PTR [PETROCHINA CO] 6-K: PETROCHINA COMPANY LIMITED (a joint stock limited company
[PETROCHINA COMPANY LIMITED (a joint stock limited company incorporated in the Peoples Republic of China with limited liability) (Stock Code: 857) ADVANCE NOTICE FOR ESTIMATED PROFIT OF THE INTERIM RESULTS OF 2017 Company Group Listing Rules This announcement is made by PetroChina Company Limited (t]