424B3 1 memo424b3surgutneftegazord.txt Securities exchange Commission 450 Fifth Street NW Washington DC 20549 Attn. Document Control RE American Depositary Shares evidenced by the American Depositary Receipts for Ordinary Shares par value 1000 Russian Ruble each of OAO Surgutneftegaz File No. 333102562 Ladies and Gentlemen Pursuant to Rule 424b3 under the Securities Act of 1933 as amended on behalf of The Bank of New York as Depositary for securities against which American Depositary Receipts ADRs are to be issued we attach a copy of the new prospectus Prospectus reflecting the change in the number American Depositary Shares represented by ordinary shares the Ratio. As required by Rule 424e the upper right hand corner of the Prospectus cover page has a reference to Rule 424b3 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 for OAO Surgutneftegaz. The Prospectus has been revised to reflect the new Ratio and has been overstamped with Effective April 17 2008 the ratio on the American Depositary Share ADS evidenced by American Depositary Receipt ADR has been changed from one 1 ADS representing fifty 50 Ordinary Shares to one 1 ADS representing ten 10 Ordinary Shares. Attached to this letter is a copy of a letter from OAO Surgutneftegaz to The Bank of New York Mellon requesting that the Ratio be changed. Please contact me with any questions or comments at 954 2555137. Bys SAMMY PEERMAL Name Sammy Peermal Title Vice President Encl. The Bank of New York Mellon 101 Barclay Street 22W New York NY 10286