[ARTICLE] 6
[CIK] 0000797480
[NAME] SMITH BARNEY NATUARL RESOURCES FUND INC. CLASS B
<TABLE>
<S>                             <C>
[PERIOD-TYPE]                   6-MOS
[FISCAL-YEAR-END]                          OCT-31-1999
[PERIOD-END]                               APR-30-1999
[INVESTMENTS-AT-COST]                       59,622,006
[INVESTMENTS-AT-VALUE]                      64,453,063
[RECEIVABLES]                                1,468,123
[ASSETS-OTHER]                                  42,343
[OTHER-ITEMS-ASSETS]                        10,610,950
[TOTAL-ASSETS]                              76,574,479
[PAYABLE-FOR-SECURITIES]                       336,375
[SENIOR-LONG-TERM-DEBT]                              0
[OTHER-ITEMS-LIABILITIES]                   10,718,991
[TOTAL-LIABILITIES]                         11,055,366
[SENIOR-EQUITY]                                      0
[PAID-IN-CAPITAL-COMMON]                    80,499,289
[SHARES-COMMON-STOCK]                        1,555,425
[SHARES-COMMON-PRIOR]                        1,831,371
[ACCUMULATED-NII-CURRENT]                       85,984
[OVERDISTRIBUTION-NII]                               0
[ACCUMULATED-NET-GAINS]                              0
[OVERDISTRIBUTION-GAINS]                    19,897,217
[ACCUM-APPREC-OR-DEPREC]                     4,831,057
[NET-ASSETS]                                65,519,113
[DIVIDEND-INCOME]                              567,927
[INTEREST-INCOME]                               70,147
[OTHER-INCOME]                                       0
[EXPENSES-NET]                                 553,064
[NET-INVESTMENT-INCOME]                         85,010
[REALIZED-GAINS-CURRENT]                   (3,883,792)
[APPREC-INCREASE-CURRENT]                   13,556,040
[NET-CHANGE-FROM-OPS]                        9,757,258
[EQUALIZATION]                                       0
[DISTRIBUTIONS-OF-INCOME]                            0
[DISTRIBUTIONS-OF-GAINS]                             0
[DISTRIBUTIONS-OTHER]                                0
[NUMBER-OF-SHARES-SOLD]                        411,590
[NUMBER-OF-SHARES-REDEEMED]                    687,536
[SHARES-REINVESTED]                                  0
[NET-CHANGE-IN-ASSETS]                       5,967,077
[ACCUMULATED-NII-PRIOR]                              0
[ACCUMULATED-GAINS-PRIOR]                            0
[OVERDISTRIB-NII-PRIOR]                          6,373
[OVERDIST-NET-GAINS-PRIOR]                  16,006,078
[GROSS-ADVISORY-FEES]                          187,517
[INTEREST-EXPENSE]                                   0
[GROSS-EXPENSE]                                553,064
[AVERAGE-NET-ASSETS]                        25,520,499
[PER-SHARE-NAV-BEGIN]                            16.00
[PER-SHARE-NII]                                  00.01
[PER-SHARE-GAIN-APPREC]                          03.01
[PER-SHARE-DIVIDEND]                                 0
[PER-SHARE-DISTRIBUTIONS]                            0
[RETURNS-OF-CAPITAL]                                 0
[PER-SHARE-NAV-END]                              19.02
[EXPENSE-RATIO]                                  02.52
[AVG-DEBT-OUTSTANDING]                               0
[AVG-DEBT-PER-SHARE]                                 0
</TABLE>