6-K

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE
SECURITIES EXCHANGE ACT OF 1934

For the month of January 2011

Commission File Number 1-15106	Commission File Number 333-14168
PETRÓLEO BRASILEIRO S.A. — PETROBRAS	PETROBRAS INTERNATIONAL FINANCE COMPANY
(Exact name of registrant as specified in its charter)	(Exact name of registrant as specified in its charter)
BRAZILIAN PETROLEUM CORPORATION —PETROBRAS	Not Applicable
(Translation of registrant’s name into English)	(Translation of registrant’s name into English)
Avenida República do Chile, 65	4th Floor, Harbour Place
20035-900 — Rio de Janeiro — RJ,	103 South Church Street
Brazil	P.O. Box 1034GT — BWI
(55-21) 3224-4477	George Town, Grand Cayman
(Address of principal executive offices)	Cayman Islands
	(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 þ Form 40-F o

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):                    

Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.

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 o No þ

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

This report on Form 6-K is incorporated by reference in the Registration Statement on Form of F-3 of Petróleo Brasileiro S.A. — Petrobras (No. 333-163665) and Petrobras International Finance Company (No. 333-163665-01) and the preliminary prospectus supplement dated as of January 18, 2011.

Exhibits

Exhibit 15.1 — Awareness Letter of KPMG Auditores Independentes

Exhibit 15.2 — Awareness Letter of KPMG Auditores Independentes

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SIGNATURES

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

	PETRÓLEO BRASILEIRO S.A. — PETROBRAS
Date: January 18, 2011	By	/s/ Almir Guilherme Barbassa
		Executive Officer
Date: January 18, 2011	PETROBRAS INTERNATIONAL FINANCE COMPANY
	By	/s/ Sérvio Túlio Da R. Tinoco
		Executive Officer

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EX-15.1

Exhibit 15.1

KPMG KPMG Auditores Independentes

Av. Almirante Barroso, 52 — 4°
20031-000 — Rio de Janeiro, RJ — Brasil
Caixa Postal 2888
20001-970 — Rio de Janeiro, RJ — Brasil Central Tel 55 (21) 2515-9400
Fax 55 (21) 3515-9000
Internet www.kpmg.com.br

To
Petróleo Brasileiro S.A.—Petrobras
Rio de Janeiro, Brazil

January 18, 2010

With respect to the registration statement on Form F-3 (333-163665), we acknowledge our awareness of the incorporation by reference therein of our report dated November 23, 2010, related to our review of interim financial information of Petróleo Brasileiro S.A.—Petrobras.

Pursuant to Rule 436 under the Securities Act of 1933 (the “Act”), such report is not considered part of a registration statement prepared or certified by an independent registered public accounting firm, or a report prepared or certified by an independent registered public accounting firm within the meaning of Sections 7 and 11 of the Act.

/s/ KPMG Auditores Independentes  

KPMG Auditores Independentes 

Rio de Janeiro, Brazil 

EX-15.2

Exhibit 15.2

KPMG	KPMG Auditores Independentes Av. Almirante Barroso, 52 — 4° 20031-000 — Rio de Janeiro, RJ — Brasil Caixa Postal 2888	Central Tel 55 (21) 2515-9400 Fax 55      (21) 3515-9000 Internet       www.kpmg.com.br
	20001-970 — Rio de Janeiro, RJ — Brasil

To
Petrobras International Finance Company (“PifCo”)
Rio de Janeiro, Brazil

January 18, 2011

With respect to the registration statement on Form F-3 (333-163665-01), we acknowledge our awareness of the incorporation by reference therein of our report dated November 23, 2010, related to our review of interim financial information of PifCo.

Pursuant to Rule 436 under the Securities Act of 1933 (the “Act”), such report is not considered part of a registration statement prepared or certified by an independent registered public accounting firm, or a report prepared or certified by an independent registered public accounting firm within the meaning of Sections 7 and 11 of the Act.

/s/ KPMG Auditores Independentes  

KPMG Auditores Independentes 

Rio de Janeiro, Brazil