WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000856517
<NAME> Money Market Obligations Trust
<SERIES>
<NUMBER> 022
<NAME> Prime Obligations Fund - Institutional Service Shares
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JUL-31-2000
<PERIOD-END> Jul-31-2000
<INVESTMENTS-AT-COST> 10,833,215,414
<INVESTMENTS-AT-VALUE> 10,833,215,414
<RECEIVABLES> 0
<ASSETS-OTHER> 0
<OTHER-ITEMS-ASSETS> 77,226,746
<TOTAL-ASSETS> 10,910,442,160
<PAYABLE-FOR-SECURITIES> 0
<SENIOR-LONG-TERM-DEBT> 0
<OTHER-ITEMS-LIABILITIES> 37,146,815
<TOTAL-LIABILITIES> 37,146,815
<SENIOR-EQUITY> 0
<PAID-IN-CAPITAL-COMMON> 10,873,295,345
<SHARES-COMMON-STOCK> 4,242,371,651
<SHARES-COMMON-PRIOR> 4,215,509,733
<ACCUMULATED-NII-CURRENT> 0
<OVERDISTRIBUTION-NII> 0
<ACCUMULATED-NET-GAINS> 0
<OVERDISTRIBUTION-GAINS> 0
<ACCUM-APPREC-OR-DEPREC> 0
<NET-ASSETS> 4,242,371,651
<DIVIDEND-INCOME> 0
<INTEREST-INCOME> 622,294,900
<OTHER-INCOME> 0
<EXPENSES-NET> (31,615,948)
<NET-INVESTMENT-INCOME> 590,678,952
<REALIZED-GAINS-CURRENT> 0
<APPREC-INCREASE-CURRENT> 0
<NET-CHANGE-FROM-OPS> 590,678,952
<EQUALIZATION> 0
<DISTRIBUTIONS-OF-INCOME> (225,790,462)
<DISTRIBUTIONS-OF-GAINS> 0
<DISTRIBUTIONS-OTHER> 0
<NUMBER-OF-SHARES-SOLD> 32,636,436,118
<NUMBER-OF-SHARES-REDEEMED> (32,675,755,080)
<SHARES-REINVESTED> 66,180,880
<NET-CHANGE-IN-ASSETS> 1,472,337,891
<ACCUMULATED-NII-PRIOR> 0
<ACCUMULATED-GAINS-PRIOR> 0
<OVERDISTRIB-NII-PRIOR> 0
<OVERDIST-NET-GAINS-PRIOR> 0
<GROSS-ADVISORY-FEES> 20,887,196
<INTEREST-EXPENSE> 0
<GROSS-EXPENSE> 57,253,243
<AVERAGE-NET-ASSETS> 4,017,694,494
<PER-SHARE-NAV-BEGIN> 1.000
<PER-SHARE-NII> 0.050
<PER-SHARE-GAIN-APPREC> 0.000
<PER-SHARE-DIVIDEND> (0.050)
<PER-SHARE-DISTRIBUTIONS> 0.000
<RETURNS-OF-CAPITAL> 0.000
<PER-SHARE-NAV-END> 1.000
<EXPENSE-RATIO> 0.45
[AVG-DEBT-OUTSTANDING] 0
[AVG-DEBT-PER-SHARE] 0.000
</TABLE>