| Rank | County | Production Period | Oil Production |
|---|---|---|---|
| #6 | Santa Barbara County, CA | May 2024 | 196.3k BBLs |
| #7 | Orange County, CA | May 2024 | 179.3k BBLs |
| #8 | San Luis Obispo County, CA | May 2024 | 49.6k BBLs |
| #9 | Kings County, CA | May 2024 | 7.6k BBLs |
| #10 | Tulare County, CA | May 2024 | 2.8k BBLs |
| #11 | Santa Clara County, CA | May 2024 | 1.1k BBLs |
| #12 | San Benito County, CA | May 2024 | 856 BBLs |
| #13 | Contra Costa County, CA | May 2024 | 563 BBLs |
| #14 | San Bernardino County, CA | May 2024 | 368 BBLs |
| #15 | Solano County, CA | May 2024 | 37 BBLs |
| #16 | Sacramento County, CA | May 2024 | 5 BBLs |
| #17 | San Mateo County, CA | May 2024 | 3 BBLs |
| Rank | County | Production Period | Gas Production |
|---|---|---|---|
| #1 | Kern County, CA | May 2024 | 8.3M MCF |
| #2 | Los Angeles County, CA | May 2024 | 817.2k MCF |
| #3 | Contra Costa County, CA | May 2024 | 469.4k MCF |
| #4 | Ventura County, CA | May 2024 | 402k MCF |
| #5 | San Joaquin County, CA | May 2024 | 370.5k MCF |
| #6 | Colusa County, CA | May 2024 | 182.6k MCF |
| #7 | Sutter County, CA | May 2024 | 173.1k MCF |
| #8 | Solano County, CA | May 2024 | 170.2k MCF |
| #9 | Santa Barbara County, CA | May 2024 | 144.4k MCF |
| #10 | Sacramento County, CA | May 2024 | 124.5k MCF |
| #11 | Glenn County, CA | May 2024 | 124.3k MCF |
| #12 | Orange County, CA | May 2024 | 74.1k MCF |