OPPENHEIMER SERIES FUND INC
NSAR-B, 1997-12-30
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<PAGE>      PAGE  1
000 B000000 10/31/97
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  5
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 N
007 C011200 12
007 C021200 LIFESPAN BALANCED FUND
007 C031200 N
007 C011300 13
007 C021300 LIFESPAN GROWTH FUND
007 C031300 N
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 PILGRIM BAXTER & ASSOCIATES, LTD.
008 B00AA02 S
008 C00AA02 801-48872
008 D01AA02 WAYNE
008 D02AA02 PA
008 D03AA02 19087
008 A00AA03 BEA ASSOCIATES
008 B00AA03 S
008 C00AA03 801-37170
008 D01AA03 NEW YORK
008 D02AA03 NY
008 D03AA03 10020
008 A00AA04 BABSON-STEWART IVORY INTERNATIONAL
008 B00AA04 S
008 C00AA04 801-30247
008 D01AA04 CAMBRIDGE
008 D02AA04 MA
008 D03AA04 02142
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 DENVER
012 C02AA01 CO
012 C03AA01 80217
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   49
<PAGE>      PAGE  3
019 C00AA00 OPPENHEIMR
020 A000001 MERRILL LYNCH, PIERCE, FENNER, & SMITH, INC.
020 B000001 13-5674085
020 C000001    185
020 A000002 BEAR STEARNS SECURITIES CORP.
020 B000002 13-3299429
020 C000002    156
020 A000003 PAINEWEBBER, INC.
020 B000003 13-2638166
020 C000003     82
020 A000004 BERNSTEIN (SANFORD C.) & CO.,INC.
020 B000004 13-2625874
020 C000004     61
020 A000005 AUTRANET, INC.
020 B000005 13-2961507
020 C000005     58
020 A000006 SMITH BARNEY, HARRIS UPHAM & CO., INC.
020 B000006 13-3371860
020 C000006     47
020 A000007 BROWN BROTHERS HARRIMAN
020 B000007 13-4973745
020 C000007     45
020 A000008 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
020 B000008 13-2741729
020 C000008     44
020 A000009 RBC DOMINION SECURITIES, INC.
020 B000009 FOREIGN
020 C000009     42
020 A000010 GOLDMAN, SACHS & CO.
020 B000010 13-5108880
020 C000010     42
021  000000     1448
022 A000001 ZION FIRST NATIONAL BANK
022 B000001 87-0189025
022 C000001   2555522
022 D000001      5989
022 A000002 MERRILL LYNCH, PIERCE, FENNER & SMITH, INC.
022 B000002 13-5674085
022 C000002    101684
022 D000002     35950
022 A000003 PAINEWEBBER, INC.
022 B000003 13-2638166
022 C000003     86634
022 D000003     40051
022 A000004 BEAR STEARNS SECURITIES CORP.
022 B000004 13-3299429
022 C000004     57846
022 D000004     54040
022 A000005 MORGAN STANLEY & CO., INC.
022 B000005 13-2655998
022 C000005     44793
<PAGE>      PAGE  4
022 D000005     11377
022 A000006 AUTRANET, INC.
022 B000006 13-2961507
022 C000006     19070
022 D000006     22367
022 A000007 BERNSTEIN (SANFORD C) & CO., INC.
022 B000007 13-2625874
022 C000007     30606
022 D000007      9806
022 A000008 FIRST CHICAGO CAPITAL MARKET
022 B000008 36-3595942
022 C000008     39034
022 D000008         0
022 A000009 MORGAN GUARANTY TRUST CO.
022 B000009 13-5123346
022 C000009     38896
022 D000009         0
022 A000010 FIRST BOSTON CORP. (THE)
022 B000010 13-5659485
022 C000010     33673
022 D000010      4740
023 C000000    3387221
023 D000000     453724
024  00AA00 N
025 D00AA01       0
025 D00AA02       0
025 D00AA03       0
025 D00AA04       0
025 D00AA05       0
025 D00AA06       0
025 D00AA07       0
025 D00AA08       0
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 N
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027  000000 Y
037  00AA00 N
038  00AA00      0
039  00AA00 N
040  00AA00 Y
041  00AA00 Y
049  00AA00 N
050  00AA00 N
051  00AA00 N
052  00AA00 N
<PAGE>      PAGE  5
053 A00AA00 N
054 A00AA00 Y
054 B00AA00 Y
054 C00AA00 Y
054 D00AA00 N
054 E00AA00 N
054 F00AA00 N
054 G00AA00 Y
054 H00AA00 Y
054 I00AA00 N
054 J00AA00 Y
054 K00AA00 N
054 L00AA00 Y
054 M00AA00 Y
054 N00AA00 N
054 O00AA00 Y
058 A00AA00 N
059  00AA00 Y
060 A00AA00 Y
060 B00AA00 Y
061  00AA00       25
077 A000000 Y
077 B000000 Y
077 C000000 N
077 D000000 N
077 E000000 N
077 F000000 N
077 G000000 N
077 H000000 N
077 I000000 N
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077 L000000 N
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077 P000000 N
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078  000000 N
080 C00AA00    85000
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028 A010400      1683
<PAGE>      PAGE  6
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033  000400      0
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036 A000400 Y
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042 D000400 100
042 E000400   0
042 F000400   0
042 G000400   0
042 H000400   0
043  000400    668
044  000400      0
045  000400 Y
<PAGE>      PAGE  7
046  000400 Y
047  000400 Y
048  000400  0.000
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048 J010400        0
048 J020400 0.000
048 K010400   400000
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055 A000400 Y
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062 E000400   0.0
062 F000400   0.0
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066 A000400 Y
066 B000400 N
<PAGE>      PAGE  8
066 C000400 N
066 D000400 N
066 E000400 Y
066 F000400 N
066 G000400 N
067  000400 Y
068 A000400 N
068 B000400 N
069  000400 N
070 A010400 Y
070 A020400 Y
070 B010400 Y
070 B020400 N
070 C010400 Y
070 C020400 N
070 D010400 Y
070 D020400 N
070 E010400 Y
070 E020400 N
070 F010400 Y
070 F020400 N
070 G010400 Y
070 G020400 N
070 H010400 Y
070 H020400 N
070 I010400 N
070 I020400 N
070 J010400 Y
070 J020400 Y
070 K010400 N
070 K020400 N
070 L010400 Y
070 L020400 N
070 M010400 Y
070 M020400 N
070 N010400 Y
070 N020400 N
070 O010400 N
070 O020400 N
070 P010400 N
070 P020400 N
070 Q010400 N
070 Q020400 N
070 R010400 N
070 R020400 N
071 A000400    240104
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071 C000400    222757
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072 A000400 12
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<PAGE>      PAGE  9
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072DD020400      168
072EE000400    20271
073 A010400   0.5633
073 A020400   0.4539
073 B000400   1.3871
073 C000400   0.0000
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074 D000400   102299
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074 M000400        4
074 N000400   255253
074 O000400     1450
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<PAGE>      PAGE  10
074 Q000400        0
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074 W000400   0.0000
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074 Y000400     2406
075 A000400        0
075 B000400   245809
076  000400     0.00
028 A010500      6757
028 A020500         0
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028 A040500      2312
028 B010500      8575
028 B020500         0
028 B030500         0
028 B040500      2003
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028 C020500         0
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028 C040500      3772
028 D010500     20638
028 D020500         0
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028 E020500        -1
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028 F010500    100767
028 F020500         1
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028 F040500      9445
028 G010500    326598
028 G020500         0
028 G030500         0
028 G040500     30634
028 H000500    206237
029  000500 Y
030 A000500    886
030 B000500  5.75
030 C000500  0.00
031 A000500    559
<PAGE>      PAGE  11
031 B000500      0
032  000500    327
033  000500      0
034  000500 Y
035  000500     31
036 A000500 N
036 B000500      0
042 A000500   0
042 B000500   0
042 C000500   0
042 D000500 100
042 E000500   0
042 F000500   0
042 G000500   0
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043  000500    874
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045  000500 Y
