| Rank | County | Production Period | Oil Production |
|---|---|---|---|
| #4 | Los Angeles County, CA | Nov 2019 | 961.3k BBLs |
| #5 | Monterey County, CA | Nov 2019 | 686.6k BBLs |
| #6 | Fresno County, CA | Nov 2019 | 515.7k BBLs |
| #7 | Santa Barbara County, CA | Nov 2019 | 204.3k BBLs |
| #8 | Contra Costa County, CA | Nov 2019 | 19.4k BBLs |
| #9 | San Luis Obispo County, CA | Nov 2019 | 38.8k BBLs |
| #10 | Kings County, CA | Nov 2019 | 10k BBLs |
| #11 | Santa Clara County, CA | Nov 2019 | 1.9k BBLs |
| #12 | Sacramento County, CA | Nov 2019 | 664 BBLs |
| #13 | San Benito County, CA | Nov 2019 | 854 BBLs |
| #14 | Tulare County, CA | Nov 2019 | 2.8k BBLs |
| #15 | Alameda County, CA | Nov 2019 | 719 BBLs |
| Rank | County | Production Period | Gas Production |
|---|---|---|---|
| #11 | Orange County, CA | Nov 2019 | 94.5k MCF |
| #12 | Santa Barbara County, CA | Nov 2019 | 365.7k MCF |
| #13 | Yolo County, CA | Nov 2019 | 80.5k MCF |
| #14 | Madera County, CA | Nov 2019 | 73.9k MCF |
| #15 | Monterey County, CA | Nov 2019 | 87.3k MCF |
| #16 | Contra Costa County, CA | Nov 2019 | 18.8k MCF |
| #17 | Kings County, CA | Nov 2019 | 26.9k MCF |
| #18 | Tehama County, CA | Nov 2019 | 57.4k MCF |
| #19 | Fresno County, CA | Nov 2019 | 54.2k MCF |
| #20 | San Luis Obispo County, CA | Nov 2019 | 32.7k MCF |
| #21 | Humboldt County, CA | Nov 2019 | 32.2k MCF |
| #22 | Santa Clara County, CA | Nov 2019 | 1.8k MCF |