| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Sand Bar Oil Com | Oil Operator | Jun 1986 | |
| 2 | See Oil | Oil Operator | Jun 2025 | |
| 3 | Sek Energy, LLC | Benedict, KS 66714 | Oil & Gas Operator | Jun 2025 |
| 4 | Sirius Energy Corp. | Abilene, TX 79606 | Oil Operator | Dec 2009 |
| 5 | Smith, David | Wichita Falls, TX 76310 | Oil Operator | Oct 2025 |
| 6 | Smith, Loren L. | Oswego, KS 67356 | Oil & Gas Operator | Sep 2009 |
| 7 | Sotta, Donald E. | McCune, KS 66753 | Oil Operator | Dec 2024 |
| 8 | Stephens Oil Co. | Oil Operator | Dec 2017 |