| 1 | Barbara A Giblin Revocable Trust | | Oil Operator | Jan 2020 |
| 2 | Bauer Oil Investment LLC | Cleveland, MO 64734 | Oil Operator | Dec 2020 |
| 3 | Beasley, Melissa | | Oil Operator | Dec 2019 |
| 4 | Brant Energy LLC | Rantoul, KS 66079 | Oil Operator | Dec 2020 |
| 5 | Carmel Energy, Inc. | | Oil Operator | Dec 2009 |
| 6 | Colt Energy Inc | Iola, KS 66749 | Oil & Gas Operator | Dec 2020 |
| 7 | Continental Exploration, Inc. | | Oil Operator | Dec 2001 |
| 8 | D. E. Exploration, Inc. | Wellsville, KS 66092 | Oil & Gas Operator | Dec 2020 |
| 9 | Encore Energy Partners LLC | | Oil Operator | Feb 2017 |
| 10 | Investment Equipment LLC | FT Morgan, CO 80701 | Oil & Gas Operator | Jan 2021 |
| 11 | James K. Anderson, Inc. | | Oil Operator | Dec 1999 |
| 12 | JTC Oil Inc. | Osawatomie, KS 66064 | Oil Operator | Dec 2020 |
| 13 | Kansas Resource Exploration And Development | | Oil Operator | Jan 2020 |
| 14 | L & T Oil Co., Inc. | Midland, TX 79705 | Oil & Gas Operator | Apr 2021 |
| 15 | Osborn Energy, LLC | Bucyrus, KS 66013 | Oil & Gas Operator | Jul 2017 |
| 16 | Palo Chop Development LLC | | Oil Operator | Aug 2018 |
| 17 | Paluca Petroleum Inc | Holdenville, OK 74848-0002 | Oil & Gas Operator | Jan 2021 |
| 18 | Pense Brothers Drilling | | Oil Operator | Dec 1998 |
| 19 | Running Foxes Petroleum Inc. | Centennial, CO 80112 | Oil & Gas Operator | Feb 2021 |
| 20 | S&B Operating LLC | Overland Park, KS 66202 | Oil Operator | Jan 2020 |
| 21 | SCZ Resources, LLC | Houston, TX 77055 | Oil Operator | Dec 2020 |
| 22 | Spire Missouri Inc. | | Oil Operator | Feb 2020 |
| 23 | Town Oil Co. | Paola, KS 66071 | Oil & Gas Operator | Dec 2020 |
| 24 | Warrior Operating Company Inc. | | Gas Operator | Nov 2019 |
| 25 | Western Engineering, Inc. | | Oil Operator | Dec 1998 |