UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C. 20549

                                 Form N-23c-3

                       Notification of Repurchase Offer

                  Pursuant to Rule 23c-3 [17 CFR 270.23c-3]
_____________________________________________________________________________________
1.    Investment Company Act File Number        Date of Notification:  July 2,
2007
      811-09373
_____________________________________________________________________________________
2.    Exact name of investment company as specified in registration statement:
      Oppenheimer Senior Floating Rate Fund
_____________________________________________________________________________________
3.    Address of principal  executive office:  (number,  street,  city, state,
      zip code)
      6803 South Tucson Way, Centennial, Colorado 80112
_____________________________________________________________________________________
4.    Check one the following:

      A. [x] The  notification  pertains to a periodic  repurchase offer under
         paragraph (b) of Rule 23c-3.

B.    [ ] The notification pertains to a discretionary  repurchase offer under
            paragraph (c) of Rule 23c-3.

C.    [ ] The  notification  pertains  to a periodic  repurchase  offer  under
            paragraph (b) of Rule 23c-3 and a discretionary  repurchase  offer
            under paragraph (c) of Rule 23c-3.
_____________________________________________________________________________________


                                    By:   /s/ Kathleen Ives_________________
                                                (Name)

                                          Assistant Secretary______________
                                                (Title)

INSTRUCTIONS:

1.    This  Form  must  be  completed  by  registered   closed-end  investment
   companies or business  development  companies that make  repurchase  offers
   pursuant to Rule 23c-3.  The Form shall be  attached to a  notification  to
   shareholders under paragraph (b)(4) of Rule 23c-3.

2.    Submissions  using  this  Form  shall be filed  in  triplicate  with the
   Commission  within  three  business  days after a  notification  is sent to
   shareholders.  One copy  shall be  manually  signed;  the other  copies may
   have facsimile or typed signatures.

SEC'S COLLECTION OF INFORMATION

An agency may not conduct or sponsor,  and a person is not required to respond
to, a collection of information  unless it displays a currently  valid control
number.  Filing of this  Form is  mandatory.  The  principal  purpose  of this
collection  of  information  is to ensure that  investment  companies  provide
basic information  necessary for the Commission to process filed notifications
to  shareholders  and to monitor  companies'  use of  repurchase  offers.  Any
member of the public may direct to the Commission any comments  concerning the
accuracy  of the  burden  estimate  of  this  Form,  and any  suggestions  for
reducing  this burden.  This  collection of  information  has been reviewed by
the  Office  of  Management  and  Budget  in  accordance  with  the  clearance
requirements  of 44  U.S.C.ss.  3507.  The  responses  to  the  collection  of
information will not be kept confidential.

Oppenheimer Senior Floating Rate Fund
6803 South Tucson Way, Centennial, Colorado 80112
1.800.225.5677
                           Repurchase Offer Notice
July 2, 2007

Dear Oppenheimer Senior Floating Rate Fund Shareholder:

This notice is to inform you about your Fund's  quarterly  offer to repurchase
a  portion  of  its  outstanding   shares  and  to  provide   instructions  to
shareholders  who  would  like to  tender  some  or all of  their  shares  for
repurchase  by  the  Fund.  This  repurchase  offer  is  intended  to  provide
liquidity  to  shareholders,  because  shares of your Fund are not  redeemable
daily for cash nor are they traded on a stock exchange.  You can offer some or
all of  your  Fund  shares  for  repurchase  only  during  one  of the  Fund's
scheduled quarterly repurchase offers.

