<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 JUNE 30, 1999, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> JUN-30-1999 <CASH> 22,787 <INT-BEARING-DEPOSITS> 992 <FED-FUNDS-SOLD> 7,500 <TRADING-ASSETS> 0 <INVESTMENTS-HELD-FOR-SALE> 96,862 <INVESTMENTS-CARRYING> 74,868 <INVESTMENTS-MARKET> 74,803 <LOANS> 787,134 <ALLOWANCE> 10,941 <TOTAL-ASSETS> 1,019,738 <DEPOSITS> 823,086 <SHORT-TERM> 98,234 <LIABILITIES-OTHER> 7,465 <LONG-TERM> 25,013 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 4,081 <OTHER-SE> 62,196 <TOTAL-LIABILITIES-AND-EQUITY> 1,020,075 <INTEREST-LOAN> 34,372 <INTEREST-INVEST> 5,065 <INTEREST-OTHER> 23 <INTEREST-TOTAL> 39,460 <INTEREST-DEPOSIT> 16,990 <INTEREST-EXPENSE> 20,523 <INTEREST-INCOME-NET> 18,937 <LOAN-LOSSES> 1,100 <SECURITIES-GAINS> 85 <EXPENSE-OTHER> 14,584 <INCOME-PRETAX> 7,115 <INCOME-PRE-EXTRAORDINARY> 7,115 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 4,565 <EPS-BASIC> 1.15 <EPS-DILUTED> 1.13 <YIELD-ACTUAL> 8.10 <LOANS-NON> 3,933 <LOANS-PAST> 174 <LOANS-TROUBLED> 0 <LOANS-PROBLEM> 31,576 <ALLOWANCE-OPEN> 10,401 <CHARGE-OFFS> 924 <RECOVERIES> 364 <ALLOWANCE-CLOSE> 10,941 <ALLOWANCE-DOMESTIC> 10,941 <ALLOWANCE-FOREIGN> 0 <ALLOWANCE-UNALLOCATED> 2,884