Exhibit 99:

    CERTIFICATIONS PURSUANT TO 18 U.S.C. SECTION 1350 AS ADOPTED PURSUANT TO

                         THE SARBANES-OXLEY ACT OF 2002

                                  CERTIFICATION

Pursuant to 18 U.S.C. Section 1350, the undersigned officer of Oil-Dri
Corporation of America (the "Company") hereby certifies that the Company's
Annual Report on Form 10-K for the year ended July 31, 2004 (the "Report") fully
complies with the requirements of Section 13(a) or 15(d), as applicable, of the
Securities Exchange Act of 1934 and that the information contained in the Report
fairly presents, in all material respects, the financial condition and results
of operation of the Company.

Dated: October 28, 2004

/s/ Daniel S. Jaffee
- --------------------------------------------
Name: Daniel S. Jaffee
Title: President and Chief Executive Officer

A signed original of this written statement required by Section 906 has been
provided to Oil-Dri Corporation of America and will be retained by Oil-Dri
Corporation of America and furnished to the Securities and Exchange Commission
or its staff upon request.

                                  CERTIFICATION

Pursuant to 18 U.S.C. Section 1350, the undersigned officer of Oil-Dri
Corporation of America (the "Company") hereby certifies that the Company's
Annual Report on Form 10-K for the quarter ended July 31, 2004 (the "Report")
fully complies with the requirements of Section 13(a) or 15(d), as applicable,
of the Securities Exchange Act of 1934 and that the information contained in the
Report fairly presents, in all material respects, the financial condition and
results of operation of the Company.

Dated: October 28, 2004

/s/ Andrew N. Peterson
- ------------------------------
Name: Andrew N. Peterson
Title: Chief Financial Officer

A signed original of this written statement required by Section 906 has been
provided to Oil-Dri Corporation of America and will be retained by Oil-Dri
Corporation of America and furnished to the Securities and Exchange Commission
or its staff upon request.

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