| NFNorman Fox & CO | Industry | CA | — | ◇ UNVERIFIED |
| NLNortech Lubricants Distribution Solutions | Temple | TX | — | ◇ UNVERIFIED |
| NRNorth Regional Treatment Plant | Beaumont | TX | — | ◇ UNVERIFIED |
| NGNorthrop Grumman Systems | Brigham City | UT | — | ◇ UNVERIFIED |
| NSNorth Storage Facility | Mont Belvieu | TX | — | ◇ UNVERIFIED |
| NINox-crete, INC. | Omaha | NE | — | ◇ UNVERIFIED |
| NSNucor Steel Gallatin | Warsaw | KY | — | ◇ UNVERIFIED |
| NSNucor Steel Texas | Jewett | TX | — | ◇ UNVERIFIED |
| NYNucor Yamato Steel CO | Armorel | AR | — | ◇ UNVERIFIED |
| OPOcean Point Terminals (fka Limetree) | Christiansted | VI | — | ◇ UNVERIFIED |
| OTOil Technology, Inc./u.s. Steel Gary | Gary | IN | — | ◇ UNVERIFIED |
| OEOmg Electronic Chemicals INC | Maple Plain | MN | — | ◇ UNVERIFIED |
| OSOmni Specialty Packaging INC | Shreveport | LA | — | ◇ UNVERIFIED |
| OIOptiblend Industries-cambridge | Cambridge | OH | — | ◇ UNVERIFIED |
| OIOptiblend Industries Inc-miles City | Miles City | MT | — | ◇ UNVERIFIED |
| OLOrange Line Oil CO INC | Pomona | CA | — | ◇ UNVERIFIED |
| OCOrg Chem Group LLC | Evansville | IN | — | ◇ UNVERIFIED |
| OAOvako Ajax Incorporated | York | SC | — | ◇ UNVERIFIED |
| OTOwens-corning Trumbull Asphalt Linnton Plant | Portland | OR | — | ◇ UNVERIFIED |
| OCOxbow Calcining LLC | Kremlin | OK | — | ◇ UNVERIFIED |
| OCOxbow Calcining LLC - Baton Rouge Calcined Coke Plant | Baton Rouge | LA | — | ◇ UNVERIFIED |
| OMOxbow Midwest Calcining LLC | Lemont | IL | — | ◇ UNVERIFIED |
| PPP4 Production LLC | Rock Springs | WY | — | ◇ UNVERIFIED |
| PBPacific Biodiesel | Keaau | HI | — | ◇ UNVERIFIED |
| PCParamelt CORP | Rosemead | CA | — | ◇ UNVERIFIED |
| PPParamount Petroleum Corporation Refinery | Paramount | CA | — | ◇ UNVERIFIED |
| PHPar Hawaii Refining - Refinery | Kapolei | HI | — | ◇ UNVERIFIED |
| PMPar Montana, LLC - Billings Refinery | Billings | MT | — | ◇ UNVERIFIED |
| PWPar West Refinery | Kapolei | HI | — | ◇ UNVERIFIED |
| PRPasadena Refining System, INC. | Pasadena | TX | — | ◇ UNVERIFIED |
| POPeerless Oil & Chemicals, INC - Penuelas | Penuelas | PR | — | ◇ UNVERIFIED |
| PPPeerless Products | Fort Scott | KS | — | ◇ UNVERIFIED |
| PSPennzoil-quaker State CO (dba Sopus Products Lalp) | Wilmington | CA | — | ◇ UNVERIFIED |
| PSPennzoil-quaker State (dba Sopus Products) | Newell | WV | — | ◇ UNVERIFIED |
| PPPerkins Products INC | Bedford Park | IL | — | ◇ UNVERIFIED |
| PGPerma Groove INC | Lakeville | MN | — | ◇ UNVERIFIED |
| PDPetrochoice Dynamo, LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| PSPetroclean Solutions LLC | Farmerville | LA | — | ◇ UNVERIFIED |
| PCPetrolite CORP Bakersfield Blend Plant | Bakersfield | CA | — | ◇ UNVERIFIED |
| P6Phillips 66 Company | Roxana | IL | — | ◇ UNVERIFIED |
| P6Phillips 66 Company | Hartford | IL | — | ◇ UNVERIFIED |
| P6Phillips 66 Company Wilmington Plant | Wilmington | CA | — | ◇ UNVERIFIED |
| P6Phillips 66 CO - Sweeny Refinery | Old Ocean | TX | — | ◇ UNVERIFIED |
| P6Phillips 66 - Kansas City Fairfax Terminal | Kansas City | KS | — | ◇ UNVERIFIED |
| P6Phillips 66 - Los Angeles Terminal and Lubes Plant | Los Angeles | CA | — | ◇ UNVERIFIED |
| P6Phillips 66 Pipeline Portland Terminal & Lubricants | Portland | OR | — | ◇ UNVERIFIED |
| P6Phillips 66 Savannah Lubricants Terminal | Savannah | GA | — | ◇ UNVERIFIED |
| P6Phillips 66 Spectrum CORP. Selmer Lubricants Plant | Selmer | TN | — | ◇ UNVERIFIED |
