| OAOcean Air Environmental | Lakeland | FL | — | ◇ UNVERIFIED |
| OBOrigin Baltimore Recycling, LLC | Curtis Bay | MD | — | ◇ UNVERIFIED |
| PTParadis Tank Battery #3 | Paradis | LA | — | ◇ UNVERIFIED |
| PWPar West Refinery | Kapolei | HI | — | ◇ UNVERIFIED |
| PPPasadena Performance Products | Pasadena | TX | — | ◇ UNVERIFIED |
| PGPd Glycol Beaumont Plant | Beaumont | TX | — | ◇ UNVERIFIED |
| PCPenetone CORP | Tenafly | NJ | — | ◇ UNVERIFIED |
| PQPennzoil Quaker State | Rouseville | PA | — | ◇ UNVERIFIED |
| PCPetromax Carnegie Plt | Carnegie | PA | — | ◇ UNVERIFIED |
| PSPetro Star INC Valdez Refinery | Valdez | AK | — | ◇ UNVERIFIED |
| PPPolycoat Products | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| PAPolymer Additives - Cleveland Plant | Cleveland | OH | — | ◇ UNVERIFIED |
| PNPort Neches Plant | Port Neches | TX | — | ◇ UNVERIFIED |
| PIPpg Industries Cr 114 Former Pse&g Coal Gas | Jersey City | NJ | — | ◇ UNVERIFIED |
| PSPraxair Services INC. | Burlington Township | NJ | — | ◇ UNVERIFIED |
| PTPraxair Texas City Hydrogen Complex | Texas City | TX | — | ◇ UNVERIFIED |
| PSProducer S Choice Soy Ene | Moberly | MO | — | ◇ UNVERIFIED |
| RPReal Products Manufacturing LTD | Ney | OH | — | ◇ UNVERIFIED |
| RORex Oil | Denver | CO | — | ◇ UNVERIFIED |
| RORex Oil CO INC | Lyons | CO | — | ◇ UNVERIFIED |
| RERidge Energy CO INC | Clymer | PA | — | ◇ UNVERIFIED |
| RARohm and Haas Chemicals Llc, Lone Star Plant | Deer Park | TX | — | ◇ UNVERIFIED |
| SISaddlehorn Interconnect 16-16-1222-12 | Hudson | CO | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems, INC. | Ocala | FL | — | ◇ UNVERIFIED |
| SSSafety-kleen Systems INC - Kimberly Facility - Fka U S Oil | Kimberly | WI | — | ◇ UNVERIFIED |
| SOSales Oil CO | Denver | CO | — | ◇ UNVERIFIED |
| SLSan Luis Rey Wastewater Treatment Plant | Oceanside | CA | — | ◇ UNVERIFIED |
| SPSan Pablo Bay Pipeline Company LLC | Tracy | CA | — | ◇ UNVERIFIED |
| SFSanta Fe Springs Refinery | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| SCSasol Chemicals (usa) LLC | Baltimore | MD | — | ◇ UNVERIFIED |
| SISaybolt INC | Linden | NJ | — | ◇ UNVERIFIED |
| SPScott Petroleum Greenville Terminal | Greenville | MS | — | ◇ UNVERIFIED |
| SFSeaboard Foods LLC / High Plains Bioenergy Biodiesel Prod | Guymon | OK | — | ◇ UNVERIFIED |
| SOSinclair Oil Tulsa Refining Tulsa Trucking | Tulsa | OK | — | ◇ UNVERIFIED |
| SDSme Dublin | East Dublin | GA | — | ◇ UNVERIFIED |
| SSSolvay Specialty Polymers USA | Borger | TX | — | ◇ UNVERIFIED |
| SCSrw Cogeneration, L.p. | Orange | TX | — | ◇ UNVERIFIED |
| SMSt. Mary's Refinery CO. | Saint Marys | WV | — | ◇ UNVERIFIED |
| SPSumika Polymer Compounds America INC. | Griffin | GA | — | ◇ UNVERIFIED |
| SSSummit Supply | Seattle | WA | — | ◇ UNVERIFIED |
 Sun Chemical CORP | Wurtland | KY | — | ◇ UNVERIFIED |
| SRSunland Refining | Bakersfield | CA | — | ◇ UNVERIFIED |
| SPSunoco Partners Mkt & Term LP Darby Creek Tank Farm | Darby | PA | — | ◇ UNVERIFIED |
| SISuperior Industries International | Pittsburg | KS | — | ◇ UNVERIFIED |
| SBSynergy Biofuels LLC -2 | Pennington Gap | VA | — | ◇ UNVERIFIED |
| THTaminco Higher Amines INC | Riverview | MI | — | ◇ UNVERIFIED |
| TITexas International Refining | Galveston | TX | — | ◇ UNVERIFIED |
| TIThe International Group INC | Richmond | CA | — | ◇ UNVERIFIED |
| TFThermo Fluids INC. White City | White City | OR | — | ◇ UNVERIFIED |
| TOTidelands Oil Production Company Etal | Long Beach | CA | — | ◇ UNVERIFIED |
