| 1 | 2 W Petroleum | Brownwood, TX 76804 | Oil & Gas Operator | Mar 2025 |
| 2 | 20TH Century Pipe & Equip.Co.Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 3 | 3 S Production, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Mar 2025 |
| 4 | 3-L Drilling | Abilene, TX 79605 | Oil & Gas Operator | Mar 2025 |
| 5 | 3-M Energy Corporation | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2017 |
| 6 | 3-T Exploration, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 7 | 4-M Operating Company | Abilene, TX 79601 | Oil & Gas Operator | Jun 2015 |
| 8 | 5 Schkade | Albany, TX 76430 | Oil Operator | Mar 2025 |
| 9 | 5L Properties | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 2002 |
| 10 | 5L Properties, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Mar 2025 |
| 11 | 86-Oil & Gas | Hamlin, TX 79520 | Oil & Gas Operator | Oct 2003 |
| 12 | A.D.S. Resources, Inc. | Lubbock, TX 79413 | Oil & Gas Operator | Jul 2008 |
| 13 | A.E.N. Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Jan 1996 |
| 14 | Abbott, John Operating | Abilene, TX 79605 | Oil & Gas Operator | Mar 2025 |
| 15 | Aberdeen Petroleum (USA) Inc. | Abilene, TX 79608 | Oil & Gas Operator | Sep 1994 |
| 16 | Abilene American Energy, LLC | Abilene, TX 79602 | Oil Operator | Mar 2025 |
| 17 | Ableready, Inc. | Houston, TX 77269 | Oil & Gas Operator | Mar 2025 |
| 18 | Abtex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2006 |
| 19 | Abx Oil & Gas, Inc. | Dallas, TX 75240 | Oil & Gas Operator | Mar 2025 |
| 20 | Adams Branch Exploration Company | Abilene, TX 79608 | Oil & Gas Operator | Jul 2002 |
| 21 | Adkins, R. L. Corp. | Lubbock, TX 79408 | Oil & Gas Operator | Jun 2013 |
| 22 | Aeon Operating, Inc. | Fate, TX 75132 | Oil & Gas Operator | Mar 2025 |
| 23 | Alaron Energy, Inc. | Irving, TX 75038 | Oil & Gas Operator | Mar 2025 |
| 24 | Albany Well Service | Albany, TX 76430 | Oil & Gas Operator | Mar 2025 |
| 25 | Albert, David Oil & Gas | Dallas, TX 75240 | Oil & Gas Operator | Mar 2008 |
| 26 | Albert-Bishop Exploration Co Inc | Dallas, TX 75240 | Oil & Gas Operator | Feb 2007 |
| 27 | Alexander Energy Corporation | Dallas, TX 75206 | Oil & Gas Operator | Apr 2015 |
| 28 | Alexander Resources, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2025 |
| 29 | Allegiance Operating Inc. | Wichita Falls, TX 76307 | Oil Operator | Mar 2025 |
| 30 | Allegro Investments, Inc. | Victoria, TX 77903 | Oil & Gas Operator | Nov 2020 |
| 31 | Allegro Operating, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 32 | Alpha Energy | Anson, TX 79501 | Oil & Gas Operator | Oct 2016 |
| 33 | Alpine Petroleum | Abilene, TX 79608 | Oil & Gas Operator | Jul 2018 |
| 34 | Ambassador Oil Company, LLC | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 35 | Amble Petroleum Co., Inc. | Tuscola, TX 79562 | Oil Operator | Mar 2025 |
| 36 | Amen Oil LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 37 | Amerac Energy Corporation | Tulsa, OK 74136 | Oil & Gas Operator | Jun 2013 |
| 38 | American Eagle Operating, Inc. | Spring, TX 77386 | Oil Operator | Aug 2010 |
| 39 | American Energy | Abilene, TX 79604 | Oil & Gas Operator | Jul 2004 |
| 40 | Americo Oil Company | Oklahoma City, OK 73154 | Oil & Gas Operator | Feb 2012 |
| 41 | Ampak Oil Company | Plano, TX 75074 | Oil & Gas Operator | Mar 2025 |
| 42 | Anadarko E&P Onshore LLC | Houston, TX 77046 | Oil & Gas Operator | Mar 2025 |
| 43 | Anadarko Minerals Inc | Oklahoma City, OK 73102 | Oil & Gas Operator | Jan 2025 |
| 44 | Anathema, Inc. | Abilene, TX 79601 | Oil & Gas Operator | Dec 1994 |
| 45 | Anderson, James K. Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2025 |
| 46 | Anderson, Roger W. Corp. | Clyde, TX 79510 | Oil & Gas Operator | Apr 2020 |
| 47 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Mar 2025 |
| 48 | Arabella Petroleum Company, LLC | Austin, TX 78701 | Oil & Gas Operator | Mar 2025 |
| 49 | Archer Petroleum | Frisco, TX 75034 | Oil & Gas Operator | Aug 2021 |
