| 1 | Advantage Resources Inc | Broomfield, CO 80020 | Oil & Gas Operator | Dec 2023 |
| 2 | Bach Oil Production | | Oil Operator | Dec 2023 |
| 3 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 4 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Apr 2024 |
| 5 | Central Operating Inc | Denver, CO 80202 | Oil & Gas Operator | Feb 2024 |
| 6 | Cholla Production LLC | Littleton, CO 80127 | Oil & Gas Operator | Dec 2023 |
| 7 | Coachman Energy Operating Company LLC | Englewood, CO 80111 | Oil & Gas Operator | Aug 2018 |
| 8 | Earth Sound, Inc | | Oil Operator | Dec 2017 |
| 9 | Eland Energy Inc | Dallas, TX 75248 | Oil & Gas Operator | Jan 2024 |
| 10 | Forestar Petroleum Corporation | Denver, CO 80202 | Oil & Gas Operator | May 2017 |
| 11 | Foundation Energy MGT, LLC | | Oil & Gas Operator | Jan 2014 |
| 12 | Gore Oil Company | Wichita, KS 67202 | Oil & Gas Operator | Dec 2023 |
| 13 | Great Plains Energy, Inc. | Lincoln, NE 68516 | Oil & Gas Operator | Dec 2023 |
| 14 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Mar 2024 |
| 15 | H & R Exploration & Production, Inc. | Sidney, NE 69162 | Oil Operator | May 2007 |
| 16 | Hummon Corp. | Medicine Lodge, KS 67104 | Oil & Gas Operator | Apr 2023 |
| 17 | Kaler Oil Company | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2022 |
| 18 | Mica Energy Corp. | Lincoln, NE 68516 | Oil & Gas Operator | Dec 2010 |
| 19 | Murfin Drilling Co., Inc. | Wichita, KS 67202 | Oil & Gas Operator | Feb 2024 |
| 20 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Apr 2024 |
| 21 | Robuck Petroleum, LLC | Flower Mound, TX 75028 | Oil & Gas Operator | Apr 2024 |
| 22 | Smith Red Plains Production | | Oil & Gas Operator | Dec 2022 |
| 23 | Urban Oil & Gas Group, LLC | Plano, TX 75074 | Oil & Gas Operator | Apr 2024 |