| 1 | 3-T Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 2 | 375 Energy, Inc. | Houston, TX 77002 | Oil & Gas Operator | Jul 2013 |
| 3 | 77 Oil Properties, Inc. | Wichita Falls, TX 76307 | Gas Operator | Mar 2002 |
| 4 | Abernathy Auto, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 5 | Adams, Lynn V. | Nocona, TX 76255 | Oil & Gas Operator | Mar 2025 |
| 6 | Aec Oil & Gas USA Inc | Denver, CO 80202 | Oil & Gas Operator | May 2004 |
| 7 | Aeternum Energy, LLC | Nederland, TX 77627 | Oil & Gas Operator | Mar 2025 |
| 8 | Akins Oil Company | Wichita Falls, TX 76302 | Oil & Gas Operator | Mar 2025 |
| 9 | Allar Co., The | Graham, TX 76450 | Oil & Gas Operator | Dec 2004 |
| 10 | Allen, C. L. (Doie) | Wichita Falls, TX 76309 | Oil & Gas Operator | Mar 2025 |
| 11 | Alpha Exploration Co. | Wichita Falls, TX 76309 | Oil & Gas Operator | Oct 1998 |
| 12 | Altex Resources, Inc. | Carney, OK 74832 | Oil & Gas Operator | Mar 2015 |
| 13 | Amen Oil LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 14 | American Operating Company | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2003 |
| 15 | American West Resources, Inc | Fort Worth, TX 76161 | Oil & Gas Operator | Mar 2025 |
| 16 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Jan 2025 |
| 17 | Anschutz Exploration Corporation | Denver, CO 80202 | Oil & Gas Operator | Mar 2025 |
| 18 | Antle Operating, Inc. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 19 | Aog, Inc. | Norman, OK 73070 | Oil & Gas Operator | Nov 2014 |
| 20 | Apex Operating & Equip. Co. | Bowie, TX 76230 | Oil & Gas Operator | Nov 2003 |
| 21 | Archer Reef Oil Co. | Bellevue, TX 76228 | Oil & Gas Operator | Mar 2025 |
| 22 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
| 23 | Aries Operating LP | Houston, TX 77042 | Oil & Gas Operator | Mar 2025 |
| 24 | Arkoma Prod Co Of Texas, Inc. | Dallas, TX 75225 | Oil Operator | May 2004 |
| 25 | Arrow Oil & Gas, LLC | Norman, OK 73070 | Oil & Gas Operator | Mar 2025 |
| 26 | Arrowhead Productions, LP | Fort Worth, TX 76109 | Oil & Gas Operator | Mar 2025 |
| 27 | Aruba Petroleum, Inc. | Dallas, TX 75379 | Oil & Gas Operator | Dec 2024 |
| 28 | Aspen Operating Company LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Mar 2025 |
| 29 | Astin Corp. | Dallas, TX 75229 | Oil & Gas Operator | Sep 1994 |
| 30 | Atkinson, Jim | Nocona, TX 76255 | Oil & Gas Operator | Mar 2025 |
| 31 | Atlas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Mar 2025 |
| 32 | Atoka Operating, Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2025 |
| 33 | August Oil | Plano, TX 75093 | Oil & Gas Operator | Aug 2003 |
| 34 | Azteca Petroleum, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | Mar 2025 |
| 35 | B-K Operating | Whitesboro, TX 76273 | Oil & Gas Operator | Oct 1997 |
| 36 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 37 | Bah-Pepper Operating, LLC | Nocona, TX 76255 | Oil & Gas Operator | Mar 2025 |
| 38 | Bandera Exploration Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2017 |
| 39 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 40 | Bar L Producers | Fritch, TX 79036 | Oil & Gas Operator | Mar 2025 |
| 41 | Barnes, Jerry B. | Gainesville, TX 76241 | Oil & Gas Operator | Oct 2006 |
| 42 | Barnes, Larry Petroleum, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Jul 1996 |
| 43 | Barnett Energy, Inc. | The Colony, TX 75056 | Oil & Gas Operator | Mar 2025 |
| 44 | Bartex Energy Corporation | Irving, TX 75060 | Oil & Gas Operator | Apr 1994 |
| 45 | Beard Oil Company | Oklahoma City, OK 73102 | Oil & Gas Operator | Aug 2013 |
| 46 | Beaver Oil & Gas Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Mar 2025 |
| 47 | Bedrock Production, LLC | Houston, TX 77002 | Oil & Gas Operator | Mar 2025 |
| 48 | Beeson Energy, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Mar 2025 |
| 49 | Bend Petroleum Corp | Muenster, TX 76252 | Oil & Gas Operator | Nov 2023 |
| 50 | Bennett Production Corporation | Bowie, TX 76230 | Oil & Gas Operator | Apr 2024 |
