| 1 | B & B Energy (I) | Imperial, TX 79743 | Oil & Gas Operator | Oct 2025 |
| 2 | B & B Operating Company | Odessa, TX 79760 | Oil & Gas Operator | Oct 2025 |
| 3 | B & H Oilfield Services | Midland, TX 79702 | Oil & Gas Operator | Jul 1996 |
| 4 | Badger Oil Company | Midland, TX 79701 | Oil & Gas Operator | Jun 1996 |
| 5 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
| 6 | Baker Operating, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Oct 2025 |
| 7 | Baker Resources | San Angelo, TX 76902 | Oil & Gas Operator | Aug 2021 |
| 8 | Baker Resources, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Oct 2025 |
| 9 | Banks, R. C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2016 |
| 10 | Barnhart Co. | Houston, TX 77056 | Oil & Gas Operator | Oct 2025 |
| 11 | Barrett Brothers Oil & Gas, Inc. | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2020 |
| 12 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Oct 2025 |
| 13 | Basin Oil & Gas Operating LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2025 |
| 14 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 15 | Batie, Patricia | Odessa, TX 79764 | Oil Operator | Nov 2024 |
| 16 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 17 | Baxter, Kelly H. Oil And Gas Co. | Austin, TX 78767 | Oil & Gas Operator | Nov 2010 |
| 18 | Baxter, Murphy H. | Houston, TX 77002 | Oil & Gas Operator | Sep 1998 |
| 19 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Oct 2025 |
| 20 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 21 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 22 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 23 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 24 | Beach Oil & Gas, Inc. | Lubbock, TX 79464 | Oil & Gas Operator | Oct 2025 |
| 25 | Beaver Oil & Gas Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Oct 2025 |
| 26 | Bebco Parts Industries, Inc. | Monahans, TX 79756 | Oil & Gas Operator | Oct 2025 |
| 27 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 28 | Belvan Corp. | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |
| 29 | Bennett, M. Brad LP | Midland, TX 79710 | Oil & Gas Operator | Jan 2006 |
| 30 | Bepco, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2008 |
| 31 | Berexco Inc. | Wichita, KS 67208 | Oil & Gas Operator | Oct 2009 |
| 32 | Berry, O. H. | Midland, TX 79702 | Oil & Gas Operator | Dec 1993 |
| 33 | Besto Oil & Gas, Inc. | Odessa, TX 79768 | Oil & Gas Operator | Oct 2018 |
| 34 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 35 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 36 | Big Star Oil & Gas, LLC | Midland, TX 79710 | Oil & Gas Operator | Sep 2017 |
| 37 | Bishop, D. L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2012 |
| 38 | Bitz, M. J. Company | Fort Worth, TX 76116 | Oil & Gas Operator | Aug 2003 |
| 39 | BJG Operating Company | Midland, TX 79702 | Oil Operator | Oct 2025 |
| 40 | Black Bayou Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Jan 2025 |
| 41 | Black Horse Resources, LLC | Oklahoma City, OK 73112 | Oil & Gas Operator | Sep 2024 |
| 42 | Black Mountain Oil & Gas II LLC | Fort Worth, TX 76102 | Oil & Gas Operator | Mar 2021 |
| 43 | Black Mountain SWD LP | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 44 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2025 |
| 45 | Blackwelder Oil | MC Camey, TX 79752 | Oil Operator | Oct 2025 |
| 46 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 47 | Blair, R. W. | FT Stockton, TX 79735 | Oil & Gas Operator | Dec 2009 |
| 48 | Blake Oil & Gas Corporation | Midland, TX 79701 | Oil & Gas Operator | May 2004 |
| 49 | Bledsoe Partners, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 1995 |
| 50 | Blue Grass Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Jul 2025 |
| 51 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 52 | Bluestone Natural Res. II, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2019 |
| 53 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 54 | Bob & Ted'S Operating | Lewisville, TX 75067 | Oil & Gas Operator | Apr 1993 |
| 55 | Bopco, L.P. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 56 | Boyd & McWilliams Operating, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 57 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 58 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Oct 2025 |
| 59 | Brady, W. Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 60 | Brahman Oil & Gas, LLC | Houston, TX 77063 | Oil & Gas Operator | Oct 2025 |
| 61 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 62 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 63 | Breitburn Operating LP | Houston, TX 77002 | Oil & Gas Operator | Oct 2025 |
| 64 | Brigham Resources Operating, LLC | Austin, TX 78730 | Oil & Gas Operator | Jun 2017 |
| 65 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 66 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 67 | Britanco, L.L.C. | Falls City, TX 78113 | Oil & Gas Operator | Oct 2025 |
| 68 | Brock, J. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 69 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 70 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 71 | Brown, George R. Partnership,The | Houston, TX 77002 | Oil & Gas Operator | May 2006 |
| 72 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 73 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 74 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 75 | BRP Energy, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Oct 2025 |
| 76 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 77 | Buckeye Energy Inc | Midland, TX 79702 | Oil & Gas Operator | Dec 2018 |
| 78 | Bugington Energy, LLC | Odessa, TX 79768 | Oil & Gas Operator | Apr 2018 |
| 79 | Bulldog Operating Company | Artesia, NM 88211 | Oil & Gas Operator | Oct 2025 |
| 80 | Burgundy Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 81 | Burkholder, Terry L., Inc. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2002 |
| 82 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 83 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 84 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 85 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Oct 2025 |
| 86 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 87 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Oct 2025 |
| 88 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 89 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 90 | Butler, C. D. | Grandfalls, TX 79742 | Oil & Gas Operator | Dec 2004 |
| 91 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |