Interim Dividend Payment

Translation 1000/137/2010 August 25, 2010 Subject: Interim Dividend Payment Attention: President of the Stock Exchange of Thailand The Board of Directors of the Bangchak Petroleum Public Company Limited's Meeting No. 9/2010 held on August 25, 2010 has passed the resolution to approve on allocation profit from retained earning for interim dividend payment for Shareholders of the Company at Baht 0.50 per share, which include the dividend payment to Shareholders of ordinary share (BCP) and the equivalent dividend payment through Siam DR Co., Ltd. to the holders of Depository Receipt of BCP (BCP-DR1), or amount to Baht 584.92 Million. The Board of directors has set the date on September 9, 2010 to determine the list of shareholders who are entitled to receive the dividend and to list of shareholders names according to Section 225 of the Securities and Exchange Act. B.E. 2535 (Amended B.E. 2551) by closing the shareholders' registration book on September 10, 2010. The Dividend payment date is September 21, 2010. Note: - Ordinary Shareholders (BCP) paying personal income tax shall be entitled to a tax credit in according with Section 47 bis of the Revenue Code. - Depository Receipt holders (BCP-DR1) receive the equivalent dividend through Siam Dr Co., Ltd. However, the dividend is not the income according to Section 40(4)(a) of the Revenue Code. Thus, holders who receive income which is equivalent to dividend shall not be entitled to a tax credit. Please be informed accordingly. Yours sincerely, -Signed- (Mr. Anusorn Sangnimnuan) President Investor Relation Section Tel: 0-2335-4583