| Rank | County | Production Period | Oil Production |
|---|---|---|---|
| #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 |
| #18 | Solano County, CA | Nov 2019 | 132 BBLs |
| #26 | San Bernardino County, CA | Nov 2019 | 654 BBLs |
| Rank | County | Production Period | Gas Production |
|---|---|---|---|
| #2 | San Joaquin County, CA | Nov 2019 | 5.2M MCF |
| #3 | Solano County, CA | Nov 2019 | 2.8M MCF |
| #4 | Kern County, CA | Nov 2019 | 10.7M MCF |
| #5 | Los Angeles County, CA | Nov 2019 | 3.7M MCF |
| #6 | Colusa County, CA | Nov 2019 | 869.2k MCF |
| #7 | Sutter County, CA | Nov 2019 | 328.4k MCF |
| #8 | Sacramento County, CA | Nov 2019 | 277.8k MCF |
| #9 | Ventura County, CA | Nov 2019 | 478.5k MCF |
| #10 | Glenn County, CA | Nov 2019 | 233.6k MCF |
| #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 |