OPPENHEIMER SERIES FUND INC
NSAR-B, 1998-12-28
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<PAGE>      PAGE  1
000 B000000 10/31/98
000 C000000 356865
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0.a
000 J000000 A
001 A000000 OPPENHEIMER SERIES FUND, INC.
001 B000000 811-3346
001 C000000 2123230200
002 A000000 TWO WORLD TRADE CENTER
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10048
002 D020000 0203
003  000000 N
004  000000 N
005  000000 N
006  000000 N
007 A000000 Y
007 B000000  2
007 C010100  1
007 C010200  2
007 C010300  3
007 C010400  4
007 C020400 DISCIPLINED ALLOCATION FUND
007 C030400 N
007 C010500  5
007 C020500 DISCIPLINED VALUE FUND
007 C030500 N
007 C010600  6
007 C010700  7
007 C010800  8
007 C010900  9
007 C011000 10
007 C011100 11
007 C021100 LIFESPAN INCOME FUND
007 C031100 Y
007 C011200 12
007 C021200 LIFESPAN BALANCED FUND
007 C031200 Y
007 C011300 13
007 C021300 LIFESPAN GROWTH FUND
007 C031300 Y
007 C011400 14
007 C011500 15
007 C011600 16
007 C011700 17
007 C011800 18
<PAGE>      PAGE  2
007 C011900 19
007 C012000 20
008 A00AA01 OPPENHEIMERFUNDS, INC.
008 B00AA01 A
008 C00AA01 801-8253
008 D01AA01 NEW YORK
008 D02AA01 NY
008 D03AA01 10048
008 D04AA01 0203
008 A00AA02 DELETE
008 A00AA03 DELETE
008 A00AA04 DELETE
011 A00AA01 OPPENHEIMERFUNDS DISTRIBUTOR, INC.
011 B00AA01 8-22992
011 C01AA01 NEW YORK
011 C02AA01 NY
011 C03AA01 10048
011 C04AA01 0203
012 A00AA01 OPPENHEIMERFUNDS SERVICES
012 B00AA01 84-1562
012 C01AA01 ENGLEWOOD
012 C02AA01 CO
012 C03AA01 80112
013 A00AA01 KPMG PEAT MARWICK LLP
013 B01AA01 DENVER
013 B02AA01 CO
013 B03AA01 80202
015 A00AA01 THE BANK OF NEW YORK
015 B00AA01 C
015 C01AA01 NEW YORK
015 C02AA01 NY
015 C03AA01 10015
015 E01AA01 X
018  00AA00 Y
019 A00AA00 Y
019 B00AA00   46
019 C00AA00 OPPENHEIMR
020 A000001 MERRILL LYNCH, PIERCE, FENNER, & SMITH, INC.
020 B000001 13-5674085
020 C000001    343
020 A000002 BEAR SECURITIES CORP.
020 B000002 13-3299429
020 C000002    307
020 A000003 PAINEWEBBER, INC.
020 B000003 13-2638166
020 C000003    137
020 A000004 BERNSTEIN & CO., INC.
020 B000004 13-2625874
020 C000004    112
020 A000005 FIRST BOSTON CORP. (THE)
020 B000005 13-5659485
<PAGE>      PAGE  3
020 C000005     95
020 A000006 RBC DOMINION SECURITIES, INC.
020 B000006 FOREIGN
020 C000006     95
020 A000007 DONALDSON, LUFKIN & JENRETTE SECURITIES, CORP
020 B000007 13-2741729
020 C000007     83
020 A000008 LEHMAN BROTHERS, INC.
020 B000008 13-2518466
020 C000008     79
020 A000009 GOLDMAN, SACHS & CO.
020 B000009 13-5108880
020 C000009     77
020 A000010 MONTGOMERY SECURITIES
020 B000010 94-1701676
020 C000010     74
021  000000     2461
022 A000001 ZION FIRST NATIONAL BANK
022 B000001 87-0189025
022 C000001    554588
022 D000001     37290
022 A000002 PAINEWEBBER, INC.
022 B000002 13-2638166
022 C000002    238001
022 D000002     57164
022 A000003 GOLDMAN, SACHS & CO.
022 B000003 13-5108880
022 C000003    205573
022 D000003     46519
022 A000004 BEAR SECURITIES CORP.
022 B000004 13-3299429
022 C000004    172078
022 D000004     51954
022 A000005 LEHMAN BROTHERS, INC.
022 B000005 13-2518466
022 C000005    163390
022 D000005     43889
022 A000006 MERRILL LYNCH, PIERCE, FENNER, & SMITH, INC.
022 B000006 13-5674085
022 C000006    107210
022 D000006     99973
022 A000007 FIRST BOSTON CORP. (THE)
022 B000007 13-5659485
022 C000007    167572
022 D000007      3215
022 A000008 FIRST CHICAGO CAPITAL MARKET
022 B000008 36-3595942
022 C000008    124819
022 D000008         0
022 A000009 MORGAN GUARANTY TRUST CO.
022 B000009 13-5123346
<PAGE>      PAGE  4
022 C000009    123375
022 D000009         0
022 A000010 BANK OF AMERICA NT & SA
022 B000010 94-1687665
022 C000010     89472
022 D000010     12859
023 C000000    2630890
023 D000000     865318
024  00AA00 N
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054 F00AA00 N
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054 H00AA00 Y
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<PAGE>      PAGE  5
054 O00AA00 Y
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<PAGE>      PAGE  6
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<PAGE>      PAGE  7
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<PAGE>      PAGE  8
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<PAGE>      PAGE  9
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<PAGE>      PAGE  10
066 A000400 Y
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<PAGE>      PAGE  11
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<PAGE>      PAGE  12
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<PAGE>      PAGE  13
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<PAGE>      PAGE  14
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<PAGE>      PAGE  15
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
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<PAGE>      PAGE  18
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070 B011100 Y
070 B021100 N
070 C011100 Y
070 C021100 N
070 D011100 Y
<PAGE>      PAGE  19
070 D021100 N
070 E011100 Y
070 E021100 N
070 F011100 Y
070 F021100 N
070 G011100 Y
070 G021100 N
070 H011100 Y
070 H021100 N
070 I011100 N
070 I021100 N
070 J011100 Y
