| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 101 | Sunland Enterprises Corp | Norman, OK 73071 | Oil Operator | Sep 2004 |
| 102 | Sunwest Oklahoma, Inc | Dallas, TX 75231 | Oil & Gas Operator | May 2023 |
| 103 | Superior Oil & Gas LLC | Ringwood, OK 73768-9658 | Oil & Gas Operator | Dec 2025 |
| 104 | Swan Oil Company | Kellyville, OK 74039-5607 | Oil & Gas Operator | Dec 2023 |
| 105 | Swinea Well Service Inc | Drumright, OK 74030 | Oil & Gas Operator | Mar 2015 |
| 106 | Sylvan Oil Operating Company | Tulsa, OK 74103-3516 | Oil & Gas Operator | Apr 2016 |
| 107 | Synergex Inc | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2025 |