[PETROCHINA COMPANY LIMITED (a joint stock limited company incorporated in the People’s Republic of China with limited (Stock Code: 857) Announcement on Increase in Shareholdings of the Company by Controlling Shareholder Company CNPC On 25 May 2011, PetroChina Company Limited (the “ 1. Details of Acquisition of Shares 2. Further Acquisition Plan Further Acquisition Plan CNPC intends to continue to] [TABLE OF CONTENTS EX-99.1 99.1 Announcement dated May 27, 2011 relating to the increase in shareholdings of the Company by the controlling shareholder. PetroChina Company Limited Dated: May 27, 2011 Li Hualin Company Secretary 6-K 1 h05130e6vk.htm 6-K]