| 1 | 1836 Energy LLC | El Campo, TX 77437 | Oil Operator | Feb 2026 |
| 2 | 2MC Consulting LLC | San Angelo, TX 76901 | Oil 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 | 4-J Oil Co. | Ryan, OK 73565 | Oil & Gas Operator | Mar 2009 |
| 7 | 5 G Resources, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 8 | 77 Oil Properties, Inc. | Wichita Falls, TX 76307 | Gas Operator | Mar 2002 |
| 9 | A.D. Operating | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 10 | Ada Exploration | Olney, TX 76374 | Oil & Gas Operator | Feb 2026 |
| 11 | Afe Oil & Gas Consultants | Addison, TX 75001 | Gas Operator | Jan 2003 |
| 12 | Akers & Fultz, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jun 2003 |
| 13 | Akers, B. F. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 14 | Akins Oil Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 15 | Alcorn, Jerry D. | Grand Prairie, TX 75050 | Oil & Gas Operator | Feb 2026 |
| 16 | Allar Co., The | Graham, TX 76450 | Oil & Gas Operator | Dec 2004 |
| 17 | Allied Energy Operating, LLC | McKinney, TX 75071 | Oil Operator | Feb 2026 |
| 18 | Alpine Petroleum | Abilene, TX 79608 | Oil & Gas Operator | Jul 2018 |
| 19 | Altman Energy, Inc. | Tulsa, OK 74114 | Oil & Gas Operator | Feb 2026 |
| 20 | Amen Oil LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 21 | American Eagle Operating LLC | Gainesville, TX 76240 | Oil Operator | Feb 2026 |
| 22 | Ameritech Oil & Gas Corporation | Dallas, TX 75248 | Oil & Gas Operator | May 1996 |
| 23 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Feb 2026 |
| 24 | Anadarko Minerals Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Dec 2025 |
| 25 | Anchor Petroleum, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Jan 1996 |
| 26 | Anco Account | Wichita Falls, TX 76301 | Oil & Gas Operator | Oct 1995 |
| 27 | Anderson, Carl T. | Wichita Falls, TX 76301 | Oil & Gas Operator | Feb 2014 |
| 28 | Anderson, E D | Cisco, TX 76437 | Oil & Gas Operator | Nov 2009 |
| 29 | Andrew, Robert Oneal | Olney, TX 76374 | Oil & Gas Operator | Sep 1998 |
| 30 | Andrews, B. C. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 31 | Antle Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 32 | Antle, E. | Graham, TX 76450 | Oil & Gas Operator | Oct 1994 |
| 33 | Aogp, LLC | Turtle Lake, WI 54889 | Oil & Gas Operator | Sep 2019 |
| 34 | Arch Petroleum Inc. | Houston, TX 77252 | Oil & Gas Operator | Mar 2008 |
| 35 | Argosy | Carrollton, TX 75010 | Oil & Gas Operator | Aug 2003 |
| 36 | Armor Petroleum, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 37 | Arnot, W. G., Jr. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2017 |
| 38 | Arrowhead Exploration Company | Olney, TX 76374 | Oil Operator | Dec 1995 |
| 39 | Arrowhead Productions, LP | Fort Worth, TX 76109 | Oil & Gas Operator | Feb 2026 |
| 40 | Aruba Petroleum, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Nov 2025 |
| 41 | Ashtola Exploration Company,Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Feb 2026 |
| 42 | Aspen Operating Company LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Feb 2026 |
| 43 | Associated Operating & Explor. | Dallas, TX 75243 | Oil & Gas Operator | Feb 2026 |
| 44 | Astin Corp. | Dallas, TX 75229 | Oil & Gas Operator | Sep 1994 |
| 45 | Atwell, David L. | Duncan, OK 73533 | Oil & Gas Operator | Jul 2003 |
| 46 | Augustus Oil And Gas Corporation | Austin, TX 78731 | Oil & Gas Operator | Feb 2026 |
| 47 | Aurora Exploration & Prod Co | Whitesboro, TX 76273 | Oil Operator | Feb 2026 |
| 48 | Ausanka Oil Operations | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1995 |
| 49 | Austin Energy Operations, Inc. | Corpus Chrsti, TX 78410 | Oil & Gas Operator | Feb 2026 |
| 50 | Avad Operating, LLC | Dallas, TX 75201 | Oil & Gas Operator | Feb 2026 |
