Westlake Chemical (NYSE:WLKP) reported quarterly earnings of $0.41 per share which missed the analyst consensus estimate of $0.42 by 2.38 percent. This is a 4.65 percent decrease over earnings of $0.43 per share from the same period last year. The company reported quarterly sales of $323.049 million which beat the analyst consensus estimate of $313.000 million by 3.21 percent. This is a 11.37 percent increase over sales of $290.060 million the same period last year.