| 51 | Bentley Oil & Gas Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 52 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 53 | Biffle, Jimmy Jack | Muenster, TX 76252 | Oil & Gas Operator | Feb 2017 |
| 54 | Big Country Pipe & Supply, Inc. | Saint Jo, TX 76265 | Oil Operator | May 2023 |
| 55 | Big Mountain Operating LLC | Decatur, TX 76234 | Oil & Gas Operator | Nov 2021 |
| 56 | Big Rock Oil LLC | Frisco, TX 75034 | Oil Operator | Mar 2025 |
| 57 | Birge Oil Co. | Wichita Falls, TX 76302 | Oil & Gas Operator | Jun 1995 |
| 58 | Bivins, Orville J. Jr. | Jacksboro, TX 76458 | Oil & Gas Operator | Sep 2004 |
| 59 | BKV North Texas, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | Mar 2025 |
| 60 | Black Bandana LLC | Santo, TX 76472 | Oil & Gas Operator | Mar 2025 |
| 61 | Blakemore, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Dec 2012 |
| 62 | Bonita Hydrocarbons Company | Dallas, TX 75229 | Oil & Gas Operator | Jun 2008 |
| 63 | Bootstrap Exploration, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Jun 2021 |
| 64 | Borderline Operating Corp. | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 65 | Borders, Delbert L. Inc. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2019 |
| 66 | Bowerman Investments Inc. | Arlington, TX 76003 | Oil & Gas Operator | Mar 2025 |
| 67 | Boyd, Clyde Oil & Gas | Graham, TX 76450 | Oil & Gas Operator | Jan 2004 |
| 68 | Bra-De Oil & Gas Inc. | Montague, TX 76251 | Oil & Gas Operator | Jun 2016 |
| 69 | Bra-De Oil & Gas Operating, LLC | Montague, TX 76251 | Oil & Gas Operator | Mar 2025 |
| 70 | Bra-De Oil Co. | Bowie, TX 76230 | Oil & Gas Operator | Jun 2005 |
| 71 | Braden Exploration, LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Nov 2011 |
| 72 | Brahman Operating LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 73 | Braman, D. H., Jr. | Victoria, TX 77901 | Oil & Gas Operator | Dec 2008 |
| 74 | Brammer Petroleum, Inc. | Gainesville, TX 76241 | Oil & Gas Operator | Mar 2025 |
| 75 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 76 | Bravo Natural Resources, Inc | Oklahoma City, OK 73154 | Oil & Gas Operator | Jun 2009 |
| 77 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Dec 2024 |
| 78 | Breeze Oil, LLC | Nocona, TX 76255 | Oil Operator | Mar 2025 |
| 79 | Breeze, James R. | Nocona, TX 76255 | Oil & Gas Operator | Nov 2017 |
| 80 | Briar Energy Corporation | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 81 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2025 |
| 82 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 83 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 84 | Britton Operating, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Mar 2025 |
| 85 | Bruce & Creighton | Graham, TX 76450 | Oil & Gas Operator | Apr 2000 |
| 86 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 87 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 88 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Mar 2025 |
| 89 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2025 |
| 90 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |
| 91 | Burns Operating LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2009 |
| 92 | Burns, P. C. Oil Producers Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2000 |
| 93 | Cago, Inc. | College Sta, TX 77845 | Oil & Gas Operator | Mar 2025 |
| 94 | Canan Mowrey Operating, LLC | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 95 | Canan Operating, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 96 | Carburante Exploration Co, LTD. | Granbury, TX 76048 | Oil & Gas Operator | Mar 2025 |
| 97 | Caribbean Energy, L.L.C. | Cotulla, TX 78014 | Oil & Gas Operator | Nov 2019 |
| 98 | Carter Energy Corporation | Duncanville, TX 75138 | Oil & Gas Operator | Sep 2010 |
| 99 | Cary Oil & Gas, Inc | Decatur, TX 76234 | Oil & Gas Operator | Mar 2025 |
| 100 | Caswell Bros. Oil Co. | Bowie, TX 76230 | Oil & Gas Operator | Mar 2025 |