Result of Converting Warrants No.1 (BCP-W1)

-Translation- 1000/172/2006 July 3, 2006 The Stock Exchange of Thailand 62, Ratchadapisek Road, Klongtoey Bangkok 10110 Subject : Result of Exercise Warrants to BCP Ordinary shares No.1 (BCP-W1) Attention : President of The Stock Exchange of Thailand According to The Term of Title on The Rights and Duties of Warrants of The Bangchak Petroleum Public Company Limited No. 1/2006, and Terms of Title on The Rights and Duties of Warrant Issuer and Warrant holders, have the right to exercise the warrants (BCP-W1) to ordinary shares (BCP). Warrant holders can exercise the right at the end of March, June, September, and December every year. The First exercise date was on June 30, 2006. There was 1 warrant holder, Thai juristic person, converted 25,000 warrants to 25,000 ordinary shares. (The exercise price was Baht 18.00) After such conversion, there were 69,067,486 warrants and the company's paid up capital will be increased from Baht 1,119,071,351 to 1,119,096,351. Please be informed accordingly. Yours sincerely, -signed- (Patiparn Sukorndhaman) Senior Executive Vice President Accounting and Finance Office of the Secretary to Board of Directors Tel: 0-2335-4584