| 50 | Arledge & Young, Inc. | Weatherford, TX 76086 | Oil & Gas Operator | Feb 1999 |
| 51 | Armor Petroleum, Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Mar 2025 |
| 52 | Arnot, W. G., Jr. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2017 |
| 53 | Arriola Operating & Consltg Inc. | Dallas, TX 75248 | Oil Operator | Mar 2025 |
| 54 | Arrowhead Operating Inc. | Argyle, TX 76226 | Oil & Gas Operator | Mar 2025 |
| 55 | Ashtola Exploration Company,Inc. | Amarillo, TX 79105 | Oil & Gas Operator | Mar 2025 |
| 56 | Aspen Exploration, Inc. | Houston, TX 77002 | Oil & Gas Operator | Dec 2012 |
| 57 | Astin Corp. | Dallas, TX 75229 | Oil & Gas Operator | Sep 1994 |
| 58 | Athena Resources, Inc. | Dallas, TX 75248 | Oil & Gas Operator | Mar 2025 |
| 59 | Atlas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Mar 2025 |
| 60 | Atmos Pipeline - Texas | Dallas, TX 75240 | Oil & Gas Operator | Mar 2025 |
| 61 | Augusta Oil & Gas | Abilene, TX 79604 | Oil & Gas Operator | Nov 2002 |
| 62 | Augusta Oil & Gas Inc | Abilene, TX 79604 | Oil & Gas Operator | Dec 2015 |
| 63 | Ausanka Oil Operations | Wichita Falls, TX 76308 | Oil & Gas Operator | Jun 1995 |
| 64 | Avips Petroleum, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Jun 1996 |
| 65 | B & G Energy Corporation | Dallas, TX 75214 | Oil & Gas Operator | Mar 2025 |
| 66 | B P Operating Company | Abilene, TX 79604 | Oil & Gas Operator | Nov 2007 |
| 67 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 68 | B.R.H. Investments, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 1998 |
| 69 | Bam Production Company | Granbury, TX 76048 | Oil & Gas Operator | Aug 2003 |
| 70 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 71 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 72 | Barnett Energy, Inc. | The Colony, TX 75056 | Oil & Gas Operator | Mar 2025 |
| 73 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Mar 2025 |
| 74 | Bass Operating Co., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jul 1999 |
| 75 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 76 | Bayou Operating Company, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Mar 2025 |
| 77 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 78 | Beaird, R.A. Oil Operating Co. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2025 |
| 79 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | Mar 2025 |
| 80 | Beeda Oil Company | Merkel, TX 79536 | Oil & Gas Operator | Mar 2025 |
| 81 | Bell, Johnny Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2025 |
| 82 | Bell, O. M. | Merkel, TX 79536 | Oil & Gas Operator | Mar 2008 |
| 83 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 84 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Mar 2025 |
| 85 | Betwell Oil & Gas Company | Hialeah, FL 33002 | Oil & Gas Operator | Mar 2025 |
| 86 | BFP Oil Company | Frisco, TX 75034 | Oil & Gas Operator | Mar 2025 |
| 87 | Big State Industries, Inc. | Houston, TX 77010 | Oil & Gas Operator | Apr 2024 |
| 88 | Bilbo Operating | Abilene, TX 79603 | Oil Operator | Mar 2004 |
| 89 | Bitter Creek Petroleum Co. | Knox City, TX 79529 | Oil & Gas Operator | Mar 2025 |
| 90 | Black Bandana LLC | Santo, TX 76472 | Oil & Gas Operator | Mar 2025 |
| 91 | Blue Oil, Inc. | Burnet, TX 78611 | Oil & Gas Operator | Mar 2025 |
| 92 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2025 |
| 93 | Blue River Inc. | Abilene, TX 79608 | Oil Operator | Mar 2025 |
| 94 | Bluff Creek Petroleum, LLC | Abilene, TX 79603 | Oil & Gas Operator | Mar 2025 |
| 95 | Bo Dunagin Operating, LLC | Merkel, TX 79536 | Oil Operator | Mar 2019 |
| 96 | Boaz Energy, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2014 |
| 97 | Bob & Ted'S Operating | Lewisville, TX 75067 | Oil & Gas Operator | Apr 1993 |
| 98 | Bomar Oil & Gas, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Dec 2020 |
| 99 | Boondocks Solutions LLC | Tomball, TX 77375 | Oil & Gas Operator | Mar 2025 |
| 100 | Bootstrap Exploration, Inc. | Aledo, TX 76008 | Oil & Gas Operator | Jun 2021 |