| 1 | 3 S Production, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 2 | 5-N Energy | Winnsboro, TX 75494 | Oil & Gas Operator | Aug 2011 |
| 3 | 9K Investments LLC | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 4 | A.E.N. Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jan 1996 |
| 5 | Abernathy Auto, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Jul 2025 |
| 6 | Adair Resources Inc. | Ennis, TX 75120 | Oil & Gas Operator | Apr 2018 |
| 7 | Advance Exploration | Abilene, TX 79601 | Oil & Gas Operator | Jul 2025 |
| 8 | Allar Co., The | Graham, TX 76450 | Oil & Gas Operator | Dec 2004 |
| 9 | Ambrit Energy Corporation | Garland, TX 75044 | Oil & Gas Operator | Jun 2003 |
| 10 | American West | Burkett, TX 76828 | Oil & Gas Operator | Jul 2025 |
| 11 | Ameritech Oil & Gas Corporation | Dallas, TX 75248 | Oil & Gas Operator | May 1996 |
| 12 | Ames Oil | Cross Plains, TX 76443 | Oil & Gas Operator | Jul 2025 |
| 13 | Amt Resources, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 14 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Jul 2025 |
| 15 | Anderson Production | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 16 | Anderson, E D | Cisco, TX 76437 | Oil & Gas Operator | Nov 2009 |
| 17 | Archer Petroleum | Frisco, TX 75034 | Oil & Gas Operator | Aug 2021 |
| 18 | Arnot Oil Company, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 19 | Arnot, W. G., Jr. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2017 |
| 20 | Ashbrook Oil Co. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2020 |
| 21 | At Oil & Gas, LLC | Eastland, TX 76448 | Oil & Gas Operator | Jul 2025 |
| 22 | Atmos Pipeline - Texas | Dallas, TX 75240 | Oil & Gas Operator | Jul 2025 |
| 23 | Ausanka Oil Operations | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1995 |
| 24 | Austin Energy Operations, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Jul 2025 |
| 25 | B & B Oil, Inc. | Kerrville, TX 78028 | Oil & Gas Operator | Jul 2025 |
| 26 | B & B Operating Company | Odessa, TX 79760 | Oil & Gas Operator | Jul 2025 |
| 27 | B & D Enterprises | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2014 |
| 28 | B&L Operating Co. | Price, TX 75687 | Oil & Gas Operator | Jul 2025 |
| 29 | B-W Oil | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 30 | Bacon Energy | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 31 | Ball Producing Co. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2025 |
| 32 | Bam Operating, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Nov 2014 |
| 33 | Bandera Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2018 |
| 34 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 35 | Barnett Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 1999 |
| 36 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 37 | Bayou Operating Company, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jul 2025 |
| 38 | Bear Springs Oil & Gas, L.L.C | Gorman, TX 76454 | Oil & Gas Operator | Jul 2025 |
| 39 | Bedford Oil & Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Jul 2025 |
| 40 | Belcor Inc. | Irvine, CA 92714 | Oil & Gas Operator | Nov 2000 |
| 41 | Bendorf Services & Supply Co | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 42 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 43 | Betwell Oil & Gas Company | Hialeah, FL 33002 | Oil & Gas Operator | Jul 2025 |
| 44 | Big State Industries, Inc. | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 45 | Big Tio, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Jul 2025 |
| 46 | Bilmac Oil Co., Inc. | Abilene, TX 79601 | Oil & Gas Operator | Jul 2025 |
| 47 | Bitz, M. J. Company | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 2003 |
| 48 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 49 | Bluff Creek Petroleum, LLC | Abilene, TX 79603 | Oil & Gas Operator | Jul 2025 |
| 50 | Bomar Oil & Gas, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Dec 2020 |
