<html>
<head><title>
Prepared and filed by St Ives Financial
</title>
</head>
<body bgcolor="#FFFFFF">
<page>
<p align="center"><font size="2" face="serif"><b>UNITED STATES<br>
SECURITIES AND EXCHANGE COMMISSION</b><br>Washington, DC  20549</font></p>
<p align="center"><font size="2" face="serif"><b>FORM 8-K</b></font></p>
<p align="center"><font size="2" face="serif">CURRENT REPORT</font></p>
<p align="center"><font size="2" face="serif">Pursuant to Section 13 or 15(d) of the<br>Securities Exchange Act of 1934</font></p>
<p align="center"><font size="2" face="serif">Date of Report (Date of earliest event reported): April 28, 2006</font></p>
<p align="center"><font size="2" face="serif"><b>SOUTHWEST BANCORP, INC.<br></b>(Exact name of registrant as specified in its charter)</font></p>
<table width="100%" cellspacing="0" cellpadding="0" align="center" border="0">
<tr align="center" valign="top" bgcolor="#ffffff">
<td width="33%"><font size="2" face="serif">Oklahoma</font></td>
<td width="33%"><font size="2" face="serif">000-23064</font></td>
<td width="33%"><font size="2" face="serif">73-1136584</font></td>
</tr>
<tr align="center" valign="top" bgcolor="#FFFFFF">
<td width="33%"><font size="2" face="serif">(State or other jurisdiction</font></td>
<td width="33%"><font size="2" face="serif">(Commission file</font></td>
<td width="33%"><font size="2" face="serif">(IRS Employer</font></td>
</tr>
<tr align="center" valign="top" bgcolor="#FFFFFF">
<td width="33%"><font size="2" face="serif">of incorporation)</font></td>
<td width="33%"><font size="2" face="serif">number)</font></td>
<td width="33%"><font size="2" face="serif">Identification No)</font></td>
</tr>
</table>
<p align="center"><font size="2" face="serif">608 South Main Street, Stillwater, Oklahoma  74074<br>(Address of Principal Executive Offices)     (Zip Code)</font></p>
<p align="center"><font size="2" face="serif">Registrant's telephone number, including area code:  (405) 372-2230</font></p>
<p align="left"><font size="2" face="serif">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:</font></p>
<p align="left"><font size="2" face="serif"><img src="emptybox.gif"> Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></p>
<p align="left"><font size="2" face="serif"><img src="emptybox.gif"> Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>
<p align="left"><font size="2" face="serif"><img src="emptybox.gif"> Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></p>
<p align="left"><font size="2" face="serif"><img src="emptybox.gif"> Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></p>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
   <tr>
    <td height="1" valign="top" bgcolor="#000000"></td>
  </tr>
    <tr>
    <td height="2" valign="top" bgcolor="#FFFFFF"></td>
  </tr>
 <tr>
    <td height="4" valign="bottom" bgcolor="#000000"></td>
  </tr>
</table><hr noshade align="center" width="100%" size="2">
<div style="page-break-before:always"></div>
<page>
<p align="left"><font size="2" face="serif"><b>Item 2.02. Results of Operations and Financial Condition.</b></font></p>
<p align="left"><font size="2" face="serif"><b>Item 7.01 Regulation FD Disclosure.</b></font></p>
<p align="left"><font size="2" face="serif">On April 28, 2006, Southwest Bancorp, Inc. issued a press release regarding its results of operations and financial condition for the quarter ended March 31, 2006. The text of the press release is included as Exhibit 99 to this report. Southwest Bancorp will include final financial statements and additional analyses as part of its Form 10-Q for the quarter ended March 31, 2006.</font></p>
<p align="left"><font size="2" face="serif"><b>Item 9.01 Financial Statements and Exhibits.</b></font></p>
<p align="left"><font size="2" face="serif">(a) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Financial statements of businesses acquired. Not applicable. </font></p>
<p align="left"><font size="2" face="serif">(b) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pro forma financial information. Not applicable.</font></p>
