Oil & Gas Companies in San Luis Obispo County, CA
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
| 2 | Calresources LLC | | Oil & Gas Operator | Dec 1996 |
| 3 | Chevron USA Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2025 |
| 4 | Deuel Petroleum Company Inc. | | Oil & Gas Operator | Dec 1999 |
| 5 | E & B Natural Resources Management Corporation | Hays, KS 67601 | Oil & Gas Operator | Oct 2025 |
| 6 | Freeport-McMoran Oil & Gas LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 7 | G. L. Stafford Jr. | | Oil Operator | Dec 1996 |
| 8 | Grace Petroleum Corp. | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1997 |
| 9 | Magness Petroleum Company | | Oil & Gas Operator | Dec 1994 |
| 10 | Marathon Oil Company | Houston, TX 77252 | Oil & Gas Operator | Oct 2025 |
| 11 | McFarland Energy, Inc. | New Orleans, LA 70160 | Oil & Gas Operator | Dec 2009 |
| 12 | Mobil Oil Corporation | Houston, TX 77210 | Oil & Gas Operator | Dec 2007 |
| 13 | Monterey Resources Inc. | | Oil & Gas Operator | Dec 1997 |
| 14 | Phillips Petroleum Company | Houston, TX 77251 | Oil & Gas Operator | Mar 2013 |
| 15 | Sentinel Peak Resources California LLC | | Oil & Gas Operator | Oct 2025 |
| 16 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 17 | Tenneco Oil Company | Oklahoma City, OK 73125 | Oil & Gas Operator | Sep 2025 |
| 18 | Trio Petroleum LLC | | Oil & Gas Operator | Sep 2025 |
| 19 | Two Bay Petroleum | | Oil & Gas Operator | Dec 2010 |
| 20 | Union Oil Co Of California | Midland, TX 79706 | Oil & Gas Operator | Jan 2022 |
| 21 | Venoco LLC | | Oil & Gas Operator | Sep 2025 |
Production numbers shown above are only for San Luis Obispo County, CA and for the production period listed.