The  repurchase  offer period will begin on July 2, 2007,  and end on July 31,
2007. If you wish to sell any of your Fund shares  during this tender  period,
you can do so in one of the following ways:
1.    If your shares are held in your own name  (please  refer to your account
      statement),  you can complete the attached  Repurchase  Request Form and
      return it to  OppenheimerFunds  Services,  the Fund's Transfer Agent, by
      the close of the New York Stock  Exchange  (normally  4:00 P.M.  EST) on
      July 31, 2007.  The Fund  currently does not charge a processing fee for
      handling repurchase requests.
2.    If your shares are held in your own name  (please  refer to your account
      statement),  you can place a repurchase request by telephone if you call
      no later than the close of the New York Stock  Exchange  (normally  4:00
      PM EST) on July 31,  2007.  If you  request  payment  by check,  you can
      request  repurchase of shares valued at up to  $100,000.00 by telephone,
      and  the  proceeds  must be sent to your  address  of  record  by  check
      payable to all owners of record.  There is no dollar limit on repurchase
      requests  by  telephone  if the  proceeds  are to be sent  to your  bank
      account designated under AccountLink (see the Prospectus for details).
3.    If your  shares  are  held  for you by your  broker-dealer,  or for your
      retirement plan by your retirement plan trustee,  your  broker-dealer or
      retirement  plan  trustee  must submit the  repurchase  request for you.
      They may charge a transaction fee for that service.

Please refer to your Fund Prospectus and the enclosed  Repurchase  Offer Terms
and  Repurchase  Request Form for more details.  If you are not  interested in
selling  any of your shares at this time,  you do not have to do anything  and
can  disregard  this notice.  We will contact you again next quarter to remind
you of the next repurchase offer.

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All requests to have shares  repurchased must be received by  OppenheimerFunds
Services,  the Fund's  Transfer Agent, at its office in Colorado in good order
by the close of the New York Stock  Exchange  (normally  4:00 PM EST) July 31,
2007 (the Repurchase Request Deadline).
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Please  refer to the  enclosed  Repurchase  Offer  documents.  If you have any
questions,  call  your  financial  advisor  or  broker,  or you can  call  the
Transfer Agent at 1.800.225.5677.

Sincerely,
OppenheimerFunds Services
Transfer Agent

Oppenheimer Senior Floating Rate Fund

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                           REPURCHASE REQUEST FORM
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To: Oppenheimer Senior Floating Rate Fund
Please repurchase the shares of Oppenheimer Senior Floating Rate Fund
designated below at a price equal to their net asset value per share (NAV) on
the Repurchase Pricing Date that applies to this quarterly Repurchase Offer
ending on July 31, 2007. I understand that if any shares repurchased are
subject to an Early Withdrawal Charge, that charge will be deducted from the
proceeds of my repurchased shares.


Name(s) of Registered Shareholders:
________________________________________
(Please fill in EXACTLY as listed on your account statement):
_____________________________________
_____________________________________
Your Senior Floating Rate Fund Account Number:
________________________________________

Your Daytime Telephone Number:                 (____) _______ --____________
                                               Area Code         Number
Shares Tendered for Repurchase:
(Please fill in ALL applicable information)

|_|   Partial Tender    Please repurchase __________ (number of Shares)
shares from my account.
|_|   Full Tender   Please tender all shares from my account
|_|   Dollar Amount     Please repurchase enough of my shares so that I will
      receive $____________.
                    (If an Early Withdrawal Charge applies, enough shares
                    will be repurchased, subject to pro-ration, to provide
                    the net proceeds requested.)

|_|   Exchange      Please exchange the shares repurchased above for shares
of
                    Oppenheimer __________________ Fund (fill in name of
                    fund) in the following account number
                    __________________.  (By checking this option, you
                    certify that you have already received a current
                    prospectus of that Fund.)

                    Please check one of the following below:
                    |_| Partial Tender:  Please exchange $_________ or
________number of shares.
                    |_| Full Tender:  Please exchange all shares tendered for
repurchase in this offer.

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Important:  If you are requesting a repurchase from your Retirement account,
you must complete this tax withholding section.
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Tax-withholding information
------------------------------------------------------------------------------
Please indicate your tax withholding  election.  Please note  OppenheimerFunds
cannot withhold less than 10%.  (We do not withhold state taxes.)