<p align="left"><font size="2" face="serif">(c) &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exhibits. Exhibit 99-Press Release dated April 28, 2006.</font></p>
<p align="center"><font size="2" face="serif">Signatures</font></p>
<div style="text-indent: 3%">
<p align="left"><font size="2" face="serif">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font></p></div>
<table width="100%" cellspacing="0" cellpadding="0" border="0"><tr valign="top">
<td align="left" width="50%"><font size="2" face="serif">&nbsp;</font></td>
<td colspan="2" align="left"><font size="2" face="serif">SOUTHWEST BANCORP, INC.</font><font size="2" face="serif">&nbsp;</font></td>
</tr>
<tr valign="top">
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td width="5%" align="left"><div align="right"><font size="2" face="serif">By:&nbsp;&nbsp;</font></div></td>
<td width="45%" align="left"><font size="2" face="serif"><u>/s/ Rick Green</u></font></td>
</tr>
<tr valign="top">
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td width="5%" align="left"><font size="2" face="serif">&nbsp;</font></td>
<td width="45%" align="left"><font size="2" face="serif">Rick Green</font></td>
</tr>
<tr valign="top">
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td width="5%" align="left"><font size="2" face="serif">&nbsp;</font></td>
<td width="45%" align="left"><font size="2" face="serif">President and</font></td>
</tr>
<tr valign="top">
<td align="left"><font size="2" face="serif">&nbsp;</font></td>
<td width="5%" align="left"><font size="2" face="serif">&nbsp;</font></td>
<td width="45%" align="left"><font size="2" face="serif">Chief Executive Officer</font></td>
</tr>
</table>
<p align="left"><font size="2" face="serif">Dated: April 28, 2006</font></p>
<hr noshade align="center" width="100%" size="2">
</body>
</html>
[{"type": "8-K", "sequence": "1", "filename": "b413019_8k.htm", "description": "FORM 8-K", "secsgml_size_bytes": 6324}]
{"company-data": {"conformed-name": "SOUTHWEST BANCORP INC", "cik": "0000914374", "assigned-sic": "6021", "irs-number": "731136584", "state-of-incorporation": "OK", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-23064", "film-number": "06794470"}, "business-address": {"street1": "608 SOUTH MAIN STREET", "city": "STILLWATER", "state": "OK", "zip": "74074", "phone": "4053722230"}, "mail-address": {"street1": "608 SOUTH MAIN STREET", "city": "STILLWATER", "state": "OK", "zip": "74074"}}
Prepared and filed by St Ives Financial
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, DC  20549
FORM 8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): April 28, 2006
SOUTHWEST BANCORP, INC.
(Exact name of registrant as specified in its charter)
Oklahoma
000-23064
73-1136584
(State or other jurisdiction
(Commission file
(IRS Employer
of incorporation)
number)
Identification No)
608 South Main Street, Stillwater, Oklahoma  74074
(Address of Principal Executive Offices)     (Zip Code)
Registrant's telephone number, including area code:  (405) 372-2230
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Item 2.02. Results of Operations and Financial Condition.
Item 7.01 Regulation FD Disclosure.
On April 28, 2006, Southwest Bancorp, Inc. issued a press release regarding its results of operations and financial condition for the quarter ended March 31, 2006. The text of the press release is included as Exhibit 99 to this report. Southwest Bancorp will include final financial statements and additional analyses as part of its Form 10-Q for the quarter ended March 31, 2006.
Item 9.01 Financial Statements and Exhibits.
(a)      Financial statements of businesses acquired. Not applicable.
(b)      Pro forma financial information. Not applicable.
(c)      Exhibits. Exhibit 99-Press Release dated April 28, 2006.
Signatures
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
SOUTHWEST BANCORP, INC.
By:
/s/ Rick Green
Rick Green
President and
Chief Executive Officer
Dated: April 28, 2006