Oil & Gas Companies in Grant County, OK
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | Halcon Holdings Inc | Ada, OK 74820 | Oil & Gas Operator | Sep 2025 |
| 2 | Halliburton Oil Producing Co. | Duncan, OK 73534 | Oil & Gas Operator | Apr 2016 |
| 3 | Harbor Resources LLC | Oklahoma City, OK 73120 | Oil & Gas Operator | Dec 2025 |
| 4 | Hazlewood Oil & Gas Co Inc | Oklahoma City, OK 73139-9353 | Oil & Gas Operator | Apr 2022 |
| 5 | Headington Oil Company | Dallas, TX 75231 | Oil & Gas Operator | Dec 2016 |
| 6 | Headington Oil Company LLC | Dallas, TX 75204 | Oil & Gas Operator | Apr 2016 |
| 7 | Highland Minerals Inc | Tulsa, OK 74145-7627 | Oil & Gas Operator | Apr 2015 |
| 8 | Himco Oil & Gas Inc | Enid, OK 73702 | Oil & Gas Operator | Oct 2025 |
| 9 | Hinkle Oil And Gas Inc | Oklahoma City, OK 73112-4275 | Oil & Gas Operator | Oct 2025 |
| 10 | Holden Energy Corporation | Ardmore, OK 73401 | Oil & Gas Operator | Mar 2015 |
| 11 | Hondo Oil & Gas Company | Roswell, NM 88202 | Oil & Gas Operator | Aug 2006 |
| 12 | Horizon Natural Gas Company | Tulsa, OK 74170 | Oil & Gas Operator | Oct 2024 |
| 13 | Hovas Enterprises | Perkins, OK 74059 | Oil & Gas Operator | Mar 2014 |
| 14 | Huck Farms LLC | Stratford, OK 74872 | Oil & Gas Operator | Aug 2025 |
| 15 | Huitt Joe A | Tulsa, OK 74103 | Oil & Gas Operator | May 2001 |
| 16 | Hulen Operating Company | Nichols Hill, OK 73116 | Oil & Gas Operator | Dec 2025 |
Production numbers shown above are only for Grant County, OK and for the production period listed.