The History of a Family of Banks

Our History

On March 12, 1987, several investors formed Olney Bancshares of Texas, Inc. That holding company purchased its first bank, the First National Bank of Olney in Olney, Texas, soon thereafter. What followed was a series of strategic acquisitions in Texas with the purchase of community banks in Seymour, Coleman, Graham, Breckenridge, Canadian, Childress, Borger, Vega, Stinnett, Panhandle, Follett and Friona.

In 2005, Olney Bancshares chose to diversify its banking operations north of the Red River with purchases in five Oklahoma communities including Oklahoma City, El Reno, Enid, Hennessey and Kingfisher that became known as Rose Rock Bank. In 2007, Olney Bancshares again expanded its holdings with the purchase of Interbank in the western Oklahoma communities of Elk City, Sayre, Clinton, and Hobart, and also Union Bank in Oklahoma City. On December 31, 2010, Olney Bancshares merged its existing charters into one and named the newly chartered institution InterBank, bringing the total assets of the bank to over $1.6 billion. In July of 2011, InterBank added a location in Guthrie, Oklahoma, and in 2013, InterBank acquired Town and Country Bank in Stephenville, Texas which also added locations in Aledo, Bluff Dale, Glen Rose and Granbury, Texas. In February 2014, InterBank acquired Park Cities Bank in Dallas, TX which added banking locations in Dallas and Fort Worth, Texas.


Today, InterBank operates over 30 locations in Texas and Oklahoma and has assets of over $2 billion. We strive to provide outstanding service to meet the needs of our customers and contribute to the economic strength of the communities we serve. Through our associates at each location, we are committed to providing a high level of personal and professional customer service in a community bank setting while maintaining our commitment to personal integrity, customer service and community involvement.

Named as one of the Top Performing Mid-Sized Banks in 2013 by the ABA Banking Journal, we plan to continue our long history of success. We look forward to serving you.

Quarterly Statement of Condition


InterBank’s Mission

The mission of InterBank is to achieve banking excellence that betters the individual, the company, and the community through commitment to personal and corporate integrity along with customer and company profitability, within a positive workplace.

Personal Security

We are committed to ensuring your financial security. Check back often to learn more about the latest scams.

Strength On Your Side

FDIC insurance is now $250,000. Click the Learn More link for details.

News And Promotions

What's going on now at your Hometown bank?