6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OFFOREIGN ISSUER

Pursuant to Rule 13a-16 or 15d-16 of

the Securities Exchange Act of 1934

For the month of September 2020

Commission File Number: 001-15006

PETROCHINA COMPANY LIMITED

9 DongzhimenNorth Street, Dongcheng District

Beijing, The People’s Republic of China, 100007

(Address of Principal Executive Offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒ Form 40-F  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

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  ☒

(If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-            )

EXHIBITS

Exhibit Number

99.1 Closing of the disposal and external investment concerning the pipeline business and assets.

SIGNATURE ****

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this announcement to be signed on its behalf by the undersigned, thereunto duly authorized.

EX-99.1

Exhibit 99.1

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement, make norepresentation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.

中國石油天然氣股份有限公司

PETROCHINA COMPANY LIMITED

(a joint stock limited company incorporated in the People’s Republic of China with limited liability)

(Stock Code: 857)

CLOSING OF THE DISPOSAL AND EXTERNAL INVESTMENT

CONCERNING

THE PIPELINEBUSINESS AND ASSETS

We refer to the announcement of PetroChina Company Limited (the “Company”) dated 23 July 2020 and the circular of the Company dated 12 August 2020 (the “Circular”) in relation to the disposal and external investment concerning the pipeline business and assets. Unless otherwise defined, capitalized terms used in this announcement shall have the same meanings as those defined in the Circular.

The Board is pleased to announce that all of the conditions precedent set out in the Transaction Agreements have been satisfied. The ownership and risk of the Target Assets shall be passed to PipeChina at 24:00 on the date of this announcement. Meanwhile, pursuant to the Operation Agreement, the Company has recently entered into service contracts with PipeChina with respect to the use of relevant oil and gas pipeline facilities and natural gas infrastructure, in which the conditions and arrangements for related services have been agreed on.

Beijing, the PRC

30 September 2020

As at the date of this announcement,the Board comprises Mr. Dai Houliang as Chairman; Mr. Li Fanrong as Vice Chairman and non-executive Director; Mr. Liu Yuezhen, Mr. Lv Bo, Mr. Jiao Fangzheng and Mr. HuangYongzhang as non-executive Directors; Mr. Duan Liangwei as executive Director; and Ms. Elsie Leung Oi-sie, Mr. Tokuchi Tatsuhito, Mr. Simon Henry,Mr. Cai Jinyong and Mr. Jiang, Simon X. as independent non-executive Directors.