Derivatives: Anticipated adjustment in Vostok Gas due to distribution of the company’s holding in Gazprom (66/08)

The following information is based on a press release from Vostok Gas Ltd (Vostok Gas) dated December 9, 2008 and may be subject to change.

The Board of Directors has resolved to initiate the closing down of Vostok Gas and distribute all the Gazprom ADR’s held by the company to its shareholders. The board proposes that the Extra General Meeting (EGM) approves a redemption process (1:1), whereby shareholders are entitled to one (1) redemption share for every one (1) share held. The redemption share will then be subject to a compulsory redemption for 0.6524 American Depository Receipts (ADR´s) in Gazprom. Record date for the redemption process is January 9, 2009. Provided that the EGM, which will be held December 23, 2008, approves the proposal, NASDAQ OMX Derivatives Markets will change Expiration date for options and futures in Vostok Gas and adjust the OMXS30 index as described in the attached document.