| 1 | Acoma Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Oct 2025 |
| 2 | Alaron Energy, Inc. | Irving, TX 75038 | Oil & Gas Operator | Oct 2025 |
| 3 | Altura Energy LTD. | Houston, TX 77210 | Oil & Gas Operator | Apr 2000 |
| 4 | Amerind Oil Company, LTD. | Midland, TX 79701 | Oil & Gas Operator | Nov 2004 |
| 5 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 6 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 7 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 8 | Antle Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 9 | Atlas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Oct 2025 |
| 10 | B.A.R. Treating Service, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 2025 |
| 11 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 12 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 13 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 14 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 15 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 16 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 17 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 18 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 19 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 20 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 21 | Chesapeake Operating, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2025 |
| 22 | CML Exploration, LLC | Austin, TX 78746 | Oil & Gas Operator | Oct 2025 |
| 23 | Cobalt Energy LLC | Wichita, KS 67202 | Oil & Gas Operator | Jun 2025 |
| 24 | COG Operating LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 25 | Concho Exploration Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2015 |
| 26 | Conoco Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2015 |
| 27 | Crownquest Operating, LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 28 | Devon Energy Production Company LP | Oklahoma City, OK 73102 | Oil & Gas Operator | Oct 2025 |
| 29 | Devon SFS Operating Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Mar 2008 |
| 30 | Dinero Operating Co | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 31 | Dorado Oil Company | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Oct 2013 |
| 32 | Double Eagle Operating, LLC | Fort Worth, TX 76113 | Oil & Gas Operator | Oct 2025 |
| 33 | Enercorp Resources, Inc. | Houston, TX 77027 | Oil & Gas Operator | Dec 1993 |
| 34 | Extex Operating Company | Houston, TX 77057 | Oil & Gas Operator | Oct 2025 |
| 35 | Finley Resources Inc | Fort Worth, TX 76113 | Oil & Gas Operator | Oct 2025 |
| 36 | Halvey Energy Co. | Midland, TX 79702 | Oil & Gas Operator | Oct 2004 |
| 37 | HMH Operators, Inc. | Midland, TX 79701 | Oil & Gas Operator | Aug 2003 |
| 38 | Hunt Oil Company | Dallas, TX 75201 | Oil & Gas Operator | Oct 2025 |
| 39 | Invoil, Inc. | Oklahoma City, OK 73112 | Oil & Gas Operator | Oct 2025 |
| 40 | JJ Operations, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Oct 2025 |
| 41 | Lackey, William H. Oil And Gas | Shawnee, OK 74804 | Oil & Gas Operator | Feb 2024 |
| 42 | Lario Oil & Gas Company | Odessa, TX 79762 | Oil & Gas Operator | Oct 2025 |
| 43 | Legacy Reserves Operating LP | Denver, CO 80201 | Oil & Gas Operator | Oct 2025 |
| 44 | M. E. Operating & Services, Inc. | Fort Worth, TX 76104 | Oil & Gas Operator | Oct 2025 |
| 45 | Madison And Wright LLC | The Colony, TX 75056 | Oil & Gas Operator | Oct 2025 |
| 46 | Maralo, Inc. | Midland, TX 79702 | Oil & Gas Operator | Dec 1998 |
| 47 | McCurdy Energy LLC | Midland, TX 79705 | Oil Operator | Oct 2025 |
| 48 | McDonald Production | Lubbock, TX 79408 | Oil & Gas Operator | Mar 2003 |
| 49 | Melton, Joe, DRLG. Co., Inc. | Midland, TX 79704 | Oil & Gas Operator | Dec 2004 |
| 50 | Meridian Oil Inc. | Houston, TX 77210 | Oil & Gas Operator | Aug 1996 |
| 51 | Midland Oil And Gas, Inc. | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 52 | NBL Permian LLC | Houston, TX 77070 | Oil & Gas Operator | Aug 2018 |
| 53 | North American Royalties, Inc. | Chattanooga, TN 37408 | Oil & Gas Operator | Oct 2001 |
| 54 | Occidental Energy Marketing, Inc. | Houston, TX 77227 | Gas Operator | Sep 2015 |
| 55 | Occidental Permian LTD. | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 56 | Ostrich Oil & Gas, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 57 | Oxy USA WTP LP | Houston, TX 77046 | Oil & Gas Operator | Oct 2025 |
| 58 | Patriot Resources, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2017 |
| 59 | Pickens Company, Inc., The | Dallas, TX 75225 | Oil & Gas Operator | Jan 2025 |
| 60 | Pioneer Exploration, LLC | Houston, TX 77090 | Oil & Gas Operator | Aug 2025 |
| 61 | Pioneer Exploration, LTD. | Houston, TX 77090 | Oil & Gas Operator | Sep 2008 |
| 62 | Pitts Energy Co. | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 63 | Quatro Oil And Gas, Inc. | Joshua, TX 76058 | Oil & Gas Operator | Oct 2025 |
| 64 | Rayden | Midland, TX 79711 | Oil & Gas Operator | Oct 2025 |
| 65 | Ricks Expl Acquisition Corp | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2004 |
| 66 | Ricks Expl Acquisition LLC | Midland, TX 79701 | Oil & Gas Operator | Aug 2013 |
| 67 | Ricks Exploration, Inc. | Oklahoma City, OK 73154 | Oil & Gas Operator | Mar 2008 |
| 68 | S & M Drilling, LLC | Wichita Falls, TX 76308 | Oil Operator | Sep 2023 |
| 69 | Sink Hole, Inc. | Levelland, TX 79336 | Oil & Gas Operator | Dec 2000 |
| 70 | Snow Oil & Gas Inc. | Andrews, TX 79714 | Oil & Gas Operator | Oct 2025 |
| 71 | Starkey Oilfield Service, Inc. | Sweet Home, TX 77987 | Oil & Gas Operator | Aug 2004 |
| 72 | Swanson, Tommy Oil Co. | Electra, TX 76360 | Oil & Gas Operator | Mar 2017 |
| 73 | Texon Oil Company, Inc. | Midland, TX 79710 | Oil & Gas Operator | Apr 2023 |
| 74 | Texstar Operating Inc. | Lubbock, TX 79423 | Oil & Gas Operator | Oct 2025 |
| 75 | Three Rivers Operating Co LLC | Austin, TX 78735 | Oil & Gas Operator | Mar 2017 |
| 76 | Three Span Oil & Gas, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 77 | Threshold Development Company | Fort Worth, TX 76109 | Oil & Gas Operator | Aug 2016 |
| 78 | Triumph Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 79 | Upp Operating, LLC | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 80 | V-F Petroleum Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 81 | Vanco Oil & Gas Corp. | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 82 | Wagner & Brown, LTD. | Midland, TX 79702 | Oil & Gas Operator | Aug 2014 |
| 83 | Walkabout Operating, LLC | Lubbock, TX 79424 | Oil & Gas Operator | Oct 2025 |
| 84 | Walsh, F H Jr. Operating Co. Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2019 |
| 85 | Warwick Associates LC | Oklahoma City, OK 73112 | Oil & Gas Operator | Jun 2025 |
| 86 | WG Oil, LLC | Wichita Falls, TX 76308 | Oil Operator | Oct 2025 |
| 87 | Wheeler Operating Corporation | Fort Worth, TX 76109 | Oil & Gas Operator | Oct 2025 |
| 88 | White Rock Oil & Gas, LLC | Plano, TX 75024 | Oil & Gas Operator | Oct 2025 |
| 89 | Whiting Oil And Gas Corporation | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 90 | Williams, A. Oil | Wichita Falls, TX 76308 | Oil Operator | Oct 2025 |
| 91 | Young Marshall R Oil Co | Fort Worth, TX 76107 | Oil & Gas Operator | Mar 2011 |
| 92 | Zebra Oil And Gas | Lubbock, TX 79423 | Oil & Gas Operator | Aug 2002 |