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048 K010500   400000
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055 A000500 Y
055 B000500 N
056  000500 N
057  000500 N
062 A000500 N
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062 C000500   0.0
062 D000500   0.0
<PAGE>      PAGE  12
062 E000500   0.0
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066 A000500 Y
066 B000500 N
066 C000500 N
066 D000500 Y
066 E000500 N
066 F000500 N
066 G000500 N
067  000500 N
068 A000500 N
068 B000500 N
069  000500 N
070 A010500 Y
070 A020500 N
070 B010500 Y
070 B020500 N
070 C010500 Y
070 C020500 N
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070 D020500 N
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070 F010500 Y
070 F020500 N
070 G010500 Y
070 G020500 N
070 H010500 Y
070 H020500 N
070 I010500 N
070 I020500 N
070 J010500 Y
070 J020500 N
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070 K020500 N
070 L010500 Y
070 L020500 N
<PAGE>      PAGE  13
070 M010500 N
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070 N020500 N
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<PAGE>      PAGE  14
073 B000500   1.4129
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<PAGE>      PAGE  15
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<PAGE>      PAGE  16
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<PAGE>      PAGE  17
070 F011100 Y
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<PAGE>      PAGE  18
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075 B001100    28375
076  001100     0.00
028 A011200       702
028 A021200         0
<PAGE>      PAGE  19
028 A031200         0
028 A041200        77
028 B011200       471
028 B021200       500
028 B031200         0
028 B041200       788
028 C011200      1362
028 C021200         4
028 C031200         0
028 C041200       305
028 D011200        46
028 D021200        -2
028 D031200         0
028 D041200       385
028 E011200       528
028 E021200       510
028 E031200         0
028 E041200       432
028 F011200       776
028 F021200         0
028 F031200         0
028 F041200       371
028 G011200      3885
028 G021200      1012
028 G031200         0
028 G041200      2358
028 H001200      1878
029  001200 Y
030 A001200    100
030 B001200  5.75
030 C001200  0.00
031 A001200     67
031 B001200      0
032  001200     33
033  001200      0
034  001200 Y
035  001200      0
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    189
044  001200      0
045  001200 Y
046  001200 Y
<PAGE>      PAGE  20
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 N
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   0.0
062 O001200   0.0
062 P001200   0.0
062 Q001200   0.0
062 R001200   0.0
063 A001200   0
063 B001200  0.0
066 A001200 Y
066 B001200 N
066 C001200 N
<PAGE>      PAGE  21
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 Y
070 L011200 Y
070 L021200 Y
070 M011200 Y
070 M021200 Y
070 N011200 Y
070 N021200 N
070 O011200 N
070 O021200 N
070 P011200 N
070 P021200 N
070 Q011200 N
070 Q021200 N
070 R011200 N
070 R021200 N
071 A001200     42187
071 B001200     34319
071 C001200     57497
071 D001200   60
072 A001200 12
072 B001200     2157
072 C001200      627
<PAGE>      PAGE  22
072 D001200        0
072 E001200        0
072 F001200      528
072 G001200        0
072 H001200        0
072 I001200       18
072 J001200       50
072 K001200        6
072 L001200       36
072 M001200       29
072 N001200        3
072 O001200        0
072 P001200        0
072 Q001200        0
072 R001200       12
072 S001200       19
072 T001200      189
072 U001200        0
072 V001200        0
072 W001200       26
072 X001200      916
072 Y001200       14
072 Z001200     1882
072AA001200     5852
072BB001200     2577
072CC011200     2125
072CC021200        0
072DD011200     1751
072DD021200       87
072EE001200     1525
073 A011200   0.3723
073 A021200   0.2944
073 B001200   0.3240
073 C001200   0.0000
074 A001200      552
074 B001200     3395
074 C001200        0
074 D001200    24162
074 E001200      174
074 F001200    39062
074 G001200        0
074 H001200        0
074 I001200        0
074 J001200      511
074 K001200        0
074 L001200      544
074 M001200        2
074 N001200    68402
074 O001200      595
074 P001200       29
074 Q001200        0
<PAGE>      PAGE  23
074 R011200        0
074 R021200        0
074 R031200        0
074 R041200       71
074 S001200        0
074 T001200    67707
074 U011200     4920
074 U021200      374
074 V011200    12.66
074 V021200    12.72
074 W001200   0.0000
074 X001200      936
074 Y001200      872
075 A001200        0
075 B001200    62152
076  001200     0.00
028 A011300       806
028 A021300         0
028 A031300         0
028 A041300       309
028 B011300       956
028 B021300         0
028 B031300         0
028 B041300       747
028 C011300       449
028 C021300         0
028 C031300         0
028 C041300       462
028 D011300       750
028 D021300         0
028 D031300         0
028 D041300       499
028 E011300       460
028 E021300         0
028 E031300         0
028 E041300       448
028 F011300      1708
028 F021300         0
028 F031300         0
028 F041300       635
028 G011300      5129
028 G021300         0
028 G031300         0
028 G041300      3100
028 H001300      2604
029  001300 Y
030 A001300    138
030 B001300  5.75
030 C001300  0.00
031 A001300    111
031 B001300      0
<PAGE>      PAGE  24
032  001300     27
033  001300      0
034  001300 Y
035  001300      3
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    170
044  001300      0
045  001300 Y
046  001300 Y
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
057  001300 N
062 A001300 N
062 B001300   0.0
062 C001300   0.0
062 D001300   0.0
062 E001300   0.0
<PAGE>      PAGE  25
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
070 J021300 Y
070 K011300 Y
070 K021300 Y
070 L011300 Y
070 L021300 Y
070 M011300 Y
<PAGE>      PAGE  26
070 M021300 N
070 N011300 Y
070 N021300 N
070 O011300 N
070 O021300 N
070 P011300 N
070 P021300 N
070 Q011300 N
070 Q021300 N
070 R011300 N
070 R021300 N
071 A001300     39385
071 B001300     31935
071 C001300     48406
071 D001300   66
072 A001300 12
072 B001300     1160
072 C001300      671
072 D001300        0
072 E001300        0
072 F001300      457
072 G001300        0
072 H001300        0
072 I001300       35
072 J001300       47
072 K001300       11
072 L001300       30
072 M001300       32
072 N001300        3
072 O001300        0
072 P001300        0
072 Q001300        0
072 R001300       13
072 S001300       23
072 T001300      170
072 U001300        0
072 V001300        0
072 W001300       24
072 X001300      845
072 Y001300        9
072 Z001300      995
072AA001300     6122
072BB001300     2628
072CC011300     2101
072CC021300        0
072DD011300      280
072DD021300       12
072EE001300     2304
073 A011300   0.0800
073 A021300   0.0567
073 B001300   0.6186
<PAGE>      PAGE  27
073 C001300   0.0000
074 A001300      475
074 B001300     4673
074 C001300        0
074 D001300    10790
074 E001300      174
074 F001300    43624
074 G001300        0
074 H001300        0
074 I001300        0
074 J001300      510
074 K001300        0
074 L001300      305
074 M001300        2
074 N001300    60553
074 O001300      538
074 P001300       30
074 Q001300        0
074 R011300        0
074 R021300        0
074 R031300        0
074 R041300       66
074 S001300        0
074 T001300    59919
074 U011300     3900
074 U021300      396
074 V011300    13.67
074 V021300    13.62
074 W001300   0.0000
074 X001300     1806
074 Y001300      698
075 A001300        0
075 B001300    53860
076  001300     0.00
SIGNATURE   GEORGE C. BOWEN                              
TITLE       TREASURER           
 

