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EXHIBIT 12.2

CERTIFICATION PURSUANT TO 18
U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE U.S. SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of PEREZ COMPANC S.A. (the Company)
on Form 20-F for the fiscal year ended December 31, 2002, as filed with the
U.S. Securities and Exchange Commission on the date hereof (the Report), I,
Alberto Guimarães, Chief Executive Officer, certify, pursuant to 18 U.S.C.
section 1350, as adopted pursuant to section 906 of the U.S. Sarbanes-Oxley Act
of 2002, that:



| | (i)  |  | the Report fully complies with the requirements of section
13(a) or 15(d) of the U.S. Securities Exchange Act of 1934; and                          
| | ---- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (ii) |  | the information contained in the Report fairly presents, in
all material respects, the financial condition and results of
operations of the Company.

|       |  |                         |                   | 
|------ |  | ----------------------- | ----------------- | 
|By:    |  | /s/                     | Alberto Guimarães
|       | 
|Name:  |  | Alberto Guimarães      
|Title: |  | Chief Executive Officer

Date: June 30, 2003

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature
that appears in typed form within the electronic version of this written
statement required by Section 906, has been provided to the Company and will be
retained by the Company and furnished to the Securities and Exchange Commission
or its staff upon request.

148



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##### 



CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE U.S. SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of PEREZ COMPANC S.A. (the Company)
on Form 20-F for the fiscal year ended December 31, 2002, as filed with the
U.S. Securities and Exchange Commission on the date hereof (the Report), I,
Carlos Alvarez, Chief Financial Officer, certify, pursuant to 18 U.S.C. section
1350, as adopted pursuant to section 906 of the U.S. Sarbanes-Oxley Act of
2002, that:



| | (i)  |  | the Report fully complies with the requirements of section
13(a) or 15(d) of the U.S. Securities Exchange Act of 1934; and                          
| | ---- |  | ----------------------------------------------------------------------------------------------------------------------------------------------------
|
| | (ii) |  | the information contained in the Report fairly presents, in
all material respects, the financial condition and results of
operations of the Company.

|    |  |                                 
|--- |  | --------------------------------
|By: |  | /s/     Carlos Alvarez          
|    |  |                                 
|    |  | Name: Carlos Alvarez            
|    |  | Title:   Chief Financial Officer

Date: June 30, 2003

A signed original of this written statement required by Section 906, or other
document authenticating, acknowledging, or otherwise adopting the signature
that appears in typed form within the electronic version of this written
statement required by Section 906, has been provided to the Company and will be
retained by the Company and furnished to the Securities and Exchange Commission
or its staff upon request.

149