070 J021100 Y
070 K011100 Y
070 K021100 N
070 L011100 Y
070 L021100 N
070 M011100 Y
070 M021100 N
070 N011100 Y
070 N021100 N
070 O011100 Y
070 O021100 N
070 P011100 Y
070 P021100 N
070 Q011100 N
070 Q021100 N
070 R011100 N
070 R021100 N
071 A001100         0
071 B001100         0
071 C001100         0
071 D001100    0
072 A001100  7
072 B001100     1076
072 C001100      163
072 D001100        0
072 E001100        0
072 F001100      143
072 G001100        0
072 H001100        0
072 I001100        1
072 J001100        3
072 K001100        0
072 L001100        0
072 M001100        0
072 N001100       11
072 O001100        0
072 P001100        0
072 Q001100        0
072 R001100        0
<PAGE>      PAGE  20
072 S001100       28
072 T001100       52
072 U001100        0
072 V001100        0
072 W001100        2
072 X001100      240
072 Y001100        0
072 Z001100      999
072AA001100     2816
072BB001100      366
072CC011100        0
072CC021100     1556
072DD011100     1028
072DD021100       27
072EE001100     2853
073 A011100   0.3808
073 A021100   0.3406
073 B001100   1.0102
073 C001100   0.0000
074 A001100        0
074 B001100        0
074 C001100        0
074 D001100        0
074 E001100        0
074 F001100        0
074 G001100        0
074 H001100        0
074 I001100        0
074 J001100        0
074 K001100        0
074 L001100        0
074 M001100        0
074 N001100        0
074 O001100        0
074 P001100        0
074 Q001100        0
074 R011100        0
074 R021100        0
074 R031100        0
074 R041100        0
074 S001100        0
074 T001100        0
074 U011100        0
074 U021100        0
074 V011100     0.00
074 V021100     0.00
074 W001100   0.0000
074 X001100        0
074 Y001100        0
075 A001100        0
075 B001100        0
<PAGE>      PAGE  21
076  001100     0.00
028 A011200       131
028 A021200         0
028 A031200         0
028 A041200       369
028 B011200       186
028 B021200      7572
028 B031200         0
028 B041200      1573
028 C011200         0
028 C021200         0
028 C031200         0
028 C041200         0
028 D011200         0
028 D021200         0
028 D031200         0
028 D041200         0
028 E011200         0
028 E021200         0
028 E031200         0
028 E041200         0
028 F011200         0
028 F021200         0
028 F031200         0
028 F041200         0
028 G011200       317
028 G021200      7572
028 G031200         0
028 G041200      1942
028 H001200       213
029  001200 Y
030 A001200     42
030 B001200  5.75
030 C001200  0.00
031 A001200      8
031 B001200      0
032  001200     34
033  001200      0
034  001200 Y
035  001200      4
036 A001200 N
036 B001200      0
042 A001200   0
042 B001200   0
042 C001200   0
042 D001200 100
042 E001200   0
042 F001200   0
042 G001200   0
042 H001200   0
043  001200    137
<PAGE>      PAGE  22
044  001200      0
045  001200 Y
046  001200 N
047  001200 Y
048  001200  0.000
048 A011200   250000
048 A021200 0.850
048 B011200        0
048 B021200 0.000
048 C011200        0
048 C021200 0.000
048 D011200        0
048 D021200 0.000
048 E011200        0
048 E021200 0.000
048 F011200        0
048 F021200 0.000
048 G011200        0
048 G021200 0.000
048 H011200        0
048 H021200 0.000
048 I011200        0
048 I021200 0.000
048 J011200        0
048 J021200 0.000
048 K011200   250000
048 K021200 0.750
055 A001200 N
055 B001200 N
056  001200 N
057  001200 N
062 A001200 Y
062 B001200   0.0
062 C001200   0.0
062 D001200   0.0
062 E001200   0.0
062 F001200   0.0
062 G001200   0.0
062 H001200   0.0
062 I001200   0.0
062 J001200   0.0
062 K001200   0.0
062 L001200   0.0
062 M001200   0.0
062 N001200   2.0
062 O001200   0.0
062 P001200   0.0
062 Q001200   0.0
062 R001200   0.0
063 A001200   0
063 B001200  0.0
<PAGE>      PAGE  23
064 A001200 Y
064 B001200 Y
065  001200 N
066 A001200 Y
066 B001200 N
066 C001200 N
066 D001200 N
066 E001200 Y
066 F001200 N
066 G001200 N
067  001200 Y
068 A001200 N
068 B001200 N
069  001200 N
070 A011200 Y
070 A021200 Y
070 B011200 Y
070 B021200 N
070 C011200 Y
070 C021200 N
070 D011200 Y
070 D021200 N
070 E011200 Y
070 E021200 N
070 F011200 Y
070 F021200 N
070 G011200 Y
070 G021200 N
070 H011200 Y
070 H021200 N
070 I011200 N
070 I021200 N
070 J011200 Y
070 J021200 Y
070 K011200 Y
070 K021200 N
070 L011200 Y
070 L021200 Y
070 M011200 Y
070 M021200 Y
070 N011200 Y
070 N021200 N
070 O011200 Y
070 O021200 N
070 P011200 Y
070 P021200 N
070 Q011200 N
070 Q021200 N
070 R011200 N
070 R021200 N
071 A001200         0
<PAGE>      PAGE  24
071 B001200         0
071 C001200         0
071 D001200    0
072 A001200  7
072 B001200     1440
072 C001200      342
072 D001200        0
072 E001200        0
072 F001200      369
072 G001200        0
072 H001200        0
072 I001200       18
072 J001200       21
072 K001200        2
072 L001200       10
072 M001200       12
072 N001200        1
072 O001200        0
072 P001200        0
072 Q001200        0
072 R001200        0
072 S001200       28
072 T001200      137
072 U001200        0
072 V001200        0
072 W001200       23
072 X001200      621
072 Y001200        0
072 Z001200     1161
072AA001200    10690
072BB001200     3552
072CC011200        0
