EX-23

                                                      2












             Report of Independent Registered Public Accounting Firm



The Shareholders and Board of Trustees
Centennial Money Market Trust:


In planning and performing our audit of the financial statements of Centennial
Money Market Trust (the Trust) as of and for the year ended June 30, 2009, in
accordance with the standards of the Public Company Accounting Oversight Board
(United States), we considered the Trust's internal control over financial
reporting, including controls over safeguarding securities, as a basis for
designing our auditing procedures for the purpose of expressing our opinion on
the financial statements and to comply with the requirements of Form N-SAR, but
not for the purpose of expressing an opinion on the effectiveness of the Trust's
internal control over financial reporting. Accordingly, we express no such
opinion.

Management of the Trust is responsible for establishing and maintaining
effective internal control over financial reporting. In fulfilling this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of controls. A company's internal control
over financial reporting is a process designed to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with generally accepted
accounting principles. A company's internal control over financial reporting
includes those policies and procedures that (1) pertain to the maintenance of
records that, in reasonable detail, accurately and fairly reflect the
transactions and dispositions of the assets of the company; (2) provide
reasonable assurance that transactions are recorded as necessary to permit
preparation of financial statements in accordance with generally accepted
accounting principles, and that receipts and expenditures of the company are
being made only in accordance with authorizations of management and directors of
the company; and (3) provide reasonable assurance regarding prevention or timely
detection of unauthorized acquisition, use, or disposition of the company's
assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting
may not prevent or detect misstatements. Also, projections of any evaluation of
effectiveness to future periods are subject to the risk that controls may become
inadequate because of changes in conditions, or that the degree of compliance
with the policies or procedures may deteriorate.

A deficiency in internal control over financial reporting exists when the design
or operation of a control does not allow management or employees, in the normal
course of performing their assigned functions, to prevent or detect
misstatements on a timely basis. A material weakness is a deficiency, or a
combination of deficiencies, in internal control over financial reporting, such
that there is a reasonable possibility that a material misstatement of the
Trust's annual or interim financial statements will not be prevented or detected
on a timely basis.

Our consideration of the Trust's internal control over financial reporting was
for the limited purpose described in the first paragraph and would not
necessarily disclose all deficiencies in internal control that might be material
weaknesses under standards established by the Public Company Accounting
Oversight Board (United States). However, we noted no deficiencies in the
Trust's internal control over financial reporting and its operation, including
controls over safeguarding securities, that we consider to be a material
weakness as defined above as of June 30, 2009.

This report is intended solely for the information and use of management and the
Board of Trustees of Centennial Money Market Trust and the Securities and
Exchange Commission, and is not intended to be and should not be used by anyone
other than these specified parties.





                                    KPMG LLP



Denver, Colorado
August 13, 2009

EX-99.77E LEGAL

                                N-SAR EXHIBIT 77E


Pending Litigation. During 2009, a number of complaints have been filed in
federal courts against OppenheimerFunds, Inc. - the Manager's immediate parent
("OFI"), the Sub-Distributor, and certain funds in the Oppenheimer family of
funds (the "Defendant Funds") advised by OFI and distributed by the
Sub-Distributor - excluding the Fund. The complaints naming the Defendant Funds
also name certain officers, trustees and former trustees of the respective
Defendant Funds. The plaintiffs seek class action status on behalf of purchasers
of shares of the respective Defendant Fund during a particular time period. The
complaints against the Defendant Funds raise claims under federal securities
laws alleging that, among other things, the disclosure documents of the
respective Defendant Fund contained misrepresentations and omissions, that such
Defendant Fund's investment policies were not followed, and that such Defendant
Fund and the other defendants violated federal securities laws and regulations.
The plaintiffs seek unspecified damages, equitable relief and an award of
attorneys' fees and litigation expenses. Additionally, a complaint has been
brought in state court against OFI, the Sub-Distributor and another subsidiary
of OFI (but not the Fund), on behalf of the Oregon College Savings Plan Trust.
The complaint alleges breach of contract, breach of fiduciary duty, negligence
and violation of state securities laws, and seeks compensatory damages,
equitable relief and an award of attorneys' fees and litigation expenses.

         Other complaints have been filed in 2008 and 2009 in state and federal
courts, by investors who made investments through an affiliate of OFI, against
OFI and certain of its affiliates (other than the Manager). Those complaints
relate to the alleged investment fraud perpetrated by Bernard Madoff and his
firm ("Madoff") and allege a variety of claims including breach of fiduciary
duty, fraud, negligent misrepresentation, unjust enrichment, and violation of
federal and state securities laws and regulations, among others. They seek
unspecified damages, equitable relief, and an award of attorneys' fees and
litigation expenses. None of the suits have named the Manager, the Distributor,
the Sub-Distributor, any of the Oppenheimer or Centennial mutual funds or any of
their independent Trustees or Directors. None of the Oppenheimer or Centennial
funds invested in any funds or accounts managed by Madoff.

         OFI believes that the lawsuits described above are without legal merit
and intends to defend them vigorously. The Defendant Funds' Boards of Trustees
have also engaged counsel to defend the suits vigorously on behalf of those
Funds, their boards and the Trustees named in those suits. OFI believes that it
is premature to render any opinion as to the likelihood of an outcome
unfavorable to it and that no estimate can be made with any degree of certainty
as to the amount or range of any potential loss. OFI also believes that these
suits should not impair the ability of the Sub-Distributor to perform its duties
to the Fund.

EX-99

Net investment income (loss) and net realized gain (loss) may differ for
financial statement and tax purposes. The character of dividends and
distributions made during the fiscal year from net investment income or net
realized gains may differ from their ultimate characterization for federal
income tax purposes. Also, due to timing of dividends and distributions, the
fiscal year in which amounts are distributed may differ from the fiscal year in
which the income or net realized gain was recorded by the Trust. The tax
character of distributions paid during the years ended June 30, 2009 and June
30, 2008 was as follows:



                                                 Year Ended          Year Ended
                                              June 30, 2009       June 30, 2008
                                            -----------------------------------

Distributions paid from:
Ordinary income                                $ 24,980,037       $ 782,631,715
Long-term capital gain                                  129                  --
                                           ------------------------------------
Total                                           $24,980,166        $782,631,715