May 20, 2011 Securities & exchange Commission 450 Fifth Street, NW Washington, DC 20549 Attn.: Document Control RE:	American Depositary Shares evidenced by One (1) American Depositary Receipts representing One (1) Ordinary Share of Premier Oil plc (Form F6 File No. 3336462) Ladies and Gentlemen: Pursuant to Rule 424(b)(3) under the Securities Act of 1933, as amended, on behalf of BNY Mellon, as Depositary for securities against which American Depositary Receipts are to be issued, we attach a copy of the new prospectus (Prospectus) reflecting the change in par value for Premier Oil plc. As required by Rule 424(e), the upper right hand corner of the Prospectus cover page has a reference to Rule 424(b)(3) and to the file number of the registration statement to which the Prospectus relates. Pursuant to Section III B of the General Instructions to the Form F6 Registration Statement, the Prospectus consists of the ADR certificate with revised par value for Premier Oil plc. The Prospectus has been revised to reflect the new par value and has been overstampted with: Effective May 23, 2011 the par value changed from GBp 0.50 to GBp 0.125 Please contact me with any questions or comments at 212 8156915. Margaret Keyes The Bank of New York Mellon ADR Division Encl. CC: Paul Dudek, Esq. (Office of International Corporate Finance) 101 Barclay Street, New York NY 10286