Natural Gas Services Gr (NYSE:NGS) reported quarterly earnings of $0.47 per share which beat the analyst consensus estimate of $0.40 by 17.5 percent. This is a 14.63 percent increase over earnings of $0.41 per share from the same period last year. The company reported quarterly sales of $51.401 million which beat the analyst consensus estimate of $49.995 million by 2.81 percent. This is a 24.21 percent increase over sales of $41.382 million the same period last year.