| Pcs Purifies Phosphates (Harrison, OH)
|
| Peak Sulfur Inc (Shreveport, LA)
|
| Pennzoil Quaker-State Co (Northborough, MA)
|
| Pepcon Systems (Cedar City, UT)
|
| Performance Products Inc (Cockeysville, MD)
|
| Performex Technologies Ltd (Warren, OH)
|
| Permuthane Coatings (Peabody, MA)
|
| Petroleum Products Inc (Northumberland, PA)
|
| Pettit Oil Co (Tacoma, WA)
|
| Petty Oil Co (Pearsall, TX)
|
| Phibro-Tech Inc (Garland, TX)
|
| Pine Lake Corn Processors (Steamboat Rock, IA)
|
| Pinnacle Oil Inc (Indianapolis, IN)
|
| Pinnacle Resources Inc (White Hall, AR)
|
| Pittsburgh Coatings (Ambridge, PA)
|
| Pms Products (Holland, MI)
|
| Polar Environmental Service (Ferndale, MI)
|
| Poly Cast Industries (Bay Shore, NY)
|
| Power Klean (Largo, FL)
|
| Power Line Industries Inc (Riverton, UT)
|
| Praxair Inc (Augusta, GA)
|
| Precision Lubricants Inc (Denham Springs, LA)
|
| Premium Oil Co (Rockford, IL)
|
| Preserve International (Turlock, CA)
|
| Price-Driscoll Corp (Waterford, CT)
|
