3rd Mar 2008 11:56
Premier Oil PLC03 March 2008 Form TR-1 with annex. FSA Version 2.1 updated April 2007 For filings with the FSA include the annex For filings with issuer exclude the annex TR-1: Notifications of Major Interests in Shares 1. Identity of the issuer or the underlying issuer of Premier Oil plcexisting shares to which voting rights are attached: 2. Reason for notification (yes/no) Yes An acquisition or disposal of voting rights An acquisition or disposal of financial instruments which may result in the acquisitionof shares already issued to which voting rights are attached An event changing the breakdown of voting rights Other (please specify): 3. Full name of person(s) subject to notification Capital Group International, Inc.obligation: 4. Full name of shareholder(s) (if different from3): 5. Date of transaction (and date on which the 26 February 2008threshold is crossed or reached if different): 6. Date on which issuer notified: 29 February 2008 7. Threshold(s) that is/are crossed or reached: 3% 8: Notified DetailsA: Voting rights attached to shares Class/type of Situation previous to Resulting situation after the triggering transactionshares the triggeringIf possible transaction use ISIN Number of Number of Number of Number of voting Percentage of voting code shares voting shares rights rights rights Direct Indirect Direct IndirectGB00335 2,478,343 2,478,343 2,428,343 2,428,343 2.9571% 60011 B: Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration date Exercise/ conversion No. of voting rights Percentage of votinginstrument period/date that may be acquired rights (if the instrument exercised/converted)N/A Total (A+B) Number of voting rights Percentage of voting rights2,428,343 2.9571% 9. Chain of controlled undertakings through which the voting rights and /or the financial instruments are effectivelyheld, if applicable: Proxy Voting: 10. Name of proxy holder: 11. Number of voting rights proxy holder will ceaseto hold: 12. Date on which proxy holder will cease to holdvoting rights: 13. Additional Information: 14. Contact name: Jane Powney 15. Contact telephone number: 0207 730 1111 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 ExchangeRelated Shares:
PMO.L