Otter Tail (NASDAQ:OTTR) reported quarterly earnings of $1.73 per share which beat the analyst consensus estimate of $1.49 by 16.11 percent. This is a 6.79 percent increase over earnings of $1.62 per share from the same period last year. The company reported quarterly sales of $347.026 million which beat the analyst consensus estimate of $339.100 million by 2.34 percent. This is a 2.87 percent increase over sales of $337.353 million the same period last year.