<ARTICLE>     9
<LEGEND>
RESTATED FINANCIAL DATA SCHEDULE
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM SOUTHWEST 
BANCORP'S QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED MARCH 31, 1999, 
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>     1,000
       
                                                    
<PERIOD-TYPE>                                          3-MOS
<FISCAL-YEAR-END>                                                          DEC-31-1999
<PERIOD-START>                                                             JAN-01-1999
<PERIOD-END>                                                               MAR-31-1999
<CASH>                                                                          21,525
<INT-BEARING-DEPOSITS>                                                           1,223
<FED-FUNDS-SOLD>                                                                     0
<TRADING-ASSETS>                                                                     0
<INVESTMENTS-HELD-FOR-SALE>                                                     99,287
<INVESTMENTS-CARRYING>                                                          72,990
<INVESTMENTS-MARKET>                                                            73,823
<LOANS>                                                                        813,606
<ALLOWANCE>                                                                     10,982
<TOTAL-ASSETS>                                                               1,037,285
<DEPOSITS>                                                                     844,420
<SHORT-TERM>                                                                    94,368
<LIABILITIES-OTHER>                                                              8,315
<LONG-TERM>                                                                     25,013
<PREFERRED-MANDATORY>                                                                0
<PREFERRED>                                                                          0
<COMMON>                                                                         4,080
<OTHER-SE>                                                                      61,089
<TOTAL-LIABILITIES-AND-EQUITY>                                               1,037,285
<INTEREST-LOAN>                                                                 17,258
<INTEREST-INVEST>                                                                2,554
<INTEREST-OTHER>                                                                     4
<INTEREST-TOTAL>                                                                19,816
<INTEREST-DEPOSIT>                                                               8,600
<INTEREST-EXPENSE>                                                              10,376
<INTEREST-INCOME-NET>                                                            9,440
<LOAN-LOSSES>                                                                      675
<SECURITIES-GAINS>                                                                  81
<EXPENSE-OTHER>                                                                  7,246
<INCOME-PRETAX>                                                                  3,287
<INCOME-PRE-EXTRAORDINARY>                                                       3,287
<EXTRAORDINARY>                                                                      0
<CHANGES>                                                                            0
<NET-INCOME>                                                                     2,110
<EPS-PRIMARY>                                                                     0.55
<EPS-DILUTED>                                                                     0.54
<YIELD-ACTUAL>                                                                    8.13
<LOANS-NON>                                                                      3,616
<LOANS-PAST>                                                                       238
<LOANS-TROUBLED>                                                                     0
<LOANS-PROBLEM>                                                                 32,692
<ALLOWANCE-OPEN>                                                                10,401
<CHARGE-OFFS>                                                                      258
<RECOVERIES>                                                                       164
<ALLOWANCE-CLOSE>                                                               10,982
<ALLOWANCE-DOMESTIC>                                                            10,982
<ALLOWANCE-FOREIGN>                                                                  0
<ALLOWANCE-UNALLOCATED>                                                          3,020