Southwest Bancorp, Inc. (NASDAQ: OKSB), the Oklahoma-based parent company of Stillwater National Bank & Trust Company (SNB), opened SNB Bank of Wichita in the Wilson Estates Office Park in Wichita, Kansas in November 2003. Previously operating as an SNB loan production office, SNB Bank of Wichita became the newest chapter in the 112 year history of SNB, offering full-banking services and a suite of specialized services to selected markets.

SNB Bank of Wichita is a commercial bank focusing on financial services designed for healthcare professionals, attorneys, executives and real estate entrepreneurs. Its highly specialized treasury, lending and business solutions have particular appeal to the healthcare industry.

A substantial portion of Southwest's current business and focus for the future is delivery of services for local businesses, their primary employees, and other managers and professionals. Southwest seeks to be the premier financial company for its selected markets. Information regarding Southwest can be retrieved via the Internet, at www.oksb.com. Southwest and SNB offer commercial and consumer lending, deposit, and investment services, and specialized cash management, consulting and other financial services from offices in three states: in Kansas -- SNB Bank of Wichita in Wichita, Kansas, Stillwater National Bank, loan production office in Overland Park, Kansas. In Oklahoma -- Stillwater National Bank in Stillwater, Tulsa, Oklahoma City, and Chickasha, Oklahoma; In Texas -- SNB Bank of Dallas in Frisco and Dallas, Texas; SNB Bank of Austin in Austin, Texas, SNB Bank of San Antonio in San Antonio, Texas and SNB Bank of Houston in Houston, Texas.  Southwest Bancorp also operates a marketing presence in the Student Union at Oklahoma State University in Stillwater, at the University of Oklahoma Health Sciences Center in Oklahoma City and on the Internet.

Information regarding products and services of SNB Bank of Wichita, including SNB DirectBanker®, its online banking product, can be retrieved via the Internet, at www.snbwichita.com. SNB’s website and online banking technology are frequently updated in response to the changing needs of SNB's large base of Internet banking customers.

In addition to financial solutions, Southwest Bancorp offers business consulting services with:

• Business Consulting Group - provides strategic planning, process analysis and assessment, as well as ongoing implementation assistance to businesses in a number of industries.
  
• Healthcare Strategic Support Inc. - a healthcare consulting company whose expertise helps healthcare organizations increase profitability, streamline complex business processes, improve patient satisfaction and exceed expectations for growth and performance.