| 1701 | Hy-Tech, Inc. | Pampa, TX 79066 | Oil & Gas Operator | Feb 2017 |
| 1702 | Hyalite Energy Corporation | Pampa, TX 79066 | Oil & Gas Operator | Oct 2025 |
| 1703 | Hyatt Exploration, Inc. | | Oil Operator | Jul 1995 |
| 1704 | Hybrid Operating, Incorporated | Carlsbad, CA 92009 | Oil & Gas Operator | Feb 2026 |
| 1705 | Hyco Oil Inc | Newcastle, WY 82701 | Oil & Gas Operator | Dec 2006 |
| 1706 | Hyde-Marrs, Inc. | Wichita, KS 67202 | Oil Operator | Aug 1997 |
| 1707 | Hyder, Dean L. | Akron, NY 14001 | Gas Operator | Dec 2024 |
| 1708 | Hydroc Oil Company | Borger, TX 79007 | Oil & Gas Operator | May 2012 |
| 1709 | Hydrocarbon Exploration, Inc. | | Oil & Gas Operator | Dec 2008 |
| 1710 | Hydrocarbon Generation, Inc. | Allegany, NY 14706 | Oil & Gas Operator | Dec 2024 |
| 1711 | Hydrocarbon Horizons, Inc. | Corpus Chrsti, TX 78473 | Oil & Gas Operator | Jun 2023 |
| 1712 | Hydrocarbon Inv, Inc | | Oil Operator | Dec 2018 |
| 1713 | Hydrocarbon Lease Management LTD | Addison, TX 75001 | Oil & Gas Operator | Jul 2002 |
| 1714 | Hydrocarbon Management, Inc. | San Antonio, TX 78216 | Oil & Gas Operator | Dec 1996 |
| 1715 | Hydrocarbon MGMT., Inc. | | Oil & Gas Operator | Mar 1997 |
| 1716 | Hydrocarbon Operating, Inc. | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 1717 | Hydrocarbon Resources LTD | Medina, OH 44256 | Oil & Gas Operator | Dec 2022 |
| 1718 | Hydrocarbon Technology Services | | Oil & Gas Operator | Dec 2000 |
| 1719 | Hydrofusion Energy, LLC | Cuero, TX 77954 | Oil Operator | Feb 2026 |
| 1720 | Hydrogeo, L.L.C. | Houston, TX 77074 | Oil & Gas Operator | Feb 2026 |
| 1721 | Hyer,Na & CJ Aldenhoven Trusts | Lipan, TX 76462 | Gas Operator | Oct 2017 |
| 1722 | Hyland Oil Corporation | | Oil & Gas Operator | Apr 1990 |
| 1723 | Hyman Muslow | | Oil Operator | Jun 1995 |
| 1724 | Hyndrex Resources | | Oil & Gas Operator | Feb 2016 |
| 1725 | Hyperion Energy LP | Dallas, TX 75206 | Oil & Gas Operator | May 2014 |
| 1726 | Hyperion Oil & Gas LLC | Dallas, TX 75251 | Oil & Gas Operator | Feb 2026 |
| 1727 | Hyquest Energy, Inc. | Midland, TX 79710 | Oil & Gas Operator | Mar 2015 |