| 51 | Bonfire Operating LLC | Cresson, TX 76035 | Oil & Gas Operator | Jul 2025 |
| 52 | Boo-Row Pipe & Supply, Inc. | Albany, TX 76430 | Oil & Gas Operator | Jan 2007 |
| 53 | Boondocks Solutions LLC | Tomball, TX 77375 | Oil & Gas Operator | Jul 2025 |
| 54 | Boykin, Ross Oil Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Dec 2016 |
| 55 | BP Exploration | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 56 | Braka Operating, L.L.C. | Ranger, TX 76470 | Oil & Gas Operator | Jul 2025 |
| 57 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 58 | Brazos Resources, Inc. | College Sta, TX 77840 | Oil & Gas Operator | Dec 1998 |
| 59 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Apr 2025 |
| 60 | Brico Oil, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 61 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2025 |
| 62 | Bruce Operating Account | Graham, TX 76450 | Oil & Gas Operator | Aug 2003 |
| 63 | Buck Wheat Resources, L.P. | Eastland, TX 76448 | Oil & Gas Operator | Jul 2025 |
| 64 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 65 | Bullet Development, LLC | Abilene, TX 79601 | Oil & Gas Operator | Jul 2025 |
| 66 | Burger, F.W. Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 67 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 68 | Burton Services, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2025 |
| 69 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 70 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Jul 2025 |
| 71 | Byrne Oil Company | Lubbock, TX 79424 | Oil & Gas Operator | Jul 2025 |
| 72 | Byrne, Robert E. | Lubbock, TX 79416 | Oil & Gas Operator | Jan 2005 |
| 73 | C & S Oil Company | Odessa, TX 79763 | Oil & Gas Operator | Nov 2019 |
| 74 | C S J, Inc. | Austin, TX 78716 | Oil & Gas Operator | Jul 2025 |
| 75 | Cal-Tex Fossil, L.L.C. | Graham, TX 76450 | Oil & Gas Operator | May 2020 |
| 76 | Callarman, David | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 77 | Can-Tex Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Nov 2003 |
| 78 | Caraway Operating Co. | San Angelo, TX 76902 | Oil & Gas Operator | Jul 2025 |
| 79 | Caraway, Robert R. | Cisco, TX 76437 | Oil & Gas Operator | Jul 2025 |
| 80 | Carbon Economy LLC | Chickasha, OK 73023 | Oil & Gas Operator | May 2025 |
| 81 | Carrland Oil & Gas Inc. | Prosper, TX 75078 | Oil & Gas Operator | Jul 2025 |
| 82 | Carter Energy Corporation | Duncanville, TX 75138 | Oil & Gas Operator | Sep 2010 |
| 83 | Castle Gas Corporation | San Angelo, TX 76902 | Oil & Gas Operator | Oct 2014 |
| 84 | CD Consulting & Operating Co. | Bridgeport, TX 76426 | Oil & Gas Operator | Jul 2025 |
| 85 | CDJ Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 86 | CDX Gas, LLC | The Woodlands, TX 77380 | Oil & Gas Operator | Oct 2009 |
| 87 | Cegx Of Texas LLC | Eastland, TX 76448 | Oil Operator | Mar 2018 |
| 88 | Central Basin Oil Inv. Inc. | Southlake, TX 76092 | Oil & Gas Operator | Jul 2025 |
| 89 | Chambers, R. H. | Abilene, TX 79606 | Oil & Gas Operator | Apr 2006 |
| 90 | Chambers, R. H. LLC | Abilene, TX 79606 | Oil & Gas Operator | Jul 2025 |
| 91 | Chapparal Operating Co. | Fort Worth, TX 76121 | Oil & Gas Operator | Jul 2025 |
| 92 | Chenoweth, Grover | Marble Falls, TX 78654 | Oil & Gas Operator | Dec 2024 |
| 93 | Chisholm Operating, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Jul 2025 |
| 94 | Cholla Petroleum Inc | Dallas, TX 75225 | Oil & Gas Operator | Jul 2025 |
| 95 | Christie Oil Co., Inc | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 1996 |
| 96 | Cimarex Energy Co. Of Colorado | Midland, TX 79706 | Oil & Gas Operator | Jul 2025 |
| 97 | Circle Ridge Production, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jul 2025 |
| 98 | Cisco Production Company, LLC | Victoria, TX 77902 | Oil & Gas Operator | May 2012 |
| 99 | Citation Oil & Gas Corp. | Houston, TX 77269 | Oil & Gas Operator | Jul 2025 |
| 100 | Clark, B. C. | Cross Plains, TX 76443 | Oil Operator | Dec 2007 |