| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Hat Production LLC | Mound City, KS 66056 | Oil Operator | Apr 2026 |
| 2 | Hillenburg Oil C | Oil Operator | Apr 1994 | |
| 3 | Hodges Oil | Oil Operator | Mar 2026 | |
| 4 | Hughes Drilling Co, A General Partnership | Wellsville, KS 66092 | Oil Operator | Apr 2026 |