<SEC-DOCUMENT>0000914374-15-000111-index.html : 20151001
<SEC-HEADER>0000914374-15-000111.hdr.sgml : 20151001
<ACCEPTANCE-DATETIME>20150826160510
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000914374-15-000111
CONFORMED SUBMISSION TYPE:	CORRESP
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20150826

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SOUTHWEST BANCORP INC
		CENTRAL INDEX KEY:			0000914374
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				731136584
		STATE OF INCORPORATION:			OK
		FISCAL YEAR END:			1220

	FILING VALUES:
		FORM TYPE:		CORRESP

	BUSINESS ADDRESS:	
		STREET 1:		608 SOUTH MAIN STREET
		CITY:			STILLWATER
		STATE:			OK
		ZIP:			74074
		BUSINESS PHONE:		4053722230

	MAIL ADDRESS:	
		STREET 1:		608 SOUTH MAIN STREET
		CITY:			STILLWATER
		STATE:			OK
		ZIP:			74074
</SEC-HEADER>
<DOCUMENT>
<TYPE>CORRESP
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>oksb-20150826correspg001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: oksb-20150826correspg001.jpg

</DOCUMENT>
</SEC-DOCUMENT>