| 801 | B-K Operating | Whitesboro, TX 76273 | Oil & Gas Operator | Oct 1997 |
| 802 | B-T Oil Field Supply, Inc. | Caldwell, TX 77836 | Oil & Gas Operator | Jul 2002 |
| 803 | B-Tech. Pet., Inc. | Breckenridge, TX 76424 | Oil & Gas Operator | Jan 2005 |
| 804 | B-W Oil | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 805 | B. & L. Oil Company | Seguin, TX 78155 | Oil & Gas Operator | Apr 2026 |
| 806 | B. & M. Family Oil Company | Midland, TX 79708 | Oil & Gas Operator | Jan 1999 |
| 807 | B. B. & C. | Big Spring, TX 79720 | Oil Operator | Apr 2026 |
| 808 | B. J. P. Operating | Luling, TX 78648 | Oil & Gas Operator | Apr 2026 |
| 809 | B. M. J. Oil Venture | Luling, TX 78648 | Oil & Gas Operator | Jun 2005 |
| 810 | B. W. P., Inc. | Diboll, TX 75941 | Oil & Gas Operator | Mar 2015 |
| 811 | B.A.C.O.C., Inc. | Bryan, TX 77802 | Oil & Gas Operator | May 1997 |
| 812 | B.A.R. Treating Service, Inc. | Austin, TX 78746 | Oil & Gas Operator | Apr 2026 |
| 813 | B.E.G. Production | Iowa Park, TX 76367 | Oil & Gas Operator | Apr 2026 |
| 814 | B.N.B. Production | Corpus Chrsti, TX 78403 | Oil & Gas Operator | May 1993 |
| 815 | B.N.B. Production Inc. | Austin, TX 78720 | Oil & Gas Operator | May 1996 |
| 816 | B.O. Oil Company | Houston, TX 77089 | Oil & Gas Operator | Apr 2026 |
| 817 | B.O.L.D. Oil And Gas, LLC | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |
| 818 | B.P. Oil Company | Midland, TX 79706 | Oil & Gas Operator | Apr 2026 |
| 819 | B.P. Productions Inc. | Victoria, TX 77904 | Oil & Gas Operator | Apr 2026 |
| 820 | B.R.H. Investments, Inc. | Abilene, TX 79608 | Oil & Gas Operator | Apr 1998 |
| 821 | B.W.O.C., Inc. | Plano, TX 75026 | Oil & Gas Operator | Apr 2026 |
| 822 | Baber Well Servicing Co. | Hobbs, NM 88240 | Oil & Gas Operator | May 1995 |
| 823 | Baber, Bill M. | Petrolia, TX 76377 | Oil & Gas Operator | Apr 2026 |
| 824 | Bachtell Oil & Gas, LTD. | Longview, TX 75605 | Oil & Gas Operator | Apr 2026 |
| 825 | Bachtell, Charles Ray | Longview, TX 75605 | Oil & Gas Operator | Feb 2004 |
| 826 | Bacon Energy | Cisco, TX 76437 | Oil & Gas Operator | Apr 2026 |
| 827 | Badger Energy, Inc. | Austin, TX 78714 | Oil & Gas Operator | Apr 2026 |
| 828 | Badger Oil Company | Midland, TX 79701 | Oil & Gas Operator | Jun 1996 |
| 829 | Badger Oil Corporation | Lafayette, LA 70505 | Oil & Gas Operator | Nov 2011 |
| 830 | Bagby Energy LLC | Fort Smith, AR 72913 | Gas Operator | Apr 2010 |
| 831 | Bagley, Roy | Magnolia, TX 77354 | Oil & Gas Operator | Apr 2026 |
| 832 | Bah-Pepper Operating, LLC | Nocona, TX 76255 | Oil & Gas Operator | Apr 2026 |
| 833 | Bahr Oil & Gas | FT Walton BCH, FL 32548 | Oil & Gas Operator | Apr 2026 |
| 834 | Bailey Oil Co., Inc. | Neodesha, KS 66757 | Oil Operator | Dec 2009 |
