| DDDemenno-kerdoon Dba World Oil Recycling | Compton | 100–499 | ● ACTIVE |
Freeberg Industrial Fabrication LLC | Escondido | 100–499 | ● ACTIVE |
| MRMartinez Refining | Martinez | 500+ | ● ACTIVE |
| VRValero Refining Company - Ca | Benicia | 100–499 | ● ACTIVE |
| VWValero Wilmington Refinery | Wilmington | 100–499 | ● ACTIVE |
Advanced Mounting & Design INC | Corona | — | ● ACTIVE |
Aoclsc, INC. | Vernon | — | ● ACTIVE |
Binder Usa, LP | Camarillo | — | ● ACTIVE |
Caig Laboratories, INC. | Poway | — | ● ACTIVE |
| CPChevron Products CO. | El Segundo | 500+ | ● ACTIVE |
Davlin Coatings LLC | Berkeley | — | ● ACTIVE |
Halfab, INC | Livermore | — | ● ACTIVE |
Tomlin Scientific, INC. | Buena Park | — | ● ACTIVE |
Trabuco Precision LLC | Yorba Linda | — | ● ACTIVE |
Amfuels Intl, INC. | Los Angeles | — | ● ACTIVE |
Aoclsc INC | Pico Rivera | — | ● ACTIVE |
Clipper Oil, INC. | San Diego | — | ● ACTIVE |
Falcon Fuels, INC. | Paramount | — | ● ACTIVE |
Flywheel Distribution, LLC | Santa Ana | — | ● ACTIVE |
Hobbsolutions LLC | Huntington Beach | — | ● ACTIVE |
Matich Corporation | San Bernardino | — | ● ACTIVE |
Medina-zendejas Communications INC | Fullerton | — | ● ACTIVE |
Southern Counties Oil Co., a California Limited Partnership | Orange | — | ● ACTIVE |
Talley Oil INC | Madera | — | ● ACTIVE |
Volunteer Lubricants & Fuel LLC | Newbury Park | — | ● ACTIVE |
| WPWestgate Petroleum Company, INC. | Lakeport | — | ● ACTIVE |
| WIWitbro, INC. | Fresno | 20–99 | ● ACTIVE |
| IBIrvine Batch Plant | Irvine | 1–19 | ◐ LIKELY ACTIVE |
| OCOwens Corning Roofing & Asphalt LLC | Compton | 100–499 | ◐ LIKELY ACTIVE |
| SSSafety-kleen Systems, INC. | Richmond | 20–99 | ◐ LIKELY ACTIVE |
| 3C3m Company | Corona | — | ◐ LIKELY ACTIVE |
| APAir Products and Chemicals, INC. | Wilmington | — | ◐ LIKELY ACTIVE |
| AAAll American Asphalt | Corona | 500+ | ◐ LIKELY ACTIVE |
| ABAlon Bakersfield Refinery | Bakersfield | — | ◐ LIKELY ACTIVE |
| ABAntioch Building Materials Company | Pittsburg | 20–99 | ◐ LIKELY ACTIVE |
| BCBasalite Concrete Products - Selma | Selma | 20–99 | ◐ LIKELY ACTIVE |
| CEChevron El Segundo Refinery | El Segundo | — | ◐ LIKELY ACTIVE |
| CPChevron Products Company | Richmond | — | ◐ LIKELY ACTIVE |
| CCConocophillips Carbon Plant | Rodeo | — | ◐ LIKELY ACTIVE |
| EOEvergreen Oil INC | Newark | — | ◐ LIKELY ACTIVE |
| KEKern Energy | Bakersfield | — | ◐ LIKELY ACTIVE |
| LILubeco INC | Long Beach | 20–99 | ◐ LIKELY ACTIVE |
| LCLunday-thagard Company | South Gate | — | ◐ LIKELY ACTIVE |
| PPParamount Petroleum Corporation Refinery | Paramount | — | ◐ LIKELY ACTIVE |
| PMPetrochem Materials Innovation LLC | South Gate | 20–99 | ◐ LIKELY ACTIVE |
| P6Phillips 66 - Los Angeles Terminal and Lubes Plant | Los Angeles | — | ◐ LIKELY ACTIVE |
| SFSan Francisco Refinery at Rodeo, California | Rodeo | — | ◐ LIKELY ACTIVE |
| SJSan Joaquin Refining CO INC | Bakersfield | — | ◐ LIKELY ACTIVE |
| SCShell Chemical LP - Martinez Catayst Plant | Martinez | — | ◐ LIKELY ACTIVE |
| TGTesoro Golden Eagle Refinery | Martinez | — | ◐ LIKELY ACTIVE |