Disaggregation Exemption Notification

24th October 2011

PREMIER OIL PLC

("the Company")

Disaggregation Exemption Notification

Following the disaggregation exemption notified to the FSA under the Disclosure and Transparency Rules on 17th October 2011, AXA SA and its subsidiary notifying Group entities, acting independently from their parent and from each other, no longer have any reportable holdings in Premier Oil plc on a Group aggregated basis. However, AXA Investment Managers SA has now crossed upward the 5% threshold and has a holding of 8.58% and 40,173,814 shares on a Group disaggregated basis as an independent Group subsidiary.

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Premier Oil plc

020 7730 1111