072CC021200     3623
072DD011200     1336
072DD021200       80
072EE001200    10396
073 A011200   0.2640
073 A021200   0.1964
073 B001200   1.8827
073 C001200   0.0000
074 A001200        0
074 B001200        0
074 C001200        0
074 D001200        0
074 E001200        0
074 F001200        0
074 G001200        0
074 H001200        0
074 I001200        0
074 J001200        0
074 K001200        0
<PAGE>      PAGE  25
074 L001200        0
074 M001200        0
074 N001200        0
074 O001200        0
074 P001200        0
074 Q001200        0
074 R011200        0
074 R021200        0
074 R031200        0
074 R041200        0
074 S001200        0
074 T001200        0
074 U011200        0
074 U021200        0
074 V011200     0.00
074 V021200     0.00
074 W001200   0.0000
074 X001200        0
074 Y001200        0
075 A001200        0
075 B001200        0
076  001200     0.00
028 A011300       205
028 A021300         0
028 A031300         0
028 A041300       409
028 B011300       168
028 B021300      8225
028 B031300         0
028 B041300       890
028 C011300         0
028 C021300         0
028 C031300         0
028 C041300         0
028 D011300         0
028 D021300         0
028 D031300         0
028 D041300         0
028 E011300         0
028 E021300         0
028 E031300         0
028 E041300         0
028 F011300         0
028 F021300         0
028 F031300         0
028 F041300         0
028 G011300       373
028 G021300      8225
028 G031300         0
028 G041300      1299
028 H001300      1117
<PAGE>      PAGE  26
029  001300 Y
030 A001300     56
030 B001300  5.75
030 C001300  0.00
031 A001300     10
031 B001300      0
032  001300     46
033  001300      0
034  001300 Y
035  001300      9
036 A001300 N
036 B001300      0
042 A001300   0
042 B001300   0
042 C001300   0
042 D001300 100
042 E001300   0
042 F001300   0
042 G001300   0
042 H001300   0
043  001300    132
044  001300      0
045  001300 Y
046  001300 N
047  001300 Y
048  001300  0.000
048 A011300   250000
048 A021300 0.850
048 B011300        0
048 B021300 0.000
048 C011300        0
048 C021300 0.000
048 D011300        0
048 D021300 0.000
048 E011300        0
048 E021300 0.000
048 F011300        0
048 F021300 0.000
048 G011300        0
048 G021300 0.000
048 H011300        0
048 H021300 0.000
048 I011300        0
048 I021300 0.000
048 J011300        0
048 J021300 0.000
048 K011300   250000
048 K021300 0.750
055 A001300 N
055 B001300 N
056  001300 N
<PAGE>      PAGE  27
057  001300 N
062 A001300 N
062 B001300   0.0
062 C001300   0.0
062 D001300   0.0
062 E001300   0.0
062 F001300   0.0
062 G001300   0.0
062 H001300   0.0
062 I001300   0.0
062 J001300   0.0
062 K001300   0.0
062 L001300   0.0
062 M001300   0.0
062 N001300   0.0
062 O001300   0.0
062 P001300   0.0
062 Q001300   0.0
062 R001300   0.0
063 A001300   0
063 B001300  0.0
066 A001300 Y
066 B001300 N
066 C001300 N
066 D001300 Y
066 E001300 N
066 F001300 N
066 G001300 N
067  001300 N
068 A001300 N
068 B001300 N
069  001300 N
070 A011300 Y
070 A021300 Y
070 B011300 Y
070 B021300 N
070 C011300 Y
070 C021300 N
070 D011300 Y
070 D021300 N
070 E011300 Y
070 E021300 N
070 F011300 Y
070 F021300 N
070 G011300 Y
070 G021300 N
070 H011300 Y
070 H021300 N
070 I011300 N
070 I021300 N
070 J011300 Y
<PAGE>      PAGE  28
070 J021300 Y
070 K011300 Y
070 K021300 N
070 L011300 Y
070 L021300 Y
070 M011300 Y
070 M021300 Y
070 N011300 Y
070 N021300 N
070 O011300 Y
070 O021300 N
070 P011300 Y
070 P021300 N
070 Q011300 N
070 Q021300 N
070 R011300 N
070 R021300 N
071 A001300         0
071 B001300         0
071 C001300         0
071 D001300    0
072 A001300  7
072 B001300      799
072 C001300      380
072 D001300        0
072 E001300        0
072 F001300      330
072 G001300        0
072 H001300        0
072 I001300       32
072 J001300       21
072 K001300        5
072 L001300       23
072 M001300       13
072 N001300        1
072 O001300        0
072 P001300        0
072 Q001300        0
072 R001300        1
072 S001300       24
072 T001300      132
072 U001300        0
072 V001300        0
072 W001300       21
072 X001300      603
072 Y001300        0
072 Z001300      576
072AA001300    11694
072BB001300     3924
072CC011300     3745
072CC021300        0
<PAGE>      PAGE  29
072DD011300     1383
072DD021300       92
072EE001300    11237
073 A011300   0.3475
073 A021300   0.2187
073 B001300   2.4429
073 C001300   0.0000
074 A001300        0
074 B001300        0
074 C001300        0
074 D001300        0
074 E001300        0
074 F001300        0
074 G001300        0
074 H001300        0
074 I001300        0
074 J001300        0
074 K001300        0
074 L001300        0
074 M001300        0
074 N001300        0
074 O001300        0
074 P001300        0
074 Q001300        0
074 R011300        0
074 R021300        0
074 R031300        0
074 R041300        0
074 S001300        0
074 T001300        0
074 U011300        0
074 U021300        0
074 V011300     0.00
074 V021300     0.00
074 W001300   0.0000
074 X001300        0
074 Y001300        0
075 A001300        0
075 B001300        0
076  001300     0.00
SIGNATURE   GEORGE C. BOWEN                              
TITLE       TREASURER           
 


