Oil & Gas Companies in Barber County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | H-30 Incorporate | | Oil & Gas Operator | Nov 1990 |
| 2 | H3 Oil & Gas | | Oil & Gas Operator | Jun 2025 |
| 3 | Halliburton Oil | | Oil & Gas Operator | Sep 2008 |
| 4 | Hart Energies, LLC | Tulsa, OK 74133 | Oil & Gas Operator | Dec 2016 |
| 5 | Hawkins Oil & Ga | | Oil & Gas Operator | Jun 1995 |
| 6 | Hawkins Oil & Gas Company | Richardson, TX 75080 | Oil & Gas Operator | Oct 2025 |
| 7 | Hayes Oil & Gas LLC | Attica, KS 67009 | Oil & Gas Operator | Jun 2025 |
| 8 | Herman L. Loeb, LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Jun 2025 |
| 9 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 10 | Hinkle Oil Compa | | Oil & Gas Operator | Nov 1994 |
| 11 | Hoffman Resources LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 12 | Horizon Oil & Ga | | Oil & Gas Operator | Jan 1992 |
| 13 | HRM Resources II, LLC | Denver, CO 80202 | Oil & Gas Operator | Jan 2022 |
| 14 | Hugoton Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Dec 2019 |
| 15 | Hummon Corp. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2023 |
Production numbers shown above are only for Barber County, KS and for the production period listed.