| 901 | Bulldog Exploration, LP | Houston, TX 77090 | Oil & Gas Operator | Apr 2011 |
| 902 | Bulldog Operating Company | Artesia, NM 88211 | Oil & Gas Operator | Feb 2026 |
| 903 | Bullet Development, LLC | Abilene, TX 79601 | Oil & Gas Operator | Feb 2026 |
| 904 | Bullin, R. E. Operating Inc. | Levelland, TX 79336 | Oil & Gas Operator | Feb 2026 |
| 905 | Bullin, R.E. | Levelland, TX 79336 | Oil & Gas Operator | May 1994 |
| 906 | Bullitt Oil | Kilgore, TX 75663 | Oil & Gas Operator | Jul 2016 |
| 907 | Bulwark Oil & Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 908 | Buonadonna Oil LLC | Luling, TX 78648 | Oil Operator | Feb 2026 |
| 909 | Burger, F.W. Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 910 | Burger, Ken | Pampa, TX 79065 | Oil & Gas Operator | Feb 2026 |
| 911 | Burgess Energy, Inc. | South Bend, TX 76481 | Oil & Gas Operator | Feb 2026 |
| 912 | Burgess, Sim E. | Graham, TX 76450 | Oil & Gas Operator | Feb 2026 |
| 913 | Burgess, W. E. | Fort Worth, TX 76147 | Oil & Gas Operator | Feb 2026 |
| 914 | Burgundy Oil & Gas, Inc. | Midland, TX 79701 | Oil & Gas Operator | Feb 2026 |
| 915 | Burk Royalty Co., LTD. | Wichita Falls, TX 76308 | Oil & Gas Operator | Feb 2026 |
| 916 | Burk Royalty Company | Wichita Falls, TX 76308 | Oil & Gas Operator | Jan 2002 |
| 917 | Burk, H. V. | Fort Worth, TX 76101 | Oil & Gas Operator | Jan 2006 |
| 918 | Burk-Gunn Oil Co. | Wichita Falls, TX 76307 | Oil & Gas Operator | Mar 2018 |
| 919 | Burkard Petroleum Company | Houston, TX 77056 | Oil & Gas Operator | May 2003 |
| 920 | Burke, Harry Petroleum | Houston, TX 77080 | Oil & Gas Operator | Nov 2024 |
| 921 | Burkett Drilling | Sunray, TX 79086 | Oil Operator | Feb 2026 |
| 922 | Burkett, J. D. | Archer City, TX 76351 | Oil & Gas Operator | Mar 1994 |
| 923 | Burkholder, Terry L., Inc. | Pecos, TX 79772 | Oil & Gas Operator | Mar 2002 |
| 924 | Burleson Oil Company | Burkburnett, TX 76354 | Oil Operator | Feb 2026 |
| 925 | Burleson Petroleum, Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 926 | Burleson, Jackie A. | Wichita Falls, TX 76307 | Oil & Gas Operator | Feb 2003 |
| 927 | Burleson, Lewis B. Inc. | Midland, TX 79702 | Oil & Gas Operator | Mar 2010 |
| 928 | Burlington Res O & G Co-McCamey | Midland, TX 79702 | Oil Operator | Mar 2002 |
| 929 | Burlington Res O & G Co-Midland | Houston, TX 77252 | Oil & Gas Operator | Mar 2020 |
| 930 | Burlington Res O&G Co-Permian | Midland, TX 79702 | Oil & Gas Operator | May 2002 |
| 931 | Burlington Resources O&G | Midland, TX 79710-1810 | Oil & Gas Operator | Mar 1997 |
| 932 | Burlington Resources Oil & Gas Company LP | Houston, TX 77252 | Oil & Gas Operator | Feb 2026 |
| 933 | Burlington Resources Oil And Gas Co. | Houston, TX 77210 | Oil & Gas Operator | Mar 2023 |
| 934 | Burnett Corp. | Amarillo, TX 79105 | Oil & Gas Operator | May 1998 |
