| 1 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 2 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 3 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 4 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Oct 2025 |
| 5 | Chance Oil Co., Inc. | Vernon, TX 76385 | Oil & Gas Operator | Jun 2025 |
| 6 | Chanze Oil Co., Inc. | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2025 |
| 7 | Crawley Petroleum Corporation | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2025 |
| 8 | DDD Exploration Inc | Amarillo, TX 79109 | Oil Operator | Oct 2025 |
| 9 | Eagle Hydrocarbons Inc. | Houston, TX 77079 | Oil & Gas Operator | Jun 2020 |
| 10 | Eagle Resources Inc | Claremore, OK 74019-5398 | Oil & Gas Operator | May 2013 |
| 11 | Excalibur Resources LLC | Houston, TX 77002-5220 | Oil & Gas Operator | Jul 2025 |
| 12 | Exxon Mobil Corporation | Spring, TX 77389 | Oil & Gas Operator | Oct 2025 |
| 13 | Forest Oil Permian Corporation | Houston, TX 77002 | Oil & Gas Operator | Mar 2015 |
| 14 | Fulcrum Exploration, LLC. | Flower Mound, TX 75028 | Oil & Gas Operator | Jun 2025 |
| 15 | GLB Exploration, Inc. | Oklahoma City, OK 73102 | Oil & Gas Operator | Jul 2025 |
| 16 | Gulf Exploration, LLC | Oklahoma City, OK 73114 | Oil & Gas Operator | Sep 2025 |
| 17 | Gulf Production Corporation | Oklahoma City, OK 73114 | Oil & Gas Operator | Apr 2015 |
| 18 | Harding Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2016 |
| 19 | Heights Energy Corporation | Plano, TX 75026 | Oil & Gas Operator | Oct 2025 |
| 20 | Hoppes Helen E | Depew, OK 74028-3428 | Oil & Gas Operator | Apr 2015 |
| 21 | Hunton Oil & Gas Corporation | Oklahoma City, OK 73154-0191 | Oil & Gas Operator | May 2019 |
| 22 | Illoma Oil Company Inc | Algonquin, IL 60102-1825 | Oil & Gas Operator | Mar 2015 |
| 23 | Jones, L. E. Production Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2014 |
| 24 | Jubilee Exploration LLC | Ardmore, OK 73401-7526 | Oil & Gas Operator | Dec 2024 |
| 25 | L.E. Jones Operating, Inc. | Duncan, OK 73534 | Oil & Gas Operator | Aug 2025 |
| 26 | Lewis Oil Corp. | Stillwater, OK 74076 | Oil & Gas Operator | Jun 2025 |
| 27 | Mack Energy Co. | Duncan, OK 73534 | Oil & Gas Operator | Jul 2025 |
| 28 | Masada Oil & Gas | Quanah, TX 79252 | Oil & Gas Operator | Oct 2025 |
| 29 | Minor Mark | FT Worth, TX 76116-1003 | Oil Operator | Nov 2015 |
| 30 | Osterhout Phillip L | Drumright, OK 74030-0693 | Oil & Gas Operator | Jan 2014 |
| 31 | Panther Energy Company, LLC | Tulsa, OK 74103 | Oil & Gas Operator | May 2022 |
| 32 | Payne Exploration Company | Crescent, OK 73028 | Oil & Gas Operator | Jun 2025 |
| 33 | Pioneer Trucking, LLC | | Oil Operator | Jul 2025 |
| 34 | Price, W. H. | Granbury, TX 76048 | Oil & Gas Operator | Jun 2024 |
| 35 | Ratliff Operating Corp. | Amarillo, TX 79105 | Oil & Gas Operator | Oct 2025 |
| 36 | Red Bluff Resources Operating LLC | Oklahoma City, OK 73112-5468 | Oil & Gas Operator | Jun 2025 |
| 37 | Red River Petroleum Inc | Tipton, OK 73570 | Oil Operator | Jun 2025 |
| 38 | Riggins Energy Inc. | Vernon, TX 76385 | Oil & Gas Operator | Jul 2004 |
| 39 | Royale Energy Inc | San Diego, CA 92108-4518 | Oil & Gas Operator | Sep 2025 |
| 40 | Spring Operating Company | Edmond, OK 73034 | Oil & Gas Operator | Jul 2025 |
| 41 | Statoil Oil & Gas LP | Austin, TX 78730 | Oil & Gas Operator | Oct 2018 |
| 42 | Tack Operating LLC | Oklahoma City, OK 73172-1492 | Oil & Gas Operator | Aug 2021 |
| 43 | Texas Energy Operations, LC | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 2025 |
| 44 | Tilford Pinson Exploration LLC | Edmond, OK 73003 | Oil & Gas Operator | Jun 2025 |
| 45 | Trio Operating Company, Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2006 |
| 46 | Veenker Resources, Inc. | Oklahoma City, OK 73113 | Oil & Gas Operator | Jul 2025 |
| 47 | Vitol Inc. | Houston, TX 77098 | Oil & Gas Operator | Sep 2023 |
| 48 | Walsh & Watts Inc | Aledo, TX 76008 | Oil & Gas Operator | Oct 2025 |
| 49 | Westside Wells Inc | Altus, OK 73521 | Oil & Gas Operator | Nov 2020 |
| 50 | Wharton Oil Co. | Vernon, TX 76384 | Oil & Gas Operator | Dec 2000 |
| 51 | Winston Oil Co | Marietta, OH 45750 | Oil & Gas Operator | May 2025 |