| 1 | 3 Amigos Oil Co. | Odessa, TX 79766 | Oil & Gas Operator | Apr 2026 |
| 2 | 3 S Production, Inc. | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 3 | 3-D Oil & Gas | Winters, TX 79567 | Oil & Gas Operator | Apr 2026 |
| 4 | 3-L Drilling | Abilene, TX 79605 | Oil & Gas Operator | Apr 2026 |
| 5 | 3-M Energy Corporation | San Angelo, TX 76902 | Oil & Gas Operator | Jun 2017 |
| 6 | 4D Energy Co. | Sterling City, TX 76951 | Oil & Gas Operator | Feb 2007 |
| 7 | A - Z Operating LLC | Winters, TX 79567 | Oil Operator | Apr 2026 |
| 8 | A. P. B. Petro | Winters, TX 79567 | Oil & Gas Operator | Oct 2005 |
| 9 | A.A.F. Production Co., Inc. | Abilene, TX 79606 | Oil & Gas Operator | Dec 1997 |
| 10 | Abilene American Energy, LLC | Abilene, TX 79602 | Oil Operator | Apr 2026 |
| 11 | Abtex Energy, Inc. | Abilene, TX 79608 | Oil & Gas Operator | May 2006 |
| 12 | Activa Resources, LLC | Houston, TX 77269 | Oil & Gas Operator | Apr 2026 |
| 13 | Adams Branch Exploration Company | Abilene, TX 79608 | Oil & Gas Operator | Jul 2002 |
| 14 | Alaron Energy, Inc. | Irving, TX 75038 | Oil & Gas Operator | Apr 2026 |
| 15 | Alexander Resources, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2026 |
| 16 | All-Southwest Petroleum, Inc. | Lubbock, TX 79424 | Oil & Gas Operator | Oct 1997 |
| 17 | Allegro Investments, Inc. | Victoria, TX 77903 | Oil & Gas Operator | Nov 2020 |
| 18 | Allegro Operating, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Apr 2026 |
| 19 | Alpine Gas Company, LLC | Dallas, TX 75201 | Oil & Gas Operator | Oct 2006 |
| 20 | Alumni Oil LLC | Plano, TX 75024 | Oil Operator | Apr 2026 |
| 21 | American Cascade Energy, Inc. | Barker, TX 77413 | Oil & Gas Operator | Apr 2026 |
| 22 | Ampak Oil Company | Plano, TX 75074 | Oil & Gas Operator | Apr 2026 |
| 23 | Anadarko Ogc Company | Houston, TX 77251 | Oil & Gas Operator | Dec 1998 |
| 24 | Anderson, James K. Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2026 |
| 25 | Arben Oil, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Apr 2026 |
| 26 | Arcadian Mineral Development,LLC | Brownwood, TX 76801 | Oil & Gas Operator | Apr 2026 |
| 27 | Atapco | Houston, TX 77040 | Oil & Gas Operator | Feb 1999 |
| 28 | Atf Petroleum Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2026 |
| 29 | Atlantic Richfield Company | Houston, TX 77079 | Oil & Gas Operator | Dec 2016 |
| 30 | Atlas Operating LLC | Houston, TX 77056 | Oil & Gas Operator | Apr 2026 |
| 31 | Atmos Pipeline - Texas | Dallas, TX 75240 | Oil & Gas Operator | Apr 2026 |
| 32 | Austral Oil Company Incorporated | Sulphur, LA 70663 | Oil & Gas Operator | Mar 2008 |
| 33 | Avips Petroleum, Inc. | Abilene, TX 79605 | Oil & Gas Operator | Jun 1996 |
| 34 | Azul, Inc. | Buffalo Gap, TX 79508 | Oil & Gas Operator | Aug 1995 |
| 35 | B & B Oil, Inc. | Kerrville, TX 78028 | Oil & Gas Operator | Apr 2026 |
| 36 | B & G Energy Corporation | Dallas, TX 75214 | Oil & Gas Operator | Apr 2026 |
| 37 | B & W Southern Petroleum | The Woodlands, TX 77381 | Oil & Gas Operator | Aug 2009 |
| 38 | B J Oil Company | Corsicana, TX 75109 | Oil & Gas Operator | Apr 2026 |
| 39 | B.R.H. Investments, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 1998 |
| 40 | B.W.O.C., Inc. | Plano, TX 75026 | Oil & Gas Operator | Apr 2026 |
| 41 | Baker Operating, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Apr 2026 |
| 42 | Banks, R. C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2016 |
| 43 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 44 | Barnes Exploration Co. | Nashville, TN 37209 | Oil & Gas Operator | Feb 1995 |
| 45 | Baron Energy Inc. | San Marcos, TX 78666 | Oil & Gas Operator | Apr 2026 |
| 46 | Bayou Operating Company, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2026 |
| 47 | Beach Oil & Gas, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Apr 2026 |
| 48 | Beasley Well Service Inc. | Tuscola, TX 79562 | Oil Operator | Apr 2026 |
| 49 | Becker, Clyde M. | Ponca City, OK 74601 | Oil & Gas Operator | Oct 2009 |
| 50 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 51 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 52 | Berry Energy Companies | Abilene, TX 79608 | Oil & Gas Operator | Apr 2026 |
| 53 | Beta-Tex, An Oklahoma Corp. | Oklahoma City, OK 73157 | Oil & Gas Operator | Aug 2024 |
| 54 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 55 | Bevo Production Co. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 2014 |
| 56 | Bex, Inc. | Nashville, TN 37209 | Oil & Gas Operator | Aug 2007 |
| 57 | Big D Energy Company | New Braunfels, TX 78132 | Oil & Gas Operator | Apr 2026 |
| 58 | Big Tio, Inc. | Coleman, TX 76834 | Oil & Gas Operator | Apr 2026 |
| 59 | Bishop, E.J. | Winters, TX 79567 | Oil & Gas Operator | May 1997 |
| 60 | Bloomer & Associates, Inc. | Lago VIsta, TX 78645 | Oil & Gas Operator | Jul 2002 |
| 61 | Blue Ridge Oil & Gas Exp., Inc. | Belleville, MI 48111 | Gas Operator | Jul 1994 |
| 62 | Blue River Inc. | Abilene, TX 79608 | Oil Operator | Apr 2026 |
| 63 | BMB Oil Production | Coleman, TX 76834 | Oil & Gas Operator | Feb 2007 |
| 64 | BMW Services, LLC | Santa Anna, TX 76878 | Oil & Gas Operator | Apr 2026 |
| 65 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Apr 2026 |
| 66 | Boaz Energy, LLC | Midland, TX 79710 | Oil & Gas Operator | Mar 2014 |
| 67 | Bob Hughes Oil Company, LLC | San Angelo, TX 76901 | Oil & Gas Operator | Apr 2026 |
| 68 | Bommer Engineering Co. | San Antonio, TX 78260 | Oil & Gas Operator | Apr 2026 |
| 69 | Borden, Roland Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 2026 |
| 70 | Bowerman Oil & Gas, Inc. | Arlington, TX 76003 | Oil & Gas Operator | Apr 2026 |
| 71 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Apr 2026 |
| 72 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 73 | Brecca Oil & Gas Operators, Inc. | Abilene, TX 79602 | Oil & Gas Operator | Mar 2003 |
| 74 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 75 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 76 | Brightriver Energy Co | Katy, TX 77494 | Oil & Gas Operator | Apr 2026 |
| 77 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 78 | Brittany Drilling Co. | Abilene, TX 79604 | Oil & Gas Operator | Dec 2000 |
| 79 | Broadway Petroleum Company, LLC | New York, NY 10152 | Oil Operator | Apr 2026 |
| 80 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 81 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 82 | Burger, F.W. Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 83 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Apr 2026 |
| 84 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 85 | Burton, V.C. Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2016 |
| 86 | Bussey, Joe F. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 87 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Apr 2026 |
| 88 | Byrne Oil Company | Lubbock, TX 79464 | Oil & Gas Operator | Apr 2026 |
| 89 | C & A Enterprises | Ballinger, TX 76821 | Oil & Gas Operator | Apr 2026 |
| 90 | C S J, Inc. | Austin, TX 78716 | Oil & Gas Operator | Apr 2026 |
| 91 | Caddo Corporation | Austin, TX 78731 | Oil & Gas Operator | Apr 2026 |
| 92 | Cannon Operating Company LLC | Garland, TX 75043 | Oil Operator | Apr 2026 |
| 93 | Canyon Exploration Co. | Amarillo, TX 79105 | Oil & Gas Operator | Oct 2025 |
| 94 | Capataz Operating Inc | Midland, TX 79702 | Oil & Gas Operator | Sep 2020 |
| 95 | Capio Oil & Gas, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2015 |
| 96 | Caraway Operating Co. | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2026 |
| 97 | Carr Exploration Corp. | Dallas, TX 75225 | Oil & Gas Operator | Aug 2003 |
| 98 | CDJ Oil Co. | Albany, TX 76430 | Oil & Gas Operator | Jul 2025 |
| 99 | CDJ Oil Company, LLC | Albany, TX 76430 | Oil & Gas Operator | Apr 2026 |
| 100 | Cedar Oil Company | Midland, TX 79707 | Oil & Gas Operator | Apr 2026 |