<TABLE> <S> <C>
<ARTICLE> 9
<LEGEND>
This schedule contains summary financial information extracted from BOK
Financial Corporation's 10-Q for the period ended September 30, 2000 and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<CIK> 0000875357
<NAME> BOK Financial Corporation
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-mos
<FISCAL-YEAR-END> Dec-31-2000
<PERIOD-END> Sep-30-2000
<CASH> 503,583
<INT-BEARING-DEPOSITS> 0
<FED-FUNDS-SOLD> 38,690
<TRADING-ASSETS> 18,218
<INVESTMENTS-HELD-FOR-SALE> 2,569,722
<INVESTMENTS-CARRYING> 230,453
<INVESTMENTS-MARKET> 230,081
<LOANS> 5,198,529
<ALLOWANCE> 81,445
<TOTAL-ASSETS> 9,016,000
<DEPOSITS> 5,746,335
<SHORT-TERM> 2,076,059
<LIABILITIES-OTHER> 89,840
<LONG-TERM> 456,887
13
12
<COMMON> 3
<OTHER-SE> 646,851
<TOTAL-LIABILITIES-AND-EQUITY> 9,016,000
<INTEREST-LOAN> 328,486
<INTEREST-INVEST> 133,531
<INTEREST-OTHER> 3,218
<INTEREST-TOTAL> 465,235
<INTEREST-DEPOSIT> 148,693
<INTEREST-EXPENSE> 265,540
<INTEREST-INCOME-NET> 199,695
<LOAN-LOSSES> 11,204
<SECURITIES-GAINS> (1,237)
<EXPENSE-OTHER> 223,497
<INCOME-PRETAX> 108,973
<INCOME-PRE-EXTRAORDINARY> 74,644
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 74,644
<EPS-BASIC> 1.50
<EPS-DILUTED> 1.34
<YIELD-ACTUAL> 3.59
<LOANS-NON> 37,179
<LOANS-PAST> 10,931
<LOANS-TROUBLED> 0
<LOANS-PROBLEM> 116,600
<ALLOWANCE-OPEN> 76,234
<CHARGE-OFFS> 9,067
<RECOVERIES> 3,074
<ALLOWANCE-CLOSE> 81,445
<ALLOWANCE-DOMESTIC> 81,445
<ALLOWANCE-FOREIGN> 0
<ALLOWANCE-UNALLOCATED> 0
</TABLE>