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-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                 219,783,941
<INVESTMENTS-AT-VALUE>                                                                240,750,332
<RECEIVABLES>                                                                          14,434,499
<ASSETS-OTHER>                                                                              4,372
<OTHER-ITEMS-ASSETS>                                                                       63,951
<TOTAL-ASSETS>                                                                        255,253,154
<PAYABLE-FOR-SECURITIES>                                                                1,450,222
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 341,791
<TOTAL-LIABILITIES>                                                                     1,792,013
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              204,544,232
<SHARES-COMMON-STOCK>                                                                  14,469,482
<SHARES-COMMON-PRIOR>                                                                  14,577,178
<ACCUMULATED-NII-CURRENT>                                                                 828,581
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                27,121,937
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               20,966,391
<NET-ASSETS>                                                                          243,267,192
<DIVIDEND-INCOME>                                                                       1,968,214
<INTEREST-INCOME>                                                                       8,554,080
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          2,792,481
<NET-INVESTMENT-INCOME>                                                                 7,729,813
<REALIZED-GAINS-CURRENT>                                                               27,308,175
<APPREC-INCREASE-CURRENT>                                                               7,070,415
<NET-CHANGE-FROM-OPS>                                                                  42,108,403
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               8,280,055
<DISTRIBUTIONS-OF-GAINS>                                                               19,860,930
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                 1,295,002
<NUMBER-OF-SHARES-REDEEMED>                                                             3,224,574
<SHARES-REINVESTED>                                                                     1,821,876
<NET-CHANGE-IN-ASSETS>                                                                 16,064,801
<ACCUMULATED-NII-PRIOR>                                                                 1,524,191
<ACCUMULATED-GAINS-PRIOR>                                                              20,128,897
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,535,343
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         2,792,481
<AVERAGE-NET-ASSETS>                                                                  238,821,000
<PER-SHARE-NAV-BEGIN>                                                                          16.00
<PER-SHARE-NII>                                                                                 0.51
<PER-SHARE-GAIN-APPREC>                                                                         2.25
<PER-SHARE-DIVIDEND>                                                                            0.56
<PER-SHARE-DISTRIBUTIONS>                                                                       1.39
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            16.81
<EXPENSE-RATIO>                                                                                 1.11
<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-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                 219,783,941
<INVESTMENTS-AT-VALUE>                                                                240,750,332
<RECEIVABLES>                                                                          14,434,499
<ASSETS-OTHER>                                                                              4,372
<OTHER-ITEMS-ASSETS>                                                                       63,951
<TOTAL-ASSETS>                                                                        255,253,154
<PAYABLE-FOR-SECURITIES>                                                                1,450,222
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 341,791
<TOTAL-LIABILITIES>                                                                     1,792,013
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              204,544,232
<SHARES-COMMON-STOCK>                                                                     513,404
<SHARES-COMMON-PRIOR>                                                                     242,457
<ACCUMULATED-NII-CURRENT>                                                                 828,581
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                27,121,937
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               20,966,391
<NET-ASSETS>                                                                            8,720,474
<DIVIDEND-INCOME>                                                                       1,968,214
<INTEREST-INCOME>                                                                       8,554,080
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          2,792,481
<NET-INVESTMENT-INCOME>                                                                 7,729,813
<REALIZED-GAINS-CURRENT>                                                               27,308,175
<APPREC-INCREASE-CURRENT>                                                               7,070,415
<NET-CHANGE-FROM-OPS>                                                                  42,108,403
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                 168,085
<DISTRIBUTIONS-OF-GAINS>                                                                  389,052
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   279,134
<NUMBER-OF-SHARES-REDEEMED>                                                                43,911
<SHARES-REINVESTED>                                                                        35,724
<NET-CHANGE-IN-ASSETS>                                                                 16,064,801
<ACCUMULATED-NII-PRIOR>                                                                 1,524,191
<ACCUMULATED-GAINS-PRIOR>                                                              20,128,897
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,535,343
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         2,792,481
<AVERAGE-NET-ASSETS>                                                                    6,183,000
<PER-SHARE-NAV-BEGIN>                                                                          16.16
<PER-SHARE-NII>                                                                                 0.40
<PER-SHARE-GAIN-APPREC>                                                                         2.27
<PER-SHARE-DIVIDEND>                                                                            0.45
<PER-SHARE-DISTRIBUTIONS>                                                                       1.39
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            16.99
<EXPENSE-RATIO>                                                                                 1.89
<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-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                 219,783,941
<INVESTMENTS-AT-VALUE>                                                                240,750,332
<RECEIVABLES>                                                                          14,434,499
<ASSETS-OTHER>                                                                              4,372
<OTHER-ITEMS-ASSETS>                                                                       63,951
<TOTAL-ASSETS>                                                                        255,253,154
<PAYABLE-FOR-SECURITIES>                                                                1,450,222
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 341,791
<TOTAL-LIABILITIES>                                                                     1,792,013
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              204,544,232
<SHARES-COMMON-STOCK>                                                                      88,237
<SHARES-COMMON-PRIOR>                                                                      11,803
<ACCUMULATED-NII-CURRENT>                                                                 828,581
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                27,121,937
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               20,966,391
<NET-ASSETS>                                                                            1,473,475
<DIVIDEND-INCOME>                                                                       1,968,214
<INTEREST-INCOME>                                                                       8,554,080
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          2,792,481
<NET-INVESTMENT-INCOME>                                                                 7,729,813
<REALIZED-GAINS-CURRENT>                                                               27,308,175
<APPREC-INCREASE-CURRENT>                                                               7,070,415
<NET-CHANGE-FROM-OPS>                                                                  42,108,403
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  21,190
<DISTRIBUTIONS-OF-GAINS>                                                                   21,246
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    80,502
<NUMBER-OF-SHARES-REDEEMED>                                                                 6,697
<SHARES-REINVESTED>                                                                         2,629
<NET-CHANGE-IN-ASSETS>                                                                 16,064,801
<ACCUMULATED-NII-PRIOR>                                                                 1,524,191
<ACCUMULATED-GAINS-PRIOR>                                                              20,128,897
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,535,343
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         2,792,481
<AVERAGE-NET-ASSETS>                                                                      805,000
<PER-SHARE-NAV-BEGIN>                                                                          15.93
<PER-SHARE-NII>                                                                                 0.48
<PER-SHARE-GAIN-APPREC>                                                                         2.19
<PER-SHARE-DIVIDEND>                                                                            0.47
<PER-SHARE-DISTRIBUTIONS>                                                                       1.39
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            16.70
<EXPENSE-RATIO>                                                                                 1.92
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  27,723,982
<INVESTMENTS-AT-VALUE>                                                                 29,794,676
<RECEIVABLES>                                                                             444,148
<ASSETS-OTHER>                                                                              1,639
<OTHER-ITEMS-ASSETS>                                                                      353,691
<TOTAL-ASSETS>                                                                         30,594,154
<PAYABLE-FOR-SECURITIES>                                                                  433,257
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 106,614
<TOTAL-LIABILITIES>                                                                       539,871
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               27,577,259
<SHARES-COMMON-STOCK>                                                                   2,639,654
<SHARES-COMMON-PRIOR>                                                                   2,471,146
<ACCUMULATED-NII-CURRENT>                                                                   2,079
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                   404,251
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                2,070,694
<NET-ASSETS>                                                                           29,205,770
<DIVIDEND-INCOME>                                                                         273,552
<INTEREST-INCOME>                                                                       1,686,587
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            408,718
<NET-INVESTMENT-INCOME>                                                                 1,551,421
