<SEC-DOCUMENT>0000914374-15-000110-index.html : 20150826
<SEC-HEADER>0000914374-15-000110.hdr.sgml : 20150826
<ACCEPTANCE-DATETIME>20150826160126
ACCESSION NUMBER:		0000914374-15-000110
CONFORMED SUBMISSION TYPE:	S-4/A
PUBLIC DOCUMENT COUNT:		4
FILED AS OF DATE:		20150826
DATE AS OF CHANGE:		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:		S-4/A
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-205521
		FILM NUMBER:		151076050

	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>S-4/A
<SEQUENCE>1
<FILENAME>oksb-20150826xS4.htm
<TEXT>
Document 1 - file: oksb-20150826xS4.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-8.1
<SEQUENCE>2
<FILENAME>oksb-20150826ex815cf690f.htm
<TEXT>
Document 2 - file: oksb-20150826ex815cf690f.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-8.2
<SEQUENCE>3
<FILENAME>oksb-20150826ex82723cd23.htm
<TEXT>
Document 3 - file: oksb-20150826ex82723cd23.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>oksb-20150826xex231.htm
<TEXT>
Document 4 - file: oksb-20150826xex231.htm

</DOCUMENT>
</SEC-DOCUMENT>