| 835 | Bailey Petroleum, Inc. | League City, TX 77573 | Oil & Gas Operator | Apr 2026 |
| 836 | Bailey, L. J. | Pleasanton, TX 78064 | Oil & Gas Operator | Jul 2003 |
| 837 | Bair'S Lease Service, Inc. | Luling, TX 78648 | Oil & Gas Operator | Apr 2026 |
| 838 | Baird Oil Company Inc | Lewisville, TX 75067 | Oil & Gas Operator | Apr 2026 |
| 839 | Baja Production | Bridgeport, TX 76426 | Oil & Gas Operator | Apr 2026 |
| 840 | Baker Operating, Inc. | Odessa, TX 79764 | Oil & Gas Operator | Apr 2026 |
| 841 | Baker Petroleum | Corpus Chrsti, TX 78403 | Oil & Gas Operator | Oct 1999 |
| 842 | Baker Resources | San Angelo, TX 76902 | Oil & Gas Operator | Aug 2021 |
| 843 | Baker Resources, LLC | San Angelo, TX 76902 | Oil & Gas Operator | Apr 2026 |
| 844 | Baker, Brent Oil & Gas, Inc. | Oklahoma City, OK 73149 | Oil & Gas Operator | Apr 2026 |
| 845 | Balance Production Corporation | Temple, TX 76503 | Oil & Gas Operator | Sep 2025 |
| 846 | Balcones Production Company | Houston, TX 77002 | Oil & Gas Operator | Feb 1996 |
| 847 | Bald Eagle Operating Inc. | Midland, TX 79707 | Oil & Gas Operator | Apr 2026 |
| 848 | Baldwin And Baldwin Oil Co. | Midland, TX 79702 | Oil & Gas Operator | Aug 1993 |
| 849 | Baldwin, C. R. Jr. | South Bend, TX 76481 | Oil & Gas Operator | Feb 2000 |
| 850 | Bales, D. F. & M. L. | Burkburnett, TX 76354 | Oil & Gas Operator | Apr 2026 |
| 851 | Ball Producing Co. | Eastland, TX 76448 | Oil & Gas Operator | Apr 2026 |
| 852 | Ballard Exploration Company,Inc. | Houston, TX 77002 | Oil & Gas Operator | Apr 2026 |
| 853 | Ballou Enterprises, Inc. | Horseshoe Bay, TX 78657 | Oil & Gas Operator | Jan 1997 |
| 854 | Baltic Royalty Corp. | Dallas, TX 75209 | Oil & Gas Operator | Mar 2008 |
| 855 | Bam Operating, Inc. | Eastland, TX 76448 | Oil & Gas Operator | Nov 2014 |
| 856 | Bam Permian Operating, LLC | Midland, TX 79707 | Oil & Gas Operator | Apr 2026 |
| 857 | Bam Production Company | Granbury, TX 76048 | Oil & Gas Operator | Aug 2003 |
| 858 | Bammert, H. L. | Weesatche, TX 77993 | Oil & Gas Operator | Sep 2013 |
| 859 | Banam Corporation | Midland, TX 79702 | Oil & Gas Operator | Nov 2013 |
| 860 | Bancroft Venture LLC | Kerens, TX 75144 | Oil Operator | Apr 2026 |
| 861 | Bandera Eagle Ford, LLC | Fort Worth, TX 76107 | Oil & Gas Operator | Apr 2026 |
| 862 | Bandera Exploration Company | Dallas, TX 75225 | Oil & Gas Operator | Jan 2017 |
| 863 | Bandera Oil & Gas Inc | Fulshear, TX 77441 | Oil & Gas Operator | Apr 2026 |
| 864 | Bandera Petroleum, Inc. | Abilene, TX 79606 | Oil & Gas Operator | Nov 2018 |
| 865 | Banding M R Inc | Gillette, WY 82717 | Oil & Gas Operator | Feb 2026 |
| 866 | Bankhead E & P LLC | Farmers BRNCH, TX 75234 | Oil & Gas Operator | Apr 2026 |
| 867 | Bankhead Operating Corp. | Wichita Falls, TX 76307 | Oil & Gas Operator | Apr 2026 |
