EX-99.906CERT Section 906 Certifications CERTIFICATION PURSUANT TO 18 U.S.C SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2003 John V. Murphy, Chief Executive Officer, and Brian W. Wixted, Chief -------------- ---------------- Financial Officer, of Oppenheimer Senior Floating Rate Fund (the "Registrant"), each certify to the best of his or her knowledge that: 1. The Registrant's periodic report on Form N-CSR for the period ended January 31, 2004 (the "Form N-CSR") fully complies with the requirements of Section 15(d) of the Securities Exchange Act of 1934, as amended; and 2. The information contained in the Form N-CSR fairly presents, in all material respects, the financial condition and results of operations of the Registrant. This certification is being furnished to the Commission solely pursuant to 18 U.S.C. ss. 1350 and is not being filed as part of the Form N-CSR filed with the Commission. Chief Executive Officer Chief Financial Officer Oppenheimer Senior Floating Rate Oppenheimer Senior Floating Rate Fund Fund /s/John V. Murphy /s/Brian W. Wixted - ---------------------------- ---------------------------- John V. Murphy Brian W. Wixted Date: 3/11/04 Date: 3/11/04