| 1 | A & L Energy Operations LLC | New York, NY 10022 | Oil Operator | Sep 2013 |
| 2 | Altavista Energy, Inc. | Wellsville, KS 66092 | Oil Operator | Sep 2025 |
| 3 | Alternative Ener | | Oil Operator | Jan 1995 |
| 4 | Bankoff Oil Comp | | Oil Operator | Jun 1995 |
| 5 | Bauer Oil Investment LLC | Cleveland, MO 64734 | Oil Operator | Sep 2025 |
| 6 | BG-5, Inc. | Rantoul, KS 66079 | Oil Operator | Sep 2025 |
| 7 | Butler Petroleum LLC | Van Alstyne, TX 75495 | Oil Operator | May 2020 |
| 8 | Cash Flow Oil | | Oil Operator | Jul 2003 |
| 9 | Coal Creek Energy, LLC | Overland Park, KS 66221 | Oil Operator | Dec 2019 |
| 10 | Colt Energy Inc | Iola, KS 66749 | Oil & Gas Operator | Sep 2025 |
| 11 | Colt Energy Inco | | Oil & Gas Operator | Dec 1996 |
| 12 | D & D Energy | | Oil Operator | Jul 2023 |
| 13 | E2 Operating LLC | Tulsa, OK 74135 | Oil & Gas Operator | Feb 2026 |
| 14 | Enerjex Kansas, Inc. | Leawood, KS 66211 | Oil & Gas Operator | Apr 2010 |
| 15 | Flatland Energy, LLC | Gardner, KS 66030 | Oil Operator | Sep 2025 |
| 16 | Gault Energy Cor | | Oil & Gas Operator | Jan 1988 |
| 17 | Grand Mesa Operating Company | Wichita, KS 67206 | Oil & Gas Operator | Dec 2025 |
| 18 | HB Energy LLC | Wellsville, KS 66092 | Oil Operator | Sep 2025 |
| 19 | Honey Well, LLC | Lenexa, KS 66219 | Oil Operator | Sep 2025 |
| 20 | J-Mar Incorporat | | Oil & Gas Operator | Jun 1993 |
| 21 | Justin Energy Corporation | Wellsville, KS 66092 | Oil Operator | Sep 2025 |
| 22 | Kansas Oil Prope | | Oil & Gas Operator | Sep 1991 |
| 23 | Kansas Resource Exploration & Development, LLC | Overland Park, KS 66202 | Oil Operator | Sep 2025 |
| 24 | Kinderhook Oil & | | Oil Operator | Dec 1993 |
| 25 | Kottwitz Oil Co., A General Partnership | | Oil Operator | Jul 2019 |
| 26 | Magnum Exploration Kansas, LLC | Lipan, TX 76462 | Oil Operator | Oct 2016 |
| 27 | Midstates Energy Operating, LLC | FT Myers, FL 33912 | Oil Operator | Sep 2025 |
| 28 | Midwest Oil, LLC | Destin, FL 32541 | Oil Operator | Sep 2025 |
| 29 | Mustang Drilling | | Oil & Gas Operator | Nov 1996 |
| 30 | Noxxe | Ottawa, KS 66067 | Oil & Gas Operator | Dec 2023 |
| 31 | Oil And Gas Management, Inc. | Kansas City, MO 64106 | Oil Operator | Apr 2011 |
| 32 | Paradigm Energy LLC | Lenexa, KS 66227 | Oil & Gas Operator | Dec 2024 |
| 33 | Petrodome Operating, LLC | Houston, TX 77265 | Oil & Gas Operator | May 2025 |
| 34 | R.T. Enterprises Of Kansas, Inc. | Louisburg, KS 66053 | Oil Operator | Sep 2025 |
| 35 | Reese Exploratio | | Oil & Gas Operator | Mar 1995 |
| 36 | RH Capital-Beets, LLC | Jefferson City, MO 65101 | Oil Operator | Sep 2025 |
| 37 | Robert S. Harwell, Inc. | Edmond, OK 73034 | Oil Operator | Nov 2019 |
| 38 | Russell James E | | Oil Operator | Apr 1994 |
| 39 | Sag Oil Company LLC | Wellsville, KS 66092 | Oil Operator | Sep 2025 |
| 40 | Tauy Oil, Inc | Baldwin City, KS 66006 | Oil Operator | Aug 2025 |
| 41 | TDR Construction, Inc. | Wellsville, KS 66092 | Oil Operator | Sep 2025 |
| 42 | Texokan Resources, Inc. | Dallas, TX 75206 | Oil Operator | Apr 2012 |
| 43 | Town Oil Co. | Paola, KS 66071 | Oil & Gas Operator | Aug 2025 |
| 44 | Wellsville Oil C | | Oil Operator | Dec 1996 |
| 45 | Wellsville Oil Co | Wellsville, KS 66092 | Oil Operator | Sep 2000 |
| 46 | Whitlow Energy, Inc. | Spring Hill, KS 66083 | Oil & Gas Operator | Sep 2025 |
| 47 | Wise, Rodney J. | Anna, OH 45302 | Oil Operator | Jul 2011 |