| Rank | County | Production Period | Oil Production |
|---|---|---|---|
| #1 | Jackson County, MI | Apr 2021 | 43.5k BBLs |
| #2 | Otsego County, MI | Apr 2021 | 36.2k BBLs |
| #3 | Calhoun County, MI | Apr 2021 | 21.6k BBLs |
| #4 | Isabella County, MI | Apr 2021 | 18.6k BBLs |
| #5 | Bay County, MI | Apr 2021 | 17.6k BBLs |
| #6 | Gladwin County, MI | Apr 2021 | 17k BBLs |
| #7 | Clare County, MI | Apr 2021 | 16.8k BBLs |
| #8 | Washtenaw County, MI | Apr 2021 | 12.9k BBLs |
| #9 | Kalamazoo County, MI | Apr 2021 | 11.1k BBLs |
| #10 | Ogemaw County, MI | Apr 2021 | 8.0k BBLs |
| #11 | Mecosta County, MI | Apr 2021 | 5.5k BBLs |
| #12 | Manistee County, MI | Apr 2021 | 5.0k BBLs |
| Rank | County | Production Period | Gas Production |
|---|---|---|---|
| #14 | Arenac County, MI | Apr 2021 | 13.4k MCF |
| #15 | Osceola County, MI | Apr 2021 | 12.9k MCF |
| #16 | Crawford County, MI | Apr 2021 | 12.2k MCF |
| #17 | Benzie County, MI | Apr 2021 | 7.7k MCF |
| #18 | Calhoun County, MI | Apr 2021 | 6.4k MCF |
| #19 | Roscommon County, MI | Apr 2021 | 4.4k MCF |
| #20 | Grand Traverse County, MI | Apr 2021 | 4.4k MCF |
| #21 | St. Clair County, MI | Apr 2021 | 3.6k MCF |
| #22 | Wayne County, MI | Apr 2021 | 3.3k MCF |
| #23 | Oakland County, MI | Apr 2021 | 3.1k MCF |
| #24 | Presque Isle County, MI | Apr 2021 | 1.8k MCF |
| #25 | Hillsdale County, MI | Apr 2021 | 680 MCF |