Diamondback Energy (NASDAQ:FANG) reported quarterly earnings of $6.48 per share which beat the analyst consensus estimate of $6.08 by 6.58 percent. This is a 142.7 percent increase over earnings of $2.67 per share from the same period last year. The company reported quarterly sales of $5.562 billion which beat the analyst consensus estimate of $4.935 billion by 12.71 percent. This is a 51.22 percent increase over sales of $3.678 billion the same period last year.