Provides personal, small business, and corporate services at its branches in Bartlesville, Broken Arrow, Choctaw, Del City, Dewey, Duncan, Edmond, Jay, Kansas, Lawton, Norman, Nowata, Oklahoma City, Owasso, Sapulpa, Shawnee, Stilwell, Tulsa, Walters, Westville, and Yukon.

Provides personal and commercial banking services including internet banking in Oklahoma City with branches in Ardmore, Blackwell, Braman, Chattanooga, Coweta, Davenport, Duncan, Edmond, Frederick, Glenpool, Guthrie, Harrah, Hobart, Hugo, Jenks, Kingfisher, Kingston, Konawa, Lawton - Fort Sill, McAlester, McLoud, Madill, Marietta, Marlow, Meeker, Muskogee, Norman, Prague, Sand Springs, Seminole, Shawnee, Stillwater, Stratford, Stroud, Sulphur, Tahlequah, Tecumseh, Thackerville, Tishomingo, Tulsa, and Weatherford.

Provides checking, savings, retirement, CD, and investment services in Lawton with branches in Bartlesville, Duncan, El Reno, Miami, Oklahoma City, Ponca City, Sallisaw, and Tulsa.

Provides checking, savings, loans, business accounts, and internet banking services from its headquarters in Mangum and locations in Granite, Lawton, and Willow.