| 1 | 2 S Operating | Iowa Park, TX 76367 | Oil Operator | Sep 2018 |
| 2 | 2 T Production | Bowie, TX 76230 | Oil & Gas Operator | Feb 2026 |
| 3 | 3-C | Olney, TX 76374 | Oil & Gas Operator | Mar 2008 |
| 4 | 3-R Production, Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 5 | 3-T Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 6 | 3HP, Inc. | Brownwood, TX 76804 | Oil & Gas Operator | May 2016 |
| 7 | 4-J Oil Co. | Ryan, OK 73565 | Oil & Gas Operator | Mar 2009 |
| 8 | 4J Oil Co. LLC | Ryan, OK 73565 | Oil Operator | Feb 2026 |
| 9 | 5 G Resources, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 10 | A & B Minerals | Scotland, TX 76379 | Oil & Gas Operator | Sep 2020 |
| 11 | A A Production Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 1998 |
| 12 | Abb Oil Co., Inc. | Wichita Falls, TX 76310 | Oil & Gas Operator | Feb 2026 |
| 13 | Acadia Oil, LLC | Wichita Falls, TX 76310 | Oil Operator | Feb 2026 |
| 14 | Ada Exploration | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 15 | Adair Resources Inc. | Ennis, TX 75120 | Oil & Gas Operator | Apr 2018 |
| 16 | Addax Operating, LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 17 | Addison - Graves, L.L.C. | Archer City, TX 76351 | Oil Operator | Feb 2026 |
| 18 | Addison, Kenneth | Archer City, TX 76351 | Oil & Gas Operator | Dec 2017 |
| 19 | Akea, Inc. | Holliday, TX 76366 | Oil Operator | Feb 2026 |
| 20 | Akins Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 21 | Alamosa Operating Company | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 22 | Alco Oil & Gas Co. LLC | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2026 |
| 23 | Alcorn, Jerry D. | Grand Prairie, TX 75050 | Oil & Gas Operator | Feb 2026 |
| 24 | Alexander, Stanley | Electra, TX 76360 | Oil & Gas Operator | May 2016 |
| 25 | Alpha Exploration Co. | Wichita Falls, TX 76309 | Oil & Gas Operator | Oct 1998 |
| 26 | Altex Resources, Inc. | Carney, OK 74832 | Oil & Gas Operator | Mar 2015 |
| 27 | Amen Oil LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 28 | American Eagle Operating LLC | Gainesville, TX 76240 | Oil Operator | Feb 2026 |
| 29 | American Petroleum Corp | Addison, TX 75001 | Oil & Gas Operator | Feb 2026 |
| 30 | American West Resources, Inc | Fort Worth, TX 76161 | Oil & Gas Operator | Feb 2026 |
| 31 | Anchor Petroleum, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Jan 1996 |
| 32 | Anderson Oil & Gas Account | Wichita Falls, TX 76301 | Oil & Gas Operator | Nov 2013 |
| 33 | Anderson, Carl T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2014 |
| 34 | Andrews, B. C. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 35 | Antle Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 36 | Apache Production Company | Holliday, TX 76366 | Oil & Gas Operator | Feb 2026 |
| 37 | Archer Drilling & Prod. Co. | Archer City, TX 76351 | Oil & Gas Operator | Nov 2002 |
| 38 | Arcooil Corp | San Antonio, TX 78205 | Oil & Gas Operator | Feb 2026 |
| 39 | Aries Operating, LP | Houston, TX 77042 | Oil & Gas Operator | Feb 2026 |
| 40 | Armour, Widd | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 41 | Arrowhead Exploration Company | Olney, TX 76374 | Oil Operator | Dec 1995 |
| 42 | Aruba Petroleum, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Nov 2025 |
| 43 | Associated Operating & Explor. | Dallas, TX 75243 | Oil & Gas Operator | Feb 2026 |
| 44 | Atlas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Feb 2026 |
| 45 | Atmos Pipeline - Texas | Dallas, TX 75240 | Oil & Gas Operator | Feb 2026 |
| 46 | Atoka Operating, Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Feb 2026 |
| 47 | Ausanka Oil Operations | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1995 |
| 48 | Austin Energy Operations, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Feb 2026 |
| 49 | Avad Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 50 | Axis Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Feb 2026 |
| 51 | Ayres, C. D. | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 52 | Ayres, Joe D. | Holliday, TX 76366 | Oil & Gas Operator | Dec 2004 |
| 53 | Aztec Energy, LLC | Wichita Falls, TX 76301 | Oil Operator | Feb 2026 |
| 54 | Aztec Oil & Gas Company "A" | Wichita Falls, TX 76309 | Oil & Gas Operator | Sep 2010 |
| 55 | B & M Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Dec 2011 |
| 56 | B & V Rocking S, LLC | Holliday, TX 76366 | Oil Operator | Feb 2026 |
| 57 | B And M Production | Burkburnett, TX 76354 | Oil Operator | Feb 2026 |
| 58 | B.E.G. Production | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 59 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 60 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 61 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Nov 2025 |
| 62 | Bar H Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1997 |
| 63 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 64 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 65 | Barnett Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 1999 |
| 66 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Feb 2026 |
| 67 | Barrow-Shaver Resources Co. | Tyler, TX 75703 | Oil & Gas Operator | Feb 2026 |
| 68 | Baytide Petr. Inc. | Tulsa, OK 74103 | Oil & Gas Operator | Dec 1997 |
| 69 | Beeson Energy, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Feb 2026 |
| 70 | Beisch, Rusty | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 71 | Bennett Production Corporation | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 72 | Benson Mineral Group, Inc. | Denver, CO 80202 | Oil & Gas Operator | Apr 2022 |
| 73 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 74 | Berry, Gus | Okmulgee, OK 74447 | Oil & Gas Operator | Feb 1996 |
| 75 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 76 | Betwell Oil & Gas Company | Hialeah, FL 33002 | Oil & Gas Operator | Feb 2026 |
| 77 | BHB Operating Inc. | Fort Worth, TX 76137 | Oil & Gas Operator | Feb 2026 |
| 78 | Biffle, Jimmy Jack | Muenster, TX 76252 | Oil & Gas Operator | Feb 2017 |
| 79 | Big Rock Oil LLC | Frisco, TX 75034 | Oil Operator | Feb 2026 |
| 80 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 81 | Big Sandy Oil Inc. | Manchaca, TX 78652 | Oil & Gas Operator | Aug 2003 |
| 82 | Birge Oil Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Jun 1995 |
| 83 | Bitter Creek LLC | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 84 | BKJ Oil, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 85 | Black Pearl Operating Comp., LLC | Houston, TX 77057 | Oil Operator | Feb 2026 |
| 86 | Blackflat Oil Company LLC | Lubbock, TX 79424 | Oil Operator | Feb 2026 |
| 87 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 88 | Blakenergy Operating, LLC | Spring, TX 77386 | Oil & Gas Operator | Feb 2026 |
| 89 | Bledsco, Inc. | Holliday, TX 76366 | Oil Operator | Feb 2010 |
| 90 | BLS Production Co., Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 91 | Blue Grass Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Dec 2025 |
| 92 | Bluebonnet Land & Cattle Co. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 93 | BM Oil Company, LLC | Olney, TX 76374 | Oil Operator | Nov 2021 |
| 94 | BMBD Enterprises, LLC | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 95 | Boaz Energy, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2014 |
| 96 | Bonfire Operating LLC | Cresson, TX 76035 | Oil & Gas Operator | Feb 2026 |
| 97 | Boone Ranch 8, Inc. | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 98 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 99 | Borders, Delbert L. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2019 |
| 100 | Bowles Energy, Inc. | Longview, TX 75606 | Oil & Gas Operator | Feb 2026 |