| Company Name | Company Location | Company Type | Most Recent Production | |
|---|---|---|---|---|
| 1 | Ha Goal Inc | Indiana, PA 15701-2664 | Oil & Gas Operator | Dec 2018 |
| 2 | Hanley & Bird Inc | Tulsa, OK 74119 | Oil & Gas Operator | Dec 2011 |
| 3 | Harold R & Richard B Elkin | Punxsutawney, PA 15767-7922 | Gas Operator | Dec 2016 |
| 4 | Harold R Elkin | Punxsutawney, PA 15767-7922 | Oil & Gas Operator | Dec 2016 |
| 5 | Harus Inc | Indiana, PA 15701-9401 | Oil & Gas Operator | Dec 2025 |
| 6 | Heath 91 Cluster LP | Commodore, PA 15729-9109 | Gas Operator | Dec 2025 |
| 7 | Highpointe Oil & Gas LLC | Indiana, PA 15701-8944 | Gas Operator | Dec 2025 |
| 8 | Hoffman George A | Oil & Gas Operator | Dec 2022 | |
| 9 | Hollobaugh Paul A | Mayport, PA 16240-1710 | Gas Operator | Dec 2025 |
| 10 | Howard Drilling Inc | Mount Jewett, PA 16740-0556 | Oil & Gas Operator | Dec 2025 |