| PCPico Chemical CORP | Chicago Heights | IL | — | ◇ UNVERIFIED |
| PCPilot Chemical Company of Ohio Lockland Plant | Lockland | OH | — | ◇ UNVERIFIED |
| PMPioneer Metal Finishing | Tualatin | OR | — | ◇ UNVERIFIED |
| PIPlating International INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| PIPlaze INC | Saint Clair | MO | — | ◇ UNVERIFIED |
| PCPlz CORP | Bridgeview | IL | — | ◇ UNVERIFIED |
| PIPolychemie INC | Pearlington | MS | — | ◇ UNVERIFIED |
| PIPolychemie INC. - Wayne, Mi | Wayne | MI | — | ◇ UNVERIFIED |
| PIPolymerics INC | Kent | OH | — | ◇ UNVERIFIED |
| PCPolynt Composites USA INC | Valley Park | MO | — | ◇ UNVERIFIED |
| PDPolyventive ? Dalton South | Dalton | GA | — | ◇ UNVERIFIED |
| PLPolyventive, LLC | Calhoun | GA | — | ◇ UNVERIFIED |
| PCPonca City Refinery | Ponca City | OK | — | ◇ UNVERIFIED |
| PAPort Allen Plant | Port Allen | LA | — | ◇ UNVERIFIED |
| PAPort Allen Refinery | Port Allen | LA | — | ◇ UNVERIFIED |
| PAPort Arthur Chemicals | Port Arthur | TX | — | ◇ UNVERIFIED |
| PAPort Arthur Manufacturing Complex | Port Arthur | TX | — | ◇ UNVERIFIED |
| PAPort Arthur Tx Calcining Plant | Port Arthur | TX | — | ◇ UNVERIFIED |
| PFPort Fourchon North | Golden Meadow | LA | — | ◇ UNVERIFIED |
| PPotac | Corpus Christi | TX | — | ◇ UNVERIFIED |
| PEPpg Euclid Pretreatment & Specialty Prods | Euclid | OH | — | ◇ UNVERIFIED |
| PHPrairie Horizon Agri-energy, LLC | Phillipsburg | KS | — | ◇ UNVERIFIED |
| PAPride Aci Sanitary Maintenance & Supplies | Avon Park | FL | — | ◇ UNVERIFIED |
| PRPrinceton Refinery | Princeton | LA | — | ◇ UNVERIFIED |
| PIProchemco INC. | Lake Station | IN | — | ◇ UNVERIFIED |
| PWProchem Water LLC | Elliston | VA | — | ◇ UNVERIFIED |
| PAProcter and Gamble St. Louis | Saint Louis | MO | — | ◇ UNVERIFIED |
| PGProcter & Gamble Mfg CO (0302020260) | Lima | OH | — | ◇ UNVERIFIED |
| PAPsc Allworth - Birmingham Facility | Birmingham | AL | — | ◇ UNVERIFIED |
| PTPurcell Tire and Service Center | Anchorage | AK | — | ◇ UNVERIFIED |
| QHQuacker Houghton | Detroit | MI | — | ◇ UNVERIFIED |
| QCQuaker Chemical CORP | Middletown | OH | — | ◇ UNVERIFIED |
| QHQuaker Houghton Pa INC | Carrollton | GA | — | ◇ UNVERIFIED |
 Qualichem, INC. | Salem | VA | — | ◇ UNVERIFIED |
 Ques Industries INC | Cleveland | OH | — | ◇ UNVERIFIED |
| RCRain Cii Carbon LLC | Robinson | IL | — | ◇ UNVERIFIED |
| RCRain Cii Carbon LLC | Purvis | MS | — | ◇ UNVERIFIED |
| RCRain Cii Carbon LLC - Lake Charles Calcining Plant | Sulphur | LA | — | ◇ UNVERIFIED |
| RFRecycled Fiberized Products | New Philadelphia | OH | — | ◇ UNVERIFIED |
| RSRefinery Specialties Hempstead Facility | Hempstead | TX | — | ◇ UNVERIFIED |
| RPRemet Pic INC | Utica | NY | — | ◇ UNVERIFIED |
| RCRevlis CORP | Akron | OH | — | ◇ UNVERIFIED |
| RCRevlis Corporation | Akron | OH | — | ◇ UNVERIFIED |
| RMReynolds Metals Company LLC | Lake Charles | LA | — | ◇ UNVERIFIED |
| RHR H Crown CO INC | Johnstown | NY | — | ◇ UNVERIFIED |
| RCRhein Chemie CORP | Chardon | OH | — | ◇ UNVERIFIED |
| RARichards Apex Inc/lube Mfg Plt | Philadelphia | PA | — | ◇ UNVERIFIED |
| RRilco | Rock Island | IL | — | ◇ UNVERIFIED |
| RRRobinson Refining Logistics LLC | Robinson | IL | — | ◇ UNVERIFIED |
| RIRock Island Lubricants Company | Moline | IL | — | ◇ UNVERIFIED |
| RIRock Island Lubricants CORP INC | Rock Island | IL | — | ◇ UNVERIFIED |
| RVRock Valley Oil & Chemical CO | Rockford | IL | — | ◇ UNVERIFIED |
