| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Sandridge Exploration And Production LLC | Oklahoma City, OK 73104 | Oil & Gas Operator | Oct 2025 |
| 2 | Schulein Company LLC | Denver, CO 80246 | Oil & Gas Operator | Jun 2025 |
| 3 | Schwien Tank & Lease Service Inc | Bazine, KS 67516 | Oil Operator | May 2000 |
| 4 | Shakespeare Oil Co Inc | Salem, IL 62881 | Oil & Gas Operator | Jul 2025 |
| 5 | Sharon Resources, Inc. | Houston, TX 77056 | Oil & Gas Operator | Aug 2010 |
| 6 | Slawson, Donald C. | Wichita, KS 67202 | Oil & Gas Operator | Apr 2025 |
| 7 | Stanlee Oil LLC | Oil Operator | Jun 2025 | |
| 8 | Sun Oil Company | Dallas, TX 75373 | Oil & Gas Operator | Dec 2021 |