<REALIZED-GAINS-CURRENT>                                                                  425,024
<APPREC-INCREASE-CURRENT>                                                               1,052,959
<NET-CHANGE-FROM-OPS>                                                                   3,029,404
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               1,519,218
<DISTRIBUTIONS-OF-GAINS>                                                                  381,291
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    76,799
<NUMBER-OF-SHARES-REDEEMED>                                                                78,072
<SHARES-REINVESTED>                                                                       169,781
<NET-CHANGE-IN-ASSETS>                                                                  3,269,668
<ACCUMULATED-NII-PRIOR>                                                                        11
<ACCUMULATED-GAINS-PRIOR>                                                                 370,133
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     212,649
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           415,679
<AVERAGE-NET-ASSETS>                                                                   27,677,821
<PER-SHARE-NAV-BEGIN>                                                                          10.65
<PER-SHARE-NII>                                                                                 0.59
<PER-SHARE-GAIN-APPREC>                                                                         0.56
<PER-SHARE-DIVIDEND>                                                                            0.59
<PER-SHARE-DISTRIBUTIONS>                                                                       0.15
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            11.06
<EXPENSE-RATIO>                                                                                 1.45
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  27,723,982
<INVESTMENTS-AT-VALUE>                                                                 29,794,676
<RECEIVABLES>                                                                             444,148
<ASSETS-OTHER>                                                                              1,639
<OTHER-ITEMS-ASSETS>                                                                      353,691
<TOTAL-ASSETS>                                                                         30,594,154
<PAYABLE-FOR-SECURITIES>                                                                  433,257
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 106,614
<TOTAL-LIABILITIES>                                                                       539,871
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               27,577,259
<SHARES-COMMON-STOCK>                                                                      73,513
<SHARES-COMMON-PRIOR>                                                                      42,628
<ACCUMULATED-NII-CURRENT>                                                                   2,079
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                   404,251
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                2,070,694
<NET-ASSETS>                                                                              816,411
<DIVIDEND-INCOME>                                                                         273,552
<INTEREST-INCOME>                                                                       1,686,587
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            408,718
<NET-INVESTMENT-INCOME>                                                                 1,551,421
<REALIZED-GAINS-CURRENT>                                                                  425,024
<APPREC-INCREASE-CURRENT>                                                               1,052,959
<NET-CHANGE-FROM-OPS>                                                                   3,029,404
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  31,306
<DISTRIBUTIONS-OF-GAINS>                                                                    7,459
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    35,037
<NUMBER-OF-SHARES-REDEEMED>                                                                 7,512
<SHARES-REINVESTED>                                                                         3,360
<NET-CHANGE-IN-ASSETS>                                                                  3,269,668
<ACCUMULATED-NII-PRIOR>                                                                        11
<ACCUMULATED-GAINS-PRIOR>                                                                 370,133
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     212,649
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           415,679
<AVERAGE-NET-ASSETS>                                                                      676,718
<PER-SHARE-NAV-BEGIN>                                                                          10.69
<PER-SHARE-NII>                                                                                 0.51
<PER-SHARE-GAIN-APPREC>                                                                         0.57
<PER-SHARE-DIVIDEND>                                                                            0.51
<PER-SHARE-DISTRIBUTIONS>                                                                       0.15
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            11.11
<EXPENSE-RATIO>                                                                                 2.18
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  27,723,982
<INVESTMENTS-AT-VALUE>                                                                 29,794,676
<RECEIVABLES>                                                                             444,148
<ASSETS-OTHER>                                                                              1,639
<OTHER-ITEMS-ASSETS>                                                                      353,691
<TOTAL-ASSETS>                                                                         30,594,154
<PAYABLE-FOR-SECURITIES>                                                                  433,257
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 106,614
<TOTAL-LIABILITIES>                                                                       539,871
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               27,577,259
<SHARES-COMMON-STOCK>                                                                       2,893
<SHARES-COMMON-PRIOR>                                                                          95
<ACCUMULATED-NII-CURRENT>                                                                   2,079
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                   404,251
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                2,070,694
<NET-ASSETS>                                                                               32,102
<DIVIDEND-INCOME>                                                                         273,552
<INTEREST-INCOME>                                                                       1,686,587
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            408,718
<NET-INVESTMENT-INCOME>                                                                 1,551,421
<REALIZED-GAINS-CURRENT>                                                                  425,024
<APPREC-INCREASE-CURRENT>                                                               1,052,959
<NET-CHANGE-FROM-OPS>                                                                   3,029,404
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                     908
<DISTRIBUTIONS-OF-GAINS>                                                                       77
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                     2,712
<NUMBER-OF-SHARES-REDEEMED>                                                                     0
<SHARES-REINVESTED>                                                                            86
<NET-CHANGE-IN-ASSETS>                                                                  3,269,668
<ACCUMULATED-NII-PRIOR>                                                                        11
<ACCUMULATED-GAINS-PRIOR>                                                                 370,133
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     212,649
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           415,679
<AVERAGE-NET-ASSETS>                                                                       19,989
<PER-SHARE-NAV-BEGIN>                                                                          10.66
<PER-SHARE-NII>                                                                                 0.55
<PER-SHARE-GAIN-APPREC>                                                                         0.58
<PER-SHARE-DIVIDEND>                                                                            0.54
<PER-SHARE-DISTRIBUTIONS>                                                                       0.15
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            11.10
<EXPENSE-RATIO>                                                                                 2.20
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  59,200,693
<INVESTMENTS-AT-VALUE>                                                                 66,792,544
<RECEIVABLES>                                                                           1,055,517
<ASSETS-OTHER>                                                                              1,812
<OTHER-ITEMS-ASSETS>                                                                      552,070
<TOTAL-ASSETS>                                                                         68,401,943
<PAYABLE-FOR-SECURITIES>                                                                  594,944
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 100,243
<TOTAL-LIABILITIES>                                                                       695,187
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               56,647,053
<SHARES-COMMON-STOCK>                                                                   4,919,634
<SHARES-COMMON-PRIOR>                                                                   4,376,638
<ACCUMULATED-NII-CURRENT>                                                                 209,750
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 3,257,932
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                7,592,021
<NET-ASSETS>                                                                           62,261,972
<DIVIDEND-INCOME>                                                                         626,821
<INTEREST-INCOME>                                                                       2,157,148
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            902,109
<NET-INVESTMENT-INCOME>                                                                 1,881,860
<REALIZED-GAINS-CURRENT>                                                                3,275,474
<APPREC-INCREASE-CURRENT>                                                               2,124,846
<NET-CHANGE-FROM-OPS>                                                                   7,282,180
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                               1,751,264
<DISTRIBUTIONS-OF-GAINS>                                                                1,432,693
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   672,918
<NUMBER-OF-SHARES-REDEEMED>                                                               393,016
<SHARES-REINVESTED>                                                                       263,094
<NET-CHANGE-IN-ASSETS>                                                                 12,881,415
<ACCUMULATED-NII-PRIOR>                                                                   194,574
<ACCUMULATED-GAINS-PRIOR>                                                               1,499,219
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     527,770
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           916,277
<AVERAGE-NET-ASSETS>                                                                   57,769,033
<PER-SHARE-NAV-BEGIN>                                                                          11.90
<PER-SHARE-NII>                                                                                 0.37
<PER-SHARE-GAIN-APPREC>                                                                         1.08
<PER-SHARE-DIVIDEND>                                                                            0.37
<PER-SHARE-DISTRIBUTIONS>                                                                       0.32
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            12.66
<EXPENSE-RATIO>                                                                                 1.42
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  59,200,693