Return of Capital


The Fund adjusts the  classification of distributions to shareholders to reflect
the differences between financial statement amounts and distributions determined
in accordance with income tax  regulations.  Accordingly,  during the year ended
October  31,  1998,  amounts  have been  reclassified  to reflect a decrease  in
additional  paid-in  capital  of  $21,580,  an  increase  in  undistributed  net
investment  income of $20,554,  and an increase in accumulated net realized gain
on investments of $1,026.



Return of Capital


The Fund adjusts the  classification  of  distributions  to  shareholders to
reflect   the   differences   between   financial   statement   amounts  and
distributions   determined  in  accordance  with  income  tax   regulations.
Accordingly,  during the year ended  October  31,  1998,  amounts  have been
reclassified to reflect a decrease in additional paid-in capital of $21,608,
an increase  in  undistributed  net  investment  income of  $14,185,  and an
increase in accumulated net realized gain on investments of $7,423.



Auditor Letter

The Board of Trustees and Shareholders of
Oppenheimer Disciplined Value Fund:


In planning and performing our audit of the financial  statements of Oppenheimer
Disciplined  Value Fund for the year ended October 31, 1998,  we considered  its
internal controls, including procedures 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, not
to provide assurance on internal controls.

The  management  of  Oppenheimer  Disciplined  Value  Fund  is  responsible  for
establishing   and   maintaining   internal   controls.   In   fulfilling   this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of internal control policies and procedures.
Two of the  objectives  of  internal  controls  are to provide  management  with
reasonable, but not absolute, assurance that assets are safeguarded against loss
from  unauthorized  use or  disposition  and that  transactions  are executed in
accordance  with  management's  authorization  and  recorded  properly to permit
preparation  of financial  statements  in  conformity  with  generally  accepted
accounting principles.

Because of inherent  limitations in internal controls,  errors may occur and may
not be detected.  Also,  projection of any  evaluation  of internal  controls to
future periods is subject to the risk that they may become inadequate because of
changes in conditions or that the  effectiveness of the design and operation may
deteriorate.

Our  consideration  of internal  controls  would not  necessarily  disclose  all
matters in internal  controls 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 specific
internal  control  elements  does not reduce to a relatively  low level the risk
that errors 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  internal  controls,  including  procedures  for
safeguarding securities, that we considered to be material weaknesses as defined
above as of October 31, 1998.

This report is intended solely for the information and use of management and the
Securities and Exchange Commission and should not be used for any other purpose.




KPMG Peat Marwick LLP


Denver, Colorado
November 20, 1998


Auditor Letter

The Board of Trustees and Shareholders of
Oppenheimer Disciplined Allocation Fund:


In planning and performing our audit of the financial  statements of Oppenheimer
Disciplined  Allocation  Fund for the year ended October 31, 1998, we considered
its internal  controls,  including  procedures 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, not to provide assurance on internal controls.

The management of Oppenheimer  Disciplined  Allocation  Fund is responsible  for
establishing   and   maintaining   internal   controls.   In   fulfilling   this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of internal control policies and procedures.
Two of the  objectives  of  internal  controls  are to provide  management  with
reasonable, but not absolute, assurance that assets are safeguarded against loss
from  unauthorized  use or  disposition  and that  transactions  are executed in
accordance  with  management's  authorization  and  recorded  properly to permit
preparation  of financial  statements  in  conformity  with  generally  accepted
accounting principles.

Because of inherent  limitations in internal controls,  errors may occur and may
not be detected. Also, projection of any evaluation to future periods is subject
to the risk that they may become inadequate  because of changes in conditions or
that the effectiveness of the design and operation may deteriorate.

Our  consideration of the internal  controls would not necessarily  disclose all
matters in internal  controls 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 specific
internal  control  elements  does not reduce to a relatively  low level the risk
that errors 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  internal  controls,  including  procedures  for
safeguarding securities, that we considered to be material weaknesses as defined
above as of October 31, 1998.

This report is intended solely for the information and use of management and the
Securities and Exchange Commission and should not be used for any other purpose.




KPMG Peat Marwick LLP


Denver, Colorado
November 20, 1998


Acquisition of Oppenheimer LifeSpan Income Fund by Oppenheimer Bond 
Fund

On June 12, 1998, the Fund acquired all the net assets of  Oppenheimer  LifeSpan
Income Fund, pursuant to an agreement and plan of reorganization approved by the
Oppenheimer LifeSpan Income Fund  shareholders on June 9, 1998. The Fund issued
(at an  exchange  ratio of  0.936419  for  Class A,  0.940145  for  Class B, and
0.939042  for Class C of the Fund to one share of  Oppenheimer  LifeSpan  Income
Fund) 2,792,886, 85,738 and  8,740 shares of capital stock for Class A, Class B
and Class C, respectively, valued at $30,889,321,  $947,405 and $96,665, in
exchange  for the net  assets,  resulting  in  combined  Class A net  assets  of
$230,808,283,  Class B net  assets of  $59,193,669 and  Class C net  assets of
$13,957,428  on June 12, 1998. The net assets  acquired  included net unrealized
depreciation of $514,326.  The exchange qualified as a tax-free reorganization
for federal income tax purposes.


Acquisition of Oppenheimer LifeSpan Income Fund by Oppenheimer Bond 
Fund

On June 12, 1998, the Fund acquired all the net assets of  Oppenheimer  LifeSpan
Income Fund, pursuant to an agreement and plan of reorganization approved by the
Oppenheimer LifeSpan Income Fund  shareholders on June 9, 1998. The Fund issued
(at an  exchange  ratio of  0.936419  for  Class A,  0.940145  for  Class B, and
0.939042  for Class C of the Fund to one share of  Oppenheimer  LifeSpan  Income
Fund) 2,792,886, 85,738 and  8,740 shares of capital stock for Class A, Class B
and Class C, respectively, valued at $30,889,321,  $947,405 and $96,665, in
exchange  for the net  assets,  resulting  in  combined  Class A net  assets  of
$230,808,283,  Class B net  assets of  $59,193,669 and  Class C net  assets of
$13,957,428  on June 12, 1998. The net assets  acquired  included net unrealized
depreciation of $514,326.  The exchange qualified as a tax-free reorganization
for federal income tax purposes.


Acquisition of Oppenheimer LifeSpan Balanced Fund by Oppenheimer Disciplined 
Allocation Fund

On June 12, 1998, the Fund acquired all the net assets of  Oppenheimer  LifeSpan
Balanced Fund,  pursuant to an agreement and plan of reorganization  approved by
the Oppenheimer  LifeSpan  Balanced Fund  shareholders on June 9, 1998. The Fund
issued (at an exchange  ratio of 0.711330 for Class A, 0.789560 for Class B, and
0.716167 for Class C of the Fund to one share of Oppenheimer  LifeSpan  Balanced
Fund) 4,023,572, 328,973 and 70,016 shares of capital stock for Class A, Class B
and Class C, respectively,  valued at $64,135,741,  $5,299,757 and $1,105,546 in
exchange  for the net  assets,  resulting  in  combined  Class A net  assets  of
$313,743,282,  Class B net  assets  of  $18,371,573  and  Class C net  assets of
$3,985,465 on June 12, 1998.  The net assets  acquired  included net  unrealized
appreciation of $3,969,222.  The exchange qualified as a tax-free reorganization
for federal income tax purposes.

