<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED STATEMENT OF EARNINGS FOR THE 1995 FISCAL YEAR'S THIRD QUARTER ENDED MAY 31, 1995, AND THE CONSOLIDATED BALANCE SHEET AT MAY 31, 1995, FOR ONEOK INC. AND SUBSIDIARIES AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> AUG-31-1995 <PERIOD-START> MAR-01-1995 <PERIOD-END> MAY-31-1995 <CASH> 25,575 <SECURITIES> 0 <RECEIVABLES> 90,174 <ALLOWANCES> 0 <INVENTORY> 82,750 <CURRENT-ASSETS> 206,697 <PP&E> 1,265,427 <DEPRECIATION> 504,941 <TOTAL-ASSETS> 1,189,383 <CURRENT-LIABILITIES> 183,263 <BONDS> 0 <COMMON> 201,404 <PREFERRED-MANDATORY> 0 <PREFERRED> 9,000 <OTHER-SE> 197,208 <TOTAL-LIABILITY-AND-EQUITY> 1,189,383 <SALES> 0 <TOTAL-REVENUES> 304,498 <CGS> 0 <TOTAL-COSTS> 281,244 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 9,403 <INCOME-PRETAX> 0 <INCOME-TAX> 4,811 <INCOME-CONTINUING> 9,040 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 9,040 <EPS-PRIMARY> .33 <EPS-DILUTED> .33