<INVESTMENTS-AT-VALUE>                                                                 66,792,544
<RECEIVABLES>                                                                           1,055,517
<ASSETS-OTHER>                                                                              1,812
<OTHER-ITEMS-ASSETS>                                                                      552,070
<TOTAL-ASSETS>                                                                         68,401,943
<PAYABLE-FOR-SECURITIES>                                                                  594,944
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 100,243
<TOTAL-LIABILITIES>                                                                       695,187
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               56,647,053
<SHARES-COMMON-STOCK>                                                                     374,239
<SHARES-COMMON-PRIOR>                                                                     158,021
<ACCUMULATED-NII-CURRENT>                                                                 209,750
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 3,257,932
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                7,592,021
<NET-ASSETS>                                                                            4,761,973
<DIVIDEND-INCOME>                                                                         626,821
<INTEREST-INCOME>                                                                       2,157,148
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            902,109
<NET-INVESTMENT-INCOME>                                                                 1,881,860
<REALIZED-GAINS-CURRENT>                                                                3,275,474
<APPREC-INCREASE-CURRENT>                                                               2,124,846
<NET-CHANGE-FROM-OPS>                                                                   7,282,180
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  86,844
<DISTRIBUTIONS-OF-GAINS>                                                                   69,269
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   253,560
<NUMBER-OF-SHARES-REDEEMED>                                                                49,667
<SHARES-REINVESTED>                                                                        12,325
<NET-CHANGE-IN-ASSETS>                                                                 12,881,415
<ACCUMULATED-NII-PRIOR>                                                                   194,574
<ACCUMULATED-GAINS-PRIOR>                                                               1,499,219
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     527,770
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           916,277
<AVERAGE-NET-ASSETS>                                                                    3,503,634
<PER-SHARE-NAV-BEGIN>                                                                          11.98
<PER-SHARE-NII>                                                                                 0.27
<PER-SHARE-GAIN-APPREC>                                                                         1.08
<PER-SHARE-DIVIDEND>                                                                            0.29
<PER-SHARE-DISTRIBUTIONS>                                                                       0.32
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            12.72
<EXPENSE-RATIO>                                                                                 2.18
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  59,200,693
<INVESTMENTS-AT-VALUE>                                                                 66,792,544
<RECEIVABLES>                                                                           1,055,517
<ASSETS-OTHER>                                                                              1,812
<OTHER-ITEMS-ASSETS>                                                                      552,070
<TOTAL-ASSETS>                                                                         68,401,943
<PAYABLE-FOR-SECURITIES>                                                                  594,944
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 100,243
<TOTAL-LIABILITIES>                                                                       695,187
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               56,647,053
<SHARES-COMMON-STOCK>                                                                      54,094
<SHARES-COMMON-PRIOR>                                                                      69,708
<ACCUMULATED-NII-CURRENT>                                                                 209,750
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 3,257,932
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                7,592,021
<NET-ASSETS>                                                                              682,811
<DIVIDEND-INCOME>                                                                         626,821
<INTEREST-INCOME>                                                                       2,157,148
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            902,109
<NET-INVESTMENT-INCOME>                                                                 1,881,860
<REALIZED-GAINS-CURRENT>                                                                3,275,474
<APPREC-INCREASE-CURRENT>                                                               2,124,846
<NET-CHANGE-FROM-OPS>                                                                   7,282,180
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  20,115
<DISTRIBUTIONS-OF-GAINS>                                                                   23,260
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    47,180
<NUMBER-OF-SHARES-REDEEMED>                                                                66,431
<SHARES-REINVESTED>                                                                         3,637
<NET-CHANGE-IN-ASSETS>                                                                 12,881,415
<ACCUMULATED-NII-PRIOR>                                                                   194,574
<ACCUMULATED-GAINS-PRIOR>                                                               1,499,219
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     527,770
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           916,277
<AVERAGE-NET-ASSETS>                                                                      878,717
<PER-SHARE-NAV-BEGIN>                                                                          11.88
<PER-SHARE-NII>                                                                                 0.28
<PER-SHARE-GAIN-APPREC>                                                                         1.07
<PER-SHARE-DIVIDEND>                                                                            0.29
<PER-SHARE-DISTRIBUTIONS>                                                                       0.32
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            12.62
<EXPENSE-RATIO>                                                                                 2.16
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  51,331,382
<INVESTMENTS-AT-VALUE>                                                                 59,260,606
<RECEIVABLES>                                                                             815,947
<ASSETS-OTHER>                                                                              1,731
<OTHER-ITEMS-ASSETS>                                                                      474,933
<TOTAL-ASSETS>                                                                         60,553,217
<PAYABLE-FOR-SECURITIES>                                                                  538,459
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                  95,964
<TOTAL-LIABILITIES>                                                                       634,423
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               47,663,953
<SHARES-COMMON-STOCK>                                                                   3,900,030
<SHARES-COMMON-PRIOR>                                                                   3,440,864
<ACCUMULATED-NII-CURRENT>                                                                 858,469
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 3,466,954
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                7,929,418
<NET-ASSETS>                                                                           53,318,387
<DIVIDEND-INCOME>                                                                         670,676
<INTEREST-INCOME>                                                                       1,159,982
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            836,042
<NET-INVESTMENT-INCOME>                                                                   994,616
<REALIZED-GAINS-CURRENT>                                                                3,493,992
<APPREC-INCREASE-CURRENT>                                                               2,100,837
<NET-CHANGE-FROM-OPS>                                                                   6,589,445
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                 279,883
<DISTRIBUTIONS-OF-GAINS>                                                                2,163,698
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   590,543
<NUMBER-OF-SHARES-REDEEMED>                                                               327,056
<SHARES-REINVESTED>                                                                       195,679
<NET-CHANGE-IN-ASSETS>                                                                 13,392,582
<ACCUMULATED-NII-PRIOR>                                                                   171,706
<ACCUMULATED-GAINS-PRIOR>                                                               2,261,956
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     457,316
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           845,404
<AVERAGE-NET-ASSETS>                                                                   49,213,069
<PER-SHARE-NAV-BEGIN>                                                                          12.78
<PER-SHARE-NII>                                                                                 0.24
<PER-SHARE-GAIN-APPREC>                                                                         1.35
<PER-SHARE-DIVIDEND>                                                                            0.08
<PER-SHARE-DISTRIBUTIONS>                                                                       0.62
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            13.67
<EXPENSE-RATIO>                                                                                 1.50
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  51,331,382
<INVESTMENTS-AT-VALUE>                                                                 59,260,606
<RECEIVABLES>                                                                             815,947
<ASSETS-OTHER>                                                                              1,731
<OTHER-ITEMS-ASSETS>                                                                      474,933
<TOTAL-ASSETS>                                                                         60,553,217
<PAYABLE-FOR-SECURITIES>                                                                  538,459
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                  95,964
<TOTAL-LIABILITIES>                                                                       634,423
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               47,663,953
<SHARES-COMMON-STOCK>                                                                     395,745
<SHARES-COMMON-PRIOR>                                                                     187,750
<ACCUMULATED-NII-CURRENT>                                                                 858,469
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 3,466,954
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                7,929,418
<NET-ASSETS>                                                                            5,390,939
<DIVIDEND-INCOME>                                                                         670,676
<INTEREST-INCOME>                                                                       1,159,982
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            836,042
<NET-INVESTMENT-INCOME>                                                                   994,616
<REALIZED-GAINS-CURRENT>                                                                3,493,992
<APPREC-INCREASE-CURRENT>                                                               2,100,837
<NET-CHANGE-FROM-OPS>                                                                   6,589,445
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  11,776
