Posting of Class 1 Circular

PREMIER OIL PLC

("Premier")

Posting of Class 1 Circular

21 November 2017

Further to yesterday's announcement regarding Premier's entry into a sale and purchase agreement to sell its interests in Licences PL089 and P534, containing the Wytch Farm field, to Perenco UK Limited (the "Disposal"), Premier is pleased to announce that a circular setting out further information regarding the Disposal and containing the Notice for a General Meeting to be held at 9.30am on 7 December 2017 at 23 Lower Belgrave Street, London SW1W 0NR (the "Circular") will be posted to shareholders today.1 The Disposal is conditional upon shareholder approval and certain other customary conditions including government and third party approvals. Subject to the satisfaction of these conditions, completion is targeted to occur by the end of December 2017.

Copies of the Circular will shortly be available on Premier's website at www.premier-oil.com under the Investors, Shareholder Information section. Copies of the Circular will also be submitted to the National Storage Mechanism and will shortly be available for inspection at www.Hemscott.com/nsm.do.

[1] Shareholders who have consented to receive communications by electronic means will receive hard copies of the Letter of Availability (detailing where the circular can be viewed online) and form of proxy only. Shareholders who have requested to receive all communications by email will receive an email including a website link to the circular and details regarding voting online.