First Financial Bankshares, Inc. is a financial holding company. Through the Company’s subsidiary banks, it conducts a full-service commercial banking business. Its service centers are located in Central, North Central and West Texas. As of December 31, 2011, it had 52 financial centers across Texas, with 10 locations in Abilene, two locations in Cleburne, two locations in Stephenville, three locations in Granbury, two locations in San Angelo, three locations in Weatherford, and one location each in Mineral Wells, Hereford, Sweetwater, Eastland, Ranger, Rising Star, Cisco, Southlake, Aledo, Willow Park, Brock, Alvarado, Burleson, Crowley, Keller, Trophy Club, Boyd, Bridgeport, Decatur, Roby, Trent, Merkel, Clyde, Moran, Albany, Midlothian and Glen Rose. During the year ended December 31, 2011, the Company merged First Financial Bankshares of Delaware, Inc. and First Financial Investments of Delaware, Inc. into First Financial Bankshares, Inc.