Cullen/Frost Bankers (NYSE: CFR) reported quarterly earnings of $2.70 per share which beat the analyst consensus estimate of $2.53 by 6.72 percent. This is a 12.97 percent increase over earnings of $2.39 per share from the same period last year. The company reported quarterly sales of $598.347 million which beat the analyst consensus estimate of $587.198 million by 1.90 percent. This is a 9.41 percent increase over sales of $546.877 million the same period last year.