| 935 | Burnett Oil Co Inc | Fort Worth, TX 76102 | Oil & Gas Operator | Feb 2026 |
| 936 | Burns Operating | Wichita Falls, TX 76307 | Oil & Gas Operator | Sep 2002 |
| 937 | Burns Operating LLC | Wichita Falls, TX 76307 | Oil & Gas Operator | Jul 2009 |
| 938 | Burns Production Corporation | Midland, TX 79701 | Oil & Gas Operator | Jul 2008 |
| 939 | Burns, Bill C. | Midland, TX 79701 | Oil & Gas Operator | Dec 1997 |
| 940 | Burns, Gene Oil & Gas | Odessa, TX 79765 | Oil & Gas Operator | Dec 2020 |
| 941 | Burns, P. C. Oil Producers Inc. | Wichita Falls, TX 76308 | Oil & Gas Operator | Dec 2000 |
| 942 | Burro Bluff Corporation | Houston, TX 77024 | Oil & Gas Operator | Feb 2026 |
| 943 | Burtco | Lubbock, TX 79407 | Oil & Gas Operator | Feb 2026 |
| 944 | Burton Services, Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Feb 2026 |
| 945 | Burton, V.C. Oil & Gas, Inc. | Portland, TX 78374 | Oil & Gas Operator | Sep 2016 |
| 946 | Bush Operating | Archer City, TX 76351 | Oil & Gas Operator | Feb 2026 |
| 947 | Bush, Mark A. Oil And Gas Inc. | Houston, TX 77057 | Oil & Gas Operator | Feb 2026 |
| 948 | Bushmaster Production Company, LLC | Corpus Chrsti, TX 78401 | Oil & Gas Operator | Feb 2026 |
| 949 | Bussey, Joe F. | Graham, TX 76450 | Oil & Gas Operator | Mar 2008 |
| 950 | Bustamante Oil Company | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 951 | Bustamante Resources LLC | Midland, TX 79710 | Oil & Gas Operator | Feb 2026 |
| 952 | Butler & Harbison | Olney, TX 76374 | Oil & Gas Operator | Oct 2005 |
| 953 | Butler, C. D. | Grandfalls, TX 79742 | Oil & Gas Operator | Dec 2004 |
| 954 | Butler, Kevin O. | Midland, TX 79702 | Oil & Gas Operator | Mar 2008 |
| 955 | Butler, Kevin O. & Assoc., Inc. | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 956 | Buttes Resources Company | Houston, TX 77056 | Oil & Gas Operator | May 2007 |
| 957 | Buttram Energies Inc | Oklahoma City, OK 73112-7235 | Oil & Gas Operator | Nov 2021 |
| 958 | Buxton Energy LLC | Oklahoma City, OK 73116-9111 | Oil & Gas Operator | Apr 2014 |
| 959 | BVX Operating, Inc. | Boerne, TX 78006 | Oil & Gas Operator | Feb 2026 |
| 960 | Bwab Incorporated | Denver, CO 80202 | Oil & Gas Operator | Aug 1996 |
| 961 | BXP Operating, LLC | Houston, TX 77079 | Oil & Gas Operator | Feb 2026 |
| 962 | Byers, R.D. | Vernon, TX 76384 | Oil & Gas Operator | Feb 1998 |
| 963 | Byler Drilling Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 964 | Byng Energy Group Inc | Enid, OK 73703 | Oil & Gas Operator | Feb 2026 |
| 965 | Bynum Oil Company, Inc. | Midland, TX 79702 | Oil & Gas Operator | Jul 2003 |
| 966 | Byrd Operating Company | Midland, TX 79702 | Oil & Gas Operator | Feb 2026 |
| 967 | Byrne Oil Company | Lubbock, TX 79424 | Oil & Gas Operator | Feb 2026 |
| 968 | Byrne, Robert E. | Lubbock, TX 79416 | Oil & Gas Operator | Jan 2005 |
| 969 | Bytex Oil Company | Midland, TX 79708 | Oil & Gas Operator | Jan 2019 |