Exhibit 21

SUBSIDIARIES OF THE REGISTRANT

The following is a list of all subsidiaries of the Registrant as of March 7, 2014:

Jurisdiction of

Name Incorporation OKSB Statutory Trust IConnecticut SBI Capital Trust IIDelaware Southwest Capital Trust IIDelaware

SNB Capital Corporation Oklahoma Bank SNB, National Association United States Quad J Holdings, LLC* Oklahoma

Cash Source, Inc.* Oklahoma Stillwater National Building Corporation* Oklahoma

CRK Properties, Inc.* Oklahoma CRK Technologies, LLC ** Oklahoma CRK Stretford, LLC** Oklahoma

Bastrop CRK, LLC** Oklahoma

SNB Real Estate Holdings, Inc. * Delaware

SNB REIT, Inc.*** Delaware

Stillwater Properties, Inc.* Oklahoma

Grand Hill Investments, LLC**** Oklahoma

*Direct subsidiary of Bank SNB, National Association

**Direct subsidiary of CRK Properties, Inc.

***Direct subsidiary of SNB Real Estate Holdings, Inc.

****Direct subsidiary of Stillwater Properties, Inc.