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

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               Oppenheimer Disciplined Allocation - A Shares
<SERIES>                                                                 
   <NUMBER>          4
   <NAME>            Oppenheimer Series Fund, Inc.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            OCT-31-1998
<INVESTMENTS-AT-COST>                                                                 296,691,418
<INVESTMENTS-AT-VALUE>                                                                318,477,396
<RECEIVABLES>                                                                           8,505,921
<ASSETS-OTHER>                                                                              6,538
<OTHER-ITEMS-ASSETS>                                                                      119,647
<TOTAL-ASSETS>                                                                        327,109,502
<PAYABLE-FOR-SECURITIES>                                                                1,286,460
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 686,810
<TOTAL-LIABILITIES>                                                                     1,973,270
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              294,035,655
<SHARES-COMMON-STOCK>                                                                  19,323,008
<SHARES-COMMON-PRIOR>                                                                  14,469,482
<ACCUMULATED-NII-CURRENT>                                                                 986,365
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 4,944,552
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               25,169,660
<NET-ASSETS>                                                                          298,558,127
<DIVIDEND-INCOME>                                                                       1,929,206
<INTEREST-INCOME>                                                                       9,484,998
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          3,098,681
<NET-INVESTMENT-INCOME>                                                                 8,315,523
<REALIZED-GAINS-CURRENT>                                                                5,047,223
<APPREC-INCREASE-CURRENT>                                                                 234,047
<NET-CHANGE-FROM-OPS>                                                                  13,596,793
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               7,782,493
<DISTRIBUTIONS-OF-GAINS>                                                               26,053,041
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                 5,478,206
<NUMBER-OF-SHARES-REDEEMED>                                                             2,818,335
<SHARES-REINVESTED>                                                                     2,193,655
<NET-CHANGE-IN-ASSETS>                                                                 71,675,091
<ACCUMULATED-NII-PRIOR>                                                                   828,581
<ACCUMULATED-GAINS-PRIOR>                                                              27,121,937
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,774,240
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         3,098,681
<AVERAGE-NET-ASSETS>                                                                  268,714,805
<PER-SHARE-NAV-BEGIN>                                                                          16.81
<PER-SHARE-NII>                                                                                 0.45
<PER-SHARE-GAIN-APPREC>                                                                         0.45
<PER-SHARE-DIVIDEND>                                                                            0.45
<PER-SHARE-DISTRIBUTIONS>                                                                       1.81
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            15.45
<EXPENSE-RATIO>                                                                                 1.04
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               Oppenheimer Disciplined Allocation - B Shares
<SERIES>                                                                 
   <NUMBER>          4
   <NAME>            Oppenheimer Series Fund, Inc.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            OCT-31-1998
<INVESTMENTS-AT-COST>                                                                 296,691,418
<INVESTMENTS-AT-VALUE>                                                                318,477,396
<RECEIVABLES>                                                                           8,505,921
<ASSETS-OTHER>                                                                              6,538
<OTHER-ITEMS-ASSETS>                                                                      119,647
<TOTAL-ASSETS>                                                                        327,109,502
<PAYABLE-FOR-SECURITIES>                                                                1,286,460
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 686,810
<TOTAL-LIABILITIES>                                                                     1,973,270
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              294,035,655
<SHARES-COMMON-STOCK>                                                                   1,392,591
<SHARES-COMMON-PRIOR>                                                                     513,404
<ACCUMULATED-NII-CURRENT>                                                                 986,365
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 4,944,552
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               25,169,660
<NET-ASSETS>                                                                           21,753,878
<DIVIDEND-INCOME>                                                                       1,929,206
<INTEREST-INCOME>                                                                       9,484,998
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          3,098,681
<NET-INVESTMENT-INCOME>                                                                 8,315,523
<REALIZED-GAINS-CURRENT>                                                                5,047,223
<APPREC-INCREASE-CURRENT>                                                                 234,047
<NET-CHANGE-FROM-OPS>                                                                  13,596,793
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                 326,896
<DISTRIBUTIONS-OF-GAINS>                                                                1,001,059
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   918,096
<NUMBER-OF-SHARES-REDEEMED>                                                               123,259
<SHARES-REINVESTED>                                                                        84,350
<NET-CHANGE-IN-ASSETS>                                                                 71,675,091
<ACCUMULATED-NII-PRIOR>                                                                   828,581
<ACCUMULATED-GAINS-PRIOR>                                                              27,121,937
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,774,240
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         3,098,681
<AVERAGE-NET-ASSETS>                                                                   14,234,941
<PER-SHARE-NAV-BEGIN>                                                                          16.99
<PER-SHARE-NII>                                                                                 0.36
<PER-SHARE-GAIN-APPREC>                                                                         0.43
<PER-SHARE-DIVIDEND>                                                                            0.35
<PER-SHARE-DISTRIBUTIONS>                                                                       1.81
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            15.62
<EXPENSE-RATIO>                                                                                 1.80
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               Oppenheimer Disciplined Allocation - C Shares
<SERIES>                                                                 
   <NUMBER>          4
   <NAME>            Oppenheimer Series Fund, Inc.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            OCT-31-1998
<INVESTMENTS-AT-COST>                                                                 296,691,418
<INVESTMENTS-AT-VALUE>                                                                318,477,396
<RECEIVABLES>                                                                           8,505,921
<ASSETS-OTHER>                                                                              6,538
<OTHER-ITEMS-ASSETS>                                                                      119,647
<TOTAL-ASSETS>                                                                        327,109,502
<PAYABLE-FOR-SECURITIES>                                                                1,286,460
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 686,810
<TOTAL-LIABILITIES>                                                                     1,973,270
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              294,035,655
<SHARES-COMMON-STOCK>                                                                     315,163
<SHARES-COMMON-PRIOR>                                                                      88,237
<ACCUMULATED-NII-CURRENT>                                                                 986,365
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 4,944,552
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               25,169,660
<NET-ASSETS>                                                                            4,824,227
<DIVIDEND-INCOME>                                                                       1,929,206
<INTEREST-INCOME>                                                                       9,484,998
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          3,098,681
<NET-INVESTMENT-INCOME>                                                                 8,315,523
<REALIZED-GAINS-CURRENT>                                                                5,047,223
<APPREC-INCREASE-CURRENT>                                                                 234,047
<NET-CHANGE-FROM-OPS>                                                                  13,596,793
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  68,904
<DISTRIBUTIONS-OF-GAINS>                                                                  171,534
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   263,685
<NUMBER-OF-SHARES-REDEEMED>                                                                51,932
<SHARES-REINVESTED>                                                                        15,173
<NET-CHANGE-IN-ASSETS>                                                                 71,675,091
<ACCUMULATED-NII-PRIOR>                                                                   828,581
<ACCUMULATED-GAINS-PRIOR>                                                              27,121,937
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,774,240
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         3,098,681
<AVERAGE-NET-ASSETS>                                                                    2,860,677
<PER-SHARE-NAV-BEGIN>                                                                          16.70
<PER-SHARE-NII>                                                                                 0.37
<PER-SHARE-GAIN-APPREC>                                                                         0.40
<PER-SHARE-DIVIDEND>                                                                            0.35
<PER-SHARE-DISTRIBUTIONS>                                                                       1.81
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            15.31
<EXPENSE-RATIO>                                                                                 1.80
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN INCOME FUND-A
<SERIES>                                                                 
   <NUMBER>          11
   <NAME>            Oppenheimer Series Fund, Inc.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                   2,639,654
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         162,459
<INTEREST-INCOME>                                                                       1,076,302
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            240,205
<NET-INVESTMENT-INCOME>                                                                   998,556
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   1,892,305
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               1,027,561
<DISTRIBUTIONS-OF-GAINS>                                                                2,761,044
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    31,840
<NUMBER-OF-SHARES-REDEEMED>                                                                36,027
<SHARES-REINVESTED>                                                                       125,038
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     142,614
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           240,205
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          11.06
<PER-SHARE-NII>                                                                                 0.35
<PER-SHARE-GAIN-APPREC>                                                                         0.86
<PER-SHARE-DIVIDEND>                                                                            0.37
<PER-SHARE-DISTRIBUTIONS>                                                                       1.86
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN INCOME FUND-B