| 868 | Banks, R. C. | Midland, TX 79702 | Oil & Gas Operator | Apr 2016 |
| 869 | Banlee Energy | Fort Worth, TX 76107 | Oil & Gas Operator | Dec 2010 |
| 870 | Banner Oil & Gas LLC | Oklahoma City, OK 73159 | Oil & Gas Operator | Feb 2026 |
| 871 | Banner Operating, LLC | Austin, TX 78735 | Oil & Gas Operator | Apr 2026 |
| 872 | Bannon Energy Inc | Houston, TX 77068 | Oil & Gas Operator | Jun 1998 |
| 873 | Banquet Production, LLC | Woodson, TX 76491 | Oil Operator | Apr 2026 |
| 874 | Bar D Energy, LLC | Lubbock, TX 79423 | Oil & Gas Operator | Apr 2026 |
| 875 | Bar H Production, Inc. | Wichita Falls, TX 76301 | Oil & Gas Operator | Apr 1997 |
| 876 | Bar J-B Co., Inc. | Corsicana, TX 75151 | Oil Operator | Apr 2026 |
| 877 | Bar L Producers | Fritch, TX 79036 | Oil & Gas Operator | Feb 2025 |
| 878 | Bar Operating Production Co. | Abilene, TX 79604 | Oil & Gas Operator | Feb 2004 |
| 879 | Bar V Energy LLC | Poteet, TX 78065 | Oil Operator | Apr 2026 |
| 880 | Bar-Mac Investments Inc. | Brenham, TX 77834 | Oil & Gas Operator | Jun 2017 |
| 881 | Bara Corporation | Flower Mound, TX 75027 | Oil & Gas Operator | Apr 2004 |
| 882 | Barbee, Bill J. | Amarillo, TX 79101 | Oil & Gas Operator | Dec 1994 |
| 883 | Barbee, Inc. | Abilene, TX 79604 | Oil & Gas Operator | Mar 2008 |
| 884 | Barbee, R.L. Operating, Inc. | Corpus Chrsti, TX 78427 | Oil & Gas Operator | Apr 2026 |
| 885 | Barber, B. S. | Kilgore, TX 75662 | Oil & Gas Operator | Nov 1998 |
| 886 | Barbour Energy Corporation | Oklahoma City, OK 73113 | Oil & Gas Operator | Apr 2026 |
| 887 | Barden/Bass O & G Expl. Co. Inc. | Terrell, TX 75160 | Oil & Gas Operator | Mar 2008 |
| 888 | Barger Petroleum Co. | Irving, TX 75061 | Oil & Gas Operator | Jan 2019 |
| 889 | Bargo Energy Company | Houston, TX 77010 | Oil & Gas Operator | May 2001 |
| 890 | Barj Oil Co. | Brownfield, TX 79316 | Oil & Gas Operator | Apr 2026 |
| 891 | Barker Production Co. | Shamrock, TX 79079 | Oil & Gas Operator | Mar 2010 |
| 892 | Barker Production Co., LP | San Angelo, TX 76904 | Oil & Gas Operator | Apr 2026 |
| 893 | Barker, Rodney | Shamrock, TX 79079 | Oil & Gas Operator | Aug 2012 |
| 894 | Barnes Exploration Co. | Nashville, TN 37209 | Oil & Gas Operator | Feb 1995 |
| 895 | Barnes Mineral Production, LTD. | Hallettsville, TX 77964 | Oil & Gas Operator | Apr 2026 |
| 896 | Barnes Oil & Gas LLC | Nashville, TN 37221 | Oil & Gas Operator | Jun 2017 |
| 897 | Barnes, Jerry B. | Gainesville, TX 76241 | Oil & Gas Operator | Oct 2006 |
| 898 | Barnes, K. A. | Somerset, TX 78069 | Oil & Gas Operator | Jan 2013 |
| 899 | Barnes, Larry Petroleum, Inc. | Englewood, CO 80112 | Oil & Gas Operator | Jul 1996 |
| 900 | Barnett Energy, Inc. | Graham, TX 76450 | Oil & Gas Operator | Apr 2026 |