<ARTICLE> 9
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM SOUTHWEST
BANCORP'S QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED MARCH 31, 2000,
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<CASH>                                          28,295
<INT-BEARING-DEPOSITS>                           1,521
<FED-FUNDS-SOLD>                                     0
<TRADING-ASSETS>                                     0
<INVESTMENTS-HELD-FOR-SALE>                    153,283
<INVESTMENTS-CARRYING>                          69,094
<INVESTMENTS-MARKET>                            68,143
<LOANS>                                        903,179
<ALLOWANCE>                                     11,613
<TOTAL-ASSETS>                               1,185,348
<DEPOSITS>                                     905,492
<SHORT-TERM>                                   177,850
<LIABILITIES-OTHER>                             10,241
<LONG-TERM>                                     25,013
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         4,081
<OTHER-SE>                                      62,671
<TOTAL-LIABILITIES-AND-EQUITY>               1,185,348
<INTEREST-LOAN>                                 39,897
<INTEREST-INVEST>                                6,650
<INTEREST-OTHER>                                    46
<INTEREST-TOTAL>                                46,593
<INTEREST-DEPOSIT>                              20,901
<INTEREST-EXPENSE>                              26,622
<INTEREST-INCOME-NET>                           19,971
<LOAN-LOSSES>                                    1,800
<SECURITIES-GAINS>                                   0
<EXPENSE-OTHER>                                 14,724
<INCOME-PRETAX>                                  7,397
<INCOME-PRE-EXTRAORDINARY>                       7,397
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,860
<EPS-BASIC>                                       1.26
<EPS-DILUTED>                                     1.25
<YIELD-ACTUAL>                                    8.46
<LOANS-NON>                                     12,716
<LOANS-PAST>                                        81
<LOANS-TROUBLED>                                     0
<LOANS-PROBLEM>                                 26,023
<ALLOWANCE-OPEN>                                11,190
<CHARGE-OFFS>                                    1,793
<RECOVERIES>                                     1,793
<ALLOWANCE-CLOSE>                                  416
<ALLOWANCE-DOMESTIC>                            11,613
<ALLOWANCE-FOREIGN>                             11,613
<ALLOWANCE-UNALLOCATED>                          1,911