Three Promising Prospects

These three companies showed up on my latest check at the Magic Formula website:

• PW Eagle Industries (PWEI) - This company makes PVC pipe and PE tubing, used in irrigation, plumbing, natural gas pipelines, and telecommunications, throughout North America. It is significantly undervalued at $36.16/share (with an earnings yield of 37%). I'm adding this company to replace PLAY, which is being bought out by NVidia.
  
  These next two are not quite the bargain that PWEI is:
  
• Western Refining (WNR) operates in the Southwest. Its next earnings release is on November 13th, and it has an 18% earnings yield. Current price is $25.04
  
  
• Frontier Oil (FTO) - Another refiner, Frontier has two refineries, in Wyoming and Kansas. It specializes in heavy sour crude (as opposed to light sweet crude). This type of oil is more expensive to refine, and cheaper to buy. The spread between light sweet and heavy sour has been especially pronounced lately, leading to more profits for FTO. It, too, has an 18% earnings yield, and is currently $30.71/share. The company has over $3/share in cash, to help it weather any difficulties.