| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Salt Plain Pipeline Corp | Edmond, OK 73013 | Oil & Gas Operator | Jun 2010 |
| 2 | Salty Dog Disposal LLC | Oil Operator | Feb 2024 | |
| 3 | Sellmeyer Frank | San Rafael, CA 94901-1339 | Oil Operator | Dec 2014 |
| 4 | Seminole Oil Productions LLC | Surprise, AZ 85387-2015 | Oil Operator | Apr 2020 |
| 5 | Shideler Enterprises Inc | Drumright, OK 74030-1233 | Oil & Gas Operator | Feb 2019 |
| 6 | Shidler Well Service | Vinita, OK 74301-5468 | Oil Operator | Dec 2000 |
| 7 | Smith Shirley C | Claremore, OK 74017-0060 | Oil & Gas Operator | Mar 2015 |
| 8 | Spring Operating Company | Edmond, OK 73083-2048 | Oil & Gas Operator | Jan 2024 |
| 9 | STP Cherokee, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2014 |
| 10 | Superior Saltwater Disposal LLC | Oil & Gas Operator | Dec 2016 |