| Rank | County | Production Period | Oil Production |
|---|---|---|---|
| #2 | Los Angeles County, CA | Sep 2024 | 539k BBLs |
| #3 | Ventura County, CA | Sep 2024 | 335.1k BBLs |
| #4 | Fresno County, CA | Sep 2024 | 319.3k BBLs |
| #5 | Monterey County, CA | Sep 2024 | 222.6k BBLs |
| #6 | Orange County, CA | Sep 2024 | 151.8k BBLs |
| #7 | Santa Barbara County, CA | Sep 2024 | 126.2k BBLs |
| #8 | San Luis Obispo County, CA | Sep 2024 | 47.4k BBLs |
| #9 | Kings County, CA | Sep 2024 | 7.1k BBLs |
| #10 | Tulare County, CA | Sep 2024 | 2.1k BBLs |
| #11 | Santa Clara County, CA | Sep 2024 | 1.5k BBLs |
| #12 | San Benito County, CA | Sep 2024 | 1.1k BBLs |
| #13 | San Bernardino County, CA | Sep 2024 | 258 BBLs |
| Rank | County | Production Period | Gas Production |
|---|---|---|---|
| #10 | Sacramento County, CA | Sep 2024 | 105.5k MCF |
| #11 | Santa Barbara County, CA | Sep 2024 | 96.4k MCF |
| #12 | Orange County, CA | Sep 2024 | 67.9k MCF |
| #13 | Solano County, CA | Sep 2024 | 60.3k MCF |
| #14 | Fresno County, CA | Sep 2024 | 51.3k MCF |
| #15 | Monterey County, CA | Sep 2024 | 44.5k MCF |
| #16 | San Luis Obispo County, CA | Sep 2024 | 28.1k MCF |
| #17 | Tehama County, CA | Sep 2024 | 27.6k MCF |
| #18 | Humboldt County, CA | Sep 2024 | 24k MCF |
| #19 | Kings County, CA | Sep 2024 | 15.7k MCF |
| #20 | Yolo County, CA | Sep 2024 | 4.2k MCF |
| #21 | San Bernardino County, CA | Sep 2024 | 3.0k MCF |