<DISTRIBUTIONS-OF-GAINS>                                                                  128,434
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   227,007
<NUMBER-OF-SHARES-REDEEMED>                                                                30,185
<SHARES-REINVESTED>                                                                        11,173
<NET-CHANGE-IN-ASSETS>                                                                 13,392,582
<ACCUMULATED-NII-PRIOR>                                                                   171,706
<ACCUMULATED-GAINS-PRIOR>                                                               2,261,956
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     457,316
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           845,404
<AVERAGE-NET-ASSETS>                                                                    3,924,950
<PER-SHARE-NAV-BEGIN>                                                                          12.81
<PER-SHARE-NII>                                                                                 0.14
<PER-SHARE-GAIN-APPREC>                                                                         1.35
<PER-SHARE-DIVIDEND>                                                                            0.06
<PER-SHARE-DISTRIBUTIONS>                                                                       0.62
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            13.62
<EXPENSE-RATIO>                                                                                 2.27
<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>                                                           12-MOS
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                  51,331,382
<INVESTMENTS-AT-VALUE>                                                                 59,260,606
<RECEIVABLES>                                                                             815,947
<ASSETS-OTHER>                                                                              1,731
<OTHER-ITEMS-ASSETS>                                                                      474,933
<TOTAL-ASSETS>                                                                         60,553,217
<PAYABLE-FOR-SECURITIES>                                                                  538,459
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                  95,964
<TOTAL-LIABILITIES>                                                                       634,423
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                               47,663,953
<SHARES-COMMON-STOCK>                                                                      89,402
<SHARES-COMMON-PRIOR>                                                                      11,060
<ACCUMULATED-NII-CURRENT>                                                                 858,469
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                 3,466,954
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                                7,929,418
<NET-ASSETS>                                                                            1,209,468
<DIVIDEND-INCOME>                                                                         670,676
<INTEREST-INCOME>                                                                       1,159,982
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                            836,042
<NET-INVESTMENT-INCOME>                                                                   994,616
<REALIZED-GAINS-CURRENT>                                                                3,493,992
<APPREC-INCREASE-CURRENT>                                                               2,100,837
<NET-CHANGE-FROM-OPS>                                                                   6,589,445
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                   1,248
<DISTRIBUTIONS-OF-GAINS>                                                                   11,808
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                    86,490
<NUMBER-OF-SHARES-REDEEMED>                                                                 8,994
<SHARES-REINVESTED>                                                                           846
<NET-CHANGE-IN-ASSETS>                                                                 13,392,582
<ACCUMULATED-NII-PRIOR>                                                                   171,706
<ACCUMULATED-GAINS-PRIOR>                                                               2,261,956
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                     457,316
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                           845,404
<AVERAGE-NET-ASSETS>                                                                      722,341
<PER-SHARE-NAV-BEGIN>                                                                          12.74
<PER-SHARE-NII>                                                                                 0.14
<PER-SHARE-GAIN-APPREC>                                                                         1.34
<PER-SHARE-DIVIDEND>                                                                            0.07
<PER-SHARE-DISTRIBUTIONS>                                                                       0.62
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            13.53
<EXPENSE-RATIO>                                                                                 2.29
<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-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                 457,479,603
<INVESTMENTS-AT-VALUE>                                                                546,186,811
<RECEIVABLES>                                                                          16,304,534
<ASSETS-OTHER>                                                                              6,352
<OTHER-ITEMS-ASSETS>                                                                       97,315
<TOTAL-ASSETS>                                                                        562,595,012
<PAYABLE-FOR-SECURITIES>                                                                5,475,009
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 783,011
<TOTAL-LIABILITIES>                                                                     6,258,020
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              397,127,686
<SHARES-COMMON-STOCK>                                                                  15,948,062
<SHARES-COMMON-PRIOR>                                                                   9,201,201
<ACCUMULATED-NII-CURRENT>                                                               2,934,887
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                67,567,211
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               88,707,208
<NET-ASSETS>                                                                          371,809,526
<DIVIDEND-INCOME>                                                                       4,898,669
<INTEREST-INCOME>                                                                       1,658,497
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          3,482,860
<NET-INVESTMENT-INCOME>                                                                 3,074,306
<REALIZED-GAINS-CURRENT>                                                               67,704,492
<APPREC-INCREASE-CURRENT>                                                             (16,812,534)
<NET-CHANGE-FROM-OPS>                                                                  53,966,264
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                 641,547
<DISTRIBUTIONS-OF-GAINS>                                                               12,873,125
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                11,344,958
<NUMBER-OF-SHARES-REDEEMED>                                                             5,280,662
<SHARES-REINVESTED>                                                                       682,565
<NET-CHANGE-IN-ASSETS>                                                                368,983,484
<ACCUMULATED-NII-PRIOR>                                                                   479,425
<ACCUMULATED-GAINS-PRIOR>                                                              13,295,701
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,850,924
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         3,482,860
<AVERAGE-NET-ASSETS>                                                                  234,314,279
<PER-SHARE-NAV-BEGIN>                                                                          19.65
<PER-SHARE-NII>                                                                                 0.23
<PER-SHARE-GAIN-APPREC>                                                                         4.91
<PER-SHARE-DIVIDEND>                                                                            0.07
<PER-SHARE-DISTRIBUTIONS>                                                                       1.41
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            23.31
<EXPENSE-RATIO>                                                                                 1.07
<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-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                 457,479,603
<INVESTMENTS-AT-VALUE>                                                                546,186,811
<RECEIVABLES>                                                                          16,304,534
<ASSETS-OTHER>                                                                              6,352
<OTHER-ITEMS-ASSETS>                                                                       97,315
<TOTAL-ASSETS>                                                                        562,595,012
<PAYABLE-FOR-SECURITIES>                                                                5,475,009
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 783,011
<TOTAL-LIABILITIES>                                                                     6,258,020
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              397,127,686
<SHARES-COMMON-STOCK>                                                                   3,572,324
<SHARES-COMMON-PRIOR>                                                                     296,100
<ACCUMULATED-NII-CURRENT>                                                               2,934,887
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                67,567,211
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               88,707,208
<NET-ASSETS>                                                                           83,290,683
<DIVIDEND-INCOME>                                                                       4,898,669
<INTEREST-INCOME>                                                                       1,658,497
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          3,482,860
<NET-INVESTMENT-INCOME>                                                                 3,074,306
<REALIZED-GAINS-CURRENT>                                                               67,704,492
<APPREC-INCREASE-CURRENT>                                                             (16,812,534)
<NET-CHANGE-FROM-OPS>                                                                  53,966,264
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                  12,589
<DISTRIBUTIONS-OF-GAINS>                                                                  496,006
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                 3,495,478
<NUMBER-OF-SHARES-REDEEMED>                                                               244,280
<SHARES-REINVESTED>                                                                        25,026
<NET-CHANGE-IN-ASSETS>                                                                368,983,484
<ACCUMULATED-NII-PRIOR>                                                                   479,425
<ACCUMULATED-GAINS-PRIOR>                                                              13,295,701
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,850,924
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         3,482,860
<AVERAGE-NET-ASSETS>                                                                   30,019,076
<PER-SHARE-NAV-BEGIN>                                                                          19.77
<PER-SHARE-NII>                                                                                 0.09
<PER-SHARE-GAIN-APPREC>                                                                         4.91
<PER-SHARE-DIVIDEND>                                                                            0.04
<PER-SHARE-DISTRIBUTIONS>                                                                       1.41
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            23.32
<EXPENSE-RATIO>                                                                                 1.84
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>

<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-31-1997
<PERIOD-START>                                                          NOV-01-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                 457,479,603
<INVESTMENTS-AT-VALUE>                                                                546,186,811
<RECEIVABLES>                                                                          16,304,534
<ASSETS-OTHER>                                                                              6,352
<OTHER-ITEMS-ASSETS>                                                                       97,315
<TOTAL-ASSETS>                                                                        562,595,012
<PAYABLE-FOR-SECURITIES>                                                                5,475,009
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 783,011
<TOTAL-LIABILITIES>                                                                     6,258,020
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              397,127,686
<SHARES-COMMON-STOCK>                                                                     444,018
<SHARES-COMMON-PRIOR>                                                                      36,533
<ACCUMULATED-NII-CURRENT>                                                               2,934,887
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                67,567,211
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               88,707,208
<NET-ASSETS>                                                                           10,243,102
<DIVIDEND-INCOME>                                                                       4,898,669
<INTEREST-INCOME>                                                                       1,658,497
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          3,482,860
<NET-INVESTMENT-INCOME>                                                                 3,074,306
<REALIZED-GAINS-CURRENT>                                                               67,704,492
<APPREC-INCREASE-CURRENT>                                                             (16,812,534)
<NET-CHANGE-FROM-OPS>                                                                  53,966,264
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                   1,655
<DISTRIBUTIONS-OF-GAINS>                                                                   63,782
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                   439,330
<NUMBER-OF-SHARES-REDEEMED>                                                                35,084
<SHARES-REINVESTED>                                                                         3,239
<NET-CHANGE-IN-ASSETS>                                                                368,983,484
<ACCUMULATED-NII-PRIOR>                                                                   479,425
<ACCUMULATED-GAINS-PRIOR>                                                              13,295,701
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,850,924
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         3,482,860
<AVERAGE-NET-ASSETS>                                                                    4,476,647
<PER-SHARE-NAV-BEGIN>                                                                          19.57
<PER-SHARE-NII>                                                                                 0.10
<PER-SHARE-GAIN-APPREC>                                                                         4.85
<PER-SHARE-DIVIDEND>                                                                            0.04
<PER-SHARE-DISTRIBUTIONS>                                                                       1.41
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            23.07
<EXPENSE-RATIO>                                                                                 1.86
<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>                                                           10-mos
<FISCAL-YEAR-END>                                                       OCT-31-1997
<PERIOD-START>                                                          DEC-16-1996
<PERIOD-END>                                                            OCT-31-1997
<INVESTMENTS-AT-COST>                                                                 457,479,603
<INVESTMENTS-AT-VALUE>                                                                546,186,811
<RECEIVABLES>                                                                          16,304,534
<ASSETS-OTHER>                                                                              6,352
<OTHER-ITEMS-ASSETS>                                                                       97,315
<TOTAL-ASSETS>                                                                        562,595,012
<PAYABLE-FOR-SECURITIES>                                                                5,475,009
<SENIOR-LONG-TERM-DEBT>                                                                         0
<OTHER-ITEMS-LIABILITIES>                                                                 783,011
<TOTAL-LIABILITIES>                                                                     6,258,020
<SENIOR-EQUITY>                                                                                 0
<PAID-IN-CAPITAL-COMMON>                                                              397,127,686
<SHARES-COMMON-STOCK>                                                                   3,898,705
<SHARES-COMMON-PRIOR>                                                                           0
<ACCUMULATED-NII-CURRENT>                                                               2,934,887
<OVERDISTRIBUTION-NII>                                                                          0
<ACCUMULATED-NET-GAINS>                                                                67,567,211
<OVERDISTRIBUTION-GAINS>                                                                        0
<ACCUM-APPREC-OR-DEPREC>                                                               88,707,208
<NET-ASSETS>                                                                           90,993,681
<DIVIDEND-INCOME>                                                                       4,898,669
<INTEREST-INCOME>                                                                       1,658,497
<OTHER-INCOME>                                                                                  0
<EXPENSES-NET>                                                                          3,482,860
<NET-INVESTMENT-INCOME>                                                                 3,074,306
<REALIZED-GAINS-CURRENT>                                                               67,704,492
<APPREC-INCREASE-CURRENT>                                                             (16,812,534)
<NET-CHANGE-FROM-OPS>                                                                  53,966,264
<EQUALIZATION>                                                                                  0
<DISTRIBUTIONS-OF-INCOME>                                                                       3
<DISTRIBUTIONS-OF-GAINS>                                                                       69
<DISTRIBUTIONS-OTHER>                                                                           0
<NUMBER-OF-SHARES-SOLD>                                                                 4,130,366
<NUMBER-OF-SHARES-REDEEMED>                                                               231,661
<SHARES-REINVESTED>                                                                             0
<NET-CHANGE-IN-ASSETS>                                                                368,983,484
<ACCUMULATED-NII-PRIOR>                                                                   479,425
<ACCUMULATED-GAINS-PRIOR>                                                              13,295,701
<OVERDISTRIB-NII-PRIOR>                                                                         0
<OVERDIST-NET-GAINS-PRIOR>                                                                      0
<GROSS-ADVISORY-FEES>                                                                   1,850,924
<INTEREST-EXPENSE>                                                                              0
<GROSS-EXPENSE>                                                                         3,482,860
<AVERAGE-NET-ASSETS>                                                                   51,774,958
<PER-SHARE-NAV-BEGIN>                                                                          20.31
<PER-SHARE-NII>                                                                                 0.31
<PER-SHARE-GAIN-APPREC>                                                                         4.20
<PER-SHARE-DIVIDEND>                                                                            0.07
<PER-SHARE-DISTRIBUTIONS>                                                                       1.41
<RETURNS-OF-CAPITAL>                                                                            0.00
<PER-SHARE-NAV-END>                                                                            23.34
<EXPENSE-RATIO>                                                                                 0.78
<AVG-DEBT-OUTSTANDING>                                                                          0
<AVG-DEBT-PER-SHARE>                                                                            0.00
        

