| 1 | B & W Southern Petroleum | The Woodlands, TX 77381 | Oil & Gas Operator | Aug 2009 |
| 2 | B. W. P., Inc. | Diboll, TX 75941 | Oil & Gas Operator | Mar 2015 |
| 3 | B.A.R. Treating Service, Inc. | Austin, TX 78746 | Oil & Gas Operator | Oct 2025 |
| 4 | Baber Well Servicing Co. | Hobbs, NM 88240 | Oil & Gas Operator | May 1995 |
| 5 | Bald Eagle Operating Inc. | Midland, TX 79707 | Oil & Gas Operator | Oct 2025 |
| 6 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 7 | Banding M R Inc | Gillette, WY 82717 | Oil & Gas Operator | Aug 2025 |
| 8 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 9 | Barnett Energy, Inc. | The Colony, TX 75056 | Oil & Gas Operator | Oct 2025 |
| 10 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Oct 2025 |
| 11 | Basin Oil & Gas Operating LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Oct 2025 |
| 12 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 13 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Oct 2025 |
| 14 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 15 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 16 | BCP Resources, LLC | Midland, TX 79705 | Oil & Gas Operator | Oct 2025 |
| 17 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 18 | Beck Resources Incorporated | Hennessey, OK 73742 | Oil & Gas Operator | Jun 2025 |
| 19 | Beekay Company | Dallas, TX 75219 | Oil & Gas Operator | Dec 1996 |
| 20 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 21 | Bepco, L.P. | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2008 |
| 22 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 23 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 24 | Big Al Oil And Gas | Abilene, TX 79608 | Oil & Gas Operator | Oct 2025 |
| 25 | Big D Energy Company | New Braunfels, TX 78132 | Oil & Gas Operator | Oct 2025 |
| 26 | Big Mountain Operating LLC | Decatur, TX 76234 | Oil & Gas Operator | Oct 2025 |
| 27 | Big Run Production Company | Kilgore, TX 75663 | Oil & Gas Operator | Oct 2025 |
| 28 | Black Arrow Operating, LLC | Dennis, TX 76439 | Oil & Gas Operator | Oct 2025 |
| 29 | Black Bayou Operating, LLC | Fort Worth, TX 76116 | Oil & Gas Operator | Jan 2025 |
| 30 | Black Resources, Inc. | Granbury, TX 76049 | Oil & Gas Operator | Mar 2008 |
| 31 | Black Sheep Oil & Gas LLC | Odessa, TX 79768 | Oil & Gas Operator | Oct 2025 |
| 32 | Blackrock Operating, LLC | Tuscola, TX 79562 | Oil & Gas Operator | Oct 2025 |
| 33 | Blair, Jack N. | Midland, TX 79702 | Oil & Gas Operator | May 1996 |
| 34 | Blanco Oil Co. | San Antonio, TX 78230 | Oil & Gas Operator | Feb 2004 |
| 35 | Block "T" Petroleum, Inc. | Tyler, TX 75707 | Oil & Gas Operator | Oct 2025 |
| 36 | Blue Ridge Resources, LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 37 | Bold Operating, LLC | The Woodlands, TX 77381 | Oil & Gas Operator | May 2019 |
| 38 | Bopco, L.P. | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 39 | Bowman, Fred Inc. | Dallas, TX 75225 | Oil & Gas Operator | Feb 2014 |
| 40 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 41 | Boyd, D. K. Oil And Gas Co.,Inc. | Midland, TX 79703 | Oil & Gas Operator | Oct 2025 |
| 42 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Jun 2025 |
| 43 | Brady, W. Production, Inc. | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 44 | Brahaney Drilling Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2014 |
| 45 | Brahaney Drilling Company, LTD. | Midland, TX 79702 | Oil & Gas Operator | Oct 2015 |
| 46 | Bravo Operating Company | Hobbs, NM 88241 | Oil & Gas Operator | Dec 1995 |
| 47 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Oct 2025 |
| 48 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Jun 2025 |
| 49 | Brigham Oil & Gas, L.P. | Austin, TX 78730 | Oil & Gas Operator | Oct 2015 |
| 50 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 51 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 52 | Brock, J. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 53 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Oct 2025 |
| 54 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 55 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 56 | Brown, H.L. Operating, L.L.C. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 57 | Browning Exploration, Inc. | Dallas, TX 75206 | Oil & Gas Operator | Apr 1994 |
| 58 | Browning Oil Company, Inc. | Dallas, TX 75251 | Oil & Gas Operator | Oct 2025 |
| 59 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 60 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Oct 2025 |
| 61 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Oct 2025 |
| 62 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 63 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 64 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 65 | Burlington Resources O&G | Midland, TX 79710-1810 | Oil & Gas Operator | Mar 1997 |
| 66 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 67 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 68 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Oct 2025 |
| 69 | Butler, Kevin O. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 70 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |
| 71 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |
| 72 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 73 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Oct 2025 |