Holding in Company

Sterling Energy PLC 28 November 2007 TR-1: Notifications of Major Interests in Shares 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: Sterling Energy plc 2. Reason for notification (yes/no) An acquisition or disposal of voting rights An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached An event changing the breakdown of voting rights Other (please specify): Increase in share capital - Placing: Yes 3. Full name of person(s) subject to notification obligation: INVESCO plc 4. Full name of shareholder(s) (if different from 3): 5. Date of transaction (and date on which the threshold is crossed or reached if different): 20 November 2007 6. Date on which issuer notified: 25 November 2007 7. Threshold(s) that is/are crossed or reached: 29% to 28% 8: Notified Details A: Voting rights attached to shares Class/ Situation previous to the Resulting situation after the triggering type triggering transaction transaction of shares if possible use ISIN Number of Number of Number of Number of voting Number of shares voting shares rights voting rights rights Direct Indirect Direct Indirect 407,242,907 407,242,907 475,906,325 475,906,325 28.83% GB0005299929 B: Financial Instruments Resulting situation after the triggering transaction Type of Expiration Exercise/ No. of voting rights that may Percentage financial date conversion be acquired (if the instrument of voting instrument period/date exercised/converted) rights Total (A+B) Number of voting rights Percentage of voting rights 475,906,325 28.83% 9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectively held, if applicable: Bank of Ireland - 4,138,800 Bank of New York - 1,571,062 Bank of New York (Brussels) - 815,771 Chase Bank - 2,397,884 JP Morgan Chase - 32,185,678 Vidacos Nominees - 425,892,481 HSBC - 6,517,394 Japan Trustee Services Bank - 42,086 State Street Trust & Banking (London) - 2,257,925 Trust & Custody Servs JP - 87,244 Proxy Voting: 10. Name of proxy holder: 11. Number of voting rights proxy holder will cease to hold: 12. Date on which proxy holder will cease to hold voting rights: 13. Additional information: 14 Contact name: Rosalind McDonald 15. Contact telephone name: 01491 417 404 For notes on how to complete form TR-1 please see the FSA website. This information is provided by RNS The company news service from the London Stock Exchange

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