</TABLE>

<PAGE>

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, 1997, we considered
its internal control structure, 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 the internal control
structure.

The management of Oppenheimer Disciplined Allocation Fund is responsible for
establishing and maintaining an internal control structure. In fulfilling this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of internal control structure policies and
procedures. Two of the objectives of an internal control structure 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 any internal control structure, errors or
irregularities may occur and may not be detected. Also, projection of any
evaluation of the structure to future periods is subject to the risk that it may
become inadequate because of changes in conditions or that the effectiveness of
the design and operation may deteriorate.

Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure 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 the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in relation to the financial statements being audited may
occur and not be detected within a timely period by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we considered to be material weaknesses as defined above as of
October 31, 1997.

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.



                                                     /S/KPMG PEAT MARWICK LLP
                                                     KPMG PEAT MARWICK LLP


Denver, Colorado
November 21, 1997


<PAGE>

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, 1997, we considered its
internal control structure, 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 re quirements of Form
N-SAR, not to provide assurance on the internal control structure.

The management of Oppenheimer Disciplined Value Fund is responsible for
establishing and maintaining an internal control structure. In fulfilling this
responsibility, estimates and judgments by management are required to assess the
expected benefits and related costs of internal control structure policies and
procedures. Two of the objectives of an internal control structure 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 state ments in conformity
with generally accepted accounting principles.

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

Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure 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 the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in rela tion to the financial statements being audited may
occur and not be detected within a timely pe riod by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we considered to be material weaknesses as defined above as of
October 31, 1997.

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.



                                                       /s/KPMG PEAT MARWICK LLP
                                                       KPMG PEAT MARWICK LLP


Denver, Colorado
November 21, 1997



THE BOARD OF DIRECTORS AND SHAREHOLDERS OF
OPPENHEIMER SERIES FUND, INC.:


In planning and performing our audit of the financial statements of Oppenheimer
LifeSpan Income Fund, Oppenheimer LifeSpan Balanced Fund and Oppenheimer
LifeSpan Growth Fund (collec tively Oppenheimer Series Fund, Inc.) for the year
ended October 31, 1997, we considered its internal control structure, 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
the internal control structure.

The management of Oppenheimer Series Fund, Inc. is responsible for establishing
and maintaining an internal control structure. In fulfilling this
responsibility, estimates and judgments by manage ment are required to assess
the expected benefits and related costs of internal control structure policies
and procedures. Two of the objectives of an internal control structure 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 man agement's authorization and
recorded properly to permit preparation of financial statements in conformity
with generally accepted accounting principles.

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

Our consideration of the internal control structure would not necessarily
disclose all matters in the internal control structure 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 the specific internal control structure elements does not reduce to
a relatively low level the risk that errors or irregularities in amounts that
would be material in rela tion to the financial statements being audited may
occur and not be detected within a timely pe riod by employees in the normal
course of performing their assigned functions. However, we noted no matters
involving the internal control structure, including procedures for safeguarding
securities, that we considered to be material weaknesses as defined above as of
October 31, 1997.

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.



                                                       /s/KPMG PEAT MARWICK LLP
                                                       KPMG PEAT MARWICK LLP


Denver, Colorado
November 21, 1997

<PAGE>

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 period ended 
October 31, 1997, amounts have been reclassified to reflect an increase in 
undistributed net investment income of $36,950. Additional paid-in capital was 
decreased by the same amount.

<PAGE>

The Funds adjusted the classification of net investment income and capital gain
(loss) to reflect other differences between financial statement amounts and
distributions determined in accordance with income tax regulations. Changes in
classification during the year ended October 31, 1997 are shown below:


                              Adjustments for the Year Ended October 31, 1997
                            Undistributed Net         Accumulated Net Realized 
                            Investment Income         Gain on Investments
LifeSpan Income Fund                 $  2,079                     $(2,079)
LifeSpan Balanced Fund                 (8,461)                      8,461
LifeSpan Growth Fund                  (14,946)                     14,946


<PAGE>

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 period ended 
October 31, 1997, amounts have been reclassified to reflect an increase in 
undistributed net investment income of $43,907. Accumulated net realized gain on
investments was decreased by the same amount.

ACQUISITION OF OPPENHEIMER VALUE STOCK FUND

On July 25, 1997, the Fund acquired all the net assets of Oppenheimer Value
Stock, pursuant to an agreement and plan of reorganization approved by the
Oppenheimer Value Stock Fund shareholders on July 21, 1997. The Fund issued
7,652,373, 2,351,076 and 150,017 shares of beneficial interest for Class A,
Class B and Class C, respectively, valued at $178,988,994, $55,109,219, and
$3,478,897, in exchange for the net assets, resulting in combined Class A net
assets of $356,598,856, Class B net assets of $74,391,341 and Class C net assets
of $8,707,171 on July 25, 1997. The net assets acquired included net unrealized
appreciation of $79,130,574. The exchange qualified as a tax-free reorganization
for federal income tax purposes.


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