------------------------------------------------------------------------------
NOTE:  OppenheimerFunds is required by law to withhold 10%or more from the
repurchase amount if no withholding election is made.
------------------------------------------------------------------------------

------------------------------------------------------------------------------
 I do not want federal income taxes withheld.
------------------------------------------------------------------------------

------------------------------------------------------------------------------
 I want federal income tax withheld at the rate of ____________% from each
    account.
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                  Please be sure to sign on the reverse side






Payment and Delivery Instructions:
Unless you have elected to exchange your shares for shares of another
Oppenheimer fund, a check for the proceeds of repurchased shares will be
issued in the name of the registered shareholder(s) and mailed to the address
of record on the account.  If alternative payment and delivery is required,
please provide instructions here (and signatures must be guaranteed).

Alternative Mailing Instructions:
________________________________________________________

________________________________________________________

Please sign below and note the following important points:
o     Your signature(s) below MUST CORRESPOND EXACTLY with the name(s) in
   which the shares are registered.
o     If the shares are held by two or more joint holders, ALL SHAREHOLDERS
   MUST SIGN BELOW.
o     If the shares are held in an OppenheimerFunds retirement account, you
   must include a Form W-4P with this Repurchase Request or you must complete
   the tax election section above.  Without this information your request may
   not be accepted (call OppenheimerFunds Services at 1-800-225-5677 to
   obtain the required form).
o     If the shares are held in the name of a trustee, executor, guardian,
   attorney-in-fact, corporation, partnership or other representative
   capacity, include the name of the owner, sign using your title and submit
   evidence of your authority in a form satisfactory to OppenheimerFunds
   Services.
o     If you believe you are entitled to a waiver or reduction of an Early
   Withdrawal Charge based upon the terms of the Fund's Prospectus and
   Statement of Additional Information, you must provide that information to
   the Transfer Agent with this request, or the full Early Withdrawal Charge
   will be deducted.
            ? I am entitled to a waiver/reduction of the Early Withdrawal
            Charge (state basis using categories identified in the Statement
            of Additional Information or prospectus):

All signatures must be guaranteed unless ALL of the following conditions
apply:
o     This Repurchase Request Form is signed by all registered holder(s) of
   the shares, AND
o     There is no change of registration for any shares you will continue to
   hold, AND
o     The payment of the repurchase proceeds is to be sent to the registered
   owners of the shares at the address shown in the share registration on
   your account statement, AND
o     The repurchase proceeds will be less than or equal to $100,000.

In all other cases, ALL signatures must be guaranteed by one of the
following: U.S. bank, trust company, credit union or savings association, or
by a foreign bank that has a U.S. correspondent bank, or by a U.S. registered
dealer or broker in securities, municipal securities, or government
securities, or by a U.S. national securities exchange, a registered
securities association or a clearing agency.

Date: ____________________________________________

Signature(s) of owner(s) Exactly as shares are registered   SIGNATURE(s)
GUARANTEED BY

_________________________________________________
_________________________________________
(Signature of
Owner)
(Signature

_________________________________________________
_________________________________________
(Signature of Joint Owner)                                  (Name)
(Title)

  If you have any questions about this form, call OppenheimerFunds Services
                               1.800.225.5677.

This form must be RECEIVED by July 31, 2007 (the Repurchase Request
Deadline), if you want to sell some or all of your shares of Oppenheimer
Senior Floating Rate Fund.  Repurchase Requests received by OppenheimerFunds
Services cannot be revoked after the Repurchase Request Deadline.

