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<PAGE> PAGE 2
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<PAGE> PAGE 3
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SIGNATURE BRIAN W. WIXTED
TITLE TREASURER
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 312538
<NAME> Centennial Money Market Trust
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JUN-30-1999
<PERIOD-START> JUL-01-1998
<PERIOD-END> JUN-30-1999
<INVESTMENTS-AT-COST> 17,874,326,107
<INVESTMENTS-AT-VALUE> 17,874,326,107
<RECEIVABLES> 137,374,606
<ASSETS-OTHER> 761,042
<OTHER-ITEMS-ASSETS> 15,509,363
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<PAGE>
INDEPENDENT AUDITORS' REPORT
To the Board of Trustees of
Centennial Money Market Trust:
In planning and performing our audit of the financial statements of Centennial
Money Market Trust (the "Trust") for the year ended June 30, 1999 (on which we
have issued our report dated July 22, 1999), we considered its internal control,
including control activities for safeguarding securities, in order to determine
our auditing procedures for the purpose of expressing our opinion on the
financial statements and to comply with the requirements of Form N-SAR, and not
to provide assurance on the Trust's internal control.
The management of the Trust is responsible for establishing and maintaining
internal control. In fulfilling this responsibility, estimates and judgments by
management are required to assess the expected benefits and related costs of
controls. Generally, controls that are relevant to an audit pertain to the
entity's objective of preparing financial statements for external purposes that
are fairly presented in conformity with generally accepted accounting
principles. Those controls include the safeguarding of assets against
unauthorized acquisition, use, or disposition.
Because of inherent limitations in any internal control, error or fraud may
occur and not be detected. Also, projection of any evaluation of internal
control to future periods is subject to the risk that it may become inadequate
because of changes in conditions or that the effectiveness of the design and
operation may deteriorate.
Our consideration of internal control would not necessarily disclose all matters
in internal control that might be material weaknesses under standards
established by the American Institute of Certified Public Accountants. A
material weakness is a condition in which the design or operation of one or more
of the internal control components does not reduce to a relatively low level the
risk that misstatements due to error or fraud in amounts that would be material
in relation to the financial statements being audited may occur and not be
detected within a timely period by employees in the normal course of performing
their assigned functions. However, we noted no matters involving the Trust's
internal control and its operation, including controls for safeguarding
securities, that we consider to be material weaknesses as defined above as of
June 30, 1999.
This report is intended solely for the information and use of management, the
Board of Trustees, and the Securities and Exchange Commission and is not
intended to be and should not be used by anyone other than these specified
parties.
July 22, 1999
<PAGE>
Compensation of the Management Corporation
(a) The Fund agrees to pay the Management Corporation and the
Management Corporation agrees to accept as full compensation for all services
rendered by the Management Corporation as such, an annual fee payable monthly
and computed on the net asset value of the Fund as of the close of business each
day at the following annual rates:
.500% of the first $250 million of net assets; .475% of the next
$250 million of net assets; .450% of the next $250 million of net
assets; .425% of the next $250 million of net assets; .400% of
the next $250 million of net assets; .375% of the next $250
million of net assets; .350% of the next $250 million of net
assets; .325% of net assets in excess of $2 billion
