| 1 | B.P. Oil Company | Midland, TX 79706 | Oil & Gas Operator | Dec 2025 |
| 2 | Badger Oil Company | Midland, TX 79701 | Oil & Gas Operator | Jun 1996 |
| 3 | Baker Resources | San Angelo, TX 76902 | Oil & Gas Operator | Aug 2021 |
| 4 | Baker Resources, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Dec 2025 |
| 5 | Balcones Production Company | Houston, TX 77002 | Oil & Gas Operator | Feb 1996 |
| 6 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 7 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 8 | Barron Petroleum LLC | San Antonio, TX 78205 | Oil & Gas Operator | Dec 2025 |
| 9 | Basic Energy Services, L.P. | Fort Worth, TX 76102 | Oil Operator | Dec 2025 |
| 10 | Bass Enterprises Production Co | Fort Worth, TX 76102 | Oil & Gas Operator | Dec 2006 |
| 11 | Baxter, Kelly H. | Austin, TX 78767 | Oil & Gas Operator | Mar 2008 |
| 12 | Bay Rock Operating Company | San Antonio, TX 78212 | Oil & Gas Operator | Dec 2025 |
| 13 | Baylor Operating, LLC | San Antonio, TX 78217 | Oil & Gas Operator | Dec 2025 |
| 14 | Bayou Bend Petroleum Corporation | Austin, TX 78734 | Oil & Gas Operator | Sep 2006 |
| 15 | Baytech Inc | Midland, TX 79702 | Oil & Gas Operator | Aug 2003 |
| 16 | BC Operating, Inc. | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 17 | Beach Exploration, Inc. | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 18 | Bean & Bean Inc. | Houston, TX 77269 | Oil & Gas Operator | Jan 2023 |
| 19 | Beaver Oil & Gas Operating, LLC | Austin, TX 78746 | Oil & Gas Operator | Dec 2025 |
| 20 | Bedrock Energy Partners, LLC | Houston, TX 77002 | Oil & Gas Operator | Dec 2025 |
| 21 | Bedrock Production, LLC | Fort Worth, TX 76106 | Oil & Gas Operator | Dec 2025 |
| 22 | Belco Energy Corp. | Dallas, TX 75231 | Oil & Gas Operator | Mar 2015 |
| 23 | Belvan Corp. | Midland, TX 79701 | Oil & Gas Operator | Jun 1998 |
| 24 | Bennett, R. C., Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2019 |
| 25 | Bettis, Boyle & Stovall | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 26 | BHP Billiton Pet(Txla Op) Co | Denver, CO 80202 | Oil & Gas Operator | Jul 2019 |
| 27 | BHP Petroleum (Americas) Inc | Houston, TX 77056 | Oil & Gas Operator | Mar 2015 |
| 28 | Bishop, D. L. | Midland, TX 79702 | Oil & Gas Operator | Mar 2012 |
| 29 | BKM Production | Gainesville, TX 76240 | Oil & Gas Operator | Dec 2025 |
| 30 | Blackbeard Operating, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2025 |
| 31 | Blackstone Energy Services LLC | Christoval, TX 76935 | Oil & Gas Operator | Dec 2025 |
| 32 | Blair Exploration, Inc. | Midland, TX 79702 | Oil & Gas Operator | Apr 2011 |
| 33 | Blanco Oil Co. | San Antonio, TX 78230 | Oil & Gas Operator | Feb 2004 |
| 34 | Bledsoe Partners, Inc. | Oklahoma City, OK 73120 | Oil & Gas Operator | Mar 1995 |
| 35 | Blue Grass Energy, Inc. | Houston, TX 77057 | Oil & Gas Operator | Nov 2025 |
| 36 | Blue Ridge Oil & Gas Exp., Inc. | Belleville, MI 48111 | Gas Operator | Jul 1994 |
| 37 | Boaz Energy II Operating, LLC | Midland, TX 79705 | Oil & Gas Operator | Dec 2025 |
| 38 | Bob Hughes Oil Company, LLC | San Angelo, TX 76901 | Oil & Gas Operator | Dec 2025 |
| 39 | Bodark Oil Company | Ozona, TX 76943 | Oil & Gas Operator | Jul 2009 |
| 40 | Bolding Energy, LLC | Sterling City, TX 76951 | Oil & Gas Operator | Dec 2025 |
| 41 | Bomar Operating Co., LC | Bellaire, TX 77401 | Oil & Gas Operator | Dec 2025 |
| 42 | Bonfire Operating LLC | Cresson, TX 76035 | Oil & Gas Operator | Dec 2025 |
| 43 | Boyd & McWilliams Energy Group | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 44 | BP America Production Company | Denver, CO 80202 | Oil & Gas Operator | Nov 2025 |
| 45 | BP Prod. Corp. | Richardson, TX 75083 | Oil & Gas Operator | Dec 2025 |
| 46 | Brahaney Drilling Co. | Midland, TX 79702 | Oil & Gas Operator | Feb 2014 |
| 47 | Brazos Petroleum, Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 48 | Breck Operating Corp. | Breckenridge, TX 76424 | Oil & Gas Operator | Nov 2025 |
| 49 | Breeze Resources, Inc. | Tulsa, OK 74136 | Oil & Gas Operator | Sep 1993 |
| 50 | Bridge Oil Company LP | Midland, TX 79702 | Oil & Gas Operator | May 1999 |
| 51 | Bridwell Oil Company | Wichita Falls, TX 76307 | Oil & Gas Operator | Dec 2025 |
| 52 | Bright & Company | The Colony, TX 75056 | Oil & Gas Operator | May 2015 |
| 53 | Bright Oil Company | Cumming, GA 30028 | Oil & Gas Operator | Dec 2025 |
| 54 | Bristol Resources Corporation | Tulsa, OK 74170 | Oil & Gas Operator | Feb 2022 |
| 55 | Brody Oil & Gas Services, Inc. | Kermit, TX 79745 | Oil & Gas Operator | Dec 2025 |
| 56 | Broman Oil & Gas LP | Fort Worth, TX 76102 | Oil & Gas Operator | May 2017 |
| 57 | Brothers Production Company Inc. | Midland, TX 79708 | Oil & Gas Operator | Dec 2025 |
| 58 | Brotherton Production Co. | Spokane, WA 99216 | Oil & Gas Operator | Dec 2025 |
| 59 | Brower Oil & Gas Co., Inc. | Graham, TX 76450 | Oil & Gas Operator | Dec 2025 |
| 60 | Brown Tom Inc | Dallas, TX 75240 | Oil & Gas Operator | Mar 2015 |
| 61 | Brown, H. L., Jr. | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 62 | BRP Energy, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Dec 2025 |
| 63 | Bta Oil Producers | Midland, TX 79701 | Oil & Gas Operator | Sep 2009 |
| 64 | Bta Oil Producers, LLC | Midland, TX 79701 | Oil & Gas Operator | Dec 2025 |
| 65 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2025 |
| 66 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Dec 2025 |
| 67 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 68 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 69 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 70 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Dec 2025 |
| 71 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Dec 2025 |