WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

 

<ARTICLE> 6
<CIK>                356865
<NAME>               Oppenheimer Disciplined Allocation - B Shares

   <NUMBER>          4
   <NAME>            Oppenheimer Series Fund, Inc.

                                                                   
<PERIOD-TYPE>                                                         6-MOS
<FISCAL-YEAR-END>                                                     OCT-31-2000
<PERIOD-START>                                                        NOV-01-1999
<PERIOD-END>                                                          APR-30-2000
<INVESTMENTS-AT-COST>                                                               179,794,609
<INVESTMENTS-AT-VALUE>                                                              179,521,652
<RECEIVABLES>                                                                         1,771,830
<ASSETS-OTHER>                                                                           18,793
<OTHER-ITEMS-ASSETS>                                                                          0
<TOTAL-ASSETS>                                                                      181,312,275
<PAYABLE-FOR-SECURITIES>                                                                641,893
<SENIOR-LONG-TERM-DEBT>                                                                       0
<OTHER-ITEMS-LIABILITIES>                                                               516,225
<TOTAL-LIABILITIES>                                                                   1,158,118
<SENIOR-EQUITY>                                                                               0
<PAID-IN-CAPITAL-COMMON>                                                            181,308,233
<SHARES-COMMON-STOCK>                                                                 1,344,347
<SHARES-COMMON-PRIOR>                                                                 1,547,260
<ACCUMULATED-NII-CURRENT>                                                               543,784
<OVERDISTRIBUTION-NII>                                                                        0
<ACCUMULATED-NET-GAINS>                                                                (699,261)
<OVERDISTRIBUTION-GAINS>                                                                      0
<ACCUM-APPREC-OR-DEPREC>                                                               (998,599)
<NET-ASSETS>                                                                         18,841,359
<DIVIDEND-INCOME>                                                                       987,939
<INTEREST-INCOME>                                                                     3,481,916
<OTHER-INCOME>                                                                                0
<EXPENSES-NET>                                                                        1,324,760
<NET-INVESTMENT-INCOME>                                                               3,145,095
<REALIZED-GAINS-CURRENT>                                                                905,207
<APPREC-INCREASE-CURRENT>                                                             2,182,204
<NET-CHANGE-FROM-OPS>                                                                 6,232,506
<EQUALIZATION>                                                                                0
<DISTRIBUTIONS-OF-INCOME>                                                               234,454
<DISTRIBUTIONS-OF-GAINS>                                                              2,228,824
<DISTRIBUTIONS-OTHER>                                                                         0
<NUMBER-OF-SHARES-SOLD>                                                                 134,082
<NUMBER-OF-SHARES-REDEEMED>                                                             510,778
<SHARES-REINVESTED>                                                                     173,783
<NET-CHANGE-IN-ASSETS>                                                             (107,245,708)
<ACCUMULATED-NII-PRIOR>                                                                 779,391
<ACCUMULATED-GAINS-PRIOR>                                                            25,841,491
<OVERDISTRIB-NII-PRIOR>                                                                       0
<OVERDIST-NET-GAINS-PRIOR>                                                                    0
<GROSS-ADVISORY-FEES>                                                                   688,271
<INTEREST-EXPENSE>                                                                            0
<GROSS-EXPENSE>                                                                       1,328,706
<AVERAGE-NET-ASSETS>                                                                 21,094,000
<PER-SHARE-NAV-BEGIN>                                                                     15.20
<PER-SHARE-NII>                                                                            0.15
<PER-SHARE-GAIN-APPREC>                                                                    0.31
<PER-SHARE-DIVIDEND>                                                                       0.16
<PER-SHARE-DISTRIBUTIONS>                                                                  1.48
<RETURNS-OF-CAPITAL>                                                                       0.00
<PER-SHARE-NAV-END>                                                                       14.02
<EXPENSE-RATIO>                                                                            1.88
[AVG-DEBT-OUTSTANDING]                                                                        0
[AVG-DEBT-PER-SHARE]                                                                       0.00