<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED CONDENSED STATEMENT OF INCOME FOR THE 1997 FISCAL YEAR ENDED
FEBRUARY 28, 1997, AND THE CONSOLIDATED CONDENSED BALANCE SHEET AT FEBRUARY 28,
1997, FOR ONEOK INC. AND SUBSIDIARIES AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          AUG-31-1997
<PERIOD-START>                             SEP-01-1996
<PERIOD-END>                               FEB-28-1997
<CASH>                                           6,095
<SECURITIES>                                         0
<RECEIVABLES>                                  232,948
<ALLOWANCES>                                         0
<INVENTORY>                                     50,932
<CURRENT-ASSETS>                               317,550
<PP&E>                                       1,386,538
<DEPRECIATION>                                 561,558
<TOTAL-ASSETS>                               1,333,414
<CURRENT-LIABILITIES>                          257,835
<BONDS>                                              0
<PREFERRED-MANDATORY>                          222,178
<PREFERRED>                                          0
<COMMON>                                         9,000
<OTHER-SE>                                     241,402
<TOTAL-LIABILITY-AND-EQUITY>                 1,333,414
<SALES>                                              0
<TOTAL-REVENUES>                               722,404
<CGS>                                                0
<TOTAL-COSTS>                                  622,669
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              17,838
<INCOME-PRETAX>                                 81,997
<INCOME-TAX>                                    31,481
<INCOME-CONTINUING>                             50,416
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    50,416
<EPS-PRIMARY>                                     1.84
<EPS-DILUTED>                                     1.84