<SERIES>                                                                 
   <NUMBER>          11
   <NAME>            Oppenheimer Series Fund, Inc.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                      73,513
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         162,459
<INTEREST-INCOME>                                                                       1,076,302
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            240,205
<NET-INVESTMENT-INCOME>                                                                   998,556
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   1,892,305
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  27,404
<DISTRIBUTIONS-OF-GAINS>                                                                   84,142
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    15,724
<NUMBER-OF-SHARES-REDEEMED>                                                                 8,267
<SHARES-REINVESTED>                                                                         3,340
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     142,614
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           240,205
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          11.11
<PER-SHARE-NII>                                                                                 0.30
<PER-SHARE-GAIN-APPREC>                                                                         0.03
<PER-SHARE-DIVIDEND>                                                                            0.01
<PER-SHARE-DISTRIBUTIONS>                                                                       0.06
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN INCOME FUND-C
<SERIES>                                                                 
   <NUMBER>          11
   <NAME>            Oppenheimer Series Fund, Inc.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                       2,893
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         162,459
<INTEREST-INCOME>                                                                       1,076,302
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            240,205
<NET-INVESTMENT-INCOME>                                                                   998,556
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   1,892,305
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                   2,109
<DISTRIBUTIONS-OF-GAINS>                                                                    7,827
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                     6,687
<NUMBER-OF-SHARES-REDEEMED>                                                                 1,212
<SHARES-REINVESTED>                                                                           210
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     142,614
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           240,205
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          11.10
<PER-SHARE-NII>                                                                                 0.22
<PER-SHARE-GAIN-APPREC>                                                                         0.00
<PER-SHARE-DIVIDEND>                                                                            0.00
<PER-SHARE-DISTRIBUTIONS>                                                                       0.01
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN BALANCED FUND - A
<SERIES>                                                                 
   <NUMBER>          12
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                   4,919,634
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         406,719
<INTEREST-INCOME>                                                                       1,439,936
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            621,366
<NET-INVESTMENT-INCOME>                                                                 1,160,524
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   4,676,204
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               1,336,033
<DISTRIBUTIONS-OF-GAINS>                                                                9,479,915
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   135,503
<NUMBER-OF-SHARES-REDEEMED>                                                               274,720
<SHARES-REINVESTED>                                                                       318,934
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     369,321
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           621,366
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          12.66
<PER-SHARE-NII>                                                                                 0.21
<PER-SHARE-GAIN-APPREC>                                                                         1.28
<PER-SHARE-DIVIDEND>                                                                            0.26
<PER-SHARE-DISTRIBUTIONS>                                                                       1.86
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN BALANCED FUND - B
<SERIES>                                                                 
   <NUMBER>          12
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                     374,239
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         406,719
<INTEREST-INCOME>                                                                       1,439,936
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            621,366
<NET-INVESTMENT-INCOME>                                                                 1,160,524
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   4,676,204
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  79,652
<DISTRIBUTIONS-OF-GAINS>                                                                  766,854
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    66,509
<NUMBER-OF-SHARES-REDEEMED>                                                                46,201
<SHARES-REINVESTED>                                                                        22,568
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     369,321
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           621,366
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          12.72
<PER-SHARE-NII>                                                                                 0.15
<PER-SHARE-GAIN-APPREC>                                                                         1.27
<PER-SHARE-DIVIDEND>                                                                            0.19
<PER-SHARE-DISTRIBUTIONS>                                                                       1.84
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN BALANCED FUND - C
<SERIES>                                                                 
   <NUMBER>          12
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                      54,094
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         406,719
<INTEREST-INCOME>                                                                       1,439,936
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            621,366
<NET-INVESTMENT-INCOME>                                                                 1,160,524
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   4,676,204
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  15,928
<DISTRIBUTIONS-OF-GAINS>                                                                  148,737
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    40,786
<NUMBER-OF-SHARES-REDEEMED>                                                                11,055
<SHARES-REINVESTED>                                                                         3,887
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     369,321
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           621,366
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          12.62
<PER-SHARE-NII>                                                                                 0.13
<PER-SHARE-GAIN-APPREC>                                                                         1.25
<PER-SHARE-DIVIDEND>                                                                            0.18
<PER-SHARE-DISTRIBUTIONS>                                                                       1.70
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN GROWTH-A
<SERIES>                                                                 
   <NUMBER>          13
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                   3,900,030
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         452,996
<INTEREST-INCOME>                                                                         799,448
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            603,163
<NET-INVESTMENT-INCOME>                                                                   575,659
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   4,600,621
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               1,383,015
<DISTRIBUTIONS-OF-GAINS>                                                                9,905,764
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   210,184
<NUMBER-OF-SHARES-REDEEMED>                                                               299,365
<SHARES-REINVESTED>                                                                       313,552
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     330,480
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           603,163
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          13.67
<PER-SHARE-NII>                                                                                 0.13
<PER-SHARE-GAIN-APPREC>                                                                         1.66
<PER-SHARE-DIVIDEND>                                                                            0.34
<PER-SHARE-DISTRIBUTIONS>                                                                       2.40
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN GROWTH-B
<SERIES>                                                                 
   <NUMBER>          13
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                     395,745
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         452,996
<INTEREST-INCOME>                                                                         799,488
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            603,163
<NET-INVESTMENT-INCOME>                                                                   575,659
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   4,600,621
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  92,208
<DISTRIBUTIONS-OF-GAINS>                                                                1,066,952
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    97,203
<NUMBER-OF-SHARES-REDEEMED>                                                                73,364
<SHARES-REINVESTED>                                                                        30,143
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     330,480
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           603,163
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          13.62
<PER-SHARE-NII>                                                                                 0.07
<PER-SHARE-GAIN-APPREC>                                                                         1.67
<PER-SHARE-DIVIDEND>                                                                            0.21
<PER-SHARE-DISTRIBUTIONS>                                                                       2.37
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER LIFESPAN GROWTH-C
<SERIES>                                                                 
   <NUMBER>          13
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           7-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            JUN-11-1998
<INVESTMENTS-AT-COST>                                                                           0
<INVESTMENTS-AT-VALUE>                                                                          0
<RECEIVABLES>                                                                                   0
<ASSETS-OTHER>                                                                                  0
<OTHER-ITEMS-ASSETS>                                                                            0
<TOTAL-ASSETS>                                                                                  0
<PAYABLE-FOR-SECURITIES>                                                                        0
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                       0
<TOTAL-LIABILITIES>                                                                             0
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                                        0
<SHARES-COMMON-STOCK>                                                                           0
<SHARES-COMMON-PRIOR>                                                                      89,402
<ACCUMULATED-NII-CURRENT>                                                                       0
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                         0
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                        0
<NET-ASSETS>                                                                                    0
<DIVIDEND-INCOME>                                                                         452,996
<INTEREST-INCOME>                                                                         799,448
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            603,163
<NET-INVESTMENT-INCOME>                                                                   575,659
<REALIZED-GAINS-CURRENT>                                                                        0
<APPREC-INCREASE-CURRENT>                                                                       0
<NET-CHANGE-FROM-OPS>                                                                   4,600,621
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  22,990
<DISTRIBUTIONS-OF-GAINS>                                                                  263,863
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    36,722
<NUMBER-OF-SHARES-REDEEMED>                                                               283,557
<SHARES-REINVESTED>                                                                         7,224
<NET-CHANGE-IN-ASSETS>                                                                          0
<ACCUMULATED-NII-PRIOR>                                                                         0
<ACCUMULATED-GAINS-PRIOR>                                                                       0
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     330,480
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           603,163
<AVERAGE-NET-ASSETS>                                                                            0
<PER-SHARE-NAV-BEGIN>                                                                          13.53
<PER-SHARE-NII>                                                                                 0.07
<PER-SHARE-GAIN-APPREC>                                                                         1.63
<PER-SHARE-DIVIDEND>                                                                            0.21
<PER-SHARE-DISTRIBUTIONS>                                                                       2.35
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                             0.00
<EXPENSE-RATIO>                                                                                 0.00
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER DISCIPLINED VALUE- A
<SERIES>                                                                 
   <NUMBER>          5
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            OCT-31-1998
<INVESTMENTS-AT-COST>                                                                 659,561,884
<INVESTMENTS-AT-VALUE>                                                                717,723,143
<RECEIVABLES>                                                                          21,600,908
<ASSETS-OTHER>                                                                             16,729
<OTHER-ITEMS-ASSETS>                                                                       81,753
<TOTAL-ASSETS>                                                                        739,422,533
<PAYABLE-FOR-SECURITIES>                                                                4,073,944
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 891,394
<TOTAL-LIABILITIES>                                                                     4,965,338
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              642,503,974
<SHARES-COMMON-STOCK>                                                                  21,816,729
<SHARES-COMMON-PRIOR>                                                                  15,948,062
<ACCUMULATED-NII-CURRENT>                                                               5,144,211
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                28,647,751
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               58,161,259
<NET-ASSETS>                                                                          456,263,913
<DIVIDEND-INCOME>                                                                       7,861,416
<INTEREST-INCOME>                                                                       4,555,195
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          7,223,760
<NET-INVESTMENT-INCOME>                                                                 5,192,851
<REALIZED-GAINS-CURRENT>                                                               28,715,807
<APPREC-INCREASE-CURRENT>                                                             (34,730,525)
<NET-CHANGE-FROM-OPS>                                                                    (821,867)
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               2,053,090
<DISTRIBUTIONS-OF-GAINS>                                                               44,818,463
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                 8,519,331
<NUMBER-OF-SHARES-REDEEMED>                                                             4,594,504
<SHARES-REINVESTED>                                                                     1,943,840
<NET-CHANGE-IN-ASSETS>                                                                178,120,203
<ACCUMULATED-NII-PRIOR>                                                                 2,934,887
<ACCUMULATED-GAINS-PRIOR>                                                              67,567,211
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   3,658,650
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         7,223,760
<AVERAGE-NET-ASSETS>                                                                  442,138,175
<PER-SHARE-NAV-BEGIN>                                                                          23.31
<PER-SHARE-NII>                                                                                 0.16
<PER-SHARE-GAIN-APPREC>                                                                         0.32
<PER-SHARE-DIVIDEND>                                                                            0.12
<PER-SHARE-DISTRIBUTIONS>                                                                       2.76
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            20.91
<EXPENSE-RATIO>                                                                                 0.98
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER DISCIPLINED VALUE- B
<SERIES>                                                                 
   <NUMBER>          5
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            OCT-31-1998
<INVESTMENTS-AT-COST>                                                                 659,561,884
<INVESTMENTS-AT-VALUE>                                                                717,723,143
<RECEIVABLES>                                                                          21,600,908
<ASSETS-OTHER>                                                                             16,729
<OTHER-ITEMS-ASSETS>                                                                       81,753
<TOTAL-ASSETS>                                                                        739,422,533
<PAYABLE-FOR-SECURITIES>                                                                4,073,944
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 891,394
<TOTAL-LIABILITIES>                                                                     4,965,338
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              642,503,974
<SHARES-COMMON-STOCK>                                                                   5,917,043
<SHARES-COMMON-PRIOR>                                                                   3,572,324
<ACCUMULATED-NII-CURRENT>                                                               5,144,211
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                28,647,751
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               58,161,259
<NET-ASSETS>                                                                          123,259,656
<DIVIDEND-INCOME>                                                                       7,861,416
<INTEREST-INCOME>                                                                       4,555,195
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          7,223,760
<NET-INVESTMENT-INCOME>                                                                 5,192,851
<REALIZED-GAINS-CURRENT>                                                               28,715,807
<APPREC-INCREASE-CURRENT>                                                             (34,730,525)
<NET-CHANGE-FROM-OPS>                                                                    (821,867)
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                 205,567
<DISTRIBUTIONS-OF-GAINS>                                                               10,405,845
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                 3,044,068
<NUMBER-OF-SHARES-REDEEMED>                                                             1,187,193
<SHARES-REINVESTED>                                                                       487,844
<NET-CHANGE-IN-ASSETS>                                                                178,120,203
<ACCUMULATED-NII-PRIOR>                                                                 2,934,887
<ACCUMULATED-GAINS-PRIOR>                                                              67,567,211
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   3,658,650
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         7,223,760
<AVERAGE-NET-ASSETS>                                                                  110,240,080
<PER-SHARE-NAV-BEGIN>                                                                          23.32
<PER-SHARE-NII>                                                                                 0.02
<PER-SHARE-GAIN-APPREC>                                                                         0.30
<PER-SHARE-DIVIDEND>                                                                            0.05
<PER-SHARE-DISTRIBUTIONS>                                                                       2.76
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            20.83
<EXPENSE-RATIO>                                                                                 1.73
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>
WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER DISCIPLINED VALUE- C
<SERIES>                                                                 
   <NUMBER>          5
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            OCT-31-1998
<INVESTMENTS-AT-COST>                                                                 659,561,884
<INVESTMENTS-AT-VALUE>                                                                717,723,143
<RECEIVABLES>                                                                          21,600,908
<ASSETS-OTHER>                                                                             16,729
<OTHER-ITEMS-ASSETS>                                                                       81,753
<TOTAL-ASSETS>                                                                        739,422,533
<PAYABLE-FOR-SECURITIES>                                                                4,073,944
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 891,394
<TOTAL-LIABILITIES>                                                                     4,965,338
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              642,503,974
<SHARES-COMMON-STOCK>                                                                     883,681
<SHARES-COMMON-PRIOR>                                                                     444,018
<ACCUMULATED-NII-CURRENT>                                                               5,144,211
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                28,647,751
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               58,161,259
<NET-ASSETS>                                                                           18,204,294
<DIVIDEND-INCOME>                                                                       7,861,416
<INTEREST-INCOME>                                                                       4,555,195
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          7,223,760
<NET-INVESTMENT-INCOME>                                                                 5,192,851
<REALIZED-GAINS-CURRENT>                                                               28,715,807
<APPREC-INCREASE-CURRENT>                                                             (34,730,525)
<NET-CHANGE-FROM-OPS>                                                                    (821,867)
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  16,094
<DISTRIBUTIONS-OF-GAINS>                                                                1,243,556
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   599,263
<NUMBER-OF-SHARES-REDEEMED>                                                               218,753
<SHARES-REINVESTED>                                                                        59,153
<NET-CHANGE-IN-ASSETS>                                                                178,120,203
<ACCUMULATED-NII-PRIOR>                                                                 2,934,887
<ACCUMULATED-GAINS-PRIOR>                                                              67,567,211
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   3,658,650
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         7,223,760
<AVERAGE-NET-ASSETS>                                                                   15,355,415
<PER-SHARE-NAV-BEGIN>                                                                          23.07
<PER-SHARE-NII>                                                                                 0.01
<PER-SHARE-GAIN-APPREC>                                                                         0.31
<PER-SHARE-DIVIDEND>                                                                            0.03
<PER-SHARE-DISTRIBUTIONS>                                                                       2.76
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            20.60
<EXPENSE-RATIO>                                                                                 1.73
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>

