FORM 2 - Corporate Substantial Shareholder Notice
Form Serial No: CS20070919000168
1. Name of listed corporation: PetroChina Co. Ltd. - H Shares 
2. Stock code: 00857
3. Class of shares: H Shares and American Depository Shares 
4. Number of issued shares in class: 21,099,000,000
5. Name of substantial shareholder: Berkshire Hathaway Inc. 
6. Registered office: 3555 Farnam Street Omaha, NE 68131
7. Principal place of business in Hong Kong: Nil 
13. Exchange on which listed: New York Stock Exchange
14. Name of listed parent and exchange on which parent is listed: N/A 
15. Date of relevant event: 06/09/2007
16. Date when the substantial shareholder became aware of the relevant event/ interest in the shares (if later):
17. Details of relevant event:
  Relevant event code describing circumstances Code describing capacity in which shares were/are held Number of shares bought/sold or involved Currency of transaction On Exchange Off Exchange
Before relevant event After relevant event Highest price per share Average price per share Average consideration per share Consideration code
Long position 103 205 205 28,004,000 HKD 11.580 11.470 301
18. Total shares immediately before the relevant event:
 Total number of sharesPercentage figure (%)
Long Position1,912,658,7009.07
19. Total shares immediately after the relevant event:
 Total number of sharesPercentage figure (%)
Long Position1,884,654,7008.93
20. Capacity in which interests disclosed in Box 19 are held:
Code describing capacityNumber of shares
Long position1,884,654,700

21. Further information in respect of derivative interests:
Code describing derivativesNumber of shares
22. Further information in relation to interests of corporations controlled by substantial shareholder:
Name of controlled corporationAddress and place of incorporationName of controlling shareholder% controlDirect interestNumber of shares
OBH, Inc.3555 Farnam St., Omaha, NE - DelawareBerkshire Hathaway Inc.100.00N
Long position1,884,654,700
National Indemnity Co.3024 Harney St., Omaha, NE - NebraskaOBH, Inc.100.00Y
Long position1,863,273,000
National Indemnity Co.3024 Harney St., Omaha, NE - NebraskaOBH, Inc.100.00N
Long position21,381,700
GEICO CorporationOne GEICO Plaza, Washington, DC - DelawareNational Indemnity Company100.00N
Long position21,381,700
Government Employees Inc. CompanyOne GEICO Plaza, Washington, DC - MarylandGEICO Corporation100.00Y
Long position21,381,700

23. Further information in relation to interests held by substantial shareholder jointly with another person:
Name of joint shareholderAddressNumber of shares
24. Further information from a trustee, or beneficiary of a trust, or a founder of a Discretionary Trust:
Names of TrustAddressStatus codeNumber of shares
25. Further information from a party to an agreement under Section 317:
Names of other partiesAddressNumber of shares
Total number of shares in which substantial shareholder is interested under section 317 and 318:
26. Details of person(s) in accordance with whose directions the substantial shareholder or its directors are accustomed to act:
NamesAddressRelationship Code%
Warren E. BuffettAddresses of individuals are not displayed.60631.30
27. Date of filing this Form 2: 11/09/2007
29. Number of attachments: