Oil & Gas Companies in Montgomery County, KS
| Company Name | Company Location | Company Type | Most Recent Production |
| 1 | H & H Oil Co. | | Oil & Gas Operator | Jun 2025 |
| 2 | H & H Oil Compan | | Oil & Gas Operator | Aug 1995 |
| 3 | H & H Production | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2015 |
| 4 | H & M Productions L.L.C. | Overland Park, KS 66210 | Oil Operator | May 1998 |
| 5 | H & W Oil Corpor | | Oil Operator | Dec 1996 |
| 6 | Hackley Okla Inc | | Oil & Gas Operator | Aug 1992 |
| 7 | Hafer Run Enterprise | Independence, KS 67301 | Oil Operator | Oct 1997 |
| 8 | Hardin Oil Co. | | Oil Operator | Dec 2019 |
| 9 | Harper Oil Co. | Denver, CO 80217 | Oil & Gas Operator | Jun 2025 |
| 10 | Hawkins Oil & Ga | | Oil & Gas Operator | Jun 1995 |
| 11 | Heller, Phillip & Charlene | Columbia, MO 65201 | Oil & Gas Operator | May 2025 |
| 12 | Hiebert & Wedel | | Oil & Gas Operator | May 1995 |
| 13 | Higgins Oil & Ga | | Oil Operator | Apr 1992 |
| 14 | Holt, Carol | Independence, KS 67301 | Oil Operator | Feb 2025 |
| 15 | Hon R J Oil & Ga | | Oil Operator | Nov 1990 |
| 16 | Horton Oil Company, Inc. | Independence, KS 67301 | Oil & Gas Operator | Jul 2000 |
| 17 | Horton, Jack | Independence, KS 67301 | Oil & Gas Operator | Aug 2015 |
| 18 | Horton, John | Sedan, KS 67361 | Oil & Gas Operator | Jun 2025 |
| 19 | Housel John R Jr | | Oil Operator | Oct 1994 |
| 20 | Housel, Robert E. | Cherryvale, KS 67335 | Oil & Gas Operator | Dec 2003 |
Production numbers shown above are only for Montgomery County, KS and for the production period listed.