The parent company of SNB is Southwest Bancorp, Inc. ("Southwest"). Organized in 1981, Southwest's focus is to provide a high level of quality customer service with a wide range of services, products and technology driven convenience in response to its customer's needs. Southwest maintains an intense focus on specific performance goals designed to increase shareholder value. Southwest is the bank holding company for:

• Stillwater National Bank & Trust Company ("Stillwater National," "SNB"), chartered in 1894, offers commercial and deposit services from offices in Stillwater, Tulsa, Oklahoma City and Chickasha, Oklahoma, as well as Frisco, Dallas, Austin and San Antonio, Texas.
  
  

For complete information on Southwest Bancorp, Inc, please visit: www.oksb.com.