Bank SNB history video
Watch the video of our journey to become Bank SNB

In 1894, we opened our doors in Stillwater, Oklahoma as Stillwater State Bank. Over the past century, our customers’ needs have changed drastically, so we’ve changed with them. From providing the first auto loan in Oklahoma to offering the first drive-thru in the state, we have led the way in adapting to the resources and convenience our customers need.

In 1900, we changed our name to Stillwater National Bank, and the legacy of “SNB” was born. For decades, we have built relationships with Oklahoma-based companies who relied on us to help grow their businesses – many of whom are still customers today. 

In 1993, we became a public company, which holds us to an even higher standard of service, efficiency and continuous improvement to benefit our customers and shareholders. We are traded on the NASDAQ under the trading symbol OKSB.

In 2001, Stillwater National Bank expanded into Kansas by opening a branch in Wichita. The following year marked our entry into Texas with the launch of a Frisco location, which shortly thereafter led to our expansion across Texas. In 2007, we broadened our presence in Kansas by purchasing Bank of Kansas.

In 2015, we acquired First Commercial Bank, which strengthened our network in Oklahoma and launched an expansion into Colorado. Bank SNB now has locations in Denver and Colorado Springs.

In October 2017, Southwest Bancorp, Inc. merged into Simmons First National Corporation, an Arkansas based financial holding company. Simmons First National Corporation's common stock trades on the NASDAQ Global Select Market under the symbol SFNC.

Over the years and across all our markets, Bank SNB has remained committed to giving our customers the banking products and professionals they would expect from a large bank with the customer service and community commitment of a local bank.