| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | E & E Production Company, Inc. | Oil & Gas Operator | Dec 2004 | |
| 2 | Edward Oil Company | Youngsville, PA 16371 | Oil & Gas Operator | May 2024 |
| 3 | Edwin L. Cox | Oil & Gas Operator | May 1986 | |
| 4 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Sep 2024 |
| 5 | Energy Self-Service Oils, Inc. | Oil & Gas Operator | Apr 2009 | |
| 6 | EOG Resources Inc | Midland, TX 79702 | Oil & Gas Operator | Nov 2024 |
| 7 | Equitable Petroleum Corp. | Oil & Gas Operator | Jan 1999 | |
| 8 | Evangeline Natural Resources, LLC | Oil & Gas Operator | Jun 2024 | |
| 9 | Exchange Oil & Gas Corporation | Tulsa, OK 74103 | Oil & Gas Operator | Oct 1987 |
| 10 | Extex Operating Company | Houston, TX 77057 | Oil & Gas Operator | Nov 2024 |
| 11 | Exxon Corporation | Houston, TX 77210 | Oil & Gas Operator | Jun 2024 |