| 1 | H & S Drilling Co Inc | Frazeysburg, OH 43822-0040-0040 | Oil & Gas Operator | Dec 2016 |
| 2 | Hadaway Consult And Engineer,LLC | Canadian, TX 79014 | Oil & Gas Operator | Dec 2024 |
| 3 | Hall Energy Company LLC | Oklahoma City, OK 73120-5020 | Oil & Gas Operator | Jul 2022 |
| 4 | Halvey Energy Co. | Midland, TX 79702 | Oil & Gas Operator | Oct 2004 |
| 5 | Hamman Oil & Refining Company | Houston, TX 77098 | Oil & Gas Operator | Dec 2024 |
| 6 | Hampton Resources Corporation | Houston, TX 77010 | Oil & Gas Operator | Mar 1996 |
| 7 | Hendrix, John H. Corporation | Midland, TX 79705 | Oil & Gas Operator | Sep 2018 |
| 8 | Henry Petroleum Corp. | Midland, TX 79703 | Oil & Gas Operator | Mar 2001 |
| 9 | Henry Resources LLC | Midland, TX 79703 | Oil & Gas Operator | Dec 2024 |
| 10 | Hexp Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2024 |
| 11 | Hodgden, Jack D. | Enid, OK 73702 | Oil & Gas Operator | Apr 2000 |
| 12 | Hughes Oil Company Inc | Odessa, TX 79765 | Oil & Gas Operator | Feb 2004 |
| 13 | Hunt Cimarron LTD. Partnership | Roswell, NM 88202 | Oil & Gas Operator | Dec 2024 |
| 14 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Dec 2024 |