| 1 | 14start LLC | Plano, TX 75093 | Oil Operator | Feb 2025 |
| 2 | 5H Oil Co., LLC | Dallas, TX 75225 | Oil & Gas Operator | Dec 2016 |
| 3 | 7S Oil & Gas, LLC | Midland, TX 79706 | Oil & Gas Operator | Dec 2019 |
| 4 | A A Production Inc. | Midland, TX 79701 | Oil & Gas Operator | Mar 1998 |
| 5 | Abel, M.D. Co. | Lampasas, TX 76550 | Oil & Gas Operator | Jun 2017 |
| 6 | Abraxas Petroleum Corporation | San Antonio, TX 78259 | Oil & Gas Operator | Feb 2025 |
| 7 | Abraxas Production Corporation | San Antonio, TX 78270 | Oil & Gas Operator | Sep 1999 |
| 8 | Ackerly Service Company, Inc. | Big Spring, TX 79721 | Oil & Gas Operator | Nov 1997 |
| 9 | Acoma Oil Corporation | Saint Paul, MN 55102 | Oil & Gas Operator | Feb 2025 |
| 10 | Adkins, R. L. Corp. | Lubbock, TX 79408 | Oil & Gas Operator | Jun 2013 |
| 11 | Aethon I LP | Dallas, TX 75206 | Oil & Gas Operator | Mar 2015 |
| 12 | Aladdin Energy, Inc. | Richardson, TX 75080 | Oil & Gas Operator | Feb 1999 |
| 13 | Allar Co., The | Graham, TX 76450 | Oil & Gas Operator | Dec 2004 |
| 14 | Alleder Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2025 |
| 15 | Allegro Operating, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2025 |
| 16 | Alta Energy Corporation | Midland, TX 79701 | Oil & Gas Operator | Apr 1995 |
| 17 | Amax Oil & Gas Inc | Fort Worth, TX 76107 | Oil & Gas Operator | Nov 2014 |
| 18 | Amerada Hess Corporation | Houston, TX 77252 | Oil & Gas Operator | Aug 2013 |
| 19 | American Exploration Company | Houston, TX 77010 | Oil & Gas Operator | Jan 2000 |
| 20 | Americo Energy Resources, LLC | Houston, TX 77063 | Oil & Gas Operator | Feb 2025 |
| 21 | Amoco Production Co. | Houston, TX 77253 | Oil & Gas Operator | Jun 2015 |
| 22 | Anadarko Petroleum Corporation | Houston, TX 77251 | Oil & Gas Operator | Dec 2024 |
| 23 | Angle Oil Company | Hays, KS 67601 | Oil Operator | Sep 2002 |
| 24 | Apache Corporation | Houston, TX 77042 | Oil & Gas Operator | Feb 2025 |
| 25 | Apc Operating Partnership | Tulsa, OK 74136 | Oil & Gas Operator | Oct 1996 |
| 26 | Apex Resources LLC | Kilgore, TX 75663 | Oil & Gas Operator | Feb 2025 |
| 27 | Apv McCamey LLC | MC Camey, TX 79752 | Oil & Gas Operator | Feb 2025 |
| 28 | Arch Oil & Gas, LLC | Dallas, TX 75254 | Oil & Gas Operator | Feb 2025 |
| 29 | Arco Oil & Gas Company | Plano, TX 75086 | Oil & Gas Operator | Mar 2006 |
| 30 | Area Pipe And Equipment | Midland, TX 79702 | Oil & Gas Operator | Apr 2003 |
| 31 | Arkland Producing Co Inc | Midland, TX 79701 | Oil & Gas Operator | Nov 2023 |
| 32 | Aroc (Texas) Inc | Houston, TX 77090 | Oil & Gas Operator | Dec 2014 |
| 33 | Arya Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2025 |
| 34 | Atapco | Houston, TX 77040 | Oil & Gas Operator | Feb 1999 |
| 35 | Athlon Energy Operating LLC | Denver, CO 80202 | Oil & Gas Operator | Apr 2014 |
| 36 | Athlon Fe Operating LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Jan 2015 |
| 37 | Athlon Holdings LP | Denver, CO 80202 | Oil & Gas Operator | Jan 2015 |
| 38 | Atropos Production Corporation | Dallas, TX 75225 | Oil & Gas Operator | Feb 2025 |
| 39 | Autumn Energy LLC | Andrews, TX 79714 | Oil Operator | Aug 2017 |
| 40 | Autumn Energy Operating | Midland, TX 79710 | Oil & Gas Operator | Feb 2025 |
| 41 | B & G Energy Corporation | Dallas, TX 75214 | Oil & Gas Operator | Feb 2025 |
| 42 | B J Resources, L.L.C. | Athens, TX 75751 | Oil & Gas Operator | Feb 2025 |
| 43 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Feb 2025 |
| 44 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 45 | Barnett Energy, Inc. | The Colony, TX 75056 | Oil & Gas Operator | Feb 2025 |
| 46 | Barrett Brothers Oil & Gas, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2020 |
| 47 | Basa Resources Inc | Dallas, TX 75254 | Oil & Gas Operator | Feb 2025 |
| 48 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Feb 2025 |
| 49 | Basin Oil & Gas Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Feb 2025 |
| 50 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 51 | Battlecat Operating Company, LLC | Houston, TX 77082 | Oil & Gas Operator | Jul 2019 |
| 52 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 53 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 54 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
| 55 | Baylor Operating, LLC | Austin, TX 78766 | Oil & Gas Operator | Feb 2025 |
| 56 | Bayridge Texas Corp. | Big Spring, TX 79720 | Oil & Gas Operator | Jul 2004 |
| 57 | Bayswater Operating Company LLC | Denver, CO 80202 | Oil & Gas Operator | Feb 2025 |
| 58 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 59 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Feb 2025 |
| 60 | BCP Resources, LLC | Midland, TX 79705 | Oil & Gas Operator | Feb 2025 |
| 61 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2025 |
| 62 | Beasley, Kenneth | Abilene, TX 79602 | Oil & Gas Operator | Feb 2025 |
| 63 | Bedford Oil & Gas, Inc. | Luling, TX 78648 | Oil & Gas Operator | Feb 2025 |
| 64 | Beech Resources LLC | Williamsport, PA 17701-6209 | Gas Operator | Dec 2024 |
| 65 | Beekay Company | Dallas, TX 75219 | Oil & Gas Operator | Dec 1996 |
| 66 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 67 | Benson & Schoen Oil Co., Inc. | Abilene, TX 79602 | Oil & Gas Operator | Apr 2012 |
| 68 | Beryl Oil And Gas, LP | Midland, TX 79710 | Oil & Gas Operator | Feb 2025 |
| 69 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Feb 2025 |
| 70 | Big D Energy Company | New Braunfels, TX 78132 | Oil & Gas Operator | Feb 2025 |
| 71 | Big Star Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2017 |
| 72 | Bills, L. T. | Snyder, TX 79549 | Oil & Gas Operator | Feb 2025 |
| 73 | Birch Operations, Inc. | Houston, TX 77010 | Oil & Gas Operator | Feb 2025 |
| 74 | BKM Production | Gainesville, TX 76240 | Oil & Gas Operator | Feb 2025 |
| 75 | Black Gold Energy LLC | Jenks, OK 74037 | Oil Operator | Jun 2024 |
| 76 | Black Oil Company, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Jun 2010 |
| 77 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 78 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 79 | Bledsoe Petro Corporation | Dallas, TX 75201 | Oil & Gas Operator | Dec 2000 |
| 80 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2025 |
| 81 | Blue River Inc. | Abilene, TX 79608 | Oil Operator | Feb 2025 |
| 82 | Bluemark Energy LLC | Tulsa, OK 74120 | Oil & Gas Operator | Nov 2024 |
| 83 | Bomar Operating Co., LC | Bellaire, TX 77401 | Oil & Gas Operator | Feb 2025 |
| 84 | Bond Operating Company | Dallas, TX 75219 | Oil & Gas Operator | Feb 2025 |
| 85 | Boss Services, L.L.C. | Ira, TX 79527 | Oil & Gas Operator | Aug 2019 |
| 86 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Feb 2025 |
| 87 | Boyles, L. S. | Del Rio, TX 78840 | Oil & Gas Operator | Feb 2025 |
| 88 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Feb 2025 |
| 89 | BP Products North America Inc | Chicago, IL 60606 | Gas Operator | Jan 2017 |
| 90 | Brahaney Drilling Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2014 |
| 91 | Braman, D. H., Jr. | Victoria, TX 77901 | Oil & Gas Operator | Dec 2008 |
| 92 | Brammer Supply Inc | Gainesville, TX 76240 | Oil & Gas Operator | Nov 2014 |
| 93 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Feb 2025 |
| 94 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2024 |
| 95 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Feb 2025 |
| 96 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
| 97 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 98 | Broman Oil & Gas LP | Fort Worth, TX 76102 | Oil & Gas Operator | May 2017 |
| 99 | Brooks, E. B., Jr. | Dallas, TX 75206 | Oil & Gas Operator | May 2018 |
| 100 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Feb 2025 |