| 1 | 1836 Energy LLC | El Campo, TX 77437 | Oil Operator | Oct 2025 |
| 2 | 3 S Production, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Oct 2025 |
| 3 | 3-D Oil & Gas | Winters, TX 79567 | Oil & Gas Operator | Oct 2025 |
| 4 | 3-L Drilling | Abilene, TX 79605 | Oil & Gas Operator | Oct 2025 |
| 5 | 5 Schkade | Albany, TX 76430 | Oil Operator | Oct 2025 |
| 6 | 5L Properties, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 7 | 77 Oil Properties, Inc. | Wichita Falls, TX 76307 | Gas Operator | Mar 2002 |
| 8 | A.E.N. Energy | Abilene, TX 79608 | Oil & Gas Operator | Feb 2005 |
| 9 | A.E.N. Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jan 1996 |
| 10 | Abel Production Company | San Angelo, TX 76904 | Oil & Gas Operator | Sep 2000 |
| 11 | Abernathy Auto, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 12 | Abilene American Energy, LLC | Abilene, TX 79602 | Oil Operator | Oct 2025 |
| 13 | Abtex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2006 |
| 14 | Adair Resources Inc. | Ennis, TX 75120 | Oil & Gas Operator | Apr 2018 |
| 15 | Adenryen, LTD. Co. | Richardson, TX 75082 | Oil Operator | Oct 2025 |
| 16 | Afe Oil & Gas Consultants | Addison, TX 75001 | Gas Operator | Jan 2003 |
| 17 | Alaron Energy, Inc. | Irving, TX 75038 | Oil & Gas Operator | Oct 2025 |
| 18 | Alda Oil & Gas Corporation | Nichols Hill, OK 73116 | Oil & Gas Operator | Jan 2004 |
| 19 | Allegro Operating, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Oct 2025 |
| 20 | Alpine Petroleum | Abilene, TX 79608 | Oil & Gas Operator | Jul 2018 |
| 21 | Altair Energy Corp. | Tyler, TX 75702 | Oil & Gas Operator | Jun 1994 |
| 22 | Ambrit Energy Corporation | Garland, TX 75044 | Oil & Gas Operator | Jun 2003 |
| 23 | Amen Oil LLC | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 24 | American Eagle Operating, Inc. | Spring, TX 77386 | Oil Operator | Aug 2010 |
| 25 | American Energy | Abilene, TX 79604 | Oil & Gas Operator | Jul 2004 |
| 26 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
| 27 | American Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2003 |
| 28 | American West | Burkett, TX 76828 | Oil & Gas Operator | Oct 2025 |
| 29 | Ames Oil | Cross Plains, TX 76443 | Oil & Gas Operator | Oct 2025 |
| 30 | Ampak Oil Company | Plano, TX 75074 | Oil & Gas Operator | Oct 2025 |
| 31 | Anderson Production | Cisco, TX 76437 | Oil & Gas Operator | Oct 2025 |
| 32 | Anderson, E D | Cisco, TX 76437 | Oil & Gas Operator | Nov 2009 |
| 33 | Antilley, Joe | Abilene, TX 79602 | Oil & Gas Operator | Jan 2024 |
| 34 | Aop Operating Corporation | Dallas, TX 75313 | Oil & Gas Operator | Aug 2003 |
| 35 | Archer Petroleum | Frisco, TX 75034 | Oil & Gas Operator | Aug 2021 |
| 36 | Arledge & Young, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Feb 1999 |
| 37 | Arnot Oil Company, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 38 | Arnot, W. G., Jr. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2017 |
| 39 | Arrowood Production Inc | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2008 |
| 40 | Atlas Energy Corporation (Del.) | Oklahoma City, OK 73112 | Oil & Gas Operator | Oct 2025 |
| 41 | Atmos Pipeline - Texas | Dallas, TX 75240 | Oil & Gas Operator | Oct 2025 |
| 42 | Atwell Oil & Gas, Inc. | Cross Plains, TX 76443 | Oil & Gas Operator | Oct 2025 |
| 43 | Atwell Technical Services, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 44 | Augusta Oil & Gas | Abilene, TX 79604 | Oil & Gas Operator | Nov 2002 |
| 45 | Augusta Oil & Gas Inc | Abilene, TX 79604 | Oil & Gas Operator | Dec 2015 |
| 46 | Aurora Gas, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jan 2000 |
| 47 | Austin Energy Operations, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Oct 2025 |
| 48 | Avips Petroleum, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Jun 1996 |
| 49 | Ayers, R.B. | Sidney, TX 76474 | Oil & Gas Operator | Apr 2003 |
| 50 | B P Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Nov 2007 |
| 51 | B&L Operating Co. | Price, TX 75687 | Oil & Gas Operator | Oct 2025 |
| 52 | B-W Oil | Cisco, TX 76437 | Oil & Gas Operator | Oct 2025 |
| 53 | Bacon Energy | Cisco, TX 76437 | Oil & Gas Operator | Oct 2025 |
| 54 | Bam Production Company | Granbury, TX 76048 | Oil & Gas Operator | Aug 2003 |
| 55 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 56 | Bara Corporation | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2004 |
| 57 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 58 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 59 | Bayou Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Oct 2025 |
| 60 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 61 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 62 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | Oct 2025 |
| 63 | Bedford Oil & Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Oct 2025 |
| 64 | Bennett Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 65 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 66 | Berry Energy Companies | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 67 | Big State Industries, Inc. | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 68 | Bilmac Oil Co., Inc. | Abilene, TX 79601 | Oil & Gas Operator | Oct 2025 |
| 69 | Bitz, M. J. Company | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 2003 |
| 70 | Blue Oil, Inc. | Burnet, TX 78611 | Oil & Gas Operator | Oct 2025 |
| 71 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 72 | Bonfire Operating LLC | Cresson, TX 76035 | Oil & Gas Operator | Oct 2025 |
| 73 | Boo-Row Pipe & Supply, Inc. | Albany, TX 76430 | Oil & Gas Operator | Jan 2007 |
| 74 | Borden, Roland Inc. | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 75 | Boyd, Clyde Oil & Gas | Graham, TX 76450 | Oil & Gas Operator | Jan 2004 |
| 76 | Braka Operating, L.L.C. | Ranger, TX 76470 | Oil & Gas Operator | Oct 2025 |
| 77 | Brazos Resources, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Dec 1998 |
| 78 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 79 | Brico Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Oct 2025 |
| 80 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Oct 2025 |
| 81 | Brittany Drilling Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2000 |
| 82 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 83 | Buffco Production, Inc. | Longview, TX 75606 | Oil & Gas Operator | Oct 2025 |
| 84 | Bullet Development, LLC | Abilene, TX 79601 | Oil & Gas Operator | Oct 2025 |
| 85 | Bussey, Joe F. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 86 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 87 | C & C Petroleum Management, LLC | Abilene, TX 79601 | Oil & Gas Operator | Oct 2025 |
| 88 | C & L Oil Company | Cross Plains, TX 76443 | Oil & Gas Operator | Oct 2025 |
| 89 | Cabana Oil Corp. | Abilene, TX 79608 | Oil & Gas Operator | Feb 2006 |
| 90 | Cal-Tex Fossil, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 91 | Callahan Land Company | Richardson, TX 75081 | Oil & Gas Operator | Sep 2020 |
| 92 | Canan Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 93 | Cardinal Producing Co. | Abilene, TX 79606 | Oil & Gas Operator | Aug 2003 |
| 94 | Carrland Oil & Gas Inc. | Prosper, TX 75078 | Oil & Gas Operator | Oct 2025 |
| 95 | CDJ Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Oct 2025 |
| 96 | Cedar Oil Company | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 97 | Cedar Ridge Energy, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Oct 2025 |
| 98 | Celero Energy LP | Midland, TX 79701 | Oil & Gas Operator | May 2011 |
| 99 | Central Energy Producing Company | San Antonio, TX 78217 | Oil & Gas Operator | Sep 2003 |
| 100 | Chalmers Exploration Company | Abilene, TX 79608 | Oil & Gas Operator | Apr 1997 |