Oil & Gas Companies in Graham County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
|---|
| 1 | H & B Petroleum Corp. | Hutchinson, KS 67504 | Oil & Gas Operator | Jun 2025 |
| 2 | H & C Oil Operat | | Oil & Gas Operator | Dec 1996 |
| 3 | H & C Oil Operating Inc. | Plainville, KS 67663 | Oil & Gas Operator | Jun 2025 |
| 4 | H & H Oil Co. | | Oil & Gas Operator | Jun 2025 |
| 5 | H & M Petroleum Corporation | Lincoln, NE 68516 | Oil & Gas Operator | Jun 2025 |
| 6 | Habit Petroleum, LLC | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 7 | Haffner Dan | Hoxie, KS 67740 | Oil Operator | Jun 2025 |
| 8 | Haffner Poor Farms, LLC | Hoxie, KS 67740 | Oil Operator | May 2025 |
| 9 | Hale, L.D. | Wichita, KS 67230 | Oil Operator | Oct 2019 |
| 10 | Hallwood Petrole | | Oil & Gas Operator | Apr 1999 |
| 11 | Hallwood Petroleum | Denver, CO 80237 | Oil & Gas Operator | Dec 1997 |
| 12 | Hamlin Oil Opera | | Oil Operator | May 1988 |
| 13 | Hansen Dane G TR | | Oil Operator | Feb 1995 |
| 14 | Helberg Oil Comp | | Oil Operator | Mar 1995 |
| 15 | Hellar Drilling | | Oil & Gas Operator | Jan 1994 |
| 16 | Helmerich & Payn | | Oil & Gas Operator | Aug 1995 |
| 17 | Herman L. Loeb, LLC | Lawrenceville, IL 62439 | Oil & Gas Operator | Jun 2025 |
| 18 | Hertel Oil Company | | Oil Operator | Nov 2018 |
| 19 | Hertel Oil Company LLC | Hays, KS 67601 | Oil Operator | Jun 2025 |
| 20 | Hess Oil Company | McPherson, KS 67460 | Oil & Gas Operator | Jun 2025 |
| 21 | Hesse Petroleum Co.,L.L.C. | Wichita, KS 67208 | Oil & Gas Operator | Jun 2025 |
| 22 | HG Oil Holdings, LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 23 | High Plains Oil | | Oil Operator | Jun 1989 |
| 24 | Hoffman Resources LLC | Hoisington, KS 67544 | Oil & Gas Operator | Jun 2025 |
| 25 | Holt IVan | | Oil Operator | Mar 1989 |
| 26 | Hoover Noble C | | Oil Operator | Nov 1992 |
| 27 | Hrbek, R.L. | Merino, CO 80741 | Oil & Gas Operator | Jan 2024 |
| 28 | Hub Oil Company | | Oil Operator | Jan 1990 |
| 29 | Hupfer Oil & Gas | Hays, KS 67601 | Oil & Gas Operator | Dec 1993 |
| 30 | Hutchison Jay Oi | | Oil Operator | Sep 1991 |
Production numbers shown above are only for Graham County, KS and for the production period listed.