshold(s) that is/are crossed or reached

ABOVE 17%

8. Notified details

(A) Voting rights attached to shares

Number of voting rights - Direct - N/A

Number of voting rights - Indirect - 60,475,078 - 16.29%

(B) Financial Instruments

N/A

(C) Financial Instruments with similar economic effect to Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument - CFD

Exercise Price - N/A

Expiration date - N/A

Exercise/conversion period - N/A

Number of voting rights instrument refers to - 2,681,787

Percentage of voting rights - Nominal - 0.72% Delta - 0.72%

Total A + B + C

Number of voting rights - 63,156,865

Percentage of voting rights - 17.01%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable

BLACKROCK INVESTMENT MANAGEMENT (UK) LIMITED - 63,156,865 (17.01%)

PROXY VOTING10. Name of the proxy holderN/A

11. Number of voting rights proxy holder will cease to hold

N/A

12. Date on which proxy holder will cease to hold voting rights

N/A13. Additional InformationN/A14. Contact nameANDREW MANCHESTER15. Contact telephone number020 7743 5773Authorised by:

ROBBIE M B BROWN, COMPANY SECRETARY

28 FEBRUARY 2012

PINX

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Related Shares:

Wood Group (J)