| 51 | Axis Energy Corporation | Roswell, NM 88202 | Oil & Gas Operator | Feb 2026 |
| 52 | Ayres Oil, Inc. | Holliday, TX 76366 | Oil & Gas Operator | Aug 2003 |
| 53 | Aztec Drilling & Operating, LLC | Houston, TX 77056 | Oil & Gas Operator | Sep 2015 |
| 54 | B & G Oil | Graham, TX 76450 | Oil & Gas Operator | Mar 2015 |
| 55 | B & M Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Dec 2011 |
| 56 | B & N | Newcastle, TX 76372 | Oil & Gas Operator | Oct 1995 |
| 57 | B.E.G. Production | Iowa Park, TX 76367 | Oil & Gas Operator | Feb 2026 |
| 58 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 59 | Baldwin, C. R. Jr. | South Bend, TX 76481 | Oil & Gas Operator | Feb 2000 |
| 60 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 61 | Barbee, R.L. Operating, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Feb 2026 |
| 62 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 63 | Barnett, G. | Graham, TX 76450 | Oil Operator | Feb 2026 |
| 64 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Feb 2026 |
| 65 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Feb 2026 |
| 66 | BB & D Exploration, Inc. | Graham, TX 76450 | Oil & Gas Operator | Jan 2009 |
| 67 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 68 | Beach Oil & Gas, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Feb 2026 |
| 69 | Bearco Operating Co., Inc. | Olney, TX 76374 | Oil & Gas Operator | May 2019 |
| 70 | Beeson Energy, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Feb 2026 |
| 71 | Beisch & Hanna | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 72 | Beisch, Rusty | Windthorst, TX 76389 | Oil & Gas Operator | Feb 2026 |
| 73 | Bellah & Mathiews | Woodson, TX 76491 | Oil & Gas Operator | Feb 2026 |
| 74 | Ben-Co Operating Co., LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 75 | Benco Operating, Inc. | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 76 | Bendorf Services & Supply Co | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 77 | Bendorf, Otto Trust | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2000 |
| 78 | Bennett Resources, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 79 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 80 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2026 |
| 81 | Beren Corporation | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 82 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 83 | Berexco LLC | Wichita, KS 67206 | Oil & Gas Operator | Feb 2026 |
| 84 | Best Petroleum Explorations,Inc. | Jacksboro, TX 76458 | Oil & Gas Operator | Feb 2026 |
| 85 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 86 | Betwell Oil & Gas Company | Hialeah, FL 33002 | Oil & Gas Operator | Feb 2026 |
| 87 | Big Mountain Operating LLC | Decatur, TX 76234 | Oil & Gas Operator | Feb 2026 |
| 88 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2026 |
| 89 | Big W Oil Company | Graham, TX 76450 | Oil & Gas Operator | May 2017 |
| 90 | Birge Oil Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Jun 1995 |
| 91 | Bitz, M. J. Company | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 2003 |
| 92 | Bivins, Orville J. Jr. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2004 |
| 93 | BJ Operating, Inc. | Menard, TX 76859 | Oil & Gas Operator | Feb 2026 |
| 94 | Black Jack Services, L.L.C. | Bastrop, TX 78602 | Oil & Gas Operator | Feb 2026 |
| 95 | Black Pearl Operating Comp., LLC | Houston, TX 77057 | Oil Operator | Feb 2026 |
| 96 | Black Star Oil Company | Plano, TX 75094 | Oil & Gas Operator | Feb 2026 |
| 97 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 98 | Blakenergy Operating, LLC | Spring, TX 77386 | Oil & Gas Operator | Feb 2026 |
| 99 | Blevins Production LLC | Jacksboro, TX 76458 | Oil Operator | Feb 2026 |
| 100 | Bluebonnet Land & Cattle Co. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |