| 1 | 2 W Petroleum | Brownwood, TX 76804 | Oil & Gas Operator | May 2026 |
| 2 | 3 S Production, Inc. | Cisco, TX 76437 | Oil & Gas Operator | May 2026 |
| 3 | 4 J'S Production | Zephyr, TX 76890 | Oil & Gas Operator | May 2026 |
| 4 | 4-M Operating Company | Abilene, TX 79601 | Oil & Gas Operator | Jun 2015 |
| 5 | A & T Oil Company | Midland, TX 79707 | Oil & Gas Operator | Sep 2008 |
| 6 | Abel Production Company | San Angelo, TX 76904 | Oil & Gas Operator | Sep 2000 |
| 7 | Adair Resources Inc. | Ennis, TX 75120 | Oil & Gas Operator | Apr 2018 |
| 8 | Aegis Fluids Management, LLC | Plano, TX 75093 | Oil & Gas Operator | May 2026 |
| 9 | Agroil, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | May 2026 |
| 10 | Alpine Gas Company, LLC | Dallas, TX 75201 | Oil & Gas Operator | Oct 2006 |
| 11 | Alps Oil Company | Odessa, TX 79760 | Oil & Gas Operator | Aug 1999 |
| 12 | Ames Oil | Cross Plains, TX 76443 | Oil & Gas Operator | May 2026 |
| 13 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | May 2026 |
| 14 | Anderson Production | Cisco, TX 76437 | Oil & Gas Operator | May 2026 |
| 15 | Anderson, E D | Cisco, TX 76437 | Oil & Gas Operator | Nov 2009 |
| 16 | Anejo Production, LLC | Bangs, TX 76823 | Oil & Gas Operator | May 2026 |
| 17 | Arabie, Inc. | Lake Charles, LA 70605 | Oil & Gas Operator | Apr 2025 |
| 18 | Arben Oil, Inc. | Coleman, TX 76834 | Oil & Gas Operator | May 2026 |
| 19 | Arcadian Mineral Development | Brownwood, TX 76801 | Oil & Gas Operator | Dec 2013 |
| 20 | Arcadian Mineral Development,LLC | Brownwood, TX 76801 | Oil & Gas Operator | May 2026 |
| 21 | Argus Drilling, LLC | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 22 | Arnot Oil Company, LLC | Breckenridge, TX 76424 | Oil & Gas Operator | May 2026 |
| 23 | Arnot, W. G., Jr. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2017 |
| 24 | Arrowood Production Inc | Cross Plains, TX 76443 | Oil & Gas Operator | Mar 2008 |
| 25 | Ashbrook Oil Co. | Big Spring, TX 79721 | Oil & Gas Operator | Apr 2020 |
| 26 | Aztec Drilling & Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2015 |
| 27 | B&L Operating Co. | Price, TX 75687 | Oil & Gas Operator | May 2026 |
| 28 | Ball Producing Co. | Argyle, TX 76226 | Oil & Gas Operator | May 2026 |
| 29 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 30 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 31 | Bayou Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | May 2026 |
| 32 | BC Exploration, LLC | Dallas, TX 75201 | Gas Operator | May 2026 |
| 33 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | May 2026 |
| 34 | Bee-Jay Energy | Whiteface, TX 79379 | Oil & Gas Operator | Nov 1993 |
| 35 | Bee-Jay Petro, Inc. | Levelland, TX 79336 | Oil & Gas Operator | Jun 2024 |
| 36 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 37 | Beta Oil Corporation | San Antonio, TX 78232 | Oil & Gas Operator | May 2026 |
| 38 | BGM Production, LLC | Borger, TX 79008 | Oil & Gas Operator | May 2026 |
| 39 | Big Iron Excavation, L.L.C. | Blanket, TX 76432 | Oil Operator | Jan 2022 |
| 40 | Big State Industries, Inc. | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 41 | Big Tio, Inc. | Coleman, TX 76834 | Oil & Gas Operator | May 2026 |
| 42 | Blackwater Oil & Gas Corporation | Colleyville, TX 76034 | Oil & Gas Operator | May 2018 |
| 43 | Blue Diamond Mountain, LLC | Marble Falls, TX 78654 | Oil Operator | May 2026 |
| 44 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | May 2026 |
| 45 | Blue Wing Energy, Inc. | Portland, TX 78374 | Oil & Gas Operator | May 2026 |
| 46 | BMB Oil Production | Coleman, TX 76834 | Oil & Gas Operator | Feb 2007 |
| 47 | Bob Hughes Oil Company, LLC | San Angelo, TX 76901 | Oil & Gas Operator | May 2026 |
| 48 | BP Exploration | Abilene, TX 79604 | Oil & Gas Operator | Aug 2003 |
| 49 | Bpa Oilfield Services | Coleman, TX 76834 | Oil & Gas Operator | May 2026 |
| 50 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 51 | Brecca Oil & Gas Operators, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Mar 2003 |
| 52 | Brenda Oil And Gas Company | Pleasant PLNS, AR 72568 | Oil & Gas Operator | May 2006 |
| 53 | Brittany Drilling Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2000 |
| 54 | Broadway Petroleum Company, LLC | New York, NY 10152 | Oil Operator | May 2026 |
| 55 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 56 | Brown Industrial Gas, Inc. | Tulsa, OK 74103 | Gas Operator | Sep 2013 |
| 57 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 58 | Bullet Development, LLC | Abilene, TX 79601 | Oil & Gas Operator | May 2026 |
| 59 | Bussey, Joe F. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 60 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | May 2026 |
| 61 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |
| 62 | C & C Petroleum Management, LLC | Abilene, TX 79601 | Oil & Gas Operator | May 2026 |
| 63 | C & L Operating, Inc. | Valera, TX 76884 | Oil & Gas Operator | May 2026 |
| 64 | C O G Company | Bangs, TX 76823 | Oil & Gas Operator | May 2026 |
| 65 | Caddo Operating Inc. | Marshall, TX 75671 | Oil & Gas Operator | May 2026 |
| 66 | Candleridge Oil, Inc. | Fort Worth, TX 76109 | Oil & Gas Operator | Jun 2003 |
| 67 | Cedar Ridge Energy, Inc. | Coleman, TX 76834 | Oil & Gas Operator | May 2026 |
| 68 | Cei Operating LLC | Katy, TX 77449 | Oil & Gas Operator | May 2026 |
| 69 | Central Basin Oil Inv. Inc. | Southlake, TX 76092 | Oil & Gas Operator | May 2026 |
| 70 | Centurion Operating Corporation | Rockwall, TX 75087 | Oil & Gas Operator | May 2026 |
| 71 | Certified Petroleum Inc. | Mineral Wells, TX 76067 | Oil & Gas Operator | May 2006 |
| 72 | Chambers, R. H. | Abilene, TX 79606 | Oil & Gas Operator | Apr 2006 |
| 73 | Chambers, R. H. LLC | Abilene, TX 79606 | Oil & Gas Operator | Dec 2025 |
| 74 | Chancellor, Earl Sales Co., Inc. | Sweetwater, TX 79556 | Oil & Gas Operator | May 2026 |
| 75 | Chapman Oil Company | Midland, TX 79702 | Oil & Gas Operator | Mar 2026 |
| 76 | Cherokee Production Corp. | Greenville, TX 75401 | Oil & Gas Operator | May 2026 |
| 77 | Christian Energy, Inc. | Mandeville, LA 70470 | Oil & Gas Operator | Mar 2008 |
| 78 | Circle D Oil & Gas, Inc. | Brownwood, TX 76801 | Oil & Gas Operator | May 2026 |
| 79 | CK5 Services LLC | Zephyr, TX 76890 | Oil & Gas Operator | Sep 2025 |
| 80 | Clark, B. C. | Cross Plains, TX 76443 | Oil Operator | Dec 2007 |
| 81 | Coastal Oil & Gas Corp | Houston, TX 77252 | Oil & Gas Operator | Dec 2009 |
| 82 | Coleman & Johnson Oil Company | Brownwood, TX 76801 | Oil & Gas Operator | May 2026 |
| 83 | Coleman County Project | Coleman, TX 76834 | Oil & Gas Operator | Oct 2012 |
| 84 | Concho Oilfield Serv & Oper Co. | Eden, TX 76837 | Oil & Gas Operator | May 2026 |
| 85 | Connaway Oil & Gas Co. | Brookesmith, TX 76827 | Oil & Gas Operator | Feb 2016 |
| 86 | Conner-Marrs Company | Tulsa, OK 74105 | Oil & Gas Operator | May 2026 |
| 87 | Conquistador Petroleum,Inc. | Coleman, TX 76834 | Oil & Gas Operator | May 2026 |
| 88 | Copper Ridge Resources LLC | Midland, TX 79710 | Oil Operator | Feb 2025 |
| 89 | Couch Oil & Gas, Inc. | Dallas, TX 75229 | Oil & Gas Operator | May 2026 |
| 90 | Couch, Gilbert | Kilgore, TX 75663 | Oil & Gas Operator | May 2026 |
| 91 | Cpmak Investments, Inc. | Cross Plains, TX 76443 | Oil Operator | May 2026 |
| 92 | Creek Energy, Inc. | Brownwood, TX 76804 | Oil & Gas Operator | May 2026 |
| 93 | Crimson Energy Company, LC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2004 |
| 94 | Cross Cut Petroleum, LLC | Abilene, TX 79602 | Oil & Gas Operator | May 2026 |
| 95 | Crossbow Resources, LLC | Graham, TX 76450 | Oil & Gas Operator | May 2026 |
| 96 | Crosstex Services, L.L.C. | Tuscola, TX 79562 | Oil Operator | May 2026 |
| 97 | CRT'S, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Aug 2008 |
| 98 | CWC Oil & Gas, LLC | Abilene, TX 79608 | Oil & Gas Operator | May 2026 |
| 99 | CXL Energy LLC | Canada, 00100 | Oil & Gas Operator | May 2026 |
| 100 | D & L Operating Co. | Bangs, TX 76823 | Oil & Gas Operator | Nov 2022 |