| 801 | B&E Exploration, Inc. | Perryton, TX 79070 | Oil & Gas Operator | Sep 2009 |
| 802 | B&L Exploration, L.L.C. | Metairie, LA 70001 | Oil & Gas Operator | Apr 2025 |
| 803 | B&L Operating Co. | Price, TX 75687 | Oil & Gas Operator | Apr 2025 |
| 804 | B&L Resources, L.L.C. | Metairie, LA 70001 | Oil & Gas Operator | Apr 2025 |
| 805 | B-3 Oil Co. | Luling, TX 78648 | Oil & Gas Operator | Apr 2025 |
| 806 | B-B Production | Ira, TX 79527 | Oil & Gas Operator | Apr 2025 |
| 807 | B-J Operating Company | Pampa, TX 79066 | Oil & Gas Operator | Apr 2025 |
| 808 | B-Jaks Oil Production | Lubbock, TX 79413 | Oil Operator | Mar 2008 |
| 809 | B-K Operating | Whitesboro, TX 76273 | Oil & Gas Operator | Oct 1997 |
| 810 | B-T Oil Field Supply, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Jul 2002 |
| 811 | B-Tech. Pet., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2005 |
| 812 | B-W Oil | Cisco, TX 76437 | Oil & Gas Operator | Apr 2025 |
| 813 | B. & L. Oil Company | Seguin, TX 78155 | Oil & Gas Operator | Apr 2025 |
| 814 | B. & M. Family Oil Company | Midland, TX 79708 | Oil & Gas Operator | Jan 1999 |
| 815 | B. B. & C. | Big Spring, TX 79720 | Oil Operator | Apr 2025 |
| 816 | B. J. P. Operating | Luling, TX 78648 | Oil & Gas Operator | Apr 2025 |
| 817 | B. M. J. Oil Venture | Luling, TX 78648 | Oil & Gas Operator | Jun 2005 |
| 818 | B. W. P., Inc. | Diboll, TX 75941 | Oil & Gas Operator | Mar 2015 |
| 819 | B.A.C.O.C., Inc. | Bryan, TX 77802 | Oil & Gas Operator | May 1997 |
| 820 | B.A.R. Treating Service, Inc. | Austin, TX 78746 | Oil & Gas Operator | Apr 2025 |
| 821 | B.E.G. Production | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2025 |
| 822 | B.N.B. Production | Corpus Chrsti, TX 78403 | Oil & Gas Operator | May 1993 |
| 823 | B.N.B. Production Inc. | Austin, TX 78720 | Oil & Gas Operator | May 1996 |
| 824 | B.O. Oil Company | Houston, TX 77089 | Oil & Gas Operator | Apr 2025 |
| 825 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2025 |
| 826 | B.P. Oil Company | Midland, TX 79706 | Oil & Gas Operator | Apr 2025 |
| 827 | B.P. Productions Inc. | Victoria, TX 77904 | Oil & Gas Operator | Apr 2025 |
| 828 | B.R.H. Investments, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 1998 |
| 829 | B.W.O.C., Inc. | Plano, TX 75026 | Oil & Gas Operator | Apr 2025 |
| 830 | Baber Well Servicing Co. | Hobbs, NM 88240 | Oil & Gas Operator | May 1995 |
| 831 | Baber, Bill M. | Petrolia, TX 76377 | Oil & Gas Operator | Apr 2025 |
| 832 | Bachtell Oil & Gas, LTD. | Longview, TX 75605 | Oil & Gas Operator | Apr 2025 |
| 833 | Bachtell, Charles Ray | Longview, TX 75605 | Oil & Gas Operator | Feb 2004 |
| 834 | Back, Neville | McLean, TX 79057 | Gas Operator | Jan 1999 |
| 835 | Bacon Energy | Cisco, TX 76437 | Oil & Gas Operator | Apr 2025 |
| 836 | Badger Energy, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2025 |
| 837 | Badger Oil Company | Midland, TX 79701 | Oil & Gas Operator | Jun 1996 |
| 838 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
| 839 | Baf Partnership | Coleman, TX 76834 | Oil & Gas Operator | Aug 1995 |
| 840 | Bagby Energy LLC | Fort Smith, AR 72913 | Gas Operator | Apr 2010 |
| 841 | Bagley, Roy | Magnolia, TX 77354 | Oil & Gas Operator | Apr 2025 |
| 842 | Bah-Pepper Operating, LLC | Nocona, TX 76255 | Oil & Gas Operator | Apr 2025 |
| 843 | Bahr Oil & Gas | Shalimar, FL 32579 | Oil & Gas Operator | Apr 2025 |
| 844 | Bailey Oil Co., Inc. | Neodesha, KS 66757 | Oil & Gas Operator | Jan 2025 |
| 845 | Bailey Petroleum, Inc. | League City, TX 77573 | Oil & Gas Operator | Apr 2025 |
| 846 | Bailey, L. J. | Pleasanton, TX 78064 | Oil & Gas Operator | Jul 2003 |
| 847 | Bair'S Lease Service, Inc. | Luling, TX 78648 | Oil & Gas Operator | Apr 2025 |
| 848 | Baird Oil Company Inc | Lewisville, TX 75067 | Oil & Gas Operator | Apr 2025 |
| 849 | Baja Production | Bridgeport, TX 76426 | Oil & Gas Operator | Apr 2025 |
| 850 | Baker Operating, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Apr 2025 |
