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): May 1, 2009

SOUTHWEST BANCORP, INC.

(Exact name of registrant as specified in its charter)

Oklahoma
(State or other jurisdiction
of incorporation) 000-23064
(Commission file
number) 73-1136584
(IRS Employer
Identification No)

608 South Main Street, Stillwater, Oklahoma
(Address of Principal Executive Offices) 74074
(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:

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01 Regulation FD Disclosure.

     Representatives of the Registrant are scheduled to make presentations to various investors and securities professionals beginning on May 5, 2009. A copy of the materials to be discussed at the presentations is being furnished as Exhibit 99 to this report, and is incorporated herein by reference.

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-Presentation.

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/ Kerby E. Crowell
	Kerby E. Crowell
	Executive Vice President, Chief Financial Officer and Secretary

Dated: May 1, 2009.