| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Sag Oil Company LLC | Wellsville, KS 66092 | Oil Operator | Jun 2025 |
| 2 | Scheuneman, Lester | Ridgeway, MO 64481 | Oil Operator | May 2019 |
| 3 | Schulte Oil - C | Oil Operator | Dec 1989 | |
| 4 | Sirius Energy Corp. | Abilene, TX 79606 | Oil Operator | Dec 2009 |
| 5 | Sommer Oil LLC | Richmond, KS 66080 | Oil Operator | Jun 2025 |
| 6 | Southern Star Central Gas Pipeline, Inc. | Owensboro, KY 42301 | Oil & Gas Operator | May 2025 |
| 7 | Specht Oil | Iola, KS 66749 | Oil Operator | Mar 1998 |