| 1 | Adkins, R. L. Corp. | Lubbock, TX 79408 | Oil & Gas Operator | Jun 2013 |
| 2 | Alliance Ogo, LP | Pleasanton, CA 94588 | Oil & Gas Operator | Dec 2025 |
| 3 | Alpine Petroleum | Abilene, TX 79608 | Oil & Gas Operator | Jul 2018 |
| 4 | Argee Oil Company | Midland, TX 79702 | Gas Operator | May 1994 |
| 5 | Ashland Exploration Inc | Houston, TX 77218 | Oil & Gas Operator | Nov 2000 |
| 6 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 7 | Basa Resources, Inc. | Dallas, TX 75254 | Oil & Gas Operator | Dec 2025 |
| 8 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Dec 2025 |
| 9 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 10 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 11 | BKM Production | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2025 |
| 12 | Black Dome Energy Corporation | Golden, CO 80401 | Oil & Gas Operator | Dec 2019 |
| 13 | Bob & Ted'S Operating | Lewisville, TX 75067 | Oil & Gas Operator | Apr 1993 |
| 14 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 15 | Borders, Delbert L. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2019 |
| 16 | Breitburn Operating LP | Keithville, LA 71047 | Oil & Gas Operator | Dec 2025 |
| 17 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2025 |
| 18 | Buck Wheat Resources, L.P. | Eastland, TX 76448 | Oil & Gas Operator | Dec 2025 |
| 19 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 20 | Burk-Gunn Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 21 | Canan Mowrey Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 22 | Carroll Operating, LLC | Abilene, TX 79608 | Oil & Gas Operator | Feb 2022 |
| 23 | CCV, Inc. | Houston, TX 77019 | Oil & Gas Operator | Sep 1994 |
| 24 | Chisholm Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Dec 2025 |
| 25 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Dec 2025 |
| 26 | Clear Fork, Incorporated | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 27 | Covenant Operating, LLC | Wichita Falls, TX 76308 | Oil Operator | Dec 2025 |
| 28 | Cox, John L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2015 |
| 29 | Creed Operating Co., LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Dec 2025 |
| 30 | Crego Exploration | Dallas, TX 75243 | Oil & Gas Operator | Dec 2025 |
| 31 | Creston Petroleum Corp. | Dallas, TX 75380 | Oil & Gas Operator | Dec 2025 |
| 32 | Cypress Production, Inc. | Azle, TX 76020 | Oil & Gas Operator | Dec 2025 |
| 33 | D.J.F. Services, Inc. | Holdenville, OK 74848 | Oil & Gas Operator | Dec 2025 |
| 34 | Dean Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Nov 2019 |
| 35 | Delray Oil, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Dec 2025 |
| 36 | Dominion Oklahoma Texas E&P, Inc | Richmond, VA 23219 | Oil & Gas Operator | Sep 2018 |
| 37 | Draco Energy, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 38 | Dreyfus, Louis Natural Gas Corp | Oklahoma City, OK 73134 | Oil & Gas Operator | Nov 2001 |
| 39 | Durango Operating Co., Inc. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2002 |
| 40 | DWR Oil Company | Merkel, TX 79536 | Oil & Gas Operator | Aug 2025 |
| 41 | E.G. Operating | Dallas, TX 75206 | Oil & Gas Operator | Mar 2008 |
| 42 | Eastern Energy Corporation | Bowling Green, KY 42104 | Oil & Gas Operator | Dec 2014 |
| 43 | Energy Resource & Develop., Corp | Rockwall, TX 75087 | Oil & Gas Operator | Jun 1998 |
| 44 | Energy Transfer Crude Marketing LLC | Dallas, TX 75225 | Oil Operator | Aug 2025 |
| 45 | Exco Resources Inc | Dallas, TX 75251 | Oil & Gas Operator | Aug 2025 |
| 46 | Ginnings Company | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 2025 |
| 47 | Great Western Drilling Company | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 48 | Guffey, Roy, Oil Company | Dallas, TX 75206 | Oil & Gas Operator | Aug 2011 |
| 49 | Gunn Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2025 |
| 50 | H-M Resource Management, Inc. | Houston, TX 77055 | Oil & Gas Operator | Feb 2023 |
| 51 | Halliburton Operating Company | Plano, TX 75093 | Oil & Gas Operator | Dec 2025 |
| 52 | Henderson & Erickson, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 53 | Henson Exploration, L.P. | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 54 | Hexagon Oil And Gas Inc. | Fort Worth, TX 76132 | Oil & Gas Operator | Dec 2025 |
| 55 | HGN Operating I, LLC | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 56 | High Island Oil Corporation | Houston, TX 77002 | Oil & Gas Operator | Jun 2017 |
| 57 | Inland Ocean, Inc. | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2025 |
| 58 | Ip Petroleum Company, Inc. | Houston, TX 77210 | Oil & Gas Operator | Mar 2008 |
| 59 | J & J Trading | Abilene, TX 79608 | Oil & Gas Operator | Dec 2004 |
| 60 | Jla Resources Company | Austin, TX 78746 | Oil & Gas Operator | Dec 2025 |
| 61 | JM Cox Resources LP | Midland, TX 79702 | Oil & Gas Operator | Apr 2019 |
| 62 | Jordan Engineering, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Dec 2025 |
| 63 | Kaiser-Francis Oil Company | Tulsa, OK 74121 | Oil & Gas Operator | Dec 2025 |
| 64 | Kebo Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Dec 2025 |
| 65 | Kerr-McGee Corporation | Dallas, TX 75380 | Oil & Gas Operator | Aug 2025 |
| 66 | Kerr-McGee Oil & Gas Onshore LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Feb 2017 |
| 67 | Klabzuba Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Aug 2013 |
| 68 | Kojo Energy, Inc. | Odessa, TX 79760 | Oil & Gas Operator | Dec 2025 |
| 69 | Krocan Energy Corporation | Bowling Green, KY 42102 | Oil & Gas Operator | Dec 2025 |
| 70 | L.C.S. Production Company | Abilene, TX 79608 | Oil & Gas Operator | Dec 2025 |
| 71 | Laloc | Aspermont, TX 79502 | Oil & Gas Operator | Dec 2025 |
| 72 | Lapetco Inc | Plano, TX 75093 | Oil & Gas Operator | Aug 2024 |
| 73 | Leclair Operating Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2025 |
| 74 | Leclair Operating, L.L.C. | Abilene, TX 79602 | Oil & Gas Operator | Dec 2025 |
| 75 | Lone Star Operations LLC | Lubbock, TX 79401 | Oil & Gas Operator | Dec 2025 |
| 76 | Lundberg Operating Corporation | Dallas, TX 75225 | Oil & Gas Operator | Oct 2002 |
| 77 | Lytle Creek Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Dec 2025 |
| 78 | Marshall & Winston, Inc. | Midland, TX 79710 | Oil & Gas Operator | Sep 2025 |
| 79 | Maverick Properties, Inc. | San Antonio, TX 78209 | Oil & Gas Operator | Sep 1994 |
| 80 | McCabe Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Aug 2009 |
| 81 | McDonald Production | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2003 |
| 82 | McDonald Production, LLC | Lubbock, TX 79408 | Oil Operator | Dec 2025 |
| 83 | Medders Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 84 | Merit Energy Company | Dallas, TX 75240 | Oil & Gas Operator | Dec 2025 |
| 85 | NBL Permian LLC | Houston, TX 77070 | Oil & Gas Operator | Aug 2018 |
| 86 | North Texas Plugging, LLC | Denton, TX 76205 | Oil & Gas Operator | Dec 2025 |
| 87 | Oklahoma Marlin Oil Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Feb 2020 |
| 88 | Oryx Energy Company | Dallas, TX 75221 | Oil & Gas Operator | May 2002 |
| 89 | Palmer Oil Properties | Post, TX 79356 | Oil & Gas Operator | Dec 2025 |
| 90 | Patterson Petroleum, Inc. | Snyder, TX 79550 | Oil & Gas Operator | Feb 2000 |
| 91 | Patton Exploration, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2025 |
| 92 | Petex | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2025 |
| 93 | Petro-West Corporation | Lubbock, TX 79404 | Oil & Gas Operator | Oct 2001 |
| 94 | Petrogulf Corporation | Denver, CO 80202 | Oil & Gas Operator | Dec 2025 |
| 95 | Petrosource Energy Corporation | Fort Worth, TX 76112 | Oil & Gas Operator | Dec 2025 |
| 96 | Polk Petroleum, Inc. | Abilene, TX 79604 | Oil & Gas Operator | May 2024 |
| 97 | Proco Operating Co., Inc. | Graford, TX 76449 | Oil & Gas Operator | Dec 2025 |
| 98 | Quail Operating, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Dec 2025 |
| 99 | R K Petroleum Corp. | Midland, TX 79708 | Oil & Gas Operator | May 2024 |
| 100 | Reatta Energy, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |