| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | H L Brown Jr | Midland, TX 79702 | Oil & Gas Operator | May 2001 |
| 2 | H L Brown Operating LLC | Midland, TX 79702 | Oil & Gas Operator | Sep 2025 |
| 3 | Halcon Holdings Inc | Ada, OK 74820 | Oil & Gas Operator | Jul 2025 |
| 4 | Hanson Operating Company Inc | Roswell, NM 88202 | Oil & Gas Operator | Jul 2025 |
| 5 | Harvard Petroleum Company, LLC | Roswell, NM 88202 | Oil & Gas Operator | Dec 2025 |
| 6 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 7 | Huntington Energy LLC | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2025 |