6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN ISSUER

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

the Securities Exchange Act of 1934

For the month of August 2022

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 Announcement regarding the completion of the procedures for the release of the registration of pledge and trust for the exchangeable corporate bonds by the controlling shareholder.

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 Exchange 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 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)

OVERSEAS REGULATORY ANNOUNCEMENT

ANNOUNCEMENT REGARDING THE COMPLETION OF THE PROCEDURES

FOR THE RELEASE OF THE REGISTRATION OF PLEDGE AND TRUST FOR

THE EXCHANGEABLE CORPORATE BONDS BY THE CONTROLLING SHAREHOLDER

This announcement is made pursuant to Part XIVA of the Securities and Futures Ordinance and Rules 13.09(2)(a) and 13.10B of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited.

PetroChina Company Limited (the “Company”) has received a notification from China National Petroleum Corporation (“CNPC”), the controlling shareholder of the Company, informing the Company that CNPC had completed the procedures at Shanghai Branch of China Securities Depository and Clearing Corporation Limited for the release of the registration of pledge and trust of remaining unexchanged 2,051,487,972 A shares of the Company, as the underlying shares for the registration of pledge and trust for the exchangeable corporate bonds issued by CNPC in 2017, held in CNPC-CSC-17 CNPC EB Pledge and Trust Special Account (the “17 CNPC EB SpecialAccount”).

Following the completion of the release of the registration of pledge and trust of above-mentioned shares, CNPC held 148,933,827,108 shares^1^ of the Company, representing 81.38% of the total issued share capital of the Company; 17 CNPC EB Special Account no longer held any share of the Company.

Beijing, China

2 August 2022

As at the date of this announcement, the Board comprises Mr. Dai Houliang as Chairman; Mr. Hou Qijun as Vice Chairman and non-executive Director; Mr. Duan Liangwei and Mr. Xie Jun as non-executive Directors; Mr. Jiao Fangzheng, Mr. Huang Yongzhang and Mr. Ren Lixin asexecutive Directors; and Ms. Elsie Leung Oi-sie, Mr. Tokuchi Tatsuhito, Mr. Cai Jinyong and Mr. Jiang, Simon X. as independent non-executive Directors.