| 851 | Baker Petroleum | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Oct 1999 |
| 852 | Baker Resources | San Angelo, TX 76902 | Oil & Gas Operator | Aug 2021 |
| 853 | Baker Resources, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2025 |
| 854 | Baker, Brent Oil & Gas, Inc. | Oklahoma City, OK 73149 | Oil & Gas Operator | Apr 2025 |
| 855 | Balance Production Corporation | Temple, TX 76503 | Oil & Gas Operator | Apr 2025 |
| 856 | Balcones Production Company | Houston, TX 77002 | Oil & Gas Operator | Feb 1996 |
| 857 | Bald Eagle Operating Inc. | Midland, TX 79707 | Oil & Gas Operator | Apr 2025 |
| 858 | Baldwin And Baldwin Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1993 |
| 859 | Bales, D. F. & M. L. | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2025 |
| 860 | Ball Producing Co. | Eastland, TX 76448 | Oil & Gas Operator | Apr 2025 |
| 861 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2025 |
| 862 | Ballou Enterprises, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jan 1997 |
| 863 | Baltic Royalty Corp. | Dallas, TX 75209 | Oil & Gas Operator | Mar 2008 |
| 864 | Bam Operating, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Nov 2014 |
| 865 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Apr 2025 |
| 866 | Bam Production Company | Granbury, TX 76048 | Oil & Gas Operator | Aug 2003 |
| 867 | Bammert, H. L. | Weesatche, TX 77993 | Oil & Gas Operator | Sep 2013 |
| 868 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 869 | Bancroft Venture LLC | Kerens, TX 75144 | Oil Operator | Apr 2025 |
| 870 | Bandera Eagle Ford, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2025 |
| 871 | Bandera Exploration Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2017 |
| 872 | Bandera Oil & Gas Inc | Fulshear, TX 77441 | Oil & Gas Operator | Apr 2025 |
| 873 | Bandera Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2018 |
| 874 | Bankhead E & P LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 2025 |
| 875 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2025 |
| 876 | Banks, R. C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2016 |
| 877 | Banlee Energy | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2010 |
| 878 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Jan 2025 |
| 879 | Banner Operating, LLC | Austin, TX 78735 | Oil & Gas Operator | Apr 2025 |
| 880 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 881 | Banquet Production, LLC | Woodson, TX 76491 | Oil Operator | Apr 2025 |
| 882 | Bar D Energy, LLC | Lubbock, TX 79423 | Oil & Gas Operator | Apr 2025 |
| 883 | Bar H Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1997 |
| 884 | Bar L Producers | Fritch, TX 79036 | Oil & Gas Operator | Feb 2025 |
| 885 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 886 | Bar V Energy LLC | Poteet, TX 78065 | Oil Operator | Apr 2025 |
| 887 | Bar-Mac Investments Inc. | Brenham, TX 77834 | Oil & Gas Operator | Jun 2017 |
| 888 | Bara Corporation | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2004 |
| 889 | Barbee, Bill J. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 1994 |
| 890 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 891 | Barbee, R.L. Operating, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Apr 2025 |
| 892 | Barber, B. S. | Kilgore, TX 75662 | Oil & Gas Operator | Nov 1998 |
| 893 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Apr 2025 |
| 894 | Barden/Bass O & G Expl. Co. Inc. | Terrell, TX 75160 | Oil & Gas Operator | Mar 2008 |
| 895 | Barger Petroleum Co. | Irving, TX 75061 | Oil & Gas Operator | Jan 2019 |
| 896 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 897 | Bargsley, Coy | Abilene, TX 79603 | Oil & Gas Operator | Apr 2025 |
| 898 | Barj Oil Co. | Brownfield, TX 79316 | Oil & Gas Operator | Apr 2025 |
| 899 | Barker Production Co. | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2010 |
| 900 | Barker Production Co., LP | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2025 |