| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Sauder Earl W | Oil & Gas Operator | Jan 1992 | |
| 2 | Sauder, Earl W. (Deceased) | Emporia, KS 66801 | Oil & Gas Operator | Nov 1997 |
| 3 | Schindler Oil | Oil Operator | Dec 2009 | |
| 4 | Schindler Oil, LLC | Madison, KS 66860 | Oil Operator | Jun 2025 |
| 5 | SH Oil Operations LLC | Wichita, KS 67277 | Oil & Gas Operator | Jun 2025 |
| 6 | Shawmar Oil & Gas Co., Inc. | Sunnyvale, TX 75182 | Oil & Gas Operator | Dec 2023 |
| 7 | Shawmar Oil Comp | Oil & Gas Operator | Feb 1995 |