
<TABLE> <S> <C>


<ARTICLE>                     9
<LEGEND>
     This schedule  contains summary  financial  information  extracted from BOK
Financial  Corporation's  10-Q  for the  period  ended  March  31,  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>                   3-mos
<FISCAL-YEAR-END>                              Dec-31-2000
<PERIOD-END>                                   Mar-31-2000
<CASH>                                           438,256
<INT-BEARING-DEPOSITS>                                 0
<FED-FUNDS-SOLD>                                  30,685
<TRADING-ASSETS>                                  15,043
<INVESTMENTS-HELD-FOR-SALE>                    2,604,584
<INVESTMENTS-CARRYING>                           206,365
<INVESTMENTS-MARKET>                             204,519
<LOANS>                                        4,719,799
<ALLOWANCE>                                       77,828
<TOTAL-ASSETS>                                 8,549,645
<DEPOSITS>                                     5,511,228
<SHORT-TERM>                                   1,893,818
<LIABILITIES-OTHER>                               87,476
<LONG-TERM>                                      456,445
<PREFERRED-MANDATORY>                                 13
<PREFERRED>                                           12
<COMMON>                                               3
<OTHER-SE>                                       576,920
<TOTAL-LIABILITIES-AND-EQUITY>                 8,549,645
<INTEREST-LOAN>                                  101,038
<INTEREST-INVEST>                                 43,243
<INTEREST-OTHER>                                   1,063
<INTEREST-TOTAL>                                 145,344
<INTEREST-DEPOSIT>                                46,036
<INTEREST-EXPENSE>                                81,666
<INTEREST-INCOME-NET>                             63,678
<LOAN-LOSSES>                                      2,639
<SECURITIES-GAINS>                                   (17)
<EXPENSE-OTHER>                                   74,616
<INCOME-PRETAX>                                   33,214
<INCOME-PRE-EXTRAORDINARY>                        24,813
<EXTRAORDINARY>                                        0
<CHANGES>                                              0
<NET-INCOME>                                      24,813
<EPS-BASIC>                                       0.50
<EPS-DILUTED>                                       0.45
<YIELD-ACTUAL>                                      3.54
<LOANS-NON>                                       18,602
<LOANS-PAST>                                       9,704
<LOANS-TROUBLED>                                       0
<LOANS-PROBLEM>                                   70,997
<ALLOWANCE-OPEN>                                  76,234
<CHARGE-OFFS>                                      2,264
<RECOVERIES>                                       1,219
<ALLOWANCE-CLOSE>                                 77,828
<ALLOWANCE-DOMESTIC>                              77,828
<ALLOWANCE-FOREIGN>                                    0
<ALLOWANCE-UNALLOCATED>                                0



</TABLE>
