TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: EnQuest PLC 2 Reason for the notification (please tick the appropriate box or boxes): An acquisition or disposal of voting rights X An acquisition or disposal of qualifying financial instruments which may result in the acquisition of shares already issued to which voting rights are attached An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments An event changing the breakdown of voting rights Other (please specify): 3. Full name of person(s) subject to the notification obligation: Legis Trust Limited as Trustee of the Nola Trust of which Mr Maroun Semaan is a potential beneficiary. 4. Full name of shareholder(s) (if different from 3.): N/A 5. Date of the transaction and date on which the threshold is crossed or reached: 7 March 2011 6. Date on which issuer notified: 7 March 2011 7. Threshold(s) that is/are crossed or reached: 3% 8. Notified details: A: Voting rights attached to shares Class/type of Situation previous Resulting situation after the triggering transaction shares to the triggering if possible using transaction the ISIN CODE Number Number Number Number of voting % of voting rights of of of shares rights Shares Voting Rights Direct Direct Indirect Direct Indirect Ordinary 30,068,799 30,068,799 20,068,799 20,068,799 Nil 2.51 Nil GB00B635TG28 B: Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration Exercise/ Number of voting % of voting instrument date Conversion rights that may be rights Period acquired if the instrument is exercised/ converted. C: Financial Instruments with similar economic effect to Qualifying Financial Instruments Resulting situation after the triggering transaction Type of financial Exercise Expiration Exercise/ Number of voting % of voting rights instrument price date Conversion rights instrument period refers to Nominal Delta Total (A+B+C) Number of voting rights Percentage of voting rights 20,068,799 2.51 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: Proxy Voting: 10. Name of the proxy holder: N/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/A 13. Additional information: Notification is based on a total voting rights figure of 799,462,905. Maroun Semaan is a beneficiary of the Nola Trust. 14. Contact name: Paul WatersCompany Secretary 15. Contact telephone number: +44(0)20 7925 4900
TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES
| Source: EnQuest PLC