Buenaventura Mining Co (NYSE:BVN) reported quarterly earnings of $0.93 per share which missed the analyst consensus estimate of $1.03 by 9.71 percent. This is a 158.33 percent increase over earnings of $0.36 per share from the same period last year. The company reported quarterly sales of $529.000 million which beat the analyst consensus estimate of $118.442 million by 346.63 percent. This is a 43.17 percent increase over sales of $369.500 million the same period last year.