As filed with the Securities and Exchange Commission on August 26, 2005 ================================================================================ FORM 6-K UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934 For the month of August, 2005 PETROKAZAKHSTAN INC. ----------------------------------------------- (Translation of registrant's name into English) 140 - 4th Avenue S.W. * 1460, Calgary, Alberta T2P 3N3 ---------------------------------------- (Address of principal executive offices) Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F. Form 20-F [_] Form 40-F [X] Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934. Yes [_] No [X] If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-________________ 2 INFORMATION CONTAINED IN THIS FORM 6-K REPORT Attached as Exhibit 99.1 to this report on Form 6-K is a copy of the Arrangement Agreement, dated August 21, 2005, between CNPC International Ltd. ("CNPCI") and PetroKazakhstan Inc. relating to the offer by a wholly-owned subsidiary of CNPCI of US$55.00 per share in cash for all of the outstanding common shares of PetroKazakhstan Inc. 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. PETROKAZAKHSTAN INC. By: /s/ Anthony R. Peart --------------------------------------- Name: Anthony R. Peart Title: Senior Vice President, General Counsel and Corporate Secretary Date: August 26, 2005