| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | Jun 2025 |
| 2 | Hartman Oil Company Inc | Wichita, KS 67206 | Oil & Gas Operator | Jun 2025 |
| 3 | Heat Waves Hot Oil Service LLC | Denver, CO 80202 | Oil Operator | Jun 2011 |
| 4 | Hembree Robert F | Oil Operator | Dec 2009 | |
| 5 | Herman L. Loeb LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Jun 2025 |
| 6 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 7 | HJ, Inc. | Garden City, KS 67846 | Oil & Gas Operator | Jun 2025 |