-----------------------------------------------------------------------------------------------------------------------
If you are using regular mail, send this form to:      If you are using courier or express mail send this form to:

      OppenheimerFunds Services                              OppenheimerFunds Services
      P.O. Box 5270                                          10200 E. Girard Avenue, Building D
      Denver, Colorado 80217-5270                            Denver, Colorado 80231
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Oppenheimer Senior Floating Rate Fund
----------------------------------------------------------------------------------------

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                                 REPURCHASE OFFER TERMS
----------------------------------------------------------------------------------------
                                      July 2, 2007
----------------------------------------------------------------------------------------

1.    The Offer.  Oppenheimer Senior Floating Rate Fund (the "Fund') is offering to
   repurchase for cash up to twenty percent (20%) of the aggregate of its issued and
   outstanding Class A, Class B, Class C   and Class Y Shares of beneficial interest
   ("Shares") at a price equal to the respective net asset value ("NAV" or "Net Asset
   Value") as of the close of the New York Stock Exchange on the Repurchase Pricing
   Date (defined below) upon the terms and conditions set forth in this Offer, the
   Repurchase Offer Notice, the Fund's Prospectus, and the related Repurchase Request
   Form. Together those documents constitute the "Repurchase Offer". The purpose of
   the Repurchase Offer is to provide liquidity to shareholders of the Fund. The offer
   is not conditioned upon the tender for repurchase of any minimum number of Shares.
   All classes of Shares are considered to be a single class for the purposes of
   allocating repurchases under this Repurchase Offer.

2.    Repurchase Request Deadline - How to Submit Requests.  All tenders of Shares for
   repurchase must be received in proper form by the Transfer Agent at its office in
   Colorado or by its designated agents on or before the close of the New York Stock
   Exchange (normally the Exchange closes at 4:00 p.m., Eastern Time, but may close
   earlier on certain days) on July 31, 2007. Repurchase Requests submitted to the
   Transfer Agent in writing must be sent to the addresses specified in the Repurchase
   Request Form. Shareholders holding shares of the Fund in their own name(s) may
   place a repurchase request with the Transfer Agent by telephone at 1.800.225.5677.

3.    Repurchase  Pricing Date.  The Net Asset Values of Class A, Class B, Class C,
   and Class Y Shares for repurchases must be determined no later than August 14,
   2007. However, the Fund intends to determine those Net Asset Values on July 31, 2007
   (the Repurchase Request Deadline), if doing so is not likely to result in
   significant dilution of the prices of the Shares, or as soon as such determination
   can be made after that date. If the Fund chooses a Repurchase Pricing Date later
   than the Repurchase Request Deadline, there is a risk that the Fund's net asset
   values per share may fluctuate between those dates.

4.    Net Asset Values. On June 21, 2007, the Net Asset Value per share of the Fund's
   Class A Shares was $9.53 the Net Asset Value of the Fund's Class B Shares was
   $9.53, the Net Asset Value per share of the Fund's Class C shares was $9.54 and the
   Net Asset Value per share of the Fund's Class Y shares was $9.52. You must
   determine whether to tender Shares prior to the Repurchase Request Deadline, but
   the Net Asset Values at which the Fund will repurchase Shares will not be
   calculated until the Repurchase Pricing Date. The Net Asset Values can fluctuate
   and may fluctuate between the date you submit your Repurchase Request and the
   Repurchase Request Deadline and the Repurchase Pricing Date.  The Net Asset Values
   on the Repurchase Request Deadline and the Repurchase Pricing Date could be higher
   or lower than on the date you submit a Repurchase Request. Please call
   OppenheimerFunds Services at 1.800.225.5677 for the Fund's current Net Asset Values.

5.    Payment For Repurchased Shares.  Payment for all Shares repurchased pursuant to
   this Repurchase Offer will be made not later than 7 days after the Repurchase
   Pricing Date.

