| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Aera Energy LLC | Oil & Gas Operator | Dec 2023 | |
| 2 | California Oil Independents | Oil & Gas Operator | Nov 2023 | |
| 3 | California Resources Production Corporation | Oil & Gas Operator | Dec 2023 | |
| 4 | Calnrg Operating LLC | Oil & Gas Operator | Dec 2023 | |
| 5 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 6 | El Dorado Exploration Co. | Oil Operator | Dec 1999 | |
| 7 | Fred Cagle | Oil Operator | Nov 2023 | |
| 8 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 9 | J. M. Van Horn Operator | Oil Operator | Dec 1989 | |
| 10 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2016 |
| 11 | Neon Energy Corporation | Oil Operator | Apr 2014 | |
| 12 | Newbridge Resources, LLC | Houston, TX 77056 | Oil & Gas Operator | Dec 2023 |
| 13 | Ny Oil Inc. | Oil Operator | Dec 2023 | |
| 14 | Ogle Petroleum Inc. | Oil & Gas Operator | Dec 1989 | |
| 15 | Pacific Coast Energy Company LP | Oil & Gas Operator | Dec 2023 | |
| 16 | Paris Valley Petroleum | Oil Operator | Dec 2004 | |
| 17 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 18 | Reabold California LLC | Oil & Gas Operator | Dec 2023 | |
| 19 | Sunset Exploration Inc. | Oil & Gas Operator | Nov 2023 | |
| 20 | Trio Petroleum LLC | Oil & Gas Operator | Nov 2023 | |
| 21 | Venoco LLC | Oil & Gas Operator | Nov 2023 | |
| 22 | Vintage Production California LLC | Oil & Gas Operator | Jun 2016 | |
| 23 | Western Oil Independent LLC | Oil & Gas Operator | Dec 2016 |