[2011 ANNUAL REPORT PETROCHINA COMPANY LIMITED PetroChina Summary of Financial Data and Financial Notes: (1) Due to business combinations under common control completed in 2008 and 2009, the relevant financial statements of the Group have been restated in a manner identical to a pooling of interests to reflect the acquisitions. (2) As at December 31, 2007, basic and diluted earnings] [99.1 Announcement dated April 16, 2012 relating to the Annual Report for the year ended December 31, 2011 according to Hong Kong Exchange Listing Rules. PetroChina Company Limited Dated: April 16, 2012]