6.    Increase in Number of Shares Repurchased; Pro Rata Repurchases.  If shareholders
   tender for repurchase more Shares than the number of Shares that the Fund is
   offering to repurchase, the Fund may (but is not obligated to) increase the number
   of Shares that the Fund is offering to purchase by up to two percent (2%) of the
   number of Shares outstanding on the Repurchase Request Deadline. The Fund may
   increase the number of Shares to be repurchased or the Fund may decide not to do
   so. In either case, if the number of Shares tendered for repurchase exceeds the
   number of Shares which the Fund is offering to repurchase, the Fund will repurchase
   tendered shares on a pro rata basis. The Fund may, in its discretion, accept all
   Shares tendered by shareholders who own less than 100 Shares and tender all their
   Shares for repurchase in this Repurchase Offer, before prorating the Shares
   tendered by other shareholders.  There can be no assurance that the Fund will be
   able to repurchase all the Shares that you tender even if you tender all the Shares
   that you own. In the event of an oversubscribed Repurchase Offer, you may be unable
   to liquidate some or all of your investment at Net Asset Value. You may have to
   wait until a subsequent repurchase offer to tender shares that the Fund was unable
   to repurchase, and you would be subject to the risk of Net Asset Value fluctuations
   during that time.

7.    Withdrawal of Tender of Shares for Repurchase.  Shares tendered pursuant to the
   Repurchase Offer may be withdrawn or you may change the number of Shares tendered
   for Repurchase at any time prior to the close of the New York Stock Exchange
   (normally the Exchange closes at 4:00 p.m., Eastern time, but may close earlier on
   certain days) on July 31, 2007 (the Repurchase Request Deadline). You must send a
   written notice to the Transfer Agent at one of its addresses specified in this
   Repurchase Request Form or the Prospectus, and the Transfer Agent must receive it
   before the Repurchase Request Deadline.

8.    Suspension or Postponement of Repurchase Offer. The Board of Trustees of the
   Fund may suspend or postpone this Repurchase Offer only by a majority vote of the
   Trustees (including a majority of the disinterested Trustees) and only:

         (A) for any period during which the New York Stock Exchange or any market in
         which the securities owned by the Fund are principally traded is closed,
         other than customary weekend and holiday closings, or during which trading in
         such market is restricted;

         (B) for any period during which an emergency exists as a result of which
         disposal by the Fund of securities owned by it is not reasonably practicable,
         or during which it is not reasonably practicable for the Fund fairly to
         determine the value of its net assets; or

         (C) for such other periods as the Securities and Exchange Commission may
         order for the protection of shareholders of the Fund; or

         (D) if the Repurchase Offer would cause the Fund to lose its status as a
         regulated investment company under Subchapter M of the Internal Revenue Code.

9.    Tax Consequences.  Shareholders should consult their tax advisers regarding the
   specific tax consequences, including state and local tax consequences, of a
   repurchase of their Shares. Special tax rules apply to shares repurchased from
   retirement plan accounts. A tender of Shares pursuant to the Repurchase Offer
   (including an exchange for shares of another Oppenheimer fund) will be treated as a
   taxable sale or exchange of the Shares if the tender (i) completely terminates the
   shareholder's interest in the Fund, (ii) is treated under the Internal Revenue Code
   as a distribution that is "substantially disproportionate" or (iii) is treated
   under the Internal Revenue Code as a distribution that is "not essentially
   equivalent to a dividend".  A "substantially disproportionate" distribution
   generally requires a reduction of at least 20% in the shareholder's proportionate
   interest in the Fund after all Shares are tendered.  A distribution "not
   essentially equivalent to a dividend" requires that there be a "meaningful
   reduction" in the shareholder's interest, which should be the case if the
   shareholder has a minimal interest in the Fund, exercises no control over Fund
   affairs and suffers a reduction in his or her proportionate interest. The Fund
   intends to take the position that tendering shareholders will qualify for sale or
   exchange treatment.  If the transaction is treated as a sale or exchange for tax
   purposes, any gain or loss recognized will be treated as a capital gain or loss by
   shareholders who hold their Shares as a capital asset and as a long-term capital
   gain or loss if such Shares have been held for more than twelve months.  If the
   transaction is not treated as a sale or exchange, the amount received upon a sale
   of Shares may consist in whole or in part of ordinary dividend income, a return of
   capital or capital gain, depending on the Fund's earnings and profits for its
   taxable year and the shareholder's basis in the Shares. In addition, if any amounts
   received are treated as a dividend to tendering shareholders, a constructive
   dividend may be received by non-tendering shareholders whose proportionate interest
   in the Fund has been increased as a result of the tender.

