| 1 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 2 | Axis Exploration LLC | | Oil & Gas Operator | Sep 2025 |
| 3 | Bates* James Edward | | Oil & Gas Operator | Jul 2017 |
| 4 | Bayswater Exploration & Production LLC | Denver, CO 80202 | Oil & Gas Operator | Sep 2025 |
| 5 | Becca Oil LLC | Cushing, OK 74023-1347 | Oil & Gas Operator | Aug 2025 |
| 6 | Behrens Resources Inc | | Oil & Gas Operator | Jul 2019 |
| 7 | Chaco Energy Company | Denver, CO 80201 | Oil & Gas Operator | Oct 2025 |
| 8 | Colorado Interstate Gas Company LLC | Colorado Springs, CO 80944 | Oil & Gas Operator | Sep 2025 |
| 9 | Colton Limited Liability Co | | Oil & Gas Operator | Sep 2023 |
| 10 | ConocoPhillips Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 11 | Crestone Peak Resources Operating LLC | | Oil & Gas Operator | Sep 2025 |
| 12 | Enervest Operating LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 13 | Fahey Oil & Gas | | Oil & Gas Operator | Jul 2021 |
| 14 | GMT Exploration Company LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 15 | Griffin Management LLC | | Oil & Gas Operator | Feb 2010 |
| 16 | H & M Petroleum Corporation | Lincoln, NE 68516 | Oil & Gas Operator | Jun 2025 |
| 17 | JFH Oil & Gas LLC | | Oil Operator | Oct 2022 |
| 18 | K P Kauffman Company Inc | Denver, CO 80203 | Oil & Gas Operator | Sep 2025 |
| 19 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 20 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2025 |
| 21 | Overland Resources LLC | Greenwood VIllage, CO 80111 | Oil & Gas Operator | Feb 2019 |
| 22 | P & M Petroleum Management LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2021 |
| 23 | PDC Energy Inc | Denver, CO 80203 | Oil & Gas Operator | Sep 2025 |
| 24 | Peterson Energy Operating Inc | Loveland, CO 80537 | Oil & Gas Operator | Oct 2025 |
| 25 | Petroshare Corporation | | Oil & Gas Operator | Jan 2024 |
| 26 | Poncho Production Co | | Oil & Gas Operator | Jan 2022 |
| 27 | Renegade Oil & Gas Company LLC | | Oil & Gas Operator | Sep 2025 |
| 28 | S & D LLC | | Oil & Gas Operator | Aug 2022 |
| 29 | Sandlin Oil Corp | Dacono, CO 80514 | Oil & Gas Operator | Oct 2025 |
| 30 | Smith Energy Corp | | Oil & Gas Operator | Jan 2024 |
| 31 | Sunburst, Inc. | Wheat Ridge, CO 80033 | Oil & Gas Operator | Oct 2025 |
| 32 | SWN Production Company, LLC | Spring, TX 77391 | Oil & Gas Operator | Sep 2025 |
| 33 | Trinity Energy Corp | Gibsonia, PA 15044-9106 | Oil & Gas Operator | Dec 2007 |
| 34 | True Oil LLC | Casper, WY 82602 | Oil & Gas Operator | Oct 2025 |
| 35 | Tyler Rockies Exploration LTD | Tyler, TX 75710-0119 | Oil & Gas Operator | Sep 2025 |
| 36 | United States Exploration, Inc. | Denver, CO 80802 | Oil & Gas Operator | Apr 2007 |