| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | S. M. Reynolds Opr. | Gas Operator | Dec 1990 | |
| 2 | Samson Resources Company | Tulsa, OK 74103 | Oil & Gas Operator | Jul 2025 |
| 3 | Seaward Resources Inc. | Gas Operator | Dec 1984 | |
| 4 | Shell Western E&P Inc. | Houston, TX 77001 | Oil & Gas Operator | May 2011 |
| 5 | Shoshone Oil Corp. | Oil & Gas Operator | Dec 2005 | |
| 6 | Stockdale Energy Co. | Gas Operator | Dec 1992 | |
| 7 | Stream Energy, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2025 |