<TABLE> <S> <C>

<ARTICLE> 6                       
<CIK>                356865
<NAME>               OPPENHEIMER DISCIPLINED VALUE- Y
<SERIES>                                                                 
   <NUMBER>          5
   <NAME>            OPPENHEIMER SERIES FUND, INC.
       
<S>                                                                     <C>
<PERIOD-TYPE>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1998
<PERIOD-START>                                                          NOV-01-1997
<PERIOD-END>                                                            OCT-31-1998
<INVESTMENTS-AT-COST>                                                                 659,561,884
<INVESTMENTS-AT-VALUE>                                                                717,723,143
<RECEIVABLES>                                                                          21,600,908
<ASSETS-OTHER>                                                                             16,729
<OTHER-ITEMS-ASSETS>                                                                       81,753
<TOTAL-ASSETS>                                                                        739,422,533
<PAYABLE-FOR-SECURITIES>                                                                4,073,944
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 891,394
<TOTAL-LIABILITIES>                                                                     4,965,338
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              642,503,974
<SHARES-COMMON-STOCK>                                                                   6,521,712
<SHARES-COMMON-PRIOR>                                                                   3,898,705
<ACCUMULATED-NII-CURRENT>                                                               5,144,211
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                28,647,751
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               58,161,259
<NET-ASSETS>                                                                          136,729,332
<DIVIDEND-INCOME>                                                                       7,861,416
<INTEREST-INCOME>                                                                       4,555,195
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          7,223,760
<NET-INVESTMENT-INCOME>                                                                 5,192,851
<REALIZED-GAINS-CURRENT>                                                               28,715,807
<APPREC-INCREASE-CURRENT>                                                             (34,730,525)
<NET-CHANGE-FROM-OPS>                                                                    (821,867)
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                 722,961
<DISTRIBUTIONS-OF-GAINS>                                                               11,174,826
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                 3,047,435
<NUMBER-OF-SHARES-REDEEMED>                                                             1,000,402
<SHARES-REINVESTED>                                                                       575,974
<NET-CHANGE-IN-ASSETS>                                                                178,120,203
<ACCUMULATED-NII-PRIOR>                                                                 2,934,887
<ACCUMULATED-GAINS-PRIOR>                                                              67,567,211
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   3,658,650
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         7,223,760
<AVERAGE-NET-ASSETS>                                                                  118,010,113
<PER-SHARE-NAV-BEGIN>                                                                          23.34
<PER-SHARE-NII>                                                                                 0.22
<PER-SHARE-GAIN-APPREC>                                                                         0.34
<PER-SHARE-DIVIDEND>                                                                            0.17
<PER-SHARE-DISTRIBUTIONS>                                                                       2.76
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            20.97
<EXPENSE-RATIO>                                                                                 0.62
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>


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