10.   Early Withdrawal Charges. The Fund does not charge a special handling or
   processing fee for repurchases. However, if you tender for repurchase Class A,
   Class B, Class C or Class Y Shares that are subject to Early Withdrawal Charges as
   described in the Fund's Prospectus, and if those Shares are repurchased by the
   Fund, the applicable Early Withdrawal Charge will be deducted from the proceeds of
   the repurchase of your shares. If you ask that a specific number of shares be
   repurchased and those shares are repurchased, the applicable sales charge will be
   deducted from the repurchase proceeds. If you ask the Fund to repurchase a
   sufficient number of shares to provide you with proceeds of a specific dollar
   amount, and if some or all of those shares are subject to Early Withdrawal charges,
   then (assuming your request is not subject to pro-ration) the Fund will repurchase
   a sufficient number of shares to pay the net proceeds you have requested and enough
   additional shares to pay the applicable Early Withdrawal Charge. If you claim
   entitlement to a waiver or reduction of Early Withdrawal Charges based upon the
   terms of the Fund's current Prospectus or Statement of Additional Information, you
   must identify the basis of that entitlement to the Transfer Agent in written
   instructions submitted as part of your Repurchase Request Form.

11.   Proper Form of Repurchase Request Documents.  All questions as to the validity,
   form, eligibility (including, for example, the time of receipt) and acceptance of
   repurchase requests will be determined by the Fund and its Transfer Agent, in their
   sole discretion, and that determination will be final and binding. The Fund
   reserves the right to reject any and all tenders of repurchase requests for Shares
   determined not to be in the proper form, or to refuse to accept for payment,
   purchase, exchange or pay for any Shares if, in the opinion of counsel to the Fund
   or the Transfer Agent, accepting, purchasing, exchanging, or paying for such Shares
   would be unlawful. The Fund also reserves the absolute right to waive any of the
   conditions of this Offer or any defect in any tender of Shares, whether in general
   or with respect to any particular Shares or shareholder(s). The Fund's
   interpretations of the terms and conditions of this Repurchase Offer shall be final
   and binding. Unless waived, any defects or irregularities in connection with
   repurchase requests must be cured within the times as the Fund shall determine.
   Tenders of Shares will not be deemed to have been made until all defects or
   irregularities have been cured or waived.

   Neither the Fund, OppenheimerFunds Services, OppenheimerFunds, Inc. (the Fund's
   investment advisor) nor OppenheimerFunds Distributor, Inc. (the Fund's Distributor)
   nor any other person is or will be obligated to give notice of any defects or
   irregularities in repurchase requests  tendered, nor shall any of them incur any
   liability for failure to give any such notice.


   Neither the Fund nor its Board of Trustees make any recommendation to any
   shareholder whether to tender or refrain from tendering Shares. Each shareholder
   must make an independent decision whether to tender Shares and, if so, how many
   Shares to tender.



   No person has been authorized to make any recommendation on behalf of the Fund
   whether shareholders should tender pursuant to this Repurchase Offer. No person has
   been authorized to give any information or to make any representations in
   connection with this Repurchase Offer other than those contained in this Repurchase
   Offer or in the Fund's Prospectus and Statement of Additional Information. If given
   or made, any such recommendations and such information must not be relied upon as
   having been authorized by the Fund, its investment advisor, Distributor, or
   Transfer Agent.



   For the Fund's current net asset values per share and other information about this
   Repurchase Offer, or for a copy of the Fund's Prospectus, call OppenheimerFunds
   Services at 1.800.225.5677 